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TSystem.cxx
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1 // @(#)root/base:$Id: 8944840ba34631ec28efc779647618db43c0eee5 $
2 // Author: Fons Rademakers 15/09/95
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2019, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 /** \class TSystem
13 \ingroup Base
14 
15 Abstract base class defining a generic interface to the underlying
16 Operating System.
17 This is not an ABC in the strict sense of the (C++) word. For
18 every member function there is an implementation (often not more
19 than a call to AbstractMethod() which prints a warning saying
20 that the method should be overridden in a derived class), which
21 allows a simple partial implementation for new OS'es.
22 */
23 
24 #include <ROOT/FoundationUtils.hxx>
25 #include "strlcpy.h"
26 #include "TSystem.h"
27 #include "TApplication.h"
28 #include "TException.h"
29 #include "TROOT.h"
30 #include "TClass.h"
31 #include "TClassTable.h"
32 #include "TEnv.h"
33 #include "TOrdCollection.h"
34 #include "TObject.h"
35 #include "TInterpreter.h"
36 #include "TRegexp.h"
37 #include "TObjString.h"
38 #include "TObjArray.h"
39 #include "TError.h"
40 #include "TPluginManager.h"
41 #include "TUrl.h"
42 #include "TVirtualMutex.h"
43 #include "TVersionCheck.h"
44 #include "compiledata.h"
45 #include "RConfigure.h"
46 #include "THashList.h"
47 #include "ThreadLocalStorage.h"
48 
49 #include <functional>
50 #include <iostream>
51 #include <fstream>
52 #include <sstream>
53 #include <string>
54 #include <sys/stat.h>
55 #include <set>
56 
57 #ifdef WIN32
58 #include <io.h>
59 #endif
60 
61 const char *gRootDir = nullptr;
62 const char *gProgName = nullptr;
63 const char *gProgPath = nullptr;
64 
65 TSystem *gSystem = nullptr;
66 TFileHandler *gXDisplay = nullptr; // Display server event handler, set in TGClient
67 
68 static Int_t *gLibraryVersion = nullptr; // Set in TVersionCheck, used in Load()
69 static Int_t gLibraryVersionIdx = 0; // Set in TVersionCheck, used in Load()
71 
72 // Pin vtable
75 
76 ////////////////////////////////////////////////////////////////////////////////
77 /// Create async event processor timer. Delay is in milliseconds.
78 
80 {
81  gROOT->SetInterrupt(kFALSE);
82  TurnOn();
83 }
84 
85 ////////////////////////////////////////////////////////////////////////////////
86 /// Process events if timer did time out. Returns kTRUE if interrupt
87 /// flag is set (by hitting a key in the canvas or selecting the
88 /// Interrupt menu item in canvas or some other action).
89 
91 {
92  if (fTimeout) {
93  if (gSystem->ProcessEvents()) {
94  Remove();
95  return kTRUE;
96  } else {
97  Reset();
98  return kFALSE;
99  }
100  }
101  return kFALSE;
102 }
103 
104 
105 
107 
109 
110 
111 
112 ////////////////////////////////////////////////////////////////////////////////
113 /// Strip off protocol string from specified path
114 
115 const char *TSystem::StripOffProto(const char *path, const char *proto)
116 {
117  return !strncmp(path, proto, strlen(proto)) ? path + strlen(proto) : path;
118 }
119 
120 ////////////////////////////////////////////////////////////////////////////////
121 /// Create a new OS interface.
122 
123 TSystem::TSystem(const char *name, const char *title) : TNamed(name, title)
124 {
125  if (gSystem && name[0] != '-' && strcmp(name, "Generic"))
126  Error("TSystem", "only one instance of TSystem allowed");
127 
128  if (!gLibraryVersion) {
130  memset(gLibraryVersion, 0, gLibraryVersionMax*sizeof(Int_t));
131  }
132 }
133 
134 ////////////////////////////////////////////////////////////////////////////////
135 /// Delete the OS interface.
136 
138 {
139  if (fOnExitList) {
140  fOnExitList->Delete();
142  }
143 
144  if (fSignalHandler) {
147  }
148 
149  if (fFileHandler) {
150  fFileHandler->Delete();
152  }
153 
154  if (fStdExceptionHandler) {
157  }
158 
159  if (fTimers) {
160  fTimers->Delete();
162  }
163 
164  if (fCompiled) {
165  fCompiled->Delete();
167  }
168 
169  if (fHelpers) {
170  fHelpers->Delete();
172  }
173 
174  if (gSystem == this)
175  gSystem = nullptr;
176 }
177 
178 ////////////////////////////////////////////////////////////////////////////////
179 /// Initialize the OS interface.
180 
182 {
183  fNfd = 0;
184  fMaxrfd = -1;
185  fMaxwfd = -1;
186 
187  fSigcnt = 0;
188  fLevel = 0;
189 
193  fTimers = new TOrdCollection;
194 
195  fBuildArch = BUILD_ARCH;
196  fBuildCompiler = COMPILER;
197  fBuildCompilerVersion = COMPILERVERS;
198  fBuildCompilerVersionStr = COMPILERVERSSTR;
199  fBuildNode = BUILD_NODE;
200  fFlagsDebug = CXXDEBUG;
201  fFlagsOpt = CXXOPT;
202  fIncludePath = INCLUDEPATH;
203  fLinkedLibs = LINKEDLIBS;
204  fSoExt = SOEXT;
205  fObjExt = OBJEXT;
207  fMakeSharedLib = MAKESHAREDLIB;
208  fMakeExe = MAKEEXE;
210 
211  if (gEnv && fBeepDuration == 0 && fBeepFreq == 0) {
212  fBeepDuration = gEnv->GetValue("Root.System.BeepDuration", 100);
213  fBeepFreq = gEnv->GetValue("Root.System.BeepFreq", 440);
214  }
215  if (!fName.CompareTo("Generic")) return kTRUE;
216  return kFALSE;
217 }
218 
219 ////////////////////////////////////////////////////////////////////////////////
220 /// Set the application name (from command line, argv[0]) and copy it in
221 /// gProgName.
222 
223 void TSystem::SetProgname(const char *name)
224 {
225  delete [] gProgName;
226  gProgName = StrDup(name);
227 }
228 
229 ////////////////////////////////////////////////////////////////////////////////
230 /// Set DISPLAY environment variable based on utmp entry. Only for UNIX.
231 
233 {
234 }
235 
236 ////////////////////////////////////////////////////////////////////////////////
237 /// Set the system error string. This string will be used by GetError().
238 /// To be used in case one does not want or can use the system error
239 /// string (e.g. because error is generated by a third party POSIX like
240 /// library that does not use standard errno).
241 
242 void TSystem::SetErrorStr(const char *errstr)
243 {
244  ResetErrno(); // so GetError() uses the fLastErrorString
245  GetLastErrorString() = errstr;
246 }
247 
248 ////////////////////////////////////////////////////////////////////////////////
249 /// Return system error string.
250 
251 const char *TSystem::GetError()
252 {
253  if (GetErrno() == 0 && !GetLastErrorString().IsNull())
254  return GetLastErrorString().Data();
255  return Form("errno: %d", GetErrno());
256 }
257 
258 ////////////////////////////////////////////////////////////////////////////////
259 /// Static function returning system error number.
260 
262 {
263 #ifdef _REENTRANT
264  return errno; // errno can be a macro if _REENTRANT is set
265 #else
266 #ifdef R__SOLARIS_CC50
267  return ::errno;
268 #else
269  return errno;
270 #endif
271 #endif
272 }
273 
274 ////////////////////////////////////////////////////////////////////////////////
275 /// Static function resetting system error number.
276 
278 {
279 #ifdef _REENTRANT
280  errno = 0; // errno can be a macro if _REENTRANT is set
281 #else
282 #ifdef R__SOLARIS_CC50
283  ::errno = 0;
284 #else
285  errno = 0;
286 #endif
287 #endif
288 }
289 
290 ////////////////////////////////////////////////////////////////////////////////
291 /// Objects that should be deleted on exit of the OS interface.
292 
294 {
295  if (!fOnExitList)
297  if (!fOnExitList->FindObject(obj))
298  fOnExitList->Add(obj);
299 }
300 
301 ////////////////////////////////////////////////////////////////////////////////
302 /// Return the system's host name.
303 
304 const char *TSystem::HostName()
305 {
306  return "Local host";
307 }
308 
309 ////////////////////////////////////////////////////////////////////////////////
310 /// Hook to tell TSystem that the TApplication object has been created.
311 
313 {
314  // Currently needed only for WinNT interface.
315 }
316 
317 ////////////////////////////////////////////////////////////////////////////////
318 /// Beep for duration milliseconds with a tone of frequency freq.
319 /// Defaults to printing the `\a` character to stdout.
320 /// If freq or duration is <0 respectively, use default value.
321 /// If setDefault is set, only set the frequency and duration as
322 /// new defaults, but don't beep.
323 /// If default freq or duration is <0, never beep (silence)
324 
325 void TSystem::Beep(Int_t freq /*=-1*/, Int_t duration /*=-1*/,
326  Bool_t setDefault /*=kFALSE*/)
327 {
328  if (setDefault) {
329  fBeepFreq = freq;
330  fBeepDuration = duration;
331  return;
332  }
333  if (fBeepDuration < 0 || fBeepFreq < 0) return; // silence
334  if (freq < 0) freq = fBeepFreq;
335  if (duration < 0) duration = fBeepDuration;
336  DoBeep(freq, duration);
337 }
338 
339 //---- EventLoop ---------------------------------------------------------------
340 
341 ////////////////////////////////////////////////////////////////////////////////
342 /// System event loop.
343 
345 {
346  fInControl = kTRUE;
347  fDone = kFALSE;
348 
349 loop_entry:
350  try {
351  RETRY {
352  while (!fDone) {
354  InnerLoop();
356  }
357  } ENDTRY;
358  }
359  catch (std::exception& exc) {
361  TStdExceptionHandler* eh = 0;
362  while ((eh = (TStdExceptionHandler*) next())) {
363  switch (eh->Handle(exc))
364  {
366  break;
368  goto loop_entry;
369  break;
371  Warning("Run", "instructed to abort");
372  goto loop_end;
373  break;
374  }
375  }
376  throw;
377  }
378  catch (const char *str) {
379  printf("%s\n", str);
380  }
381  // handle every exception
382  catch (...) {
383  Warning("Run", "handle uncaugth exception, terminating");
384  }
385 
386 loop_end:
387  fInControl = kFALSE;
388 }
389 
390 ////////////////////////////////////////////////////////////////////////////////
391 /// Exit from event loop.
392 
394 {
395  fDone = kTRUE;
396 }
397 
398 ////////////////////////////////////////////////////////////////////////////////
399 /// Inner event loop.
400 
402 {
403  fLevel++;
405  fLevel--;
406 }
407 
408 ////////////////////////////////////////////////////////////////////////////////
409 /// Process pending events (GUI, timers, sockets). Returns the result of
410 /// TROOT::IsInterrupted(). The interrupt flag (TROOT::SetInterrupt())
411 /// can be set during the handling of the events. This mechanism allows
412 /// macros running in tight calculating loops to be interrupted by some
413 /// GUI event (depending on the interval with which this method is
414 /// called). For example hitting ctrl-c in a canvas will set the
415 /// interrupt flag.
416 
418 {
419  gROOT->SetInterrupt(kFALSE);
420 
421  if (!gROOT->TestBit(TObject::kInvalidObject))
423 
424  return gROOT->IsInterrupted();
425 }
426 
427 ////////////////////////////////////////////////////////////////////////////////
428 /// Dispatch a single event.
429 
431 {
432  AbstractMethod("DispatchOneEvent");
433 }
434 
435 ////////////////////////////////////////////////////////////////////////////////
436 /// Sleep milliSec milli seconds.
437 
439 {
440  AbstractMethod("Sleep");
441 }
442 
443 ////////////////////////////////////////////////////////////////////////////////
444 /// Select on active file descriptors (called by TMonitor).
445 
447 {
448  AbstractMethod("Select");
449  return -1;
450 }
451 ////////////////////////////////////////////////////////////////////////////////
452 /// Select on active file descriptors (called by TMonitor).
453 
455 {
456  AbstractMethod("Select");
457  return -1;
458 }
459 
460 //---- handling of system events -----------------------------------------------
461 ////////////////////////////////////////////////////////////////////////////////
462 /// Get current time in milliseconds since 0:00 Jan 1 1995.
463 
465 {
466  return TTime(0);
467 }
468 
469 ////////////////////////////////////////////////////////////////////////////////
470 /// Add timer to list of system timers.
471 
473 {
474  if (ti && fTimers && (fTimers->FindObject(ti) == nullptr))
475  fTimers->Add(ti);
476 }
477 
478 ////////////////////////////////////////////////////////////////////////////////
479 /// Remove timer from list of system timers. Returns removed timer or 0
480 /// if timer was not active.
481 
483 {
484  if (fTimers) {
485  TTimer *tr = (TTimer*) fTimers->Remove(ti);
486  return tr;
487  }
488  return nullptr;
489 }
490 
491 ////////////////////////////////////////////////////////////////////////////////
492 /// Time when next timer of mode (synchronous=kTRUE or
493 /// asynchronous=kFALSE) will time-out (in ms).
494 
496 {
497  if (!fTimers) return -1;
498 
500  TTimer *t, *to = nullptr;
501  Long64_t tt, tnow = Now();
502  Long_t timeout = -1;
503 
504  while ((t = (TTimer *) it.Next())) {
505  if (t->IsSync() == mode) {
506  tt = (Long64_t)t->GetAbsTime() - tnow;
507  if (tt < 0) tt = 0;
508  if (timeout == -1) {
509  timeout = (Long_t)tt;
510  to = t;
511  }
512  if (tt < timeout) {
513  timeout = (Long_t)tt;
514  to = t;
515  }
516  }
517  }
518 
519  if (to && to->IsAsync() && timeout > 0) {
520  if (to->IsInterruptingSyscalls())
522  else
524  }
525 
526  return timeout;
527 }
528 
529 ////////////////////////////////////////////////////////////////////////////////
530 /// Add a signal handler to list of system signal handlers. Only adds
531 /// the handler if it is not already in the list of signal handlers.
532 
534 {
535  if (h && fSignalHandler && (fSignalHandler->FindObject(h) == nullptr))
536  fSignalHandler->Add(h);
537 }
538 
539 ////////////////////////////////////////////////////////////////////////////////
540 /// Remove a signal handler from list of signal handlers. Returns
541 /// the handler or 0 if the handler was not in the list of signal handlers.
542 
544 {
545  if (fSignalHandler)
547 
548  return nullptr;
549 }
550 
551 ////////////////////////////////////////////////////////////////////////////////
552 /// Add a file handler to the list of system file handlers. Only adds
553 /// the handler if it is not already in the list of file handlers.
554 
556 {
557  if (h && fFileHandler && !fFileHandler->FindObject(h))
558  fFileHandler->Add(h);
559 }
560 
561 ////////////////////////////////////////////////////////////////////////////////
562 /// Remove a file handler from the list of file handlers. Returns
563 /// the handler or 0 if the handler was not in the list of file handlers.
564 
566 {
567  if (fFileHandler)
568  return (TFileHandler *)fFileHandler->Remove(h);
569 
570  return nullptr;
571 }
572 
573 ////////////////////////////////////////////////////////////////////////////////
574 /// If reset is true reset the signal handler for the specified signal
575 /// to the default handler, else restore previous behaviour.
576 
577 void TSystem::ResetSignal(ESignals /*sig*/, Bool_t /*reset*/)
578 {
579  AbstractMethod("ResetSignal");
580 }
581 
582 ////////////////////////////////////////////////////////////////////////////////
583 /// Reset signals handlers to previous behaviour.
584 
586 {
587  AbstractMethod("ResetSignals");
588 }
589 
590 ////////////////////////////////////////////////////////////////////////////////
591 /// If ignore is true ignore the specified signal, else restore previous
592 /// behaviour.
593 
594 void TSystem::IgnoreSignal(ESignals /*sig*/, Bool_t /*ignore*/)
595 {
596  AbstractMethod("IgnoreSignal");
597 }
598 
599 ////////////////////////////////////////////////////////////////////////////////
600 /// If ignore is true ignore the interrupt signal, else restore previous
601 /// behaviour. Typically call ignore interrupt before writing to disk.
602 
604 {
605  IgnoreSignal(kSigInterrupt, ignore);
606 }
607 
608 ////////////////////////////////////////////////////////////////////////////////
609 /// Add an exception handler to list of system exception handlers. Only adds
610 /// the handler if it is not already in the list of exception handlers.
611 
613 {
616 }
617 
618 ////////////////////////////////////////////////////////////////////////////////
619 /// Remove an exception handler from list of exception handlers. Returns
620 /// the handler or 0 if the handler was not in the list of exception handlers.
621 
623 {
626 
627  return nullptr;
628 }
629 
630 ////////////////////////////////////////////////////////////////////////////////
631 /// Return the bitmap of conditions that trigger a floating point exception.
632 
634 {
635  AbstractMethod("GetFPEMask");
636  return 0;
637 }
638 
639 ////////////////////////////////////////////////////////////////////////////////
640 /// Set which conditions trigger a floating point exception.
641 /// Return the previous set of conditions.
642 
644 {
645  AbstractMethod("SetFPEMask");
646  return 0;
647 }
648 
649 //---- Processes ---------------------------------------------------------------
650 
651 ////////////////////////////////////////////////////////////////////////////////
652 /// Execute a command.
653 
654 int TSystem::Exec(const char *)
655 {
656  AbstractMethod("Exec");
657  return -1;
658 }
659 
660 ////////////////////////////////////////////////////////////////////////////////
661 /// Open a pipe.
662 
663 FILE *TSystem::OpenPipe(const char *, const char *)
664 {
665  AbstractMethod("OpenPipe");
666  return nullptr;
667 }
668 
669 ////////////////////////////////////////////////////////////////////////////////
670 /// Close the pipe.
671 
673 {
674  AbstractMethod("ClosePipe");
675  return -1;
676 }
677 
678 ////////////////////////////////////////////////////////////////////////////////
679 /// Execute command and return output in TString.
680 
681 TString TSystem::GetFromPipe(const char *command)
682 {
683  TString out;
684 
685  FILE *pipe = OpenPipe(command, "r");
686  if (!pipe) {
687  SysError("GetFromPipe", "cannot run command \"%s\"", command);
688  return out;
689  }
690 
691  TString line;
692  while (line.Gets(pipe)) {
693  if (out != "")
694  out += "\n";
695  out += line;
696  }
697 
698  Int_t r = ClosePipe(pipe);
699  if (r) {
700  Error("GetFromPipe", "command \"%s\" returned %d", command, r);
701  }
702  return out;
703 }
704 
705 ////////////////////////////////////////////////////////////////////////////////
706 /// Get process id.
707 
709 {
710  AbstractMethod("GetPid");
711  return -1;
712 }
713 
714 ////////////////////////////////////////////////////////////////////////////////
715 /// Exit the application.
716 
718 {
719  AbstractMethod("Exit");
720 }
721 
722 ////////////////////////////////////////////////////////////////////////////////
723 /// Abort the application.
724 
725 void TSystem::Abort(int)
726 {
727  AbstractMethod("Abort");
728 }
729 
730 ////////////////////////////////////////////////////////////////////////////////
731 /// Print a stack trace.
732 
734 {
735  AbstractMethod("StackTrace");
736 }
737 
738 
739 //---- Directories -------------------------------------------------------------
740 
741 ////////////////////////////////////////////////////////////////////////////////
742 /// Create helper TSystem to handle file and directory operations that
743 /// might be special for remote file access.
744 
745 TSystem *TSystem::FindHelper(const char *path, void *dirptr)
746 {
747  TSystem *helper = nullptr;
748  {
750 
751  if (!fHelpers) {
753  fHelpers = new TOrdCollection;
754  }
755 
756  if (path) {
757  if (!GetDirPtr()) {
758  TUrl url(path, kTRUE);
759  if (!strcmp(url.GetProtocol(), "file"))
760  return nullptr;
761  }
762  }
763 
764  // look for existing helpers
765  TIter next(fHelpers);
766  while ((helper = (TSystem*) next()))
767  if (helper->ConsistentWith(path, dirptr))
768  return helper;
769 
770  if (!path)
771  return nullptr;
772  }
773 
774  // create new helper
775  TRegexp re("^root.*:"); // also roots, rootk, etc
776  TString pname = path;
777  TPluginHandler *h;
778  if (pname.BeginsWith("xroot:") || pname.Index(re) != kNPOS) {
779  // (x)rootd daemon ...
780  if ((h = gROOT->GetPluginManager()->FindHandler("TSystem", path))) {
781  if (h->LoadPlugin() == -1)
782  return nullptr;
783  helper = (TSystem*) h->ExecPlugin(2, path, kFALSE);
784  }
785  } else if ((h = gROOT->GetPluginManager()->FindHandler("TSystem", path))) {
786  if (h->LoadPlugin() == -1)
787  return nullptr;
788  helper = (TSystem*) h->ExecPlugin(0);
789  }
790 
791  if (helper) {
793  fHelpers->Add(helper);
794  }
795 
796  return helper;
797 }
798 
799 ////////////////////////////////////////////////////////////////////////////////
800 /// Check consistency of this helper with the one required
801 /// by 'path' or 'dirptr'
802 
803 Bool_t TSystem::ConsistentWith(const char *path, void *dirptr)
804 {
805  Bool_t checkproto = kFALSE;
806  if (path) {
807  if (!GetDirPtr()) {
808  TUrl url(path, kTRUE);
809  if (!strncmp(url.GetProtocol(), GetName(), strlen(GetName())))
810  checkproto = kTRUE;
811  }
812  }
813 
814  Bool_t checkdir = kFALSE;
815  if (GetDirPtr() && GetDirPtr() == dirptr)
816  checkdir = kTRUE;
817 
818  return (checkproto || checkdir);
819 }
820 
821 ////////////////////////////////////////////////////////////////////////////////
822 /// Make a directory. Returns 0 in case of success and
823 /// -1 if the directory could not be created (either already exists or
824 /// illegal path name).
825 
826 int TSystem::MakeDirectory(const char *)
827 {
828  AbstractMethod("MakeDirectory");
829  return 0;
830 }
831 
832 ////////////////////////////////////////////////////////////////////////////////
833 /// Open a directory. Returns 0 if directory does not exist.
834 
835 void *TSystem::OpenDirectory(const char *)
836 {
837  AbstractMethod("OpenDirectory");
838  return nullptr;
839 }
840 
841 ////////////////////////////////////////////////////////////////////////////////
842 /// Free a directory.
843 
845 {
846  AbstractMethod("FreeDirectory");
847 }
848 
849 ////////////////////////////////////////////////////////////////////////////////
850 /// Get a directory entry. Returns 0 if no more entries.
851 
852 const char *TSystem::GetDirEntry(void *)
853 {
854  AbstractMethod("GetDirEntry");
855  return nullptr;
856 }
857 
858 ////////////////////////////////////////////////////////////////////////////////
859 /// Change directory.
860 
862 {
863  AbstractMethod("ChangeDirectory");
864  return kFALSE;
865 }
866 
867 ////////////////////////////////////////////////////////////////////////////////
868 /// Return working directory.
869 
871 {
872  return nullptr;
873 }
874 
875 //////////////////////////////////////////////////////////////////////////////
876 /// Return working directory.
877 
878 std::string TSystem::GetWorkingDirectory() const
879 {
880  return std::string();
881 }
882 
883 ////////////////////////////////////////////////////////////////////////////////
884 /// Return the user's home directory.
885 
886 const char *TSystem::HomeDirectory(const char *)
887 {
888  return nullptr;
889 }
890 
891 //////////////////////////////////////////////////////////////////////////////
892 /// Return the user's home directory.
893 
894 std::string TSystem::GetHomeDirectory(const char *) const
895 {
896  return std::string();
897 }
898 
899 ////////////////////////////////////////////////////////////////////////////////
900 /// Make a file system directory. Returns 0 in case of success and
901 /// -1 if the directory could not be created (either already exists or
902 /// illegal path name).
903 /// If 'recursive' is true, makes parent directories as needed.
904 
905 int TSystem::mkdir(const char *name, Bool_t recursive)
906 {
907  if (recursive) {
908  TString safeName = name; // local copy in case 'name' is output from
909  // TSystem::DirName as it uses static buffers
910  TString dirname = GetDirName(safeName.Data());
911  if (dirname.IsNull()) {
912  // well we should not have to make the root of the file system!
913  // (and this avoid infinite recursions!)
914  return -1;
915  }
916  if (AccessPathName(dirname.Data(), kFileExists)) {
917  int res = mkdir(dirname.Data(), kTRUE);
918  if (res) return res;
919  }
920  if (!AccessPathName(safeName.Data(), kFileExists)) {
921  return -1;
922  }
923  }
924 
925  return MakeDirectory(name);
926 }
927 
928 //---- Paths & Files -----------------------------------------------------------
929 
930 ////////////////////////////////////////////////////////////////////////////////
931 /// Base name of a file name. Base name of /user/root is root.
932 
933 const char *TSystem::BaseName(const char *name)
934 {
935  if (name) {
936  if (name[0] == '/' && name[1] == '\0')
937  return name;
938  char *cp;
939  if ((cp = (char *)strrchr(name, '/')))
940  return ++cp;
941  return name;
942  }
943  Error("BaseName", "name = 0");
944  return nullptr;
945 }
946 
947 ////////////////////////////////////////////////////////////////////////////////
948 /// Return true if dir is an absolute pathname.
949 
951 {
952  if (dir)
953  return dir[0] == '/';
954  return kFALSE;
955 }
956 
957 ////////////////////////////////////////////////////////////////////////////////
958 /// Return true if 'name' is a file that can be found in the ROOT include
959 /// path or the current directory.
960 /// If 'name' contains any ACLiC style information (e.g. trailing +[+][g|O]),
961 /// it will be striped off 'name'.
962 /// If fullpath is != 0, the full path to the file is returned in *fullpath,
963 /// which must be deleted by the caller.
964 
965 Bool_t TSystem::IsFileInIncludePath(const char *name, char **fullpath)
966 {
967  if (!name || !name[0]) return kFALSE;
968 
969  TString aclicMode;
970  TString arguments;
971  TString io;
972  TString realname = SplitAclicMode(name, aclicMode, arguments, io);
973 
974  TString fileLocation = GetDirName(realname);
975 
976  TString incPath = gSystem->GetIncludePath(); // of the form -Idir1 -Idir2 -Idir3
977  incPath.Append(":").Prepend(" ");
978  incPath.ReplaceAll(" -I",":"); // of form :dir1 :dir2:dir3
979  while ( incPath.Index(" :") != -1 ) {
980  incPath.ReplaceAll(" :",":");
981  }
982  // Remove double quotes around path expressions.
983  incPath.ReplaceAll("\":", ":");
984  incPath.ReplaceAll(":\"", ":");
985 
986  incPath.Prepend(fileLocation+":.:");
987 
988  char *actual = Which(incPath,realname);
989 
990  if (!actual) {
991  return kFALSE;
992  } else {
993  if (fullpath)
994  *fullpath = actual;
995  else
996  delete [] actual;
997  return kTRUE;
998  }
999 }
1000 
1001 ////////////////////////////////////////////////////////////////////////////////
1002 /// Return the directory name in pathname. DirName of /user/root is /user.
1003 /// In case no dirname is specified "." is returned.
1004 
1005 const char *TSystem::DirName(const char *pathname)
1006 {
1007  auto res = GetDirName(pathname);
1008  if (res.IsNull() || (res == "."))
1009  return ".";
1010 
1012 
1013  static Ssiz_t len = 0;
1014  static char *buf = nullptr;
1015  if (res.Length() >= len) {
1016  if (buf) delete [] buf;
1017  len = res.Length() + 50;
1018  buf = new char [len];
1019  }
1020  strncpy(buf, res.Data(), len);
1021  return buf;
1022 }
1023 
1024 ////////////////////////////////////////////////////////////////////////////////
1025 /// Return the directory name in pathname.
1026 /// DirName of /user/root is /user.
1027 /// DirName of /user/root/ is also /user.
1028 /// In case no dirname is specified "." is returned.
1029 
1030 TString TSystem::GetDirName(const char *pathname)
1031 {
1032  if (!pathname || !strchr(pathname, '/'))
1033  return ".";
1034 
1035  auto pathlen = strlen(pathname);
1036 
1037  const char *r = pathname + pathlen - 1;
1038  // First skip the trailing '/'
1039  while ((r > pathname) && (*r == '/'))
1040  --r;
1041  // Then find the next non slash
1042  while ((r > pathname) && (*r != '/'))
1043  --r;
1044 
1045  // Then skip duplicate slashes
1046  // Note the 'r>buf' is a strict comparison to allows '/topdir' to return '/'
1047  while ((r > pathname) && (*r == '/'))
1048  --r;
1049  // If all was cut away, we encountered a rel. path like 'subdir/'
1050  // and ended up at '.'.
1051  if ((r == pathname) && (*r != '/'))
1052  return ".";
1053 
1054  return TString(pathname, r + 1 - pathname);
1055 }
1056 
1057 ////////////////////////////////////////////////////////////////////////////////
1058 /// Convert from a local pathname to a Unix pathname. E.g. from `\user\root` to
1059 /// `/user/root`.
1060 
1061 const char *TSystem::UnixPathName(const char *name)
1062 {
1063  return name;
1064 }
1065 
1066 ////////////////////////////////////////////////////////////////////////////////
1067 /// Concatenate a directory and a file name. User must delete returned string.
1068 
1069 char *TSystem::ConcatFileName(const char *dir, const char *name)
1070 {
1071  TString nameString(name);
1072  PrependPathName(dir, nameString);
1073  return StrDup(nameString.Data());
1074 }
1075 
1076 ////////////////////////////////////////////////////////////////////////////////
1077 /// Concatenate a directory and a file name.
1078 
1079 const char *TSystem::PrependPathName(const char *, TString&)
1080 {
1081  AbstractMethod("PrependPathName");
1082  return nullptr;
1083 }
1084 
1085 
1086 //---- Paths & Files -----------------------------------------------------------
1087 
1088 ////////////////////////////////////////////////////////////////////////////////
1089 /// Expand a pathname getting rid of special shell characters like ~.$, etc.
1090 /// For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
1091 /// environment variables in a pathname. If compatibility is not an issue
1092 /// you can use on Unix directly $XXX. This is a protected function called
1093 /// from the OS specific system classes, like TUnixSystem and TWinNTSystem.
1094 /// Returns the expanded filename or 0 in case of error.
1095 
1096 const char *TSystem::ExpandFileName(const char *fname)
1097 {
1098  const int kBufSize = kMAXPATHLEN;
1099  TTHREAD_TLS_ARRAY(char, kBufSize, xname);
1100 
1101  Bool_t res = ExpandFileName(fname, xname, kBufSize);
1102  if (res)
1103  return nullptr;
1104  else
1105  return xname;
1106 }
1107 
1108 //////////////////////////////////////////////////////////////////////////////
1109 /// Expand a pathname getting rid of special shell characters like ~.$, etc.
1110 /// This function is analogous to ExpandFileName(const char *), except that
1111 /// it receives a TString reference of the pathname to be expanded.
1112 /// Returns kTRUE in case of error and kFALSE otherwise.
1113 
1115 {
1116  const int kBufSize = kMAXPATHLEN;
1117  char xname[kBufSize];
1118 
1119  Bool_t res = ExpandFileName(fname.Data(), xname, kBufSize);
1120  if (!res)
1121  fname = xname;
1122 
1123  return res;
1124 }
1125 
1126 ////////////////////////////////////////////////////////////////////////////
1127 /// Private method for pathname expansion.
1128 /// Returns kTRUE in case of error and kFALSE otherwise.
1129 
1130 Bool_t TSystem::ExpandFileName(const char *fname, char *xname, const int kBufSize)
1131 {
1132  int n, ier, iter, lx, ncopy;
1133  char *inp, *out, *x, *t, *buff;
1134  const char *b, *c, *e;
1135  const char *p;
1136  buff = new char[kBufSize * 4];
1137 
1138  iter = 0; xname[0] = 0; inp = buff + kBufSize; out = inp + kBufSize;
1139  inp[-1] = ' '; inp[0] = 0; out[-1] = ' ';
1140  c = fname + strspn(fname, " \t\f\r");
1141  //VP if (isalnum(c[0])) { strcpy(inp, WorkingDirectory()); strcat(inp, "/"); } // add $cwd
1142 
1143  strlcat(inp, c, kBufSize);
1144 
1145 again:
1146  iter++; c = inp; ier = 0;
1147  x = out; x[0] = 0;
1148 
1149  p = 0; e = 0;
1150  if (c[0] == '~' && c[1] == '/') { // ~/ case
1151  std::string hd = GetHomeDirectory();
1152  p = hd.c_str();
1153  e = c + 1;
1154  if (p) { // we have smth to copy
1155  strlcpy(x, p, kBufSize);
1156  x += strlen(p);
1157  c = e;
1158  } else {
1159  ++ier;
1160  ++c;
1161  }
1162  } else if (c[0] == '~' && c[1] != '/') { // ~user case
1163  n = strcspn(c+1, "/ ");
1164  assert((n+1) < kBufSize && "This should have been prevented by the truncation 'strlcat(inp, c, kBufSize)'");
1165  // There is no overlap here as the buffer is segment in 4 strings of at most kBufSize
1166  (void)strlcpy(buff, c+1, n+1); // strlcpy copy 'size-1' characters.
1167  std::string hd = GetHomeDirectory(buff);
1168  e = c+1+n;
1169  if (!hd.empty()) { // we have smth to copy
1170  p = hd.c_str();
1171  strlcpy(x, p, kBufSize);
1172  x += strlen(p);
1173  c = e;
1174  } else {
1175  x++[0] = c[0];
1176  //++ier;
1177  ++c;
1178  }
1179  }
1180 
1181  for ( ; c[0]; c++) {
1182 
1183  p = 0; e = 0;
1184 
1185  if (c[0] == '.' && c[1] == '/' && c[-1] == ' ') { // $cwd
1186  std::string wd = GetWorkingDirectory();
1187  strlcpy(buff, wd.c_str(), kBufSize);
1188  p = buff;
1189  e = c + 1;
1190  }
1191  if (p) { // we have smth to copy */
1192  strlcpy(x, p, kBufSize); x += strlen(p); c = e-1; continue;
1193  }
1194 
1195  if (c[0] != '$') { // not $, simple copy
1196  x++[0] = c[0];
1197  } else { // we have a $
1198  b = c+1;
1199  if (c[1] == '(') b++;
1200  if (c[1] == '{') b++;
1201  if (b[0] == '$')
1202  e = b+1;
1203  else
1204  for (e = b; isalnum(e[0]) || e[0] == '_'; e++) ;
1205  buff[0] = 0; strncat(buff, b, e-b);
1206  p = Getenv(buff);
1207  if (!p) { // too bad, try UPPER case
1208  for (t = buff; (t[0] = toupper(t[0])); t++) ;
1209  p = Getenv(buff);
1210  }
1211  if (!p) { // too bad, try Lower case
1212  for (t = buff; (t[0] = tolower(t[0])); t++) ;
1213  p = Getenv(buff);
1214  }
1215  if (!p && !strcmp(buff, "cwd")) { // it is $cwd
1216  std::string wd = GetWorkingDirectory();
1217  strlcpy(buff, wd.c_str(), kBufSize);
1218  p = buff;
1219  }
1220  if (!p && !strcmp(buff, "$")) { // it is $$ (replace by GetPid())
1221  snprintf(buff,kBufSize*4, "%d", GetPid());
1222  p = buff;
1223  }
1224  if (!p) { // too bad, nothing can help
1225 #ifdef WIN32
1226  // if we're on windows, we can have \\SomeMachine\C$ - don't
1227  // complain about that, if '$' is followed by nothing or a
1228  // path delimiter.
1229  if (c[1] && c[1]!='\\' && c[1]!=';' && c[1]!='/')
1230  ier++;
1231 #else
1232  ier++;
1233 #endif
1234  x++[0] = c[0];
1235  } else { // It is OK, copy result
1236  int lp = strlen(p);
1237  if (lp >= kBufSize) {
1238  // make sure lx will be >= kBufSize (see below)
1239  strlcpy(x, p, kBufSize);
1240  x += kBufSize;
1241  break;
1242  }
1243  strcpy(x,p);
1244  x += lp;
1245  c = (b==c+1) ? e-1 : e;
1246  }
1247  }
1248  }
1249 
1250  x[0] = 0; lx = x - out;
1251  if (ier && iter < 3) { strlcpy(inp, out, kBufSize); goto again; }
1252  ncopy = (lx >= kBufSize) ? kBufSize-1 : lx;
1253  xname[0] = 0; strncat(xname, out, ncopy);
1254 
1255  delete[] buff;
1256 
1257  if (ier || ncopy != lx) {
1258  ::Error("TSystem::ExpandFileName", "input: %s, output: %s", fname, xname);
1259  return kTRUE;
1260  }
1261 
1262  return kFALSE;
1263 }
1264 
1265 
1266 ////////////////////////////////////////////////////////////////////////////////
1267 /// Expand a pathname getting rid of special shell characters like ~.$, etc.
1268 /// For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
1269 /// environment variables in a pathname. If compatibility is not an issue
1270 /// you can use on Unix directly $XXX.
1271 
1273 {
1274  return kFALSE;
1275 }
1276 
1277 ////////////////////////////////////////////////////////////////////////////////
1278 /// Expand a pathname getting rid of special shell characters like ~.$, etc.
1279 /// For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
1280 /// environment variables in a pathname. If compatibility is not an issue
1281 /// you can use on Unix directly $XXX. The user must delete returned string.
1282 
1283 char *TSystem::ExpandPathName(const char *)
1284 {
1285  return nullptr;
1286 }
1287 
1288 ////////////////////////////////////////////////////////////////////////////////
1289 /// Returns FALSE if one can access a file using the specified access mode.
1290 /// The file name must not contain any special shell characters line ~ or $,
1291 /// in those cases first call ExpandPathName().
1292 /// Attention, bizarre convention of return value!!
1293 
1295 {
1296  return kFALSE;
1297 }
1298 
1299 ////////////////////////////////////////////////////////////////////////////////
1300 /// Returns TRUE if the url in 'path' points to the local file system.
1301 /// This is used to avoid going through the NIC card for local operations.
1302 
1303 Bool_t TSystem::IsPathLocal(const char *path)
1304 {
1305  Bool_t localPath = kTRUE;
1306 
1307  TUrl url(path);
1308  if (strlen(url.GetHost()) > 0) {
1309  // Check locality
1310  localPath = kFALSE;
1313  if (!strcmp(a.GetHostName(), b.GetHostName()) ||
1314  !strcmp(a.GetHostAddress(), b.GetHostAddress())) {
1315  // Host OK
1316  localPath = kTRUE;
1317  // Check the user if specified
1318  if (strlen(url.GetUser()) > 0) {
1320  if (u) {
1321  if (strcmp(u->fUser, url.GetUser()))
1322  // Requested a different user
1323  localPath = kFALSE;
1324  delete u;
1325  }
1326  }
1327  }
1328  }
1329  // Done
1330  return localPath;
1331 }
1332 
1333 ////////////////////////////////////////////////////////////////////////////////
1334 /// Copy a file. If overwrite is true and file already exists the
1335 /// file will be overwritten. Returns 0 when successful, -1 in case
1336 /// of file open failure, -2 in case the file already exists and overwrite
1337 /// was false and -3 in case of error during copy.
1338 
1339 int TSystem::CopyFile(const char *, const char *, Bool_t)
1340 {
1341  AbstractMethod("CopyFile");
1342  return -1;
1343 }
1344 
1345 ////////////////////////////////////////////////////////////////////////////////
1346 /// Rename a file.
1347 
1348 int TSystem::Rename(const char *, const char *)
1349 {
1350  AbstractMethod("Rename");
1351  return -1;
1352 }
1353 
1354 ////////////////////////////////////////////////////////////////////////////////
1355 /// Create a link from file1 to file2.
1356 
1357 int TSystem::Link(const char *, const char *)
1358 {
1359  AbstractMethod("Link");
1360  return -1;
1361 }
1362 
1363 ////////////////////////////////////////////////////////////////////////////////
1364 /// Create a symbolic link from file1 to file2.
1365 
1366 int TSystem::Symlink(const char *, const char *)
1367 {
1368  AbstractMethod("Symlink");
1369  return -1;
1370 }
1371 
1372 ////////////////////////////////////////////////////////////////////////////////
1373 /// Unlink, i.e. remove, a file.
1374 ///
1375 /// If the file is currently open by the current or another process, the behavior of this function is
1376 /// implementation-defined (in particular, POSIX systems unlink the file name, while Windows does not allow the
1377 /// file to be deleted and the operation is a no-op).
1378 
1379 int TSystem::Unlink(const char *)
1380 {
1381  AbstractMethod("Unlink");
1382  return -1;
1383 }
1384 
1385 ////////////////////////////////////////////////////////////////////////////////
1386 /// Get info about a file: id, size, flags, modification time.
1387 /// - Id is (statbuf.st_dev << 24) + statbuf.st_ino
1388 /// - Size is the file size
1389 /// - Flags is file type: 0 is regular file, bit 0 set executable,
1390 /// bit 1 set directory, bit 2 set special file
1391 /// (socket, fifo, pipe, etc.)
1392 /// Modtime is modification time.
1393 /// The function returns 0 in case of success and 1 if the file could
1394 /// not be stat'ed.
1395 
1396 int TSystem::GetPathInfo(const char *path, Long_t *id, Long_t *size,
1397  Long_t *flags, Long_t *modtime)
1398 {
1399  Long64_t lsize;
1400 
1401  int res = GetPathInfo(path, id, &lsize, flags, modtime);
1402 
1403  if (res == 0 && size) {
1404  if (sizeof(Long_t) == 4 && lsize > kMaxInt) {
1405  Error("GetPathInfo", "file %s > 2 GB, use GetPathInfo() with Long64_t size", path);
1406  *size = kMaxInt;
1407  } else {
1408  *size = (Long_t)lsize;
1409  }
1410  }
1411 
1412  return res;
1413 }
1414 
1415 ////////////////////////////////////////////////////////////////////////////////
1416 /// Get info about a file: id, size, flags, modification time.
1417 /// - Id is (statbuf.st_dev << 24) + statbuf.st_ino
1418 /// - Size is the file size
1419 /// - Flags is file type: 0 is regular file, bit 0 set executable,
1420 /// bit 1 set directory, bit 2 set special file
1421 /// (socket, fifo, pipe, etc.)
1422 /// Modtime is modification time.
1423 /// The function returns 0 in case of success and 1 if the file could
1424 /// not be stat'ed.
1425 
1426 int TSystem::GetPathInfo(const char *path, Long_t *id, Long64_t *size,
1427  Long_t *flags, Long_t *modtime)
1428 {
1429  FileStat_t buf;
1430 
1431  int res = GetPathInfo(path, buf);
1432 
1433  if (res == 0) {
1434  if (id)
1435  *id = (buf.fDev << 24) + buf.fIno;
1436  if (size)
1437  *size = buf.fSize;
1438  if (modtime)
1439  *modtime = buf.fMtime;
1440  if (flags) {
1441  *flags = 0;
1442  if (buf.fMode & (kS_IXUSR|kS_IXGRP|kS_IXOTH))
1443  *flags |= 1;
1444  if (R_ISDIR(buf.fMode))
1445  *flags |= 2;
1446  if (!R_ISREG(buf.fMode) && !R_ISDIR(buf.fMode))
1447  *flags |= 4;
1448  }
1449  }
1450 
1451  return res;
1452 }
1453 
1454 ////////////////////////////////////////////////////////////////////////////////
1455 /// Get info about a file. Info is returned in the form of a FileStat_t
1456 /// structure (see TSystem.h).
1457 /// The function returns 0 in case of success and 1 if the file could
1458 /// not be stat'ed.
1459 
1460 int TSystem::GetPathInfo(const char *, FileStat_t &)
1461 {
1462  AbstractMethod("GetPathInfo(const char *, FileStat_t&)");
1463  return 1;
1464 }
1465 
1466 ////////////////////////////////////////////////////////////////////////////////
1467 /// Get info about a file system: fs type, block size, number of blocks,
1468 /// number of free blocks.
1469 
1470 int TSystem::GetFsInfo(const char *, Long_t *, Long_t *, Long_t *, Long_t *)
1471 {
1472  AbstractMethod("GetFsInfo");
1473  return 1;
1474 }
1475 
1476 ////////////////////////////////////////////////////////////////////////////////
1477 /// Return a user configured or systemwide directory to create
1478 /// temporary files in.
1479 
1480 const char *TSystem::TempDirectory() const
1481 {
1482  AbstractMethod("TempDirectory");
1483  return nullptr;
1484 }
1485 
1486 ////////////////////////////////////////////////////////////////////////////////
1487 /// Create a secure temporary file by appending a unique
1488 /// 6 letter string to base. The file will be created in
1489 /// a standard (system) directory or in the directory
1490 /// provided in dir. The full filename is returned in base
1491 /// and a filepointer is returned for safely writing to the file
1492 /// (this avoids certain security problems). Returns 0 in case
1493 /// of error.
1494 
1495 FILE *TSystem::TempFileName(TString &, const char *)
1496 {
1497  AbstractMethod("TempFileName");
1498  return nullptr;
1499 }
1500 
1501 ////////////////////////////////////////////////////////////////////////////////
1502 /// Set the file permission bits. Returns -1 in case or error, 0 otherwise.
1503 
1504 int TSystem::Chmod(const char *, UInt_t)
1505 {
1506  AbstractMethod("Chmod");
1507  return -1;
1508 }
1509 
1510 ////////////////////////////////////////////////////////////////////////////////
1511 /// Set the process file creation mode mask.
1512 
1514 {
1515  AbstractMethod("Umask");
1516  return -1;
1517 }
1518 
1519 ////////////////////////////////////////////////////////////////////////////////
1520 /// Set the a files modification and access times. If actime = 0 it will be
1521 /// set to the modtime. Returns 0 on success and -1 in case of error.
1522 
1523 int TSystem::Utime(const char *, Long_t, Long_t)
1524 {
1525  AbstractMethod("Utime");
1526  return -1;
1527 }
1528 
1529 ////////////////////////////////////////////////////////////////////////////////
1530 /// Find location of file in a search path. Return value points to TString for
1531 /// compatibility with Which(const char *, const char *, EAccessMode).
1532 /// Returns 0 in case file is not found.
1533 
1534 const char *TSystem::FindFile(const char *, TString&, EAccessMode)
1535 {
1536  AbstractMethod("FindFile");
1537  return nullptr;
1538 }
1539 
1540 ////////////////////////////////////////////////////////////////////////////////
1541 /// Find location of file in a search path. User must delete returned string.
1542 /// Returns 0 in case file is not found.
1543 
1544 char *TSystem::Which(const char *search, const char *wfil, EAccessMode mode)
1545 {
1546  TString wfilString(wfil);
1547  FindFile(search, wfilString, mode);
1548  if (wfilString.IsNull())
1549  return nullptr;
1550  return StrDup(wfilString.Data());
1551 }
1552 
1553 //---- Users & Groups ----------------------------------------------------------
1554 
1555 ////////////////////////////////////////////////////////////////////////////////
1556 /// Returns the user's id. If user = 0, returns current user's id.
1557 
1558 Int_t TSystem::GetUid(const char * /*user*/)
1559 {
1560  AbstractMethod("GetUid");
1561  return 0;
1562 }
1563 
1564 ////////////////////////////////////////////////////////////////////////////////
1565 /// Returns the effective user id. The effective id corresponds to the
1566 /// set id bit on the file being executed.
1567 
1569 {
1570  AbstractMethod("GetEffectiveUid");
1571  return 0;
1572 }
1573 
1574 ////////////////////////////////////////////////////////////////////////////////
1575 /// Returns the group's id. If group = 0, returns current user's group.
1576 
1577 Int_t TSystem::GetGid(const char * /*group*/)
1578 {
1579  AbstractMethod("GetGid");
1580  return 0;
1581 }
1582 
1583 ////////////////////////////////////////////////////////////////////////////////
1584 /// Returns the effective group id. The effective group id corresponds
1585 /// to the set id bit on the file being executed.
1586 
1588 {
1589  AbstractMethod("GetEffectiveGid");
1590  return 0;
1591 }
1592 
1593 ////////////////////////////////////////////////////////////////////////////////
1594 /// Returns all user info in the UserGroup_t structure. The returned
1595 /// structure must be deleted by the user. In case of error 0 is returned.
1596 
1598 {
1599  AbstractMethod("GetUserInfo");
1600  return nullptr;
1601 }
1602 
1603 ////////////////////////////////////////////////////////////////////////////////
1604 /// Returns all user info in the UserGroup_t structure. If user = 0, returns
1605 /// current user's id info. The returned structure must be deleted by the
1606 /// user. In case of error 0 is returned.
1607 
1608 UserGroup_t *TSystem::GetUserInfo(const char * /*user*/)
1609 {
1610  AbstractMethod("GetUserInfo");
1611  return nullptr;
1612 }
1613 
1614 ////////////////////////////////////////////////////////////////////////////////
1615 /// Returns all group info in the UserGroup_t structure. The only active
1616 /// fields in the UserGroup_t structure for this call are:
1617 /// - fGid and fGroup
1618 /// The returned structure must be deleted by the user. In case of
1619 /// error 0 is returned.
1620 
1622 {
1623  AbstractMethod("GetGroupInfo");
1624  return nullptr;
1625 }
1626 
1627 ////////////////////////////////////////////////////////////////////////////////
1628 /// Returns all group info in the UserGroup_t structure. The only active
1629 /// fields in the UserGroup_t structure for this call are:
1630 /// - fGid and fGroup
1631 /// If group = 0, returns current user's group. The returned structure
1632 /// must be deleted by the user. In case of error 0 is returned.
1633 
1634 UserGroup_t *TSystem::GetGroupInfo(const char * /*group*/)
1635 {
1636  AbstractMethod("GetGroupInfo");
1637  return nullptr;
1638 }
1639 
1640 //---- environment manipulation ------------------------------------------------
1641 
1642 ////////////////////////////////////////////////////////////////////////////////
1643 /// Set environment variable.
1644 
1645 void TSystem::Setenv(const char *, const char *)
1646 {
1647  AbstractMethod("Setenv");
1648 }
1649 
1650 ////////////////////////////////////////////////////////////////////////////////
1651 /// Unset environment variable.
1652 
1653 void TSystem::Unsetenv(const char *name)
1654 {
1655  Setenv(name, "");
1656 }
1657 
1658 ////////////////////////////////////////////////////////////////////////////////
1659 /// Get environment variable.
1660 
1661 const char *TSystem::Getenv(const char *)
1662 {
1663  AbstractMethod("Getenv");
1664  return nullptr;
1665 }
1666 
1667 //---- System Logging ----------------------------------------------------------
1668 
1669 ////////////////////////////////////////////////////////////////////////////////
1670 /// Open connection to system log daemon. For the use of the options and
1671 /// facility see the Unix openlog man page.
1672 
1674 {
1675  AbstractMethod("Openlog");
1676 }
1677 
1678 ////////////////////////////////////////////////////////////////////////////////
1679 /// Send mess to syslog daemon. Level is the logging level and mess the
1680 /// message that will be written on the log.
1681 
1682 void TSystem::Syslog(ELogLevel, const char *)
1683 {
1684  AbstractMethod("Syslog");
1685 }
1686 
1687 ////////////////////////////////////////////////////////////////////////////////
1688 /// Close connection to system log daemon.
1689 
1691 {
1692  AbstractMethod("Closelog");
1693 }
1694 
1695 //---- Standard output redirection ---------------------------------------------
1696 
1697 ////////////////////////////////////////////////////////////////////////////////
1698 /// Redirect standard output (stdout, stderr) to the specified file.
1699 /// If the file argument is 0 the output is set again to stderr, stdout.
1700 /// The second argument specifies whether the output should be added to the
1701 /// file ("a", default) or the file be truncated before ("w").
1702 /// The implementations of this function save internally the current state into
1703 /// a static structure.
1704 ///
1705 /// The call can be made reentrant by specifying the opaque structure pointed
1706 /// by 'h', which is filled with the relevant information. The handle 'h'
1707 /// obtained on the first call must then be used in any subsequent call,
1708 /// included ShowOutput, to display the redirected output.
1709 /// Returns 0 on success, -1 in case of error.
1710 
1711 Int_t TSystem::RedirectOutput(const char *, const char *, RedirectHandle_t *)
1712 {
1713  AbstractMethod("RedirectOutput");
1714  return -1;
1715 }
1716 
1717 ////////////////////////////////////////////////////////////////////////////////
1718 /// Display the content associated with the redirection described by the
1719 /// opaque handle 'h'.
1720 
1722 {
1723  // Check input ...
1724  if (!h) {
1725  Error("ShowOutput", "handle not specified");
1726  return;
1727  }
1728 
1729  // ... and file access
1730  if (gSystem->AccessPathName(h->fFile, kReadPermission)) {
1731  Error("ShowOutput", "file '%s' cannot be read", h->fFile.Data());
1732  return;
1733  }
1734 
1735  // Open the file
1736  FILE *f = nullptr;
1737  if (!(f = fopen(h->fFile.Data(), "r"))) {
1738  Error("ShowOutput", "file '%s' cannot be open", h->fFile.Data());
1739  return;
1740  }
1741 
1742  // Determine the number of bytes to be read from the file.
1743  off_t ltot = lseek(fileno(f), (off_t) 0, SEEK_END);
1744  Int_t begin = (h->fReadOffSet > 0 && h->fReadOffSet < ltot) ? h->fReadOffSet : 0;
1745  lseek(fileno(f), (off_t) begin, SEEK_SET);
1746  Int_t left = ltot - begin;
1747 
1748  // Now readout from file
1749  const Int_t kMAXBUF = 16384;
1750  char buf[kMAXBUF];
1751  Int_t wanted = (left > kMAXBUF-1) ? kMAXBUF-1 : left;
1752  Int_t len;
1753  do {
1754  while ((len = read(fileno(f), buf, wanted)) < 0 &&
1755  TSystem::GetErrno() == EINTR)
1757 
1758  if (len < 0) {
1759  SysError("ShowOutput", "error reading log file");
1760  break;
1761  }
1762 
1763  // Null-terminate
1764  buf[len] = 0;
1765  fprintf(stderr,"%s", buf);
1766 
1767  // Update counters
1768  left -= len;
1769  wanted = (left > kMAXBUF) ? kMAXBUF : left;
1770 
1771  } while (len > 0 && left > 0);
1772 
1773  // Do not display twice the same thing
1774  h->fReadOffSet = ltot;
1775  fclose(f);
1776 }
1777 
1778 //---- Dynamic Loading ---------------------------------------------------------
1779 
1780 ////////////////////////////////////////////////////////////////////////////////
1781 /// Add a new directory to the dynamic path.
1782 
1783 void TSystem::AddDynamicPath(const char *)
1784 {
1785  AbstractMethod("AddDynamicPath");
1786 }
1787 
1788 ////////////////////////////////////////////////////////////////////////////////
1789 /// Return the dynamic path (used to find shared libraries).
1790 
1792 {
1793  AbstractMethod("GetDynamicPath");
1794  return nullptr;
1795 }
1796 
1797 ////////////////////////////////////////////////////////////////////////////////
1798 /// Set the dynamic path to a new value.
1799 /// If the value of 'path' is zero, the dynamic path is reset to its
1800 /// default value.
1801 
1802 void TSystem::SetDynamicPath(const char *)
1803 {
1804  AbstractMethod("SetDynamicPath");
1805 }
1806 
1807 
1808 ////////////////////////////////////////////////////////////////////////////////
1809 /// Figure out if left and right points to the same
1810 /// object in the file system.
1811 
1812 static bool R__MatchFilename(const char *left, const char *right)
1813 {
1814  if (left == right) return kTRUE;
1815 
1816  if (left==0 || right==0) return kFALSE;
1817 
1818  if ( (strcmp(right,left)==0) ) {
1819  return kTRUE;
1820  }
1821 
1822 #ifdef G__WIN32
1823 
1824  char leftname[_MAX_PATH];
1825  char rightname[_MAX_PATH];
1826  _fullpath( leftname, left, _MAX_PATH );
1827  _fullpath( rightname, right, _MAX_PATH );
1828  return ((stricmp(leftname, rightname)==0));
1829 #else
1830  struct stat rightBuf;
1831  struct stat leftBuf;
1832  return ( ( 0 == stat( left, & leftBuf ) )
1833  && ( 0 == stat( right, & rightBuf ) )
1834  && ( leftBuf.st_dev == rightBuf.st_dev ) // Files on same device
1835  && ( leftBuf.st_ino == rightBuf.st_ino ) // Files on same inode (but this is not unique on AFS so we need the next 2 test
1836  && ( leftBuf.st_size == rightBuf.st_size ) // Files of same size
1837  && ( leftBuf.st_mtime == rightBuf.st_mtime ) // Files modified at the same time
1838  );
1839 #endif
1840 }
1841 
1842 
1843 ////////////////////////////////////////////////////////////////////////////////
1844 /// Load a shared library. Returns 0 on successful loading, 1 in
1845 /// case lib was already loaded, -1 in case lib does not exist
1846 /// or in case of error and -2 in case of version mismatch.
1847 /// When entry is specified the loaded lib is
1848 /// searched for this entry point (return -1 when entry does not exist,
1849 /// 0 otherwise). When the system flag is kTRUE, the library is considered
1850 /// a permanent system library that should not be unloaded during the
1851 /// course of the session.
1852 
1853 int TSystem::Load(const char *module, const char *entry, Bool_t system)
1854 {
1855  // don't load libraries that have already been loaded
1856  TString libs( GetLibraries() );
1858 
1859  Ssiz_t idx = l.Last('.');
1860  if (idx != kNPOS) {
1861  l.Remove(idx+1);
1862  }
1863  for (idx = libs.Index(l); idx != kNPOS; idx = libs.Index(l,idx+1)) {
1864  // The libs contains the sub-string 'l', let's make sure it is
1865  // not just part of a larger name.
1866  if (idx == 0 || libs[idx-1] == '/' || libs[idx-1] == '\\') {
1867  Ssiz_t len = libs.Length();
1868  idx += l.Length();
1869  if (!l.EndsWith(".") && libs[idx]=='.')
1870  idx++;
1871  // Skip the soversion.
1872  while (idx < len && isdigit(libs[idx])) {
1873  ++idx;
1874  // No need to test for len here, at worse idx==len and lib[idx]=='\0'
1875  if (libs[idx] == '.') {
1876  ++idx;
1877  }
1878  }
1879  while (idx < len && libs[idx] != '.') {
1880  if (libs[idx] == ' ' || idx+1 == len) {
1881  return 1;
1882  }
1883  ++idx;
1884  }
1885  }
1886  }
1887  if (l[l.Length()-1] == '.') {
1888  l.Remove(l.Length()-1);
1889  }
1890  if (l.BeginsWith("lib")) {
1891  l.Replace(0, 3, "-l");
1892  for(idx = libs.Index(l); idx != kNPOS; idx = libs.Index(l,idx+1)) {
1893  if ((idx == 0 || libs[idx-1] == ' ') &&
1894  (libs[idx+l.Length()] == ' ' || libs[idx+l.Length()] == 0)) {
1895  return 1;
1896  }
1897  }
1898  }
1899 
1900  char *path = DynamicPathName(module);
1901 
1902  int ret = -1;
1903  if (path) {
1904  // load any dependent libraries
1905  TString deplibs = gInterpreter->GetSharedLibDeps(path);
1906  if (!deplibs.IsNull()) {
1907  TString delim(" ");
1908  TObjArray *tokens = deplibs.Tokenize(delim);
1909  for (Int_t i = tokens->GetEntriesFast()-1; i > 0; i--) {
1910  const char *deplib = ((TObjString*)tokens->At(i))->GetName();
1911  if (strcmp(module,deplib)==0) {
1912  continue;
1913  }
1914  if (gDebug > 0)
1915  Info("Load", "loading dependent library %s for library %s",
1916  deplib, ((TObjString*)tokens->At(0))->GetName());
1917  if ((ret = Load(deplib, "", system)) < 0) {
1918  delete tokens;
1919  delete [] path;
1920  return ret;
1921  }
1922  }
1923  delete tokens;
1924  }
1925  if (!system) {
1926  // Mark the library in $ROOTSYS/lib as system.
1927  TString dirname = GetDirName(path);
1928  system = R__MatchFilename(TROOT::GetLibDir(), dirname.Data());
1929 
1930  if (!system) {
1931  system = R__MatchFilename(TROOT::GetBinDir(), dirname.Data());
1932  }
1933  }
1934 
1937  gLibraryVersionMax *= 2;
1939  }
1940  ret = gInterpreter->Load(path, system);
1941  if (ret < 0) ret = -1;
1942  if (gDebug > 0)
1943  Info("Load", "loaded library %s, status %d", path, ret);
1944  if (ret == 0 && gLibraryVersion[gLibraryVersionIdx]) {
1946  Error("Load", "version mismatch, %s = %d, ROOT = %d",
1947  path, v, gROOT->GetVersionInt());
1948  ret = -2;
1950  }
1952  delete [] path;
1953  }
1954 
1955  if (!entry || !entry[0] || ret < 0) return ret;
1956 
1957  Func_t f = DynFindSymbol(module, entry);
1958  if (f) return 0;
1959  return -1;
1960 }
1961 
1962 ///////////////////////////////////////////////////////////////////////////////
1963 /// Load all libraries known to ROOT via the rootmap system.
1964 /// Returns the number of top level libraries successfully loaded.
1965 
1967 {
1968  UInt_t nlibs = 0;
1969 
1970  TEnv* mapfile = gInterpreter->GetMapfile();
1971  if (!mapfile || !mapfile->GetTable()) return 0;
1972 
1973  std::set<std::string> loadedlibs;
1974  std::set<std::string> failedlibs;
1975 
1976  TEnvRec* rec = 0;
1977  TIter iEnvRec(mapfile->GetTable());
1978  while ((rec = (TEnvRec*) iEnvRec())) {
1979  TString libs = rec->GetValue();
1980  TString lib;
1981  Ssiz_t pos = 0;
1982  while (libs.Tokenize(lib, pos)) {
1983  // check that none of the libs failed to load
1984  if (failedlibs.find(lib.Data()) != failedlibs.end()) {
1985  // don't load it or any of its dependencies
1986  libs = "";
1987  break;
1988  }
1989  }
1990  pos = 0;
1991  while (libs.Tokenize(lib, pos)) {
1992  // ignore libCore - it's already loaded
1993  if (lib.BeginsWith("libCore"))
1994  continue;
1995 
1996  if (loadedlibs.find(lib.Data()) == loadedlibs.end()) {
1997  // just load the first library - TSystem will do the rest.
1998  auto res = gSystem->Load(lib);
1999  if (res >=0) {
2000  if (res == 0) ++nlibs;
2001  loadedlibs.insert(lib.Data());
2002  } else {
2003  failedlibs.insert(lib.Data());
2004  }
2005  }
2006  }
2007  }
2008  return nlibs;
2009 }
2010 
2011 ////////////////////////////////////////////////////////////////////////////////
2012 /// Find a dynamic library called lib using the system search paths.
2013 /// Appends known extensions if needed. Returned string must be deleted
2014 /// by the user!
2015 
2016 char *TSystem::DynamicPathName(const char *lib, Bool_t quiet /*=kFALSE*/)
2017 {
2018  TString sLib(lib);
2019  if (FindDynamicLibrary(sLib, quiet))
2020  return StrDup(sLib);
2021  return nullptr;
2022 }
2023 
2024 ////////////////////////////////////////////////////////////////////////////////
2025 /// Find a dynamic library using the system search paths. lib will be updated
2026 /// to contain the absolute filename if found. Returns lib if found, or NULL
2027 /// if a library called lib was not found.
2028 /// This function does not open the library.
2029 
2031 {
2032  AbstractMethod("FindDynamicLibrary");
2033  return nullptr;
2034 }
2035 
2036 ////////////////////////////////////////////////////////////////////////////////
2037 /// Find specific entry point in specified library. Specify "*" for lib
2038 /// to search in all libraries.
2039 
2040 Func_t TSystem::DynFindSymbol(const char * /*lib*/, const char *entry)
2041 {
2042  return (Func_t) gInterpreter->FindSym(entry);
2043 }
2044 
2045 ////////////////////////////////////////////////////////////////////////////////
2046 /// Unload a shared library.
2047 
2048 void TSystem::Unload(const char *module)
2049 {
2050  char *path;
2051  if ((path = DynamicPathName(module))) {
2052  gInterpreter->UnloadFile(path);
2053  delete [] path;
2054  }
2055 }
2056 
2057 ////////////////////////////////////////////////////////////////////////////////
2058 /// List symbols in a shared library.
2059 
2060 void TSystem::ListSymbols(const char *, const char *)
2061 {
2062  AbstractMethod("ListSymbols");
2063 }
2064 
2065 ////////////////////////////////////////////////////////////////////////////////
2066 /// List all loaded shared libraries. Regexp is a wildcard expression,
2067 /// see TRegexp::MakeWildcard.
2068 
2069 void TSystem::ListLibraries(const char *regexp)
2070 {
2071  TString libs = GetLibraries(regexp);
2072  TRegexp separator("[^ \\t\\s]+");
2073  TString s;
2074  Ssiz_t start = 0, index = 0, end = 0;
2075  int i = 0;
2076 
2077  Printf(" ");
2078  Printf("Loaded shared libraries");
2079  Printf("=======================");
2080 
2081  while ((start < libs.Length()) && (index != kNPOS)) {
2082  index = libs.Index(separator, &end, start);
2083  if (index >= 0) {
2084  s = libs(index, end);
2085  if (s.BeginsWith("-")) {
2086  if (s.BeginsWith("-l")) {
2087  Printf("%s", s.Data());
2088  i++;
2089  }
2090  } else {
2091  Printf("%s", s.Data());
2092  i++;
2093  }
2094  }
2095  start += end+1;
2096  }
2097 
2098  Printf("-----------------------");
2099  Printf("%d libraries loaded", i);
2100  Printf("=======================");
2101 }
2102 
2103 ////////////////////////////////////////////////////////////////////////////////
2104 /// Return the thread local storage for the custom last error message
2105 
2107 {
2108  TTHREAD_TLS_DECL( TString, gLastErrorString);
2109  return gLastErrorString;
2110 }
2111 
2112 ////////////////////////////////////////////////////////////////////////////////
2113 /// Return the thread local storage for the custom last error message
2114 
2116 {
2117  return const_cast<TSystem*>(this)->GetLastErrorString();
2118 }
2119 
2120 ////////////////////////////////////////////////////////////////////////////////
2121 /// Get list of shared libraries loaded at the start of the executable.
2122 /// Returns 0 in case list cannot be obtained or in case of error.
2123 
2125 {
2126  return nullptr;
2127 }
2128 
2129 ////////////////////////////////////////////////////////////////////////////////
2130 /// Return a space separated list of loaded shared libraries.
2131 /// Regexp is a wildcard expression, see TRegexp::MakeWildcard.
2132 /// This list is of a format suitable for a linker, i.e it may contain
2133 /// -Lpathname and/or -lNameOfLib.
2134 /// Option can be any of:
2135 /// - S: shared libraries loaded at the start of the executable, because
2136 /// they were specified on the link line.
2137 /// - D: shared libraries dynamically loaded after the start of the program.
2138 /// - L: this option is ignored, and available for backward compatibility.
2139 
2140 const char *TSystem::GetLibraries(const char *regexp, const char *options,
2141  Bool_t isRegexp)
2142 {
2143  fListLibs.Clear();
2144 
2145  TString libs;
2146  TString opt(options);
2147  Bool_t so2dylib = (opt.First('L') != kNPOS);
2148  if (so2dylib)
2149  opt.ReplaceAll("L", "");
2150 
2151  if (opt.IsNull() || opt.First('D') != kNPOS)
2152  libs += gInterpreter->GetSharedLibs();
2153 
2154  // Cint currently register all libraries that
2155  // are loaded and have a dictionary in them, this
2156  // includes all the libraries that are included
2157  // in the list of (hard) linked libraries.
2158 
2159  TString slinked;
2160  const char *linked;
2161  if ((linked = GetLinkedLibraries())) {
2162  if (fLinkedLibs != LINKEDLIBS) {
2163  // This is not the default value, we need to keep the custom part.
2164  TString custom = fLinkedLibs;
2165  custom.ReplaceAll(LINKEDLIBS,linked);
2166  if (custom == fLinkedLibs) {
2167  // no replacement done, let's append linked
2168  slinked.Append(linked);
2169  slinked.Append(" ");
2170  }
2171  slinked.Append(custom);
2172  } else {
2173  slinked.Append(linked);
2174  }
2175  } else {
2176  slinked.Append(fLinkedLibs);
2177  }
2178 
2179  if (opt.IsNull() || opt.First('S') != kNPOS) {
2180  // We are done, the statically linked libraries are already included.
2181  if (libs.Length() == 0) {
2182  libs = slinked;
2183  } else {
2184  // We need to add the missing linked library
2185 
2186  static TString lastLinked;
2187  static TString lastAddMissing;
2188  if ( lastLinked != slinked ) {
2189  // Recalculate only if there was a change.
2190  static TRegexp separator("[^ \\t\\s]+");
2191  lastLinked = slinked;
2192  lastAddMissing.Clear();
2193 
2194  Ssiz_t start, index, end;
2195  start = index = end = 0;
2196 
2197  while ((start < slinked.Length()) && (index != kNPOS)) {
2198  index = slinked.Index(separator,&end,start);
2199  if (index >= 0) {
2200  TString sub = slinked(index,end);
2201  if (sub[0]=='-' && sub[1]=='L') {
2202  lastAddMissing.Prepend(" ");
2203  lastAddMissing.Prepend(sub);
2204  } else {
2205  if (libs.Index(sub) == kNPOS) {
2206  lastAddMissing.Prepend(" ");
2207  lastAddMissing.Prepend(sub);
2208  }
2209  }
2210  }
2211  start += end+1;
2212  }
2213  }
2214  libs.Prepend(lastAddMissing);
2215  }
2216  } else if (libs.Length() != 0) {
2217  // Let remove the statically linked library
2218  // from the list.
2219  static TRegexp separator("[^ \\t\\s]+");
2220  Ssiz_t start, index, end;
2221  start = index = end = 0;
2222 
2223  while ((start < slinked.Length()) && (index != kNPOS)) {
2224  index = slinked.Index(separator,&end,start);
2225  if (index >= 0) {
2226  TString sub = slinked(index,end);
2227  if (sub[0]!='-' && sub[1]!='L') {
2228  libs.ReplaceAll(sub,"");
2229  }
2230  }
2231  start += end+1;
2232  }
2233  libs = libs.Strip(TString::kBoth);
2234  }
2235 
2236  // Select according to regexp
2237  if (regexp && *regexp) {
2238  static TRegexp separator("[^ \\t\\s]+");
2239  TRegexp user_re(regexp, kTRUE);
2240  TString s;
2241  Ssiz_t start, index, end;
2242  start = index = end = 0;
2243 
2244  while ((start < libs.Length()) && (index != kNPOS)) {
2245  index = libs.Index(separator,&end,start);
2246  if (index >= 0) {
2247  s = libs(index,end);
2248  if ((isRegexp && s.Index(user_re) != kNPOS) ||
2249  (!isRegexp && s.Index(regexp) != kNPOS)) {
2250  if (!fListLibs.IsNull())
2251  fListLibs.Append(" ");
2252  fListLibs.Append(s);
2253  }
2254  }
2255  start += end+1;
2256  }
2257  } else
2258  fListLibs = libs;
2259 
2260 #if defined(R__MACOSX)
2261 // We need to remove the libraries that are dynamically loaded and not linked
2262 {
2263  TString libs2 = fListLibs;
2264  TString maclibs;
2265 
2266  static TRegexp separator("[^ \\t\\s]+");
2267  static TRegexp dynload("/lib-dynload/");
2268 
2269  Ssiz_t start, index, end;
2270  start = index = end = 0;
2271 
2272  while ((start < libs2.Length()) && (index != kNPOS)) {
2273  index = libs2.Index(separator, &end, start);
2274  if (index >= 0) {
2275  TString s = libs2(index, end);
2276  if (s.Index(dynload) == kNPOS) {
2277  if (!maclibs.IsNull()) maclibs.Append(" ");
2278  maclibs.Append(s);
2279  }
2280  }
2281  start += end+1;
2282  }
2283  fListLibs = maclibs;
2284 }
2285 #endif
2286 
2287  return fListLibs.Data();
2288 }
2289 
2290 //---- RPC ---------------------------------------------------------------------
2291 
2292 ////////////////////////////////////////////////////////////////////////////////
2293 /// Get Internet Protocol (IP) address of host.
2294 
2296 {
2297  AbstractMethod("GetHostByName");
2298  return TInetAddress();
2299 }
2300 
2301 ////////////////////////////////////////////////////////////////////////////////
2302 /// Get Internet Protocol (IP) address of remote host and port #.
2303 
2305 {
2306  AbstractMethod("GetPeerName");
2307  return TInetAddress();
2308 }
2309 
2310 ////////////////////////////////////////////////////////////////////////////////
2311 /// Get Internet Protocol (IP) address of host and port #.
2312 
2314 {
2315  AbstractMethod("GetSockName");
2316  return TInetAddress();
2317 }
2318 
2319 ////////////////////////////////////////////////////////////////////////////////
2320 /// Get port # of internet service.
2321 
2322 int TSystem::GetServiceByName(const char *)
2323 {
2324  AbstractMethod("GetServiceByName");
2325  return -1;
2326 }
2327 
2328 ////////////////////////////////////////////////////////////////////////////////
2329 /// Get name of internet service.
2330 
2332 {
2333  AbstractMethod("GetServiceByPort");
2334  return nullptr;
2335 }
2336 
2337 ////////////////////////////////////////////////////////////////////////////////
2338 /// Open a connection to another host.
2339 
2340 int TSystem::OpenConnection(const char *, int, int, const char *)
2341 {
2342  AbstractMethod("OpenConnection");
2343  return -1;
2344 }
2345 
2346 ////////////////////////////////////////////////////////////////////////////////
2347 /// Announce TCP/IP service.
2348 
2350 {
2351  AbstractMethod("AnnounceTcpService");
2352  return -1;
2353 }
2354 
2355 ////////////////////////////////////////////////////////////////////////////////
2356 /// Announce UDP service.
2357 
2359 {
2360  AbstractMethod("AnnounceUdpService");
2361  return -1;
2362 }
2363 
2364 ////////////////////////////////////////////////////////////////////////////////
2365 /// Announce unix domain service.
2366 
2368 {
2369  AbstractMethod("AnnounceUnixService");
2370  return -1;
2371 }
2372 
2373 ////////////////////////////////////////////////////////////////////////////////
2374 /// Announce unix domain service.
2375 
2376 int TSystem::AnnounceUnixService(const char *, int)
2377 {
2378  AbstractMethod("AnnounceUnixService");
2379  return -1;
2380 }
2381 
2382 ////////////////////////////////////////////////////////////////////////////////
2383 /// Accept a connection.
2384 
2386 {
2387  AbstractMethod("AcceptConnection");
2388  return -1;
2389 }
2390 
2391 ////////////////////////////////////////////////////////////////////////////////
2392 /// Close socket connection.
2393 
2395 {
2396  AbstractMethod("CloseConnection");
2397 }
2398 
2399 ////////////////////////////////////////////////////////////////////////////////
2400 /// Receive exactly length bytes into buffer. Use opt to receive out-of-band
2401 /// data or to have a peek at what is in the buffer (see TSocket).
2402 
2403 int TSystem::RecvRaw(int, void *, int, int)
2404 {
2405  AbstractMethod("RecvRaw");
2406  return -1;
2407 }
2408 
2409 ////////////////////////////////////////////////////////////////////////////////
2410 /// Send exactly length bytes from buffer. Use opt to send out-of-band
2411 /// data (see TSocket).
2412 
2413 int TSystem::SendRaw(int, const void *, int, int)
2414 {
2415  AbstractMethod("SendRaw");
2416  return -1;
2417 }
2418 
2419 ////////////////////////////////////////////////////////////////////////////////
2420 /// Receive a buffer headed by a length indicator.
2421 
2422 int TSystem::RecvBuf(int, void *, int)
2423 {
2424  AbstractMethod("RecvBuf");
2425  return -1;
2426 }
2427 
2428 ////////////////////////////////////////////////////////////////////////////////
2429 /// Send a buffer headed by a length indicator.
2430 
2431 int TSystem::SendBuf(int, const void *, int)
2432 {
2433  AbstractMethod("SendBuf");
2434  return -1;
2435 }
2436 
2437 ////////////////////////////////////////////////////////////////////////////////
2438 /// Set socket option.
2439 
2440 int TSystem::SetSockOpt(int, int, int)
2441 {
2442  AbstractMethod("SetSockOpt");
2443  return -1;
2444 }
2445 
2446 ////////////////////////////////////////////////////////////////////////////////
2447 /// Get socket option.
2448 
2449 int TSystem::GetSockOpt(int, int, int*)
2450 {
2451  AbstractMethod("GetSockOpt");
2452  return -1;
2453 }
2454 
2455 //---- System, CPU and Memory info ---------------------------------------------
2456 
2457 ////////////////////////////////////////////////////////////////////////////////
2458 /// Returns static system info, like OS type, CPU type, number of CPUs
2459 /// RAM size, etc into the SysInfo_t structure. Returns -1 in case of error,
2460 /// 0 otherwise.
2461 
2463 {
2464  AbstractMethod("GetSysInfo");
2465  return -1;
2466 }
2467 
2468 ////////////////////////////////////////////////////////////////////////////////
2469 /// Returns cpu load average and load info into the CpuInfo_t structure.
2470 /// Returns -1 in case of error, 0 otherwise. Use sampleTime to set the
2471 /// interval over which the CPU load will be measured, in ms (default 1000).
2472 
2474 {
2475  AbstractMethod("GetCpuInfo");
2476  return -1;
2477 }
2478 
2479 ////////////////////////////////////////////////////////////////////////////////
2480 /// Returns ram and swap memory usage info into the MemInfo_t structure.
2481 /// Returns -1 in case of error, 0 otherwise.
2482 
2484 {
2485  AbstractMethod("GetMemInfo");
2486  return -1;
2487 }
2488 
2489 ////////////////////////////////////////////////////////////////////////////////
2490 /// Returns cpu and memory used by this process into the ProcInfo_t structure.
2491 /// Returns -1 in case of error, 0 otherwise.
2492 
2494 {
2495  AbstractMethod("GetProcInfo");
2496  return -1;
2497 }
2498 
2499 //---- Script Compiler ---------------------------------------------------------
2500 
2501 void AssignAndDelete(TString& target, char *tobedeleted)
2502 {
2503  // Assign the char* value to the TString and then delete it.
2504 
2505  target = tobedeleted;
2506  delete [] tobedeleted;
2507 }
2508 
2509 #ifdef WIN32
2510 
2511 static TString R__Exec(const char *cmd)
2512 {
2513  // Execute a command and return the stdout in a string.
2514 
2515  FILE * f = gSystem->OpenPipe(cmd,"r");
2516  if (!f) {
2517  return "";
2518  }
2519  TString result;
2520 
2521  char x;
2522  while ((x = fgetc(f))!=EOF ) {
2523  if (x=='\n' || x=='\r') break;
2524  result += x;
2525  }
2526 
2527  fclose(f);
2528  return result;
2529 }
2530 
2531 static void R__FixLink(TString &cmd)
2532 {
2533  // Replace the call to 'link' by a full path name call based on where cl.exe is.
2534  // This prevents us from using inadvertently the link.exe provided by cygwin.
2535 
2536  // check if link is the microsoft one...
2537  TString res = R__Exec("link 2>&1");
2538  if (res.Length()) {
2539  if (res.Contains("Microsoft (R) Incremental Linker"))
2540  return;
2541  }
2542  // else check availability of cygpath...
2543  res = R__Exec("cygpath . 2>&1");
2544  if (res.Length()) {
2545  if (res != ".")
2546  return;
2547  }
2548 
2549  res = R__Exec("which cl.exe 2>&1|grep cl|sed 's,cl\\.exe$,link\\.exe,' 2>&1");
2550  if (res.Length()) {
2551  res = R__Exec(Form("cygpath -w '%s' 2>&1",res.Data()));
2552  if (res.Length()) {
2553  cmd.ReplaceAll(" link ",Form(" \"%s\" ",res.Data()));
2554  }
2555  }
2556 }
2557 #endif
2558 
2559 #if defined(__CYGWIN__)
2560 static void R__AddPath(TString &target, const TString &path) {
2561  if (path.Length() > 2 && path[1]==':') {
2562  target += TString::Format("/cygdrive/%c",path[0]) + path(2,path.Length()-2);
2563  } else {
2564  target += path;
2565  }
2566 }
2567 #else
2568 static void R__AddPath(TString &target, const TString &path) {
2569  target += path;
2570 }
2571 #endif
2572 
2573 static void R__WriteDependencyFile(const TString & build_loc, const TString &depfilename, const TString &filename, const TString &library, const TString &libname,
2574  const TString &extension, const char *version_var_prefix, const TString &includes, const TString &defines, const TString &incPath)
2575 {
2576  // Generate the dependency via standard output, not searching the
2577  // standard include directories,
2578 
2579 #ifndef WIN32
2580  const char * stderrfile = "/dev/null";
2581 #else
2582  TString stderrfile;
2583  AssignAndDelete( stderrfile, gSystem->ConcatFileName(build_loc,"stderr.tmp") );
2584 #endif
2585  TString bakdepfilename = depfilename + ".bak";
2586 
2587 #ifdef WIN32
2588  TString touch = "echo # > "; touch += "\"" + depfilename + "\"";
2589 #else
2590  TString touch = "echo > "; touch += "\"" + depfilename + "\"";
2591 #endif
2592  TString builddep = "rmkdepend";
2594  builddep += " \"-f";
2595  builddep += depfilename;
2596  builddep += "\" -o_" + extension + "." + gSystem->GetSoExt() + " ";
2597  if (build_loc.BeginsWith(gSystem->WorkingDirectory())) {
2598  Int_t len = strlen(gSystem->WorkingDirectory());
2599  if ( build_loc.Length() > (len+1) ) {
2600  builddep += " \"-p";
2601  if (build_loc[len] == '/' || build_loc[len+1] != '\\' ) {
2602  // Since the path is now ran through TSystem::ExpandPathName the single \ is also possible.
2603  R__AddPath(builddep, build_loc.Data() + len + 1 );
2604  } else {
2605  // Case of dir\\name
2606  R__AddPath(builddep, build_loc.Data() + len + 2 );
2607  }
2608  builddep += "/\" ";
2609  }
2610  } else {
2611  builddep += " \"-p";
2612  R__AddPath(builddep, build_loc);
2613  builddep += "/\" ";
2614  }
2615  builddep += " -Y -- ";
2616  TString rootsysInclude = TROOT::GetIncludeDir();
2617  builddep += " \"-I"+rootsysInclude+"\" "; // cflags
2618  builddep += includes;
2619  builddep += defines;
2620  builddep += " -- \"";
2621  builddep += filename;
2622  builddep += "\" ";
2623  TString targetname;
2624  if (library.BeginsWith(gSystem->WorkingDirectory())) {
2625  Int_t len = strlen(gSystem->WorkingDirectory());
2626  if ( library.Length() > (len+1) ) {
2627  if (library[len] == '/' || library[len+1] != '\\' ) {
2628  targetname = library.Data() + len + 1;
2629  } else {
2630  targetname = library.Data() + len + 2;
2631  }
2632  } else {
2633  targetname = library;
2634  }
2635  } else {
2636  targetname = library;
2637  }
2638  builddep += " \"";
2639  builddep += "-t";
2640  R__AddPath(builddep, targetname);
2641  builddep += "\" > ";
2642  builddep += stderrfile;
2643  builddep += " 2>&1 ";
2644 
2645  TString adddictdep = "echo ";
2646  R__AddPath(adddictdep,targetname);
2647  adddictdep += ": ";
2648 #if defined(R__HAS_CLING_DICTVERSION)
2649  {
2650  char *clingdictversion = gSystem->Which(incPath,"clingdictversion.h");
2651  if (clingdictversion) {
2652  R__AddPath(adddictdep,clingdictversion);
2653  adddictdep += " ";
2654  delete [] clingdictversion;
2655  } else {
2656  R__AddPath(adddictdep,rootsysInclude+"/clingdictversion.h ");
2657  }
2658  }
2659 #endif
2660  {
2661  const char *dictHeaders[] = { "RVersion.h", "RConfig.h", "TClass.h",
2662  "TDictAttributeMap.h","TInterpreter.h","TROOT.h","TBuffer.h",
2663  "TMemberInspector.h","TError.h","RtypesImp.h","TIsAProxy.h",
2664  "TFileMergeInfo.h","TCollectionProxyInfo.h"};
2665 
2666  for (unsigned int h=0; h < sizeof(dictHeaders)/sizeof(dictHeaders[0]); ++h)
2667  {
2668  char *rootVersion = gSystem->Which(incPath,dictHeaders[h]);
2669  if (rootVersion) {
2670  R__AddPath(adddictdep,rootVersion);
2671  delete [] rootVersion;
2672  } else {
2673  R__AddPath(adddictdep,rootsysInclude + "/" + dictHeaders[h]);
2674  }
2675  adddictdep += " ";
2676  }
2677  }
2678  {
2679  // Add dependency on rootcling.
2680  char *rootCling = gSystem->Which(gSystem->Getenv("PATH"),"rootcling");
2681  if (rootCling) {
2682  R__AddPath(adddictdep,rootCling);
2683  adddictdep += " ";
2684  delete [] rootCling;
2685  }
2686  }
2687  adddictdep += " >> \""+depfilename+"\"";
2688 
2689  TString addversiondep( "echo ");
2690  addversiondep += libname + version_var_prefix + " \"" + ROOT_RELEASE + "\" >> \""+depfilename+"\"";
2691 
2692  if (gDebug > 4) {
2693  ::Info("ACLiC", "%s", touch.Data());
2694  ::Info("ACLiC", "%s", builddep.Data());
2695  ::Info("ACLiC", "%s", adddictdep.Data());
2696  }
2697 
2698  Int_t depbuilt = !gSystem->Exec(touch);
2699  if (depbuilt) depbuilt = !gSystem->Exec(builddep);
2700  if (depbuilt) depbuilt = !gSystem->Exec(adddictdep);
2701  if (depbuilt) depbuilt = !gSystem->Exec(addversiondep);
2702 
2703  if (!depbuilt) {
2704  ::Warning("ACLiC","Failed to generate the dependency file for %s",
2705  library.Data());
2706  } else {
2707 #ifdef WIN32
2708  gSystem->Unlink(stderrfile);
2709 #endif
2710  gSystem->Unlink(bakdepfilename);
2711  }
2712 }
2713 
2714 ////////////////////////////////////////////////////////////////////////////////
2715 /// This method compiles and loads a shared library containing
2716 /// the code from the file "filename".
2717 ///
2718 /// The return value is true (1) in case of success and false (0)
2719 /// in case of error.
2720 ///
2721 /// The possible options are:
2722 /// - k : keep the shared library after the session end.
2723 /// - f : force recompilation.
2724 /// - g : compile with debug symbol
2725 /// - O : optimized the code
2726 /// - c : compile only, do not attempt to load the library.
2727 /// - s : silence all informational output
2728 /// - v : output all information output
2729 /// - d : debug ACLiC, keep all the output files.
2730 /// - - : if buildir is set, use a flat structure (see buildir below)
2731 ///
2732 /// If library_specified is specified, CompileMacro generates the file
2733 /// "library_specified".soext where soext is the shared library extension for
2734 /// the current platform.
2735 ///
2736 /// If build_dir is specified, it is used as an alternative 'root' for the
2737 /// generation of the shared library. The library is stored in a sub-directories
2738 /// of 'build_dir' including the full pathname of the script unless a flat
2739 /// directory structure is requested ('-' option). With the '-' option the libraries
2740 /// are created directly in the directory 'build_dir'; in particular this means that
2741 /// 2 scripts with the same name in different source directory will over-write each
2742 /// other's library.
2743 /// See also TSystem::SetBuildDir.
2744 ///
2745 /// If dirmode is not zero and we need to create the target directory, the
2746 /// file mode bit will be change to 'dirmode' using chmod.
2747 ///
2748 /// If library_specified is not specified, CompileMacro generate a default name
2749 /// for library by taking the name of the file "filename" but replacing the
2750 /// dot before the extension by an underscore and by adding the shared
2751 /// library extension for the current platform.
2752 /// For example on most platform, hsimple.cxx will generate hsimple_cxx.so
2753 ///
2754 /// It uses the directive fMakeSharedLibs to create a shared library.
2755 /// If loading the shared library fails, it tries to output a list of missing
2756 /// symbols by creating an executable (on some platforms like OSF, this does
2757 /// not HAVE to be an executable) containing the script. It uses the
2758 /// directive fMakeExe to do so.
2759 /// For both directives, before passing them to TSystem::Exec, it expands the
2760 /// variables $SourceFiles, $SharedLib, $LibName, $IncludePath, $LinkedLibs,
2761 /// $DepLibs, $ExeName and $ObjectFiles. See SetMakeSharedLib() for more
2762 /// information on those variables.
2763 ///
2764 /// This method is used to implement the following feature:
2765 ///
2766 /// Synopsis:
2767 ///
2768 /// The purpose of this addition is to allow the user to use an external
2769 /// compiler to create a shared library from its C++ macro (scripts).
2770 /// Currently in order to execute a script, a user has to type at the root
2771 /// prompt
2772 /// ~~~ {.cpp}
2773 /// .X myfunc.C(arg1,arg2)
2774 /// ~~~
2775 /// We allow them to type:
2776 /// ~~~ {.cpp}
2777 /// .X myfunc.C++(arg1,arg2)
2778 /// ~~~
2779 /// or
2780 /// ~~~ {.cpp}
2781 /// .X myfunc.C+(arg1,arg2)
2782 /// ~~~
2783 /// In which case an external compiler will be called to create a shared
2784 /// library. This shared library will then be loaded and the function
2785 /// myfunc will be called with the two arguments. With '++' the shared library
2786 /// is always recompiled. With '+' the shared library is recompiled only
2787 /// if it does not exist yet or the macro file is newer than the shared
2788 /// library.
2789 ///
2790 /// Of course the + and ++ notation is supported in similar way for .x and .L.
2791 ///
2792 /// Through the function TSystem::SetMakeSharedLib(), the user will be able to
2793 /// indicate, with shell commands, how to build a shared library (a good
2794 /// default will be provided). The most common change, namely where to find
2795 /// header files, will be available through the function
2796 /// TSystem::SetIncludePath().
2797 /// A good default will be provided so that a typical user session should be at
2798 /// most:
2799 /// ~~~ {.cpp}
2800 /// root[1] gSystem->SetIncludePath("-I$ROOTSYS/include
2801 /// -I$HOME/mypackage/include");
2802 /// root[2] .x myfunc.C++(10,20);
2803 /// ~~~
2804 /// The user may sometimes try to compile a script before it has loaded all the
2805 /// needed shared libraries. In this case we want to be helpful and output a
2806 /// list of the unresolved symbols. So if the loading of the created shared
2807 /// library fails, we will try to build a executable that contains the
2808 /// script. The linker should then output a list of missing symbols.
2809 ///
2810 /// To support this we provide a TSystem::SetMakeExe() function, that sets the
2811 /// directive telling how to create an executable. The loader will need
2812 /// to be informed of all the libraries available. The information about
2813 /// the libraries that has been loaded by .L and TSystem::Load() is accessible
2814 /// to the script compiler. However, the information about
2815 /// the libraries that have been selected at link time by the application
2816 /// builder (like the root libraries for root.exe) are not available and need
2817 /// to be explicitly listed in fLinkedLibs (either by default or by a call to
2818 /// TSystem::SetLinkedLibs()).
2819 ///
2820 /// To simplify customization we could also add to the .rootrc support for the
2821 /// variables
2822 /// ~~~ {.cpp}
2823 /// Unix.*.Root.IncludePath: -I$ROOTSYS/include
2824 /// WinNT.*.Root.IncludePath: -I%ROOTSYS%/include
2825 ///
2826 /// Unix.*.Root.LinkedLibs: -L$ROOTSYS/lib -lBase ....
2827 /// WinNT.*.Root.LinkedLibs: %ROOTSYS%/lib/*.lib msvcrt.lib ....
2828 /// ~~~
2829 /// And also support for MakeSharedLibs() and MakeExe().
2830 ///
2831 /// (the ... have to be replaced by the actual values and are here only to
2832 /// shorten this comment).
2833 
2834 int TSystem::CompileMacro(const char *filename, Option_t *opt,
2835  const char *library_specified,
2836  const char *build_dir,
2837  UInt_t dirmode)
2838 {
2839  static const char *version_var_prefix = "__ROOTBUILDVERSION=";
2840 
2841  // ======= Analyze the options
2842  Bool_t keep = kFALSE;
2843  Bool_t recompile = kFALSE;
2844  int mode = fAclicMode;
2845  Bool_t loadLib = kTRUE;
2846  Bool_t withInfo = kTRUE;
2847  Bool_t verbose = kFALSE;
2848  Bool_t internalDebug = kFALSE;
2849  if (opt) {
2850  keep = (strchr(opt,'k')!=0);
2851  recompile = (strchr(opt,'f')!=0);
2852  if (strchr(opt,'O')!=0) {
2853  mode |= kOpt;
2854  }
2855  if (strchr(opt,'g')!=0) {
2856  mode |= kDebug;
2857  }
2858  if (strchr(opt,'c')!=0) {
2859  loadLib = kFALSE;
2860  }
2861  withInfo = strchr(opt, 's') == nullptr;
2862  verbose = strchr(opt, 'v') != nullptr;
2863  internalDebug = strchr(opt, 'd') != nullptr;
2864  }
2865  if (mode==kDefault) {
2866  TString rootbuild = ROOTBUILD;
2867  if (rootbuild.Index("debug",0,TString::kIgnoreCase)==kNPOS) {
2868  mode = kOpt;
2869  } else {
2870  mode = kDebug;
2871  }
2872  }
2873  UInt_t verboseLevel = verbose ? 7 : gDebug;
2874  Bool_t flatBuildDir = (fAclicProperties & kFlatBuildDir) || (opt && strchr(opt,'-')!=0);
2875 
2876  // if non-zero, build_loc indicates where to build the shared library.
2877  TString build_loc = ExpandFileName(GetBuildDir());
2878  if (build_dir && strlen(build_dir)) build_loc = build_dir;
2879  if (build_loc == ".") {
2880  build_loc = WorkingDirectory();
2881  } else if (build_loc.Length() && (!IsAbsoluteFileName(build_loc)) ) {
2882  AssignAndDelete( build_loc , ConcatFileName( WorkingDirectory(), build_loc ) );
2883  }
2884 
2885  // Get the include directory list in the dir1:dir2:dir3 format
2886  // [Used for generating the .d file and to look for header files for
2887  // the linkdef file]
2888  TString incPath = GetIncludePath(); // of the form -Idir1 -Idir2 -Idir3
2889  incPath.Append(":").Prepend(" ");
2890  if (gEnv) {
2891  TString fromConfig = gEnv->GetValue("ACLiC.IncludePaths","");
2892  incPath.Append(fromConfig);
2893  }
2894  incPath.ReplaceAll(" -I",":"); // of form :dir1 :dir2:dir3
2895  auto posISysRoot = incPath.Index(" -isysroot \"");
2896  if (posISysRoot != kNPOS) {
2897  auto posISysRootEnd = incPath.Index('"', posISysRoot + 12);
2898  if (posISysRootEnd != kNPOS) {
2899  // NOTE: should probably just skip isysroot for dependency analysis.
2900  // (And will, in the future - once we rely on compiler-generated .d files.)
2901  incPath.Insert(posISysRootEnd - 1, "/usr/include/");
2902  incPath.Replace(posISysRoot, 12, ":\"");
2903  }
2904  }
2905  while ( incPath.Index(" :") != -1 ) {
2906  incPath.ReplaceAll(" :",":");
2907  }
2908  incPath.Prepend(":.:");
2909  incPath.Prepend(WorkingDirectory());
2910 
2911  // ======= Get the right file names for the dictionary and the shared library
2912  TString expFileName(filename);
2913  ExpandPathName( expFileName );
2914  expFileName = gSystem->UnixPathName(expFileName);
2915  TString library = expFileName;
2916  if (! IsAbsoluteFileName(library) )
2917  {
2918  const char *whichlibrary = Which(incPath,library);
2919  if (whichlibrary) {
2920  library = whichlibrary;
2921  delete [] whichlibrary;
2922  } else {
2923  ::Error("ACLiC","The file %s can not be found in the include path: %s",filename,incPath.Data());
2924  return kFALSE;
2925  }
2926  } else {
2927  if (gSystem->AccessPathName(library)) {
2928  ::Error("ACLiC","The file %s can not be found.",filename);
2929  return kFALSE;
2930  }
2931  }
2932  { // Remove multiple '/' characters, rootcling treats them as comments.
2933  Ssiz_t pos = 0;
2934  while ((pos = library.Index("//", 2, pos, TString::kExact)) != kNPOS) {
2935  library.Remove(pos, 1);
2936  }
2937  }
2938  library = gSystem->UnixPathName(library);
2939  TString filename_fullpath = library;
2940 
2941  TString file_dirname = GetDirName( filename_fullpath );
2942  // For some probably good reason, DirName on Windows returns the 'name' of
2943  // the directory, omitting the drive letter (even if there was one). In
2944  // consequence the result is not usable as a 'root directory', we need to
2945  // add the drive letter if there was one..
2946  if (library.Length()>1 && isalpha(library[0]) && library[1]==':') {
2947  file_dirname.Prepend(library(0,2));
2948  }
2949  TString file_location( file_dirname ); // Location of the script.
2950  incPath.Prepend( file_location + ":" );
2951 
2952  Ssiz_t dot_pos = library.Last('.');
2953  TString extension, libname_noext = library;
2954  if (dot_pos >= 0) {
2955  libname_noext.Remove(dot_pos);
2956  extension = library(dot_pos+1, library.Length()-dot_pos-1);
2957  }
2958 
2959  // Extension of shared library is platform dependent!!
2960  TString suffix = TString("_") + extension + "." + fSoExt;
2961  if (dot_pos >= 0)
2962  library.Replace( dot_pos, library.Length()-dot_pos, suffix);
2963  else
2964  library.Append(suffix);
2965 
2966  TString libname ( BaseName( libname_noext ) );
2967  libname.Append("_").Append(extension);
2968 
2969  if (library_specified && strlen(library_specified) ) {
2970  // Use the specified name instead of the default
2971  libname = BaseName( library_specified );
2972  library = library_specified;
2973  ExpandPathName( library );
2974  if (! IsAbsoluteFileName(library) ) {
2975  AssignAndDelete( library , ConcatFileName( WorkingDirectory(), library ) );
2976  }
2977  library = TString(library) + "." + fSoExt;
2978  }
2979  library = gSystem->UnixPathName(library);
2980 
2981  TString libname_ext ( libname );
2982  libname_ext += "." + fSoExt;
2983 
2984  TString lib_dirname = GetDirName( library );
2985  // For some probably good reason, DirName on Windows returns the 'name' of
2986  // the directory, omitting the drive letter (even if there was one). In
2987  // consequence the result is not useable as a 'root directory', we need to
2988  // add the drive letter if there was one..
2989  if (library.Length()>1 && isalpha(library[0]) && library[1]==':') {
2990  lib_dirname.Prepend(library(0,2));
2991  }
2992  // Strip potential, somewhat redundant '/.' from the pathname ...
2993  if ( strncmp( &(lib_dirname[lib_dirname.Length()-2]), "/.", 2) == 0 ) {
2994  lib_dirname.Remove(lib_dirname.Length()-2);
2995  }
2996  if ( strncmp( &(lib_dirname[lib_dirname.Length()-2]), "\\.", 2) == 0 ) {
2997  lib_dirname.Remove(lib_dirname.Length()-2);
2998  }
2999  TString lib_location( lib_dirname );
3000  Bool_t mkdirFailed = kFALSE;
3001 
3002  if (build_loc.Length()==0) {
3003  build_loc = lib_location;
3004  } else {
3005  // Removes an existing disk specification from the names
3006  TRegexp disk_finder ("[A-z]:");
3007  Int_t pos = library.Index( disk_finder );
3008  if (pos==0) library.Remove(pos,3);
3009  pos = lib_location.Index( disk_finder );
3010  if (pos==0) lib_location.Remove(pos,3);
3011 
3012  if (flatBuildDir) {
3013  AssignAndDelete( library, ConcatFileName( build_loc, libname_ext) );
3014  } else {
3015  AssignAndDelete( library, ConcatFileName( build_loc, library) );
3016  }
3017 
3018  Bool_t canWriteBuild_loc = !gSystem->AccessPathName(build_loc,kWritePermission);
3019  TString build_loc_store( build_loc );
3020  if (!flatBuildDir) {
3021  AssignAndDelete( build_loc, ConcatFileName( build_loc, lib_location) );
3022  }
3023 
3024  if (gSystem->AccessPathName(build_loc,kFileExists)) {
3025  mkdirFailed = (0 != mkdir(build_loc, true));
3026  if (mkdirFailed && !canWriteBuild_loc) {
3027  // The mkdir failed __and__ we can not write to the target directory,
3028  // let make sure the error message will be about the target directory
3029  build_loc = build_loc_store;
3030  mkdirFailed = kFALSE;
3031  } else if (!mkdirFailed && dirmode!=0) {
3032  Chmod(build_loc,dirmode);
3033  }
3034  }
3035  }
3036  library = gSystem->UnixPathName(library);
3037 
3038  // ======= Check if the library need to loaded or compiled
3039  if (!gInterpreter->IsLibraryLoaded(library) && gInterpreter->IsLoaded(expFileName)) {
3040  // the script has already been loaded in interpreted mode
3041  // Let's warn the user and unload it.
3042 
3043  if (withInfo) {
3044  ::Info("ACLiC","script has already been loaded in interpreted mode");
3045  ::Info("ACLiC","unloading %s and compiling it", filename);
3046  }
3047 
3048  if ( gInterpreter->UnloadFile( expFileName ) != 0 ) {
3049  // We can not unload it.
3050  return kFALSE;
3051  }
3052  }
3053 
3054  // Calculate the -I lines
3055  TString includes = GetIncludePath();
3056  includes.Prepend(' ');
3057 
3058  {
3059  // I need to replace the -Isomerelativepath by -I../ (or -I..\ on NT)
3060  TRegexp rel_inc(" -I[^\"/\\$%-][^:-]+");
3061  Int_t len,pos;
3062  pos = rel_inc.Index(includes,&len);
3063  while( len != 0 ) {
3064  TString sub = includes(pos,len);
3065  sub.Remove(0,3); // Remove ' -I'
3067  sub.Prepend(" -I\"");
3068  sub.Chop(); // Remove trailing space (i.e between the -Is ...
3069  sub.Append("\" ");
3070  includes.Replace(pos,len,sub);
3071  pos = rel_inc.Index(includes,&len);
3072  }
3073  }
3074  {
3075  // I need to replace the -I"somerelativepath" by -I"$cwd/ (or -I"$cwd\ on NT)
3076  TRegexp rel_inc(" -I\"[^/\\$%-][^:-]+");
3077  Int_t len,pos;
3078  pos = rel_inc.Index(includes,&len);
3079  while( len != 0 ) {
3080  TString sub = includes(pos,len);
3081  sub.Remove(0,4); // Remove ' -I"'
3083  sub.Prepend(" -I\"");
3084  includes.Replace(pos,len,sub);
3085  pos = rel_inc.Index(includes,&len);
3086  }
3087  }
3088  //includes += " -I\"" + build_loc;
3089  //includes += "\" -I\"";
3090  //includes += WorkingDirectory();
3091 // if (includes[includes.Length()-1] == '\\') {
3092 // // The current directory is (most likely) the root of a windows drive and
3093 // // has a trailing \ which would espace the quote if left by itself.
3094 // includes += '\\';
3095 // }
3096 // includes += "\"";
3097  if (gEnv) {
3098  TString fromConfig = gEnv->GetValue("ACLiC.IncludePaths","");
3099  includes.Append(" ").Append(fromConfig).Append(" ");
3100  }
3101 
3102  // Extract the -D for the dependency generation.
3103  TString defines = " ";
3104  {
3105  TString cmd = GetMakeSharedLib();
3106  TRegexp rel_def("-D[^\\s\\t\\n\\r]*");
3107  Int_t len,pos;
3108  pos = rel_def.Index(cmd,&len);
3109  while( len != 0 ) {
3110  defines += cmd(pos,len);
3111  defines += " ";
3112  pos = rel_def.Index(cmd,&len,pos+1);
3113  }
3114 
3115  }
3116 
3117  TString emergency_loc;
3118  {
3120  if (ug) {
3121  AssignAndDelete( emergency_loc, ConcatFileName( TempDirectory(), ug->fUser ) );
3122  delete ug;
3123  } else {
3124  emergency_loc = TempDirectory();
3125  }
3126  }
3127 
3128  Bool_t canWrite = !gSystem->AccessPathName(build_loc,kWritePermission);
3129 
3130  Bool_t modified = kFALSE;
3131 
3132  // Generate the dependency filename
3133  TString depdir = build_loc;
3134  TString depfilename;
3135  AssignAndDelete( depfilename, ConcatFileName(depdir, BaseName(libname_noext)) );
3136  depfilename += "_" + extension + ".d";
3137 
3138  if ( !recompile ) {
3139 
3140  Long_t lib_time, file_time;
3141 
3142  if ((gSystem->GetPathInfo( library, 0, (Long_t*)0, 0, &lib_time ) != 0) ||
3143  (gSystem->GetPathInfo( expFileName, 0, (Long_t*)0, 0, &file_time ) == 0 &&
3144  (lib_time < file_time))) {
3145 
3146  // the library does not exist or is older than the script.
3147  recompile = kTRUE;
3148  modified = kTRUE;
3149 
3150  } else {
3151 
3152  if ( gSystem->GetPathInfo( depfilename, 0,(Long_t*) 0, 0, &file_time ) != 0 ) {
3153  if (!canWrite) {
3154  depdir = emergency_loc;
3155  AssignAndDelete( depfilename, ConcatFileName(depdir, BaseName(libname_noext)) );
3156  depfilename += "_" + extension + ".d";
3157  }
3158  R__WriteDependencyFile(build_loc, depfilename, filename_fullpath, library, libname, extension, version_var_prefix, includes, defines, incPath);
3159  }
3160  }
3161 
3162  if (!modified) {
3163 
3164  // We need to check the dependencies
3165  FILE * depfile = fopen(depfilename.Data(),"r");
3166  if (depfile==0) {
3167  // there is no accessible dependency file, let's assume the library has been
3168  // modified
3169  modified = kTRUE;
3170  recompile = kTRUE;
3171 
3172  } else {
3173 
3174  TString version_var = libname + version_var_prefix;
3175 
3176  Int_t sz = 256;
3177  char *line = new char[sz];
3178  line[0] = 0;
3179 
3180  int c;
3181  Int_t current = 0;
3182  Int_t nested = 0;
3183  Bool_t hasversion = false;
3184 
3185  while ((c = fgetc(depfile)) != EOF) {
3186  if (c=='#') {
3187  // skip comment
3188  while ((c = fgetc(depfile)) != EOF) {
3189  if (c=='\n') {
3190  break;
3191  }
3192  }
3193  continue;
3194  }
3195  if (current && line[current-1]=='=' && strncmp(version_var.Data(),line,current)==0) {
3196 
3197  // The next word will be the version number.
3198  hasversion = kTRUE;
3199  line[0] = 0;
3200  current = 0;
3201  } else if (isspace(c) && !nested) {
3202  if (current) {
3203  if (line[current-1]!=':') {
3204  // ignore target
3205  line[current] = 0;
3206 
3207  Long_t filetime;
3208  if (hasversion) {
3209  modified |= strcmp(ROOT_RELEASE,line)!=0;
3210  hasversion = kFALSE;
3211  } else if ( gSystem->GetPathInfo( line, 0, (Long_t*)0, 0, &filetime ) == 0 ) {
3212  modified |= ( lib_time <= filetime );
3213  }
3214  }
3215  }
3216  current = 0;
3217  line[0] = 0;
3218  } else {
3219  if (current==sz-1) {
3220  sz = 2*sz;
3221  char *newline = new char[sz];
3222  memcpy(newline,line, current);
3223  delete [] line;
3224  line = newline;
3225  }
3226  if (c=='"') nested = !nested;
3227  else {
3228  line[current] = c;
3229  current++;
3230  }
3231  }
3232  }
3233  delete [] line;
3234  fclose(depfile);
3235  recompile = modified;
3236 
3237  }
3238 
3239  }
3240  }
3241 
3242  if ( gInterpreter->IsLibraryLoaded(library)
3243  || strlen(GetLibraries(library,"D",kFALSE)) != 0 ) {
3244  // The library has already been built and loaded.
3245 
3246  Bool_t reload = kFALSE;
3247  TNamed *libinfo = (TNamed*)fCompiled->FindObject(library);
3248  if (libinfo) {
3249  Long_t load_time = libinfo->GetUniqueID();
3250  Long_t lib_time;
3251  if ( gSystem->GetPathInfo( library, 0, (Long_t*)0, 0, &lib_time ) == 0
3252  && (lib_time>load_time)) {
3253  reload = kTRUE;
3254  }
3255  }
3256 
3257  if ( !recompile && reload ) {
3258 
3259  if (withInfo) {
3260  ::Info("ACLiC","%s has been modified and will be reloaded",
3261  libname.Data());
3262  }
3263  if ( gInterpreter->UnloadFile( library.Data() ) != 0 ) {
3264  // The library is being used. We can not unload it.
3265  return kFALSE;
3266  }
3267  if (libinfo) {
3268  fCompiled->Remove(libinfo);
3269  delete libinfo;
3270  libinfo = 0;
3271  }
3272  TNamed *k = new TNamed(library,library);
3273  Long_t lib_time;
3274  gSystem->GetPathInfo( library, 0, (Long_t*)0, 0, &lib_time );
3275  k->SetUniqueID(lib_time);
3276  if (!keep) k->SetBit(kMustCleanup);
3277  fCompiled->Add(k);
3278 
3279  return !gSystem->Load(library);
3280  }
3281 
3282  if (withInfo) {
3283  ::Info("ACLiC","%s script has already been compiled and loaded",
3284  modified ? "modified" : "unmodified");
3285  }
3286 
3287  if ( !recompile ) {
3288  return kTRUE;
3289  } else {
3290  if (withInfo) {
3291  ::Info("ACLiC","it will be regenerated and reloaded!");
3292  }
3293  if ( gInterpreter->UnloadFile( library.Data() ) != 0 ) {
3294  // The library is being used. We can not unload it.
3295  return kFALSE;
3296  }
3297  if (libinfo) {
3298  fCompiled->Remove(libinfo);
3299  delete libinfo;
3300  libinfo = 0;
3301  }
3302  Unlink(library);
3303  }
3304 
3305  }
3306 
3307  TString libmapfilename;
3308  AssignAndDelete( libmapfilename, ConcatFileName( build_loc, libname ) );
3309  libmapfilename += ".rootmap";
3310 #if (defined(R__MACOSX) && !defined(MAC_OS_X_VERSION_10_5)) || defined(R__WIN32)
3311  Bool_t produceRootmap = kTRUE;
3312 #else
3313  Bool_t produceRootmap = kFALSE;
3314 #endif
3315  Bool_t linkDepLibraries = !produceRootmap;
3316  if (gEnv) {
3317 #if (defined(R__MACOSX) && !defined(MAC_OS_X_VERSION_10_5))
3318  Int_t linkLibs = gEnv->GetValue("ACLiC.LinkLibs",2);
3319 #elif defined(R__WIN32)
3320  Int_t linkLibs = gEnv->GetValue("ACLiC.LinkLibs",3);
3321 #else
3322  Int_t linkLibs = gEnv->GetValue("ACLiC.LinkLibs",1);
3323 #endif
3324  produceRootmap = linkLibs & 0x2;
3325  linkDepLibraries = linkLibs & 0x1;
3326  }
3327 
3328  // FIXME: Triggers clang false positive warning -Wunused-lambda-capture.
3329  /*constexpr const*/ bool useCxxModules =
3330 #ifdef R__USE_CXXMODULES
3331  true;
3332 #else
3333  false;
3334 #endif
3335 
3336  // FIXME: Switch to generic polymorphic when we make c++14 default.
3337  auto ForeachSharedLibDep = [](const char *lib, std::function<bool(const char *)> f) {
3338  using namespace std;
3339  string deps = gInterpreter->GetSharedLibDeps(lib, /*tryDyld*/ true);
3340  istringstream iss(deps);
3341  vector<string> libs{istream_iterator<std::string>{iss}, istream_iterator<string>{}};
3342  // Skip the first element: it is a relative path to `lib`.
3343  for (auto I = libs.begin() + 1, E = libs.end(); I != E; ++I)
3344  if (!f(I->c_str()))
3345  break;
3346  };
3347  auto LoadLibrary = [useCxxModules, produceRootmap, ForeachSharedLibDep](const TString &lib) {
3348  // We have no rootmap files or modules to construct `-l` flags enabling
3349  // explicit linking. We have to resolve the dependencies by ourselves
3350  // taking the job of the dyld.
3351  // FIXME: This is a rare case where we have rootcling running with
3352  // modules disabled. Remove this code once we fully switch to modules,
3353  // or implement a special flag in rootcling which selective enables
3354  // modules for dependent libraries and does not produce a module for
3355  // the ACLiC library.
3356  if (useCxxModules && !produceRootmap) {
3357  std::function<bool(const char *)> LoadLibF = [](const char *dep) {
3358  return gInterpreter->Load(dep, /*skipReload*/ true) >= 0;
3359  };
3360  ForeachSharedLibDep(lib, LoadLibF);
3361  }
3362  return !gSystem->Load(lib);
3363  };
3364 
3365  if (!recompile) {
3366  // The library already exist, let's just load it.
3367  if (loadLib) {
3368  TNamed *k = new TNamed(library,library);
3369  Long_t lib_time;
3370  gSystem->GetPathInfo( library, 0, (Long_t*)0, 0, &lib_time );
3371  k->SetUniqueID(lib_time);
3372  if (!keep) k->SetBit(kMustCleanup);
3373  fCompiled->Add(k);
3374 
3375  gInterpreter->GetSharedLibDeps(library);
3376 
3377  return LoadLibrary(library);
3378  }
3379  else return kTRUE;
3380  }
3381 
3382  if (!canWrite && recompile) {
3383 
3384  if (mkdirFailed) {
3385  ::Warning("ACLiC","Could not create the directory: %s",
3386  build_loc.Data());
3387  } else {
3388  ::Warning("ACLiC","%s is not writable!",
3389  build_loc.Data());
3390  }
3391  if (emergency_loc == build_dir ) {
3392  ::Error("ACLiC","%s is the last resort location (i.e. temp location)",build_loc.Data());
3393  return kFALSE;
3394  }
3395  ::Warning("ACLiC","Output will be written to %s",
3396  emergency_loc.Data());
3397  return CompileMacro(expFileName, opt, library_specified, emergency_loc, dirmode);
3398  }
3399 
3400  if (withInfo) {
3401  Info("ACLiC","creating shared library %s",library.Data());
3402  }
3403 
3404  R__WriteDependencyFile(build_loc, depfilename, filename_fullpath, library, libname, extension, version_var_prefix, includes, defines, incPath);
3405 
3406  // ======= Select the dictionary name
3407  TString dict = libname + "_ACLiC_dict";
3408 
3409  // the file name end up in the file produced
3410  // by rootcling as a variable name so all character need to be valid!
3411  static const int maxforbidden = 27;
3412  static const char *forbidden_chars[maxforbidden] =
3413  { "+","-","*","/","&","%","|","^",">","<",
3414  "=","~",".","(",")","[","]","!",",","$",
3415  " ",":","'","#","@","\\","\"" };
3416  for( int ic = 0; ic < maxforbidden; ic++ ) {
3417  dict.ReplaceAll( forbidden_chars[ic],"_" );
3418  }
3419  if ( dict.Last('.')!=dict.Length()-1 ) dict.Append(".");
3420  AssignAndDelete( dict, ConcatFileName( build_loc, dict ) );
3421  TString dicth = dict;
3422  TString dictObj = dict;
3423  dict += "cxx"; //no need to keep the extension of the original file, any extension will do
3424  dicth += "h";
3425  dictObj += fObjExt;
3426 
3427  // ======= Generate a linkdef file
3428 
3429  TString linkdef;
3430  AssignAndDelete( linkdef, ConcatFileName( build_loc, libname ) );
3431  linkdef += "_ACLiC_linkdef.h";
3432  std::ofstream linkdefFile( linkdef, std::ios::out );
3433  linkdefFile << "// File Automatically generated by the ROOT Script Compiler "
3434  << std::endl;
3435  linkdefFile << std::endl;
3436  linkdefFile << "#ifdef __CINT__" << std::endl;
3437  linkdefFile << std::endl;
3438  linkdefFile << "#pragma link C++ nestedclasses;" << std::endl;
3439  linkdefFile << "#pragma link C++ nestedtypedefs;" << std::endl;
3440  linkdefFile << std::endl;
3441 
3442  // We want to look for a header file that has the same name as the macro
3443 
3444  const char * extensions[] = { ".h", ".hh", ".hpp", ".hxx", ".hPP", ".hXX" };
3445 
3446  int i;
3447  for (i = 0; i < 6; i++ ) {
3448  char * name;
3449  TString extra_linkdef = BaseName( libname_noext );
3450  extra_linkdef.Append(GetLinkdefSuffix());
3451  extra_linkdef.Append(extensions[i]);
3452  name = Which(incPath,extra_linkdef);
3453  if (name) {
3454  if (verboseLevel>4 && withInfo) {
3455  Info("ACLiC","including extra linkdef file: %s",name);
3456  }
3457  linkdefFile << "#include \"" << name << "\"" << std::endl;
3458  delete [] name;
3459  }
3460  }
3461 
3462  if (verboseLevel>5 && withInfo) {
3463  Info("ACLiC","looking for header in: %s",incPath.Data());
3464  }
3465  for (i = 0; i < 6; i++ ) {
3466  char * name;
3467  TString lookup = BaseName( libname_noext );
3468  lookup.Append(extensions[i]);
3469  name = Which(incPath,lookup);
3470  if (name) {
3471  linkdefFile << "#pragma link C++ defined_in "<<gSystem->UnixPathName(name)<<";"<< std::endl;
3472  delete [] name;
3473  }
3474  }
3475  linkdefFile << "#pragma link C++ defined_in \""<<filename_fullpath << "\";" << std::endl;
3476  linkdefFile << std::endl;
3477  linkdefFile << "#endif" << std::endl;
3478  linkdefFile.close();
3479  // ======= Generate the list of rootmap files to be looked at
3480 
3481  TString mapfile;
3482  AssignAndDelete( mapfile, ConcatFileName( build_loc, libname ) );
3483  mapfile += "_ACLiC_map";
3484  TString mapfilein = mapfile + ".in";
3485  TString mapfileout = mapfile + ".out";
3486 
3487  Bool_t needLoadMap = kFALSE;
3488  if (!useCxxModules) {
3489  if (gInterpreter->GetSharedLibDeps(library) != nullptr) {
3490  gInterpreter->UnloadLibraryMap(libname);
3491  needLoadMap = kTRUE;
3492  }
3493  }
3494 
3495  std::ofstream mapfileStream( mapfilein, std::ios::out );
3496  {
3497  TString name = ".rootmap";
3498  TString sname = "system.rootmap";
3499  TString file;
3501  if (gSystem->AccessPathName(file)) {
3502  // for backward compatibility check also $ROOTSYS/system<name> if
3503  // $ROOTSYS/etc/system<name> does not exist
3505  if (gSystem->AccessPathName(file)) {
3506  // for backward compatibility check also $ROOTSYS/<name> if
3507  // $ROOTSYS/system<name> does not exist
3509  }
3510  }
3511  mapfileStream << file << std::endl;
3513  mapfileStream << file << std::endl;
3514  mapfileStream << name << std::endl;
3515  if (gInterpreter->GetRootMapFiles()) {
3516  for (i = 0; i < gInterpreter->GetRootMapFiles()->GetEntriesFast(); i++) {
3517  mapfileStream << ((TNamed*)gInterpreter->GetRootMapFiles()->At(i))->GetTitle() << std::endl;
3518  }
3519  }
3520  }
3521  mapfileStream.close();
3522 
3523  // ======= Generate the rootcling command line
3524  TString rcling = "rootcling";
3525  PrependPathName(TROOT::GetBinDir(), rcling);
3526  rcling += " -v0 \"--lib-list-prefix=";
3527  rcling += mapfile;
3528  rcling += "\" -f \"";
3529  rcling.Append(dict).Append("\" ");
3530 
3531  if (produceRootmap && !useCxxModules) {
3532  rcling += " -rml " + libname + " -rmf \"" + libmapfilename + "\" ";
3533  rcling.Append("-DR__ACLIC_ROOTMAP ");
3534  }
3535  rcling.Append(GetIncludePath()).Append(" -D__ACLIC__ ");
3536  if (gEnv) {
3537  TString fromConfig = gEnv->GetValue("ACLiC.IncludePaths","");
3538  rcling.Append(fromConfig);
3539  TString extraFlags = gEnv->GetValue("ACLiC.ExtraRootclingFlags","");
3540  if (!extraFlags.IsNull()) {
3541  extraFlags.Prepend(" ");
3542  extraFlags.Append(" ");
3543  rcling.Append(extraFlags);
3544  }
3545  }
3546 
3547  // Create a modulemap
3548  // FIXME: Merge the modulemap generation from cmake and here in rootcling.
3549  if (useCxxModules && produceRootmap) {
3550  rcling += " -cxxmodule ";
3551  // TString moduleMapFileName = file_dirname + "/" + libname + ".modulemap";
3552  TString moduleName = libname + "_ACLiC_dict";
3553  if (moduleName.BeginsWith("lib"))
3554  moduleName = moduleName.Remove(0, 3);
3555  TString moduleMapName = moduleName + ".modulemap";
3556  TString moduleMapFullPath = build_loc + "/" + moduleMapName;
3557  // A modulemap may exist from previous runs, overwrite it.
3558  if (verboseLevel > 3 && !AccessPathName(moduleMapFullPath))
3559  ::Info("ACLiC", "File %s already exists!", moduleMapFullPath.Data());
3560 
3561  std::string curDir = ROOT::FoundationUtils::GetCurrentDir();
3562  std::string relative_path = ROOT::FoundationUtils::MakePathRelative(filename_fullpath.Data(), curDir);
3563  std::ofstream moduleMapFile(moduleMapFullPath, std::ios::out);
3564  moduleMapFile << "module \"" << moduleName << "\" {" << std::endl;
3565  moduleMapFile << " header \"" << relative_path << "\"" << std::endl;
3566  moduleMapFile << " export *" << std::endl;
3567  moduleMapFile << " link \"" << libname_ext << "\"" << std::endl;
3568  moduleMapFile << "}" << std::endl;
3569  moduleMapFile.close();
3570  gInterpreter->RegisterPrebuiltModulePath(build_loc.Data(), moduleMapName.Data());
3571  rcling.Append(" \"-moduleMapFile=" + moduleMapFullPath + "\" ");
3572  }
3573 
3574  rcling.Append(" \"").Append(filename_fullpath).Append("\" ");
3575  rcling.Append("\"").Append(linkdef).Append("\"");
3576 
3577  // ======= Run rootcling
3578  if (withInfo) {
3579  if (verboseLevel>3) {
3580  ::Info("ACLiC","creating the dictionary files");
3581  if (verboseLevel>4) ::Info("ACLiC", "%s", rcling.Data());
3582  }
3583  }
3584 
3585  ///\returns true on success.
3586  auto ExecAndReport = [](TString cmd) -> bool {
3587  Int_t result = gSystem->Exec(cmd);
3588  if (result) {
3589  if (result == 139)
3590  ::Error("ACLiC", "Executing '%s' failed with a core dump!", cmd.Data());
3591  else
3592  ::Error("ACLiC", "Executing '%s' failed!", cmd.Data());
3593  }
3594  return !result;
3595  };
3596 
3597  Bool_t result = ExecAndReport(rcling);
3598  TString depLibraries;
3599 
3600  // ======= Load the library the script might depend on
3601  if (result) {
3602  TString linkedlibs = GetLibraries("", "S");
3603  TString libtoload;
3604  TString all_libtoload;
3605  std::ifstream liblist(mapfileout);
3606 
3607  while ( liblist >> libtoload ) {
3608  // Load the needed library except for the library we are currently building!
3609  if (libtoload == "#") {
3610  // The comment terminates the list of libraries.
3611  std::string toskipcomment;
3612  std::getline(liblist,toskipcomment);
3613  break;
3614  }
3615  if (libtoload != library && libtoload != libname && libtoload != libname_ext) {
3616  if (produceRootmap) {
3617  if (loadLib || linkDepLibraries /* For GetLibraries to Work */) {
3618  result = gROOT->LoadClass("", libtoload) >= 0;
3619  if (!result) {
3620  // We failed to load one of the dependency.
3621  break;
3622  }
3623  }
3624  if (!linkedlibs.Contains(libtoload)) {
3625  all_libtoload.Append(" ").Append(libtoload);
3626  depLibraries.Append(" ");
3627  depLibraries.Append(GetLibraries(libtoload,"DSL",kFALSE));
3628  depLibraries = depLibraries.Strip(); // Remove any trailing spaces.
3629  }
3630  } else {
3631  gROOT->LoadClass("", libtoload);
3632  }
3633  }
3634  unsigned char c = liblist.peek();
3635  if (c=='\n' || c=='\r') {
3636  // Consume the character
3637  liblist.get();
3638  break;
3639  }
3640  }
3641 
3642 // depLibraries = all_libtoload;
3643 // depLibraries.ReplaceAll(" lib"," -l");
3644 // depLibraries.ReplaceAll(TString::Format(".%s",fSoExt.Data()),"");
3645  }
3646 
3647  // ======= Calculate the libraries for linking:
3648  TString linkLibraries;
3649  /*
3650  this is intentionally disabled until it can become useful
3651  if (gEnv) {
3652  linkLibraries = gEnv->GetValue("ACLiC.Libraries","");
3653  linkLibraries.Prepend(" ");
3654  }
3655  */
3656  TString linkLibrariesNoQuotes(GetLibraries("","SDL"));
3657  // We need to enclose the single paths in quotes to account for paths with spaces
3658  TString librariesWithQuotes;
3659  TString singleLibrary;
3660  Bool_t collectingSingleLibraryNameTokens = kFALSE;
3661  for (auto tokenObj : *linkLibrariesNoQuotes.Tokenize(" ")) {
3662  singleLibrary = ((TObjString*)tokenObj)->GetString();
3663  if (singleLibrary[0]=='-' || !AccessPathName(singleLibrary)) {
3664  if (collectingSingleLibraryNameTokens) {
3665  librariesWithQuotes.Chop();
3666  librariesWithQuotes += "\" \"" + singleLibrary + "\"";
3667  collectingSingleLibraryNameTokens = kFALSE;
3668  } else {
3669  librariesWithQuotes += " \"" + singleLibrary + "\"";
3670  }
3671  } else {
3672  if (collectingSingleLibraryNameTokens) {
3673  librariesWithQuotes += singleLibrary + " ";
3674  } else {
3675  collectingSingleLibraryNameTokens = kTRUE;
3676  librariesWithQuotes += " \"" + singleLibrary + " ";
3677  }
3678  }
3679  }
3680 
3681 #ifdef _MSC_VER
3682  linkLibraries.Prepend(linkLibrariesNoQuotes);
3683 #else
3684  linkLibraries.Prepend(librariesWithQuotes);
3685 #endif
3686 
3687  // ======= Generate the build command lines
3688  TString cmd = fMakeSharedLib;
3689  // we do not add filename because it is already included via the dictionary(in dicth) !
3690  // dict.Append(" ").Append(filename);
3691  cmd.ReplaceAll("$SourceFiles","-D__ACLIC__ \"$SourceFiles\"");
3692  cmd.ReplaceAll("$SourceFiles",dict);
3693  cmd.ReplaceAll("$ObjectFiles","\"$ObjectFiles\"");
3694  cmd.ReplaceAll("$ObjectFiles",dictObj);
3695  cmd.ReplaceAll("$IncludePath",includes);
3696  cmd.ReplaceAll("$SharedLib","\"$SharedLib\"");
3697  cmd.ReplaceAll("$SharedLib",library);
3698  if (linkDepLibraries) {
3699  if (produceRootmap) {
3700  cmd.ReplaceAll("$DepLibs",depLibraries);
3701  } else {
3702  cmd.ReplaceAll("$DepLibs",linkLibraries);
3703  }
3704  }
3705  cmd.ReplaceAll("$LinkedLibs",linkLibraries);
3706  cmd.ReplaceAll("$LibName",libname);
3707  cmd.ReplaceAll("\"$BuildDir","$BuildDir");
3708  cmd.ReplaceAll("$BuildDir","\"$BuildDir\"");
3709  cmd.ReplaceAll("$BuildDir",build_loc);
3710  TString optdebFlags;
3711  if (mode & kDebug)
3712  optdebFlags = fFlagsDebug + " ";
3713  if (mode & kOpt)
3714  optdebFlags += fFlagsOpt;
3715  cmd.ReplaceAll("$Opt", optdebFlags);
3716 #ifdef WIN32
3717  R__FixLink(cmd);
3718  cmd.ReplaceAll("-std=", "-std:");
3719 #endif
3720 
3721  TString testcmd = fMakeExe;
3722  TString fakeMain;
3723  AssignAndDelete( fakeMain, ConcatFileName( build_loc, libname ) );
3724  fakeMain += "_ACLiC_main";
3725  fakeMain += extension;
3726  std::ofstream fakeMainFile( fakeMain, std::ios::out );
3727  fakeMainFile << "// File Automatically generated by the ROOT Script Compiler "
3728  << std::endl;
3729  fakeMainFile << "int main(char*argc,char**argvv) {};" << std::endl;
3730  fakeMainFile.close();
3731  // We could append this fake main routine to the compilation line.
3732  // But in this case compiler may output the name of the dictionary file
3733  // and of the fakeMain file while it compiles it. (this would be useless
3734  // confusing output).
3735  // We could also the fake main routine to the end of the dictionary file
3736  // however compilation would fail if a main is already there
3737  // (like stress.cxx)
3738  // dict.Append(" ").Append(fakeMain);
3739  TString exec;
3740  AssignAndDelete( exec, ConcatFileName( build_loc, libname ) );
3741  exec += "_ACLiC_exec";
3742  testcmd.ReplaceAll("$SourceFiles","-D__ACLIC__ \"$SourceFiles\"");
3743  testcmd.ReplaceAll("$SourceFiles",dict);
3744  testcmd.ReplaceAll("$ObjectFiles","\"$ObjectFiles\"");
3745  testcmd.ReplaceAll("$ObjectFiles",dictObj);
3746  testcmd.ReplaceAll("$IncludePath",includes);
3747  testcmd.ReplaceAll("$ExeName",exec);
3748  testcmd.ReplaceAll("$LinkedLibs",linkLibraries);
3749  testcmd.ReplaceAll("$BuildDir",build_loc);
3750  if (mode==kDebug)
3751  testcmd.ReplaceAll("$Opt",fFlagsDebug);
3752  else
3753  testcmd.ReplaceAll("$Opt",fFlagsOpt);
3754 
3755 #ifdef WIN32
3756  R__FixLink(testcmd);
3757  testcmd.ReplaceAll("-std=", "-std:");
3758 #endif
3759 
3760  // ======= Build the library
3761  if (result) {
3762  if (verboseLevel>3 && withInfo) {
3763  ::Info("ACLiC","compiling the dictionary and script files");
3764  if (verboseLevel>4) ::Info("ACLiC", "%s", cmd.Data());
3765  }
3766  Int_t success = ExecAndReport(cmd);
3767  if (!success) {
3768  if (produceRootmap) {
3769  gSystem->Unlink(libmapfilename);
3770  }
3771  }
3772  result = success;
3773  }
3774 
3775  if ( result ) {
3776  if (linkDepLibraries) {
3777  // We may have unresolved symbols. Use dyld to resolve the dependent
3778  // libraries and relink.
3779  // FIXME: We will likely have duplicated libraries as we are appending
3780  // FIXME: This likely makes rootcling --lib-list-prefix redundant.
3781  TString depLibsFullPaths;
3782  std::function<bool(const char *)> CollectF = [&depLibsFullPaths](const char *dep) {
3783  TString LibFullPath(dep);
3784  if (!gSystem->FindDynamicLibrary(LibFullPath, /*quiet=*/true)) {
3785  ::Error("TSystem::CompileMacro", "Cannot find library '%s'", dep);
3786  return false; // abort
3787  }
3788  depLibsFullPaths += " " + LibFullPath;
3789  return true;
3790  };
3791  ForeachSharedLibDep(library, CollectF);
3792 
3793  TString relink_cmd = cmd.Strip(TString::kTrailing, ';');
3794  relink_cmd += depLibsFullPaths;
3795  result = ExecAndReport(relink_cmd);
3796  }
3797 
3798  TNamed *k = new TNamed(library,library);
3799  Long_t lib_time;
3800  gSystem->GetPathInfo( library, 0, (Long_t*)0, 0, &lib_time );
3801  k->SetUniqueID(lib_time);
3802  if (!keep) k->SetBit(kMustCleanup);
3803  fCompiled->Add(k);
3804 
3805  if (needLoadMap) {
3806  gInterpreter->LoadLibraryMap(libmapfilename);
3807  }
3808  if (verboseLevel>3 && withInfo) ::Info("ACLiC","loading the shared library");
3809  if (loadLib)
3810  result = LoadLibrary(library);
3811  else
3812  result = kTRUE;
3813 
3814  if ( !result ) {
3815  if (verboseLevel>3 && withInfo) {
3816  ::Info("ACLiC","testing for missing symbols:");
3817  if (verboseLevel>4) ::Info("ACLiC", "%s", testcmd.Data());
3818  }
3819  gSystem->Exec(testcmd);
3820  gSystem->Unlink( exec );
3821  }
3822 
3823  };
3824 
3825  if (verboseLevel<=5 && !internalDebug) {
3826  gSystem->Unlink( dict );
3827  gSystem->Unlink( dicth );
3828  gSystem->Unlink( dictObj );
3829  gSystem->Unlink( linkdef );
3830  gSystem->Unlink( mapfilein );
3831  gSystem->Unlink( mapfileout );
3832  gSystem->Unlink( fakeMain );
3833  gSystem->Unlink( exec );
3834  }
3835  if (verboseLevel>6) {
3836  rcling.Prepend("echo ");
3837  cmd.Prepend("echo \" ").Append(" \" ");
3838  testcmd.Prepend("echo \" ").Append(" \" ");
3839  gSystem->Exec(rcling);
3840  gSystem->Exec( cmd );
3841  gSystem->Exec(testcmd);
3842  }
3843 
3844  return result;
3845 }
3846 
3847 ////////////////////////////////////////////////////////////////////////////////
3848 /// Return the ACLiC properties field. See EAclicProperties for details
3849 /// on the semantic of each bit.
3850 
3852 {
3853  return fAclicProperties;
3854 }
3855 
3856 ////////////////////////////////////////////////////////////////////////////////
3857 /// Return the build architecture.
3858 
3859 const char *TSystem::GetBuildArch() const
3860 {
3861  return fBuildArch;
3862 }
3863 
3864 ////////////////////////////////////////////////////////////////////////////////
3865 /// Return the build compiler
3866 
3867 const char *TSystem::GetBuildCompiler() const
3868 {
3869  return fBuildCompiler;
3870 }
3871 
3872 ////////////////////////////////////////////////////////////////////////////////
3873 /// Return the build compiler version
3874 
3876 {
3877  return fBuildCompilerVersion;
3878 }
3879 
3880 ////////////////////////////////////////////////////////////////////////////////
3881 /// Return the build compiler version identifier string
3882 
3884 {
3885  return fBuildCompilerVersionStr;
3886 }
3887 
3888 ////////////////////////////////////////////////////////////////////////////////
3889 /// Return the build node name.
3890 
3891 const char *TSystem::GetBuildNode() const
3892 {
3893  return fBuildNode;
3894 }
3895 
3896 ////////////////////////////////////////////////////////////////////////////////
3897 /// Return the path of the build directory.
3898 
3899 const char *TSystem::GetBuildDir() const
3900 {
3901  if (fBuildDir.Length()==0) {
3902  if (!gEnv) return "";
3903  const_cast<TSystem*>(this)->fBuildDir = gEnv->GetValue("ACLiC.BuildDir","");
3904  }
3905  return fBuildDir;
3906 }
3907 
3908 ////////////////////////////////////////////////////////////////////////////////
3909 /// Return the debug flags.
3910 
3911 const char *TSystem::GetFlagsDebug() const
3912 {
3913  return fFlagsDebug;
3914 }
3915 
3916 ////////////////////////////////////////////////////////////////////////////////
3917 /// Return the optimization flags.
3918 
3919 const char *TSystem::GetFlagsOpt() const
3920 {
3921  return fFlagsOpt;
3922 }
3923 
3924 ////////////////////////////////////////////////////////////////////////////////
3925 /// AclicMode indicates whether the library should be built in
3926 /// debug mode or optimized. The values are:
3927 /// - TSystem::kDefault : compile the same as the current ROOT
3928 /// - TSystem::kDebug : compiled in debug mode
3929 /// - TSystem::kOpt : optimized the library
3930 
3932 {
3933  return fAclicMode;
3934 }
3935 
3936 ////////////////////////////////////////////////////////////////////////////////
3937 /// Return the command line use to make a shared library.
3938 /// See TSystem::CompileMacro for more details.
3939 
3940 const char *TSystem::GetMakeSharedLib() const
3941 {
3942  return fMakeSharedLib;
3943 }
3944 
3945 ////////////////////////////////////////////////////////////////////////////////
3946 /// Return the command line use to make an executable.
3947 /// See TSystem::CompileMacro for more details.
3948 
3949 const char *TSystem::GetMakeExe() const
3950 {
3951  return fMakeExe;
3952 }
3953 
3954 ////////////////////////////////////////////////////////////////////////////////
3955 /// Get the list of include path.
3956 
3958 {
3960 #ifndef _MSC_VER
3961  // FIXME: This is a temporary fix for the following error with ACLiC
3962  // (and this is apparently not needed anyway):
3963  // 48: input_line_12:8:38: error: use of undeclared identifier 'IC'
3964  // 48: "C:/Users/bellenot/build/debug/etc" -IC:/Users/bellenot/build/debug/etc//cling -IC:/Users/bellenot/build/debug/include"",
3965  // 48: ^
3966  // 48: Error in <ACLiC>: Dictionary generation failed!
3967  fListPaths.Append(" ").Append(gInterpreter->GetIncludePath());
3968 #endif
3969  return fListPaths;
3970 }
3971 
3972 ////////////////////////////////////////////////////////////////////////////////
3973 /// Return the list of library linked to this executable.
3974 /// See TSystem::CompileMacro for more details.
3975 
3976 const char *TSystem::GetLinkedLibs() const
3977 {
3978  return fLinkedLibs;
3979 }
3980 
3981 ////////////////////////////////////////////////////////////////////////////////
3982 /// Return the linkdef suffix chosen by the user for ACLiC.
3983 /// See TSystem::CompileMacro for more details.
3984 
3985 const char *TSystem::GetLinkdefSuffix() const
3986 {
3987  if (fLinkdefSuffix.Length()==0) {
3988  if (!gEnv) return "_linkdef";
3989  const_cast<TSystem*>(this)->fLinkdefSuffix = gEnv->GetValue("ACLiC.Linkdef","_linkdef");
3990  }
3991  return fLinkdefSuffix;
3992 }
3993 
3994 ////////////////////////////////////////////////////////////////////////////////
3995 /// Get the shared library extension.
3996 
3997 const char *TSystem::GetSoExt() const
3998 {
3999  return fSoExt;
4000 }
4001 
4002 ////////////////////////////////////////////////////////////////////////////////
4003 /// Get the object file extension.
4004 
4005 const char *TSystem::GetObjExt() const
4006 {
4007  return fObjExt;
4008 }
4009 
4010 ////////////////////////////////////////////////////////////////////////////////
4011 /// Set the location where ACLiC will create libraries and use as
4012 /// a scratch area.
4013 ///
4014 /// If 'isflat' is false, then the libraries are actually stored in
4015 /// sub-directories of 'build_dir' including the full pathname of the
4016 /// script. If the script is location at /full/path/name/macro.C
4017 /// the library will be located at 'build_dir+/full/path/name/macro_C.so'
4018 /// If 'isflat' is true, then no subdirectory is created and the library
4019 /// is created directly in the directory 'build_dir'. Note that in this
4020 /// mode there is a risk than 2 script of the same in different source
4021 /// directory will over-write each other.
4022 
4023 void TSystem::SetBuildDir(const char *build_dir, Bool_t isflat)
4024 {
4025  fBuildDir = build_dir;
4026  if (isflat)
4028  else
4030 }
4031 
4032 ////////////////////////////////////////////////////////////////////////////////
4033 /// FlagsDebug should contain the options to pass to the C++ compiler
4034 /// in order to compile the library in debug mode.
4035 
4036 void TSystem::SetFlagsDebug(const char *flags)
4037 {
4038  fFlagsDebug = flags;
4039 }
4040 
4041 ////////////////////////////////////////////////////////////////////////////////
4042 /// FlagsOpt should contain the options to pass to the C++ compiler
4043 /// in order to compile the library in optimized mode.
4044 
4045 void TSystem::SetFlagsOpt(const char *flags)
4046 {
4047  fFlagsOpt = flags;
4048 }
4049 
4050 ////////////////////////////////////////////////////////////////////////////////
4051 /// AclicMode indicates whether the library should be built in
4052 /// debug mode or optimized. The values are:
4053 /// - TSystem::kDefault : compile the same as the current ROOT
4054 /// - TSystem::kDebug : compiled in debug mode
4055 /// - TSystem::kOpt : optimized the library
4056 
4058 {
4059  fAclicMode = mode;
4060 }
4061 
4062 ////////////////////////////////////////////////////////////////////////////////
4063 /// Directives has the same syntax as the argument of SetMakeSharedLib but is
4064 /// used to create an executable. This creation is used as a means to output
4065 /// a list of unresolved symbols, when loading a shared library has failed.
4066 /// The required variable is $ExeName rather than $SharedLib, e.g.:
4067 /// ~~~ {.cpp}
4068 /// gSystem->SetMakeExe(
4069 /// "g++ -Wall -fPIC $IncludePath $SourceFiles
4070 /// -o $ExeName $LinkedLibs -L/usr/X11R6/lib -lX11 -lm -ldl -rdynamic");
4071 /// ~~~
4072 
4073 void TSystem::SetMakeExe(const char *directives)
4074 {
4075  fMakeExe = directives;
4076  // NOTE: add verification that the directives has the required variables
4077 }
4078 
4079 ////////////////////////////////////////////////////////////////////////////////
4080 /// Directives should contain the description on how to compile and link a
4081 /// shared lib. This description can be any valid shell command, including
4082 /// the use of ';' to separate several instructions. However, shell specific
4083 /// construct should be avoided. In particular this description can contain
4084 /// environment variables, like $ROOTSYS (or %ROOTSYS% on windows).
4085 /// ~~~ {.cpp}
4086 /// Five special variables will be expanded before execution:
4087 /// Variable name Expands to
4088 /// ------------- ----------
4089 /// $SourceFiles Name of source files to be compiled
4090 /// $SharedLib Name of the shared library being created
4091 /// $LibName Name of shared library without extension
4092 /// $BuildDir Directory where the files will be created
4093 /// $IncludePath value of fIncludePath
4094 /// $LinkedLibs value of fLinkedLibs
4095 /// $DepLibs libraries on which this library depends on
4096 /// $ObjectFiles Name of source files to be compiler with
4097 /// their extension changed to .o or .obj
4098 /// $Opt location of the optimization/debug options
4099 /// set fFlagsDebug and fFlagsOpt
4100 /// ~~~
4101 /// e.g.:
4102 /// ~~~ {.cpp}
4103 /// gSystem->SetMakeSharedLib(
4104 /// "KCC -n32 --strict $IncludePath -K0 \$Opt $SourceFile
4105 /// --no_exceptions --signed_chars --display_error_number
4106 /// --diag_suppress 68 -o $SharedLib");
4107 ///
4108 /// gSystem->setMakeSharedLib(
4109 /// "Cxx $IncludePath -c $SourceFile;
4110 /// ld -L/usr/lib/cmplrs/cxx -rpath /usr/lib/cmplrs/cxx -expect_unresolved
4111 /// \$Opt -shared /usr/lib/cmplrs/cc/crt0.o /usr/lib/cmplrs/cxx/_main.o
4112 /// -o $SharedLib $ObjectFile -lcxxstd -lcxx -lexc -lots -lc"
4113 ///
4114 /// gSystem->SetMakeSharedLib(
4115 /// "$HOME/mygcc/bin/g++ \$Opt -Wall -fPIC $IncludePath $SourceFile
4116 /// -shared -o $SharedLib");
4117 ///
4118 /// gSystem->SetMakeSharedLib(
4119 /// "cl -DWIN32 -D_WIN32 -D_MT -D_DLL -MD /O2 /G5 /MD -DWIN32
4120 /// -D_WINDOWS $IncludePath $SourceFile
4121 /// /link -PDB:NONE /NODEFAULTLIB /INCREMENTAL:NO /RELEASE /NOLOGO
4122 /// $LinkedLibs -entry:_DllMainCRTStartup@12 -dll /out:$SharedLib")
4123 /// ~~~
4124 
4125 void TSystem::SetMakeSharedLib(const char *directives)
4126 {
4127  fMakeSharedLib = directives;
4128  // NOTE: add verification that the directives has the required variables
4129 }
4130 
4131 ////////////////////////////////////////////////////////////////////////////////
4132 /// \brief Add a directory to the already set include path.
4133 /// \param[in] includePath The path to the directory.
4134 /// \note This interface is mostly relevant for ACLiC and it does *not* inform
4135 /// gInterpreter for this include path. If the TInterpreter needs to know
4136 /// about the include path please use TInterpreter::AddIncludePath() .
4137 /// \warning The path should start with the \c -I prefix, i.e.
4138 /// <tt>gSystem->AddIncludePath("-I /path/to/my/includes")</tt>.
4139 void TSystem::AddIncludePath(const char *includePath)
4140 {
4141  if (includePath) {
4142  fIncludePath += " ";
4143  fIncludePath += includePath;
4144  }
4145 }
4146 
4147 ////////////////////////////////////////////////////////////////////////////////
4148 /// Add linkedLib to already set linked libs.
4149 
4150 void TSystem::AddLinkedLibs(const char *linkedLib)
4151 {
4152  if (linkedLib) {
4153  fLinkedLibs += " ";
4154  fLinkedLibs += linkedLib;
4155  }
4156 }
4157 
4158 ////////////////////////////////////////////////////////////////////////////////
4159 /// IncludePath should contain the list of compiler flags to indicate where
4160 /// to find user defined header files. It is used to expand $IncludePath in
4161 /// the directives given to SetMakeSharedLib() and SetMakeExe(), e.g.:
4162 /// ~~~ {.cpp}
4163 /// gSystem->SetInclude("-I$ROOTSYS/include -Imydirectory/include");
4164 /// ~~~
4165 /// the default value of IncludePath on Unix is:
4166 /// ~~~ {.cpp}
4167 /// "-I$ROOTSYS/include "
4168 /// ~~~
4169 /// and on Windows:
4170 /// ~~~ {.cpp}
4171 /// "/I%ROOTSYS%/include "
4172 /// ~~~
4173 
4174 void TSystem::SetIncludePath(const char *includePath)
4175 {
4176  fIncludePath = includePath;
4177 }
4178 
4179 ////////////////////////////////////////////////////////////////////////////////
4180 /// LinkedLibs should contain the library directory and list of libraries
4181 /// needed to recreate the current executable. It is used to expand $LinkedLibs
4182 /// in the directives given to SetMakeSharedLib() and SetMakeExe()
4183 /// The default value on Unix is: `root-config --glibs`
4184 
4185 void TSystem::SetLinkedLibs(const char *linkedLibs)
4186 {
4187  fLinkedLibs = linkedLibs;
4188 }
4189 
4190 ////////////////////////////////////////////////////////////////////////////////
4191 /// The 'suffix' will be appended to the name of a script loaded by ACLiC
4192 /// and used to locate any eventual additional linkdef information that
4193 /// ACLiC should used to produce the dictionary.
4194 ///
4195 /// So by default, when doing .L MyScript.cxx, ACLiC will look
4196 /// for a file name MyScript_linkdef and having one of the .h (.hpp,
4197 /// etc.) extensions. If such a file exist, it will be added to
4198 /// the end of the linkdef file used to created the ACLiC dictionary.
4199 /// This effectively enable the full customization of the creation
4200 /// of the dictionary. It should be noted that the file is intended
4201 /// as a linkdef `fragment`, so usually you would not list the
4202 /// typical:
4203 /// ~~~ {.cpp}
4204 /// #pragma link off ....
4205 /// ~~~
4206 
4207 void TSystem::SetLinkdefSuffix(const char *suffix)
4208 {
4209  fLinkdefSuffix = suffix;
4210 }
4211 
4212 
4213 ////////////////////////////////////////////////////////////////////////////////
4214 /// Set shared library extension, should be either .so, .sl, .a, .dll, etc.
4215 
4216 void TSystem::SetSoExt(const char *SoExt)
4217 {
4218  fSoExt = SoExt;
4219 }
4220 
4221 ////////////////////////////////////////////////////////////////////////////////
4222 /// Set object files extension, should be either .o, .obj, etc.
4223 
4224 void TSystem::SetObjExt(const char *ObjExt)
4225 {
4226  fObjExt = ObjExt;
4227 }
4228 
4229 ////////////////////////////////////////////////////////////////////////////////
4230 /// This method split a filename of the form:
4231 /// ~~~ {.cpp}
4232 /// [path/]macro.C[+|++[k|f|g|O|c|s|d|v|-]][(args)].
4233 /// ~~~
4234 /// It stores the ACliC mode [+|++[options]] in 'mode',
4235 /// the arguments (including parenthesis) in arg
4236 /// and the I/O indirection in io
4237 
4238 TString TSystem::SplitAclicMode(const char *filename, TString &aclicMode,
4239  TString &arguments, TString &io) const
4240 {
4241  char *fname = Strip(filename);
4242  TString filenameCopy = fname;
4243  filenameCopy = filenameCopy.Strip();
4244 
4245  if (filenameCopy.EndsWith(";")) {
4246  filenameCopy.Remove(filenameCopy.Length() - 1);
4247  filenameCopy = filenameCopy.Strip();
4248  }
4249  if (filenameCopy.EndsWith(")")) {
4250  Ssiz_t posArgEnd = filenameCopy.Length() - 1;
4251  // There is an argument; find its start!
4252  int parenNestCount = 1;
4253  bool inString = false;
4254  Ssiz_t posArgBegin = posArgEnd - 1;
4255  for (; parenNestCount && posArgBegin >= 0; --posArgBegin) {
4256  // Escaped if the previous character is a `\` - but not if it
4257  // itself is preceded by a `\`!
4258  if (posArgBegin > 0 && filenameCopy[posArgBegin] == '\\' &&
4259  (posArgBegin == 1 || filenameCopy[posArgBegin - 1] != '\\')) {
4260  // skip escape.
4261  --posArgBegin;
4262  continue;
4263  }
4264  switch (filenameCopy[posArgBegin]) {
4265  case ')':
4266  if (!inString)
4267  ++parenNestCount;
4268  break;
4269  case '(':
4270  if (!inString)
4271  --parenNestCount;
4272  break;
4273  case '"': inString = !inString; break;
4274  }
4275  }
4276  if (parenNestCount || inString) {
4277  Error("SplitAclicMode", "Cannot parse argument in %s", filename);
4278  } else {
4279  arguments = filenameCopy(posArgBegin + 1, posArgEnd - 1);
4280  fname[posArgBegin + 1] = 0;
4281  }
4282  }
4283 
4284  // strip off I/O redirect tokens from filename
4285  {
4286  char *s2 = nullptr;
4287  char *s3;
4288  s2 = strstr(fname, ">>");
4289  if (!s2) s2 = strstr(fname, "2>");
4290  if (!s2) s2 = strchr(fname, '>');
4291  s3 = strchr(fname, '<');
4292  if (s2 && s3) s2 = s2<s3 ? s2 : s3;
4293  if (s3 && !s2) s2 = s3;
4294  if (s2==fname) {
4295  io = fname;
4296  aclicMode = "";
4297  arguments = "";
4298  delete []fname;
4299  return "";
4300  } else if (s2) {
4301  s2--;
4302  while (s2 && *s2 == ' ') s2--;
4303  s2++;
4304  io = s2; // ssave = *s2;
4305  *s2 = 0;
4306  } else
4307  io = "";
4308  }
4309 
4310  // remove the possible ACLiC + or ++ and g or O etc
4311  aclicMode.Clear();
4312  int len = strlen(fname);
4313  TString mode;
4314  while (len > 1) {
4315  if (strchr("kfgOcsdv-", fname[len - 1])) {
4316  mode += fname[len - 1];
4317  --len;
4318  } else {
4319  break;
4320  }
4321  }
4322  Bool_t compile = len && fname[len - 1] == '+';
4323  Bool_t remove = compile && len > 1 && fname[len - 2] == '+';
4324  if (compile) {
4325  if (mode.Length()) {
4326  fname[len] = 0;
4327  }
4328  if (remove) {
4329  fname[strlen(fname)-2] = 0;
4330  aclicMode = "++";
4331  } else {
4332  fname[strlen(fname)-1] = 0;
4333  aclicMode = "+";
4334  }
4335  if (mode.Length())
4336  aclicMode += mode;
4337  }
4338 
4339  TString resFilename = fname;
4340 
4341  delete []fname;
4342  return resFilename;
4343 }
4344 
4345 ////////////////////////////////////////////////////////////////////////////////
4346 /// Remove the shared libs produced by the CompileMacro() function.
4347 
4349 {
4350  TIter next(fCompiled);
4351  TNamed *lib;
4352  while ((lib = (TNamed*)next())) {
4353  if (lib->TestBit(kMustCleanup)) Unlink(lib->GetTitle());
4354  }
4355 }
4356 
4357 ////////////////////////////////////////////////////////////////////////////////
4358 /// Register version of plugin library.
4359 
4361 {
4362  if (versionCode != TROOT::RootVersionCode() && gLibraryVersion)
4363  gLibraryVersion[gLibraryVersionIdx] = versionCode;
4364 }
TSystem::fObjExt
TString fObjExt
Definition: TSystem.h:314
TObject::kMustCleanup
@ kMustCleanup
if object destructor must call RecursiveRemove()
Definition: TObject.h:60
c
#define c(i)
Definition: RSha256.hxx:101
l
auto * l
Definition: textangle.C:4
TSystem::GetHomeDirectory
virtual std::string GetHomeDirectory(const char *userName=nullptr) const
Return the user's home directory.
Definition: TSystem.cxx:894
TRegexp::Index
Ssiz_t Index(const TString &str, Ssiz_t *len, Ssiz_t start=0) const
Find the first occurrence of the regexp in string and return the position, or -1 if there is no match...
Definition: TRegexp.cxx:209
ROOT::TMetaUtils::propNames::separator
static const std::string separator("@@@")
TStdExceptionHandler::kSEAbort
@ kSEAbort
Definition: TSysEvtHandler.h:175
TSystem::Link
virtual int Link(const char *from, const char *to)
Create a link from file1 to file2.
Definition: TSystem.cxx:1357
TSystem::FindFile
virtual const char * FindFile(const char *search, TString &file, EAccessMode mode=kFileExists)
Find location of file in a search path.
Definition: TSystem.cxx:1534
TSystem::Unlink
virtual int Unlink(const char *name)
Unlink, i.e.
Definition: TSystem.cxx:1379
n
const Int_t n
Definition: legend1.C:16
TSystem::GetPathInfo
int GetPathInfo(const char *path, Long_t *id, Long_t *size, Long_t *flags, Long_t *modtime)
Get info about a file: id, size, flags, modification time.
Definition: TSystem.cxx:1396
R__WriteDependencyFile
static void R__WriteDependencyFile(const TString &build_loc, const TString &depfilename, const TString &filename, const TString &library, const TString &libname, const TString &extension, const char *version_var_prefix, const TString &includes, const TString &defines, const TString &incPath)
Definition: TSystem.cxx:2573
TSystem::ExpandFileName
virtual const char * ExpandFileName(const char *fname)
Expand a pathname getting rid of special shell characters like ~.
Definition: TSystem.cxx:1096
TSystem::RemoveOnExit
void RemoveOnExit(TObject *obj)
Objects that should be deleted on exit of the OS interface.
Definition: TSystem.cxx:293
gRootDir
const char * gRootDir
Definition: TSystem.cxx:61
TSystem::GetBuildNode
virtual const char * GetBuildNode() const
Return the build node name.
Definition: TSystem.cxx:3891
kTRUE
const Bool_t kTRUE
Definition: RtypesCore.h:100
gProgName
const char * gProgName
Definition: TSystem.cxx:62
TObject::SysError
virtual void SysError(const char *method, const char *msgfmt,...) const
Issue system error message.
Definition: TObject.cxx:907
tt
auto * tt
Definition: textangle.C:16
e
#define e(i)
Definition: RSha256.hxx:103
TObject::TestBit
R__ALWAYS_INLINE Bool_t TestBit(UInt_t f) const
Definition: TObject.h:187
TSystem::fNfd
Int_t fNfd
Signals that were trapped.
Definition: TSystem.h:280
TSystem::kOpt
@ kOpt
Definition: TSystem.h:269
TSystem::Setenv
virtual void Setenv(const char *name, const char *value)
Set environment variable.
Definition: TSystem.cxx:1645
snprintf
#define snprintf
Definition: civetweb.c:1540
TSystem::GetDirPtr
virtual void * GetDirPtr() const
Definition: TSystem.h:414
TObjArray
An array of TObjects.
Definition: TObjArray.h:37
TSystem::GetAclicProperties
virtual Int_t GetAclicProperties() const
Return the ACLiC properties field.
Definition: TSystem.cxx:3851
Warning
void Warning(const char *location, const char *msgfmt,...)
Use this function in warning situations.
Definition: TError.cxx:231
f
#define f(i)
Definition: RSha256.hxx:104
TVersionCheck::TVersionCheck
TVersionCheck(int versionCode)
Register version of plugin library.
Definition: TSystem.cxx:4360
R__READ_LOCKGUARD
#define R__READ_LOCKGUARD(mutex)
Definition: TVirtualRWMutex.h:160
Option_t
const char Option_t
Definition: RtypesCore.h:66
TROOT::RootVersionCode
static Int_t RootVersionCode()
Return ROOT version code as defined in RVersion.h.
Definition: TROOT.cxx:2864
TSystem::ExitLoop
virtual void ExitLoop()
Exit from event loop.
Definition: TSystem.cxx:393
UserGroup_t::fUser
TString fUser
Definition: TSystem.h:141
TSystem::ShowOutput
virtual void ShowOutput(RedirectHandle_t *h)
Display the content associated with the redirection described by the opaque handle 'h'.
Definition: TSystem.cxx:1721
TSystem::ChangeDirectory
virtual Bool_t ChangeDirectory(const char *path)
Change directory.
Definition: TSystem.cxx:861
ProcInfo_t
Definition: TSystem.h:192
TSystem::SetSoExt
virtual void SetSoExt(const char *soExt)
Set shared library extension, should be either .so, .sl, .a, .dll, etc.
Definition: TSystem.cxx:4216
TString::Strip
TSubString Strip(EStripType s=kTrailing, char c=' ') const
Return a substring of self stripped at beginning and/or end.
Definition: TString.cxx:1128
kNPOS
const Ssiz_t kNPOS
Definition: RtypesCore.h:124
ROOT::FoundationUtils::GetCurrentDir
std::string GetCurrentDir()
Definition: FoundationUtils.cxx:37
TSeqCollection::Add
virtual void Add(TObject *obj)
Definition: TSeqCollection.h:38
TSystem::GetBuildDir
virtual const char * GetBuildDir() const
Return the path of the build directory.
Definition: TSystem.cxx:3899
TString::Prepend
TString & Prepend(const char *cs)
Definition: TString.h:661
gLibraryVersionMax
static Int_t gLibraryVersionMax
Definition: TSystem.cxx:70
TSystem::SetBuildDir
virtual void SetBuildDir(const char *build_dir, Bool_t isflat=kFALSE)
Set the location where ACLiC will create libraries and use as a scratch area.
Definition: TSystem.cxx:4023
gEnv
R__EXTERN TEnv * gEnv
Definition: TEnv.h:171
TSystem::BaseName
virtual const char * BaseName(const char *pathname)
Base name of a file name. Base name of /user/root is root.
Definition: TSystem.cxx:933
TROOT::GetIncludeDir
static const TString & GetIncludeDir()
Get the include directory in the installation. Static utility function.
Definition: TROOT.cxx:2954
TSystem::FindDynamicLibrary
virtual const char * FindDynamicLibrary(TString &lib, Bool_t quiet=kFALSE)
Find a dynamic library using the system search paths.
Definition: TSystem.cxx:2030
TSystem::fFlagsOpt
TString fFlagsOpt
Definition: TSystem.h:309
kSigInterrupt
@ kSigInterrupt
Definition: TSysEvtHandler.h:115
TTimer::GetAbsTime
TTime GetAbsTime() const
Definition: TTimer.h:78
TSystem::RemoveTimer
virtual TTimer * RemoveTimer(TTimer *t)
Remove timer from list of system timers.
Definition: TSystem.cxx:482
TString::Data
const char * Data() const
Definition: TString.h:369
TSystem::FreeDirectory
virtual void FreeDirectory(void *dirp)
Free a directory.
Definition: TSystem.cxx:844
TSystem::fTimers
TSeqCollection * fTimers
Definition: TSystem.h:294
TSystem::IsAbsoluteFileName
virtual Bool_t IsAbsoluteFileName(const char *dir)
Return true if dir is an absolute pathname.
Definition: TSystem.cxx:950
TSystem::fDone
Bool_t fDone
Definition: TSystem.h:291
TSystem::Openlog
virtual void Openlog(const char *name, Int_t options, ELogFacility facility)
Open connection to system log daemon.
Definition: TSystem.cxx:1673
TSystem::GetHostByName
virtual TInetAddress GetHostByName(const char *server)
Get Internet Protocol (IP) address of host.
Definition: TSystem.cxx:2295
TSystem::Which
virtual char * Which(const char *search, const char *file, EAccessMode mode=kFileExists)
Find location of file in a search path.
Definition: TSystem.cxx:1544
TSystem::StackTrace
virtual void StackTrace()
Print a stack trace.
Definition: TSystem.cxx:733
ClassImp
#define ClassImp(name)
Definition: Rtypes.h:364
Form
char * Form(const char *fmt,...)
TNamed::GetTitle
virtual const char * GetTitle() const
Returns title of object.
Definition: TNamed.h:48
TSignalHandler
Definition: TSysEvtHandler.h:127
TObjString.h
TSystem::GetSoExt
virtual const char * GetSoExt() const
Get the shared library extension.
Definition: TSystem.cxx:3997
TProcessEventTimer
Definition: TSystem.h:257
FileStat_t
Definition: TSystem.h:124
TSystem::GetFlagsDebug
virtual const char * GetFlagsDebug() const
Return the debug flags.
Definition: TSystem.cxx:3911
FileStat_t::fMtime
Long_t fMtime
Definition: TSystem.h:131
TSystem::GetFlagsOpt
virtual const char * GetFlagsOpt() const
Return the optimization flags.
Definition: TSystem.cxx:3919
TString::Replace
TString & Replace(Ssiz_t pos, Ssiz_t n, const char *s)
Definition: TString.h:682
TCollection::Remove
virtual TObject * Remove(TObject *obj)=0
TCollection::Delete
virtual void Delete(Option_t *option="")=0
Delete this object.
r
ROOT::R::TRInterface & r
Definition: Object.C:4
TSystem::SetFlagsDebug
virtual void SetFlagsDebug(const char *)
FlagsDebug should contain the options to pass to the C++ compiler in order to compile the library in ...
Definition: TSystem.cxx:4036
TSystem::Chmod
virtual int Chmod(const char *file, UInt_t mode)
Set the file permission bits. Returns -1 in case or error, 0 otherwise.
Definition: TSystem.cxx:1504
TSystem::fLinkdefSuffix
TString fLinkdefSuffix
Definition: TSystem.h:318
TObject::Info
virtual void Info(const char *method, const char *msgfmt,...) const
Issue info message.
Definition: TObject.cxx:867
Long64_t
long long Long64_t
Definition: RtypesCore.h:80
gLibraryVersion
static Int_t * gLibraryVersion
Definition: TSystem.cxx:68
TObject::Error
virtual void Error(const char *method, const char *msgfmt,...) const
Issue error message.
Definition: TObject.cxx:893
TSystem::GetPeerName
virtual TInetAddress GetPeerName(int sock)
Get Internet Protocol (IP) address of remote host and port #.
Definition: TSystem.cxx:2304
TSystem::GetLinkedLibs
virtual const char * GetLinkedLibs() const
Return the list of library linked to this executable.
Definition: TSystem.cxx:3976
TString::kIgnoreCase
@ kIgnoreCase
Definition: TString.h:268
TOrdCollection
Ordered collection.
Definition: TOrdCollection.h:32
TStdExceptionHandler::Handle
virtual EStatus Handle(std::exception &exc)=0
TSystem::DynamicPathName
char * DynamicPathName(const char *lib, Bool_t quiet=kFALSE)
Find a dynamic library called lib using the system search paths.
Definition: TSystem.cxx:2016
gInterpreter
#define gInterpreter
Definition: TInterpreter.h:560
TSystem::GetLibraries
virtual const char * GetLibraries(const char *regexp="", const char *option="", Bool_t isRegexp=kTRUE)
Return a space separated list of loaded shared libraries.
Definition: TSystem.cxx:2140
kS_IXUSR
@ kS_IXUSR
Definition: TSystem.h:104
TObject::kBitMask
@ kBitMask
Definition: TObject.h:82
TGeant4Unit::s
static constexpr double s
Definition: TGeant4SystemOfUnits.h:162
TSystem
Abstract base class defining a generic interface to the underlying Operating System.
Definition: TSystem.h:266
Int_t
int Int_t
Definition: RtypesCore.h:45
TSystem::SetProgname
virtual void SetProgname(const char *name)
Set the application name (from command line, argv[0]) and copy it in gProgName.
Definition: TSystem.cxx:223
TTimer::IsInterruptingSyscalls
Bool_t IsInterruptingSyscalls() const
Definition: TTimer.h:82
TSystem::fIncludePath
TString fIncludePath
Definition: TSystem.h:311
TVirtualMutex
This class implements a mutex interface.
Definition: TVirtualMutex.h:32
TObject::GetUniqueID
virtual UInt_t GetUniqueID() const
Return the unique object id.
Definition: TObject.cxx:377
TNamed::fName
TString fName
Definition: TNamed.h:32
TSystem::GetLinkdefSuffix
virtual const char * GetLinkdefSuffix() const
Return the linkdef suffix chosen by the user for ACLiC.
Definition: TSystem.cxx:3985
TString::Contains
Bool_t Contains(const char *pat, ECaseCompare cmp=kExact) const
Definition: TString.h:624
SafeDelete
#define SafeDelete(p)
Definition: RConfig.hxx:532
TString::EndsWith
Bool_t EndsWith(const char *pat, ECaseCompare cmp=kExact) const
Return true if string ends with the specified string.
Definition: TString.cxx:2199
TSystem::GetError
virtual const char * GetError()
Return system error string.
Definition: TSystem.cxx:251
x
Double_t x[n]
Definition: legend1.C:17
gProgPath
const char * gProgPath
Definition: TSystem.cxx:63
TSystem::ConsistentWith
virtual Bool_t ConsistentWith(const char *path, void *dirptr=nullptr)
Check consistency of this helper with the one required by 'path' or 'dirptr'.
Definition: TSystem.cxx:803
TString::Length
Ssiz_t Length() const
Definition: TString.h:410
TSystem::MakeDirectory
virtual int MakeDirectory(const char *name)
Make a directory.
Definition: TSystem.cxx:826
TSystem::GetFromPipe
virtual TString GetFromPipe(const char *command)
Execute command and return output in TString.
Definition: TSystem.cxx:681
TSystem::fListPaths
TString fListPaths
Definition: TSystem.h:310
TString::kExact
@ kExact
Definition: TString.h:268
TStdExceptionHandler::kSEHandled
@ kSEHandled
Definition: TSysEvtHandler.h:175
TClass.h
TEnv::GetValue
virtual Int_t GetValue(const char *name, Int_t dflt) const
Returns the integer value for a resource.
Definition: TEnv.cxx:491
TSystem::fCompiled
TSeqCollection * fCompiled
Definition: TSystem.h:320
TSystem::TempFileName
virtual FILE * TempFileName(TString &base, const char *dir=nullptr)
Create a secure temporary file by appending a unique 6 letter string to base.
Definition: TSystem.cxx:1495
ROOT::gCoreMutex
R__EXTERN TVirtualRWMutex * gCoreMutex
Definition: TVirtualRWMutex.h:32
TSystem::NextTimeOut
virtual Long_t NextTimeOut(Bool_t mode)
Time when next timer of mode (synchronous=kTRUE or asynchronous=kFALSE) will time-out (in ms).
Definition: TSystem.cxx:495
TSystem::GetMakeExe
virtual const char * GetMakeExe() const
Return the command line use to make an executable.
Definition: TSystem.cxx:3949
ESignals
ESignals
Definition: TSysEvtHandler.h:107
TSystem::AddStdExceptionHandler
virtual void AddStdExceptionHandler(TStdExceptionHandler *eh)
Add an exception handler to list of system exception handlers.
Definition: TSystem.cxx:612
TSystem::PrependPathName
virtual const char * PrependPathName(const char *dir, TString &name)
Concatenate a directory and a file name.
Definition: TSystem.cxx:1079
TSystem::DirName
virtual const char * DirName(const char *pathname)
Return the directory name in pathname.
Definition: TSystem.cxx:1005
ROOT::FoundationUtils::MakePathRelative
std::string MakePathRelative(const std::string &path, const std::string &base, bool isBuildingROOT=false)
Definition: FoundationUtils.cxx:72
TSystem::SetAclicMode
virtual void SetAclicMode(EAclicMode mode)
AclicMode indicates whether the library should be built in debug mode or optimized.
Definition: TSystem.cxx:4057
TObjArray::At
TObject * At(Int_t idx) const
Definition: TObjArray.h:166
ELogLevel
ELogLevel
Definition: TSystem.h:55
TSystem::ResetSignal
virtual void ResetSignal(ESignals sig, Bool_t reset=kTRUE)
If reset is true reset the signal handler for the specified signal to the default handler,...
Definition: TSystem.cxx:577
TString::Format
static TString Format(const char *fmt,...)
Static method which formats a string using a printf style format descriptor and return a TString.
Definition: TString.cxx:2333
TSystem::GetUserInfo
virtual UserGroup_t * GetUserInfo(Int_t uid)
Returns all user info in the UserGroup_t structure.
Definition: TSystem.cxx:1597
TEnv.h
TSystem::Load
virtual int Load(const char *module, const char *entry="", Bool_t system=kFALSE)
Load a shared library.
Definition: TSystem.cxx:1853
TSystem::SetLinkedLibs
virtual void SetLinkedLibs(const char *linkedLibs)
LinkedLibs should contain the library directory and list of libraries needed to recreate the current ...
Definition: TSystem.cxx:4185
TSystem::Utime
virtual int Utime(const char *file, Long_t modtime, Long_t actime)
Set the a files modification and access times.
Definition: TSystem.cxx:1523
TString
Basic string class.
Definition: TString.h:136
RETRY
#define RETRY
Definition: TException.h:49
TSystem::AccessPathName
virtual Bool_t AccessPathName(const char *path, EAccessMode mode=kFileExists)
Returns FALSE if one can access a file using the specified access mode.
Definition: TSystem.cxx:1294
TSystem::AnnounceUdpService
virtual int AnnounceUdpService(int port, int backlog)
Announce UDP service.
Definition: TSystem.cxx:2358
R_ISREG
Bool_t R_ISREG(Int_t mode)
Definition: TSystem.h:118
TSystem::IsPathLocal
virtual Bool_t IsPathLocal(const char *path)
Returns TRUE if the url in 'path' points to the local file system.
Definition: TSystem.cxx:1303
v
@ v
Definition: rootcling_impl.cxx:3664
TSystem::IgnoreInterrupt
virtual void IgnoreInterrupt(Bool_t ignore=kTRUE)
If ignore is true ignore the interrupt signal, else restore previous behaviour.
Definition: TSystem.cxx:603
TString::Clear
void Clear()
Clear string without changing its capacity.
Definition: TString.cxx:1198
b
#define b(i)
Definition: RSha256.hxx:100
TSystem::AddTimer
virtual void AddTimer(TTimer *t)
Add timer to list of system timers.
Definition: TSystem.cxx:472
TSystem::GetDirName
virtual TString GetDirName(const char *pathname)
Return the directory name in pathname.
Definition: TSystem.cxx:1030
TSystem::CopyFile
virtual int CopyFile(const char *from, const char *to, Bool_t overwrite=kFALSE)
Copy a file.
Definition: TSystem.cxx:1339
bool
TSystem::WorkingDirectory
virtual const char * WorkingDirectory()
Return working directory.
Definition: TSystem.cxx:870
TString::ReplaceAll
TString & ReplaceAll(const TString &s1, const TString &s2)
Definition: TString.h:692
TROOT::GetRootSys
static const TString & GetRootSys()
Get the rootsys directory in the installation. Static utility function.
Definition: TROOT.cxx:2902
TSystem::fFileHandler
TSeqCollection * fFileHandler
Definition: TSystem.h:296
gXDisplay
TFileHandler * gXDisplay
Definition: TSystem.cxx:66
TSystem::fAclicMode
EAclicMode fAclicMode
Definition: TSystem.h:315
TSystem::SplitAclicMode
virtual TString SplitAclicMode(const char *filename, TString &mode, TString &args, TString &io) const
This method split a filename of the form:
Definition: TSystem.cxx:4238
TSystem::OpenConnection
virtual int OpenConnection(const char *server, int port, int tcpwindowsize=-1, const char *protocol="tcp")
Open a connection to another host.
Definition: TSystem.cxx:2340
RedirectHandle_t
Definition: TSystem.h:203
TString::kBoth
@ kBoth
Definition: TString.h:267
TEnvRec
Definition: TEnv.h:87
TSystem::GetServiceByPort
virtual char * GetServiceByPort(int port)
Get name of internet service.
Definition: TSystem.cxx:2331
TString::Last
Ssiz_t Last(char c) const
Find last occurrence of a character c.
Definition: TString.cxx:913
TSystem::GetLastErrorString
TString & GetLastErrorString()
Return the thread local storage for the custom last error message.
Definition: TSystem.cxx:2106
TSystem::fStdExceptionHandler
TSeqCollection * fStdExceptionHandler
Definition: TSystem.h:297
TSystem::ResetErrno
static void ResetErrno()
Static function resetting system error number.
Definition: TSystem.cxx:277
TROOT.h
TSystem::GetBuildCompilerVersionStr
virtual const char * GetBuildCompilerVersionStr() const
Return the build compiler version identifier string.
Definition: TSystem.cxx:3883
TSystem::FindHelper
TSystem * FindHelper(const char *path, void *dirptr=nullptr)
Create helper TSystem to handle file and directory operations that might be special for remote file a...
Definition: TSystem.cxx:745
TSystem::fBuildCompilerVersion
TString fBuildCompilerVersion
Definition: TSystem.h:304
TObjString
Collectable string class.
Definition: TObjString.h:28
TApplication.h
R__MatchFilename
static bool R__MatchFilename(const char *left, const char *right)
Figure out if left and right points to the same object in the file system.
Definition: TSystem.cxx:1812
TSystem::GetIncludePath
virtual const char * GetIncludePath()
Get the list of include path.
Definition: TSystem.cxx:3957
TSystem::mkdir
virtual int mkdir(const char *name, Bool_t recursive=kFALSE)
Make a file system directory.
Definition: TSystem.cxx:905
TProcessEventTimer::TProcessEventTimer
TProcessEventTimer(Long_t delay)
Create async event processor timer. Delay is in milliseconds.
Definition: TSystem.cxx:79
TSystem::fLevel
Int_t fLevel
Definition: TSystem.h:292
gSystem
TSystem * gSystem
Definition: TSystem.cxx:65
TStorage::ReAllocInt
static Int_t * ReAllocInt(Int_t *vp, size_t size, size_t oldsize)
Reallocate (i.e.
Definition: TStorage.cxx:295
TPluginHandler
Definition: TPluginManager.h:101
TSystem::kDefault
@ kDefault
Definition: TSystem.h:269
TROOT::ConvertVersionCode2Int
static Int_t ConvertVersionCode2Int(Int_t code)
Convert version code to an integer, i.e. 331527 -> 51507.
Definition: TROOT.cxx:2845
TSystem::fHelpers
TSeqCollection * fHelpers
Definition: TSystem.h:321
TSystem::fLinkedLibs
TString fLinkedLibs
Definition: TSystem.h:312
TRegexp.h
TSystem::Init
virtual Bool_t Init()
Initialize the OS interface.
Definition: TSystem.cxx:181
TSystem::SetLinkdefSuffix
virtual void SetLinkdefSuffix(const char *suffix)
The 'suffix' will be appended to the name of a script loaded by ACLiC and used to locate any eventual...
Definition: TSystem.cxx:4207
TSystem::StripOffProto
static const char * StripOffProto(const char *path, const char *proto)
Strip off protocol string from specified path.
Definition: TSystem.cxx:115
TStdExceptionHandler::kSEProceed
@ kSEProceed
Definition: TSysEvtHandler.h:175
TSystem::SetFlagsOpt
virtual void SetFlagsOpt(const char *)
FlagsOpt should contain the options to pass to the C++ compiler in order to compile the library in op...
Definition: TSystem.cxx:4045
TSystem::TSystem
TSystem(const TSystem &)=delete
TSystem::GetBuildArch
virtual const char * GetBuildArch() const
Return the build architecture.
Definition: TSystem.cxx:3859
TSystem::GetSysInfo
virtual int GetSysInfo(SysInfo_t *info) const
Returns static system info, like OS type, CPU type, number of CPUs RAM size, etc into the SysInfo_t s...
Definition: TSystem.cxx:2462
TSystem::DynFindSymbol
virtual Func_t DynFindSymbol(const char *module, const char *entry)
Find specific entry point in specified library.
Definition: TSystem.cxx:2040
TTimer
Handles synchronous and a-synchronous timer events.
Definition: TTimer.h:51
TSystem::fBuildDir
TString fBuildDir
Definition: TSystem.h:307
TTimer::IsAsync
Bool_t IsAsync() const
Definition: TTimer.h:81
gLibraryVersionIdx
static Int_t gLibraryVersionIdx
Definition: TSystem.cxx:69
TSystem::fMaxrfd
Int_t fMaxrfd
Definition: TSystem.h:281
TString::Tokenize
TObjArray * Tokenize(const TString &delim) const
This function is used to isolate sequential tokens in a TString.
Definition: TString.cxx:2219
TOrdCollection.h
TSystem::SendBuf
virtual int SendBuf(int sock, const void *buffer, int length)
Send a buffer headed by a length indicator.
Definition: TSystem.cxx:2431
TClassTable.h
TSystem::SetDynamicPath
virtual void SetDynamicPath(const char *pathname)
Set the dynamic path to a new value.
Definition: TSystem.cxx:1802
TSystem::GetObjExt
virtual const char * GetObjExt() const
Get the object file extension.
Definition: TSystem.cxx:4005
TSystem::SetIncludePath
virtual void SetIncludePath(const char *includePath)
IncludePath should contain the list of compiler flags to indicate where to find user defined header f...
Definition: TSystem.cxx:4174
TSystem::CompileMacro
virtual int CompileMacro(const char *filename, Option_t *opt="", const char *library_name="", const char *build_dir="", UInt_t dirmode=0)
This method compiles and loads a shared library containing the code from the file "filename".
Definition: TSystem.cxx:2834
TSystem::~TSystem
virtual ~TSystem()
Delete the OS interface.
Definition: TSystem.cxx:137
TString::Chop
TString & Chop()
Definition: TString.h:679
TSystem::RedirectOutput
virtual Int_t RedirectOutput(const char *name, const char *mode="a", RedirectHandle_t *h=nullptr)
Redirect standard output (stdout, stderr) to the specified file.
Definition: TSystem.cxx:1711
SysInfo_t
Definition: TSystem.h:150
TSystem.h
TString::kTrailing
@ kTrailing
Definition: TString.h:267
TSystem::RecvRaw
virtual int RecvRaw(int sock, void *buffer, int length, int flag)
Receive exactly length bytes into buffer.
Definition: TSystem.cxx:2403
h
#define h(i)
Definition: RSha256.hxx:106
size
size_t size(const MatrixT &matrix)
retrieve the size of a square matrix
TObject::SetBit
void SetBit(UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f.
Definition: TObject.cxx:696
TSystem::fAclicProperties
Int_t fAclicProperties
Definition: TSystem.h:319
FileStat_t::fMode
Int_t fMode
Definition: TSystem.h:127
TSystem::GetPid
virtual int GetPid()
Get process id.
Definition: TSystem.cxx:708
TSystem::fBuildCompiler
TString fBuildCompiler
Definition: TSystem.h:303
kWritePermission
@ kWritePermission
Definition: TSystem.h:46
FileStat_t::fSize
Long64_t fSize
Definition: TSystem.h:130
TSystem::fListLibs
TString fListLibs
Definition: TSystem.h:300
TObjArray::GetEntriesFast
Int_t GetEntriesFast() const
Definition: TObjArray.h:64
TSystem::fSignalHandler
TSeqCollection * fSignalHandler
Definition: TSystem.h:295
TSystem::SetObjExt
virtual void SetObjExt(const char *objExt)
Set object files extension, should be either .o, .obj, etc.
Definition: TSystem.cxx:4224
a
auto * a
Definition: textangle.C:12
TSystem::ClosePipe
virtual int ClosePipe(FILE *pipe)
Close the pipe.
Definition: TSystem.cxx:672
TString::Remove
TString & Remove(Ssiz_t pos)
Definition: TString.h:673
TSystem::AnnounceUnixService
virtual int AnnounceUnixService(int port, int backlog)
Announce unix domain service.
Definition: TSystem.cxx:2367
TSystem::GetCpuInfo
virtual int GetCpuInfo(CpuInfo_t *info, Int_t sampleTime=1000) const
Returns cpu load average and load info into the CpuInfo_t structure.
Definition: TSystem.cxx:2473
TNamed
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
TSystem::InnerLoop
virtual void InnerLoop()
Inner event loop.
Definition: TSystem.cxx:401
TSystem::RecvBuf
virtual int RecvBuf(int sock, void *buffer, int length)
Receive a buffer headed by a length indicator.
Definition: TSystem.cxx:2422
kFALSE
const Bool_t kFALSE
Definition: RtypesCore.h:101
TString::Append
TString & Append(const char *cs)
Definition: TString.h:564
TSystem::Exec
virtual Int_t Exec(const char *shellcmd)
Execute a command.
Definition: TSystem.cxx:654
MemInfo_t
Definition: TSystem.h:179
ROOT::R::function
void function(const Char_t *name_, T fun, const Char_t *docstring=0)
Definition: RExports.h:151
Long_t
long Long_t
Definition: RtypesCore.h:54
TSystem::SetSockOpt
virtual int SetSockOpt(int sock, int kind, int val)
Set socket option.
Definition: TSystem.cxx:2440
TTime
Basic time type with millisecond precision.
Definition: TTime.h:27
kS_IXOTH
@ kS_IXOTH
Definition: TSystem.h:112
TString::First
Ssiz_t First(char c) const
Find first occurrence of a character c.
Definition: TString.cxx:520
TTimer::Remove
void Remove()
Definition: TTimer.h:85
TSystem::NotifyApplicationCreated
virtual void NotifyApplicationCreated()
Hook to tell TSystem that the TApplication object has been created.
Definition: TSystem.cxx:312
ELogFacility
ELogFacility
Definition: TSystem.h:66
TSystem::Rename
virtual int Rename(const char *from, const char *to)
Rename a file.
Definition: TSystem.cxx:1348
TSystem::fFlagsDebug
TString fFlagsDebug
Definition: TSystem.h:308
TSystem::GetWorkingDirectory
virtual std::string GetWorkingDirectory() const
Return working directory.
Definition: TSystem.cxx:878
TSystem::RemoveFileHandler
virtual TFileHandler * RemoveFileHandler(TFileHandler *fh)
Remove a file handler from the list of file handlers.
Definition: TSystem.cxx:565
TProcessEventTimer::ProcessEvents
Bool_t ProcessEvents()
Process events if timer did time out.
Definition: TSystem.cxx:90
TApplication::StartIdleing
virtual void StartIdleing()
extract_docstrings.module
module
Definition: extract_docstrings.py:39
gApplication
R__EXTERN TApplication * gApplication
Definition: TApplication.h:166
StrDup
char * StrDup(const char *str)
Duplicate the string str.
Definition: TString.cxx:2512
TSystem::SetFPEMask
virtual Int_t SetFPEMask(Int_t mask=kDefaultMask)
Set which conditions trigger a floating point exception.
Definition: TSystem.cxx:643
gDebug
Int_t gDebug
Definition: TROOT.cxx:590
TSystem::GetEffectiveUid
virtual Int_t GetEffectiveUid()
Returns the effective user id.
Definition: TSystem.cxx:1568
TSystem::fBeepFreq
Int_t fBeepFreq
Definition: TSystem.h:287
TSystem::Select
virtual Int_t Select(TList *active, Long_t timeout)
Select on active file descriptors (called by TMonitor).
Definition: TSystem.cxx:446
TString::Insert
TString & Insert(Ssiz_t pos, const char *s)
Definition: TString.h:649
TSystem::fOnExitList
TSeqCollection * fOnExitList
Definition: TSystem.h:298
TString::BeginsWith
Bool_t BeginsWith(const char *s, ECaseCompare cmp=kExact) const
Definition: TString.h:615
TSystem::LoadAllLibraries
virtual UInt_t LoadAllLibraries()
Load all libraries known to ROOT via the rootmap system.
Definition: TSystem.cxx:1966
TNamed::TNamed
TNamed()
Definition: TNamed.h:36
TSystem::Now
virtual TTime Now()
Get current time in milliseconds since 0:00 Jan 1 1995.
Definition: TSystem.cxx:464
TSystem::HostName
virtual const char * HostName()
Return the system's host name.
Definition: TSystem.cxx:304
TSystem::SigAlarmInterruptsSyscalls
virtual void SigAlarmInterruptsSyscalls(Bool_t)
Definition: TSystem.h:330
TSystem::fSigcnt
Int_t fSigcnt
Definition: TSystem.h:283
TObject::AbstractMethod
void AbstractMethod(const char *method) const
Use this method to implement an "abstract" method that you don't want to leave purely abstract.
Definition: TObject.cxx:935
TSystem::ExpandPathName
virtual Bool_t ExpandPathName(TString &path)
Expand a pathname getting rid of special shell characters like ~.
Definition: TSystem.cxx:1272
TSystem::Sleep
virtual void Sleep(UInt_t milliSec)
Sleep milliSec milli seconds.
Definition: TSystem.cxx:438
TSystem::EAclicMode
EAclicMode
Definition: TSystem.h:269
ENDTRY
#define ENDTRY
Definition: TException.h:69
TSystem::CloseConnection
virtual void CloseConnection(int sock, Bool_t force=kFALSE)
Close socket connection.
Definition: TSystem.cxx:2394
TSystem::fBuildNode
TString fBuildNode
Definition: TSystem.h:306
TSystem::AddDynamicPath
virtual void AddDynamicPath(const char *pathname)
Add a new directory to the dynamic path.
Definition: TSystem.cxx:1783
line
TLine * line
Definition: entrylistblock_figure1.C:235
ROOT_RELEASE
#define ROOT_RELEASE
Definition: RVersion.h:17
TSystem::CleanCompiledMacros
virtual void CleanCompiledMacros()
Remove the shared libs produced by the CompileMacro() function.
Definition: TSystem.cxx:4348
TVirtualMutex.h
TObject::Warning
virtual void Warning(const char *method, const char *msgfmt,...) const
Issue warning message.
Definition: TObject.cxx:879
TSystem::AddSignalHandler
virtual void AddSignalHandler(TSignalHandler *sh)
Add a signal handler to list of system signal handlers.
Definition: TSystem.cxx:533
TUrl
This class represents a WWW compatible URL.
Definition: TUrl.h:33
TSystem::Beep
void Beep(Int_t freq=-1, Int_t duration=-1, Bool_t setDefault=kFALSE)
Beep for duration milliseconds with a tone of frequency freq.
Definition: TSystem.cxx:325
void
typedef void((*Func_t)())
TSystem::GetUid
virtual Int_t GetUid(const char *user=nullptr)
Returns the user's id. If user = 0, returns current user's id.
Definition: TSystem.cxx:1558
TSystem::RemoveStdExceptionHandler
virtual TStdExceptionHandler * RemoveStdExceptionHandler(TStdExceptionHandler *eh)
Remove an exception handler from list of exception handlers.
Definition: TSystem.cxx:622
TSystem::kFlatBuildDir
@ kFlatBuildDir
Definition: TSystem.h:271
TObject::kInvalidObject
@ kInvalidObject
if object ctor succeeded but object should not be used
Definition: TObject.h:68
TTimer::IsSync
Bool_t IsSync() const
Definition: TTimer.h:80
unsigned int
TSystem::GetGroupInfo
virtual UserGroup_t * GetGroupInfo(Int_t gid)
Returns all group info in the UserGroup_t structure.
Definition: TSystem.cxx:1621
TSystem::fBuildCompilerVersionStr
TString fBuildCompilerVersionStr
Definition: TSystem.h:305
TSystem::Umask
virtual int Umask(Int_t mask)
Set the process file creation mode mask.
Definition: TSystem.cxx:1513
TRegexp
Regular expression class.
Definition: TRegexp.h:31
TOrdCollectionIter
Iterator of ordered collection.
Definition: TOrdCollection.h:99
TSystem::GetGid
virtual Int_t GetGid(const char *group=nullptr)
Returns the group's id. If group = 0, returns current user's group.
Definition: TSystem.cxx:1577
THashList.h
TString::Index
Ssiz_t Index(const char *pat, Ssiz_t i=0, ECaseCompare cmp=kExact) const
Definition: TString.h:639
TROOT::GetEtcDir
static const TString & GetEtcDir()
Get the sysconfig directory in the installation. Static utility function.
Definition: TROOT.cxx:2964
Printf
void Printf(const char *fmt,...)
FileStat_t::fIno
Long_t fIno
Definition: TSystem.h:126
TUrl::GetProtocol
const char * GetProtocol() const
Definition: TUrl.h:64
TSystem::AddLinkedLibs
virtual void AddLinkedLibs(const char *linkedLib)
Add linkedLib to already set linked libs.
Definition: TSystem.cxx:4150
TSystem::fMaxwfd
Int_t fMaxwfd
Definition: TSystem.h:282
TOrdCollectionIter::Next
TObject * Next()
Return next object in collection.
Definition: TOrdCollection.cxx:502
TSystem::Getenv
virtual const char * Getenv(const char *env)
Get environment variable.
Definition: TSystem.cxx:1661
R__LOCKGUARD2
#define R__LOCKGUARD2(mutex)
Definition: TVirtualMutex.h:106
TSystem::fBuildArch
TString fBuildArch
Definition: TSystem.h:302
proto
const char * proto
Definition: civetweb.c:16604
EAccessMode
EAccessMode
Definition: TSystem.h:43
TSystem::Syslog
virtual void Syslog(ELogLevel level, const char *mess)
Send mess to syslog daemon.
Definition: TSystem.cxx:1682
TString::CompareTo
int CompareTo(const char *cs, ECaseCompare cmp=kExact) const
Compare a string to char *cs2.
Definition: TString.cxx:439
TString::IsNull
Bool_t IsNull() const
Definition: TString.h:407
TSystem::GetAclicMode
virtual EAclicMode GetAclicMode() const
AclicMode indicates whether the library should be built in debug mode or optimized.
Definition: TSystem.cxx:3931
TSystem::GetBuildCompiler
virtual const char * GetBuildCompiler() const
Return the build compiler.
Definition: TSystem.cxx:3867
TSystem::fInControl
Bool_t fInControl
Definition: TSystem.h:290
TSystem::TempDirectory
virtual const char * TempDirectory() const
Return a user configured or systemwide directory to create temporary files in.
Definition: TSystem.cxx:1480
TSystem::OpenDirectory
virtual void * OpenDirectory(const char *name)
Open a directory. Returns 0 if directory does not exist.
Definition: TSystem.cxx:835
FoundationUtils.hxx
The file contains utilities which are foundational and could be used across the core component of ROO...
TPluginManager.h
TSystem::Exit
virtual void Exit(int code, Bool_t mode=kTRUE)
Exit the application.
Definition: TSystem.cxx:717
TObject.h
TObjArray.h
TSystem::kDebug
@ kDebug
Definition: TSystem.h:269
TSystem::Abort
virtual void Abort(int code=0)
Abort the application.
Definition: TSystem.cxx:725
TSystem::UnixPathName
virtual const char * UnixPathName(const char *unixpathname)
Convert from a local pathname to a Unix pathname.
Definition: TSystem.cxx:1061
TSystem::GetMakeSharedLib
virtual const char * GetMakeSharedLib() const
Return the command line use to make a shared library.
Definition: TSystem.cxx:3940
TSystem::Unsetenv
virtual void Unsetenv(const char *name)
Unset environment variable.
Definition: TSystem.cxx:1653
TTimer::fTimeout
Bool_t fTimeout
Definition: TTimer.h:56
TInterpreter.h
Info
void Info(const char *location, const char *msgfmt,...)
Use this function for informational messages.
Definition: TError.cxx:220
R_ISDIR
Bool_t R_ISDIR(Int_t mode)
Definition: TSystem.h:115
file
Definition: file.py:1
TEnv
The TEnv class reads config files, by default named .rootrc.
Definition: TEnv.h:125
gSystemMutex
TVirtualMutex * gSystemMutex
Definition: TSystem.cxx:108
TSystem::AddFileHandler
virtual void AddFileHandler(TFileHandler *fh)
Add a file handler to the list of system file handlers.
Definition: TSystem.cxx:555
TROOT::GetLibDir
static const TString & GetLibDir()
Get the library directory in the installation. Static utility function.
Definition: TROOT.cxx:2933
TSystem::Closelog
virtual void Closelog()
Close connection to system log daemon.
Definition: TSystem.cxx:1690
TSystem::GetDirEntry
virtual const char * GetDirEntry(void *dirp)
Get a directory entry. Returns 0 if no more entries.
Definition: TSystem.cxx:852
TUrl::GetHost
const char * GetHost() const
Definition: TUrl.h:67
TObject
Mother of all ROOT objects.
Definition: TObject.h:37
TApplication::StopIdleing
virtual void StopIdleing()
TSystem::GetLinkedLibraries
virtual const char * GetLinkedLibraries()
Get list of shared libraries loaded at the start of the executable.
Definition: TSystem.cxx:2124
kFileExists
@ kFileExists
Definition: TSystem.h:44
UserGroup_t
Definition: TSystem.h:138
name
char name[80]
Definition: TGX11.cxx:110
TSystem::fMakeSharedLib
TString fMakeSharedLib
Definition: TSystem.h:316
kS_IXGRP
@ kS_IXGRP
Definition: TSystem.h:108
extension
const char * extension
Definition: civetweb.c:7793
TSystem::GetErrno
static Int_t GetErrno()
Static function returning system error number.
Definition: TSystem.cxx:261
TSystem::GetSockOpt
virtual int GetSockOpt(int sock, int kind, int *val)
Get socket option.
Definition: TSystem.cxx:2449
TEnvRec::GetValue
const char * GetValue() const
Definition: TEnv.h:111
TSystem::GetSockName
virtual TInetAddress GetSockName(int sock)
Get Internet Protocol (IP) address of host and port #.
Definition: TSystem.cxx:2313
TFileHandler
Definition: TSysEvtHandler.h:65
TSystem::Symlink
virtual int Symlink(const char *from, const char *to)
Create a symbolic link from file1 to file2.
Definition: TSystem.cxx:1366
genreflex::verbose
bool verbose
Definition: rootcling_impl.cxx:133
TSystem::fSoExt
TString fSoExt
Definition: TSystem.h:313
TSystem::fBeepDuration
Int_t fBeepDuration
Definition: TSystem.h:288
kMaxInt
const Int_t kMaxInt
Definition: RtypesCore.h:112
TSystem::ConcatFileName
virtual char * ConcatFileName(const char *dir, const char *name)
Concatenate a directory and a file name. User must delete returned string.
Definition: TSystem.cxx:1069
TROOT::GetBinDir
static const TString & GetBinDir()
Get the binary directory in the installation. Static utility function.
Definition: TROOT.cxx:2912
I
#define I(x, y, z)
TException.h
TIter
Definition: TCollection.h:233
TSystem::GetFPEMask
virtual Int_t GetFPEMask()
Return the bitmap of conditions that trigger a floating point exception.
Definition: TSystem.cxx:633
TVersionCheck.h
CpuInfo_t
Definition: TSystem.h:165
TSystem::DispatchOneEvent
virtual void DispatchOneEvent(Bool_t pendingOnly=kFALSE)
Dispatch a single event.
Definition: TSystem.cxx:430
TSystem::DoBeep
virtual void DoBeep(Int_t=-1, Int_t=-1) const
Definition: TSystem.h:332
TSystem::AcceptConnection
virtual int AcceptConnection(int sock)
Accept a connection.
Definition: TSystem.cxx:2385
TSystem::fMakeExe
TString fMakeExe
Definition: TSystem.h:317
TNamed::GetName
virtual const char * GetName() const
Returns name of object.
Definition: TNamed.h:47
TSystem::IgnoreSignal
virtual void IgnoreSignal(ESignals sig, Bool_t ignore=kTRUE)
If ignore is true ignore the specified signal, else restore previous behaviour.
Definition: TSystem.cxx:594
R__WRITE_LOCKGUARD
#define R__WRITE_LOCKGUARD(mutex)
Definition: TVirtualRWMutex.h:163
R__AddPath
static void R__AddPath(TString &target, const TString &path)
Definition: TSystem.cxx:2568
TSystem::GetDynamicPath
virtual const char * GetDynamicPath()
Return the dynamic path (used to find shared libraries).
Definition: TSystem.cxx:1791
TTimer::TurnOn
virtual void TurnOn()
Add the timer to the system timer list.
Definition: TTimer.cxx:241
TSystem::AnnounceTcpService
virtual int AnnounceTcpService(int port, Bool_t reuse, int backlog, int tcpwindowsize=-1)
Announce TCP/IP service.
Definition: TSystem.cxx:2349
ProcInfo_t::~ProcInfo_t
virtual ~ProcInfo_t()
Definition: TSystem.cxx:73
TSystem::ListLibraries
virtual void ListLibraries(const char *regexp="")
List all loaded shared libraries.
Definition: TSystem.cxx:2069
kReadPermission
@ kReadPermission
Definition: TSystem.h:47
TSystem::ListSymbols
virtual void ListSymbols(const char *module, const char *re="")
List symbols in a shared library.
Definition: TSystem.cxx:2060
TSystem::SetDisplay
virtual void SetDisplay()
Set DISPLAY environment variable based on utmp entry. Only for UNIX.
Definition: TSystem.cxx:232
TEnv::GetTable
THashList * GetTable() const
Definition: TEnv.h:141
TSystem::SetMakeExe
virtual void SetMakeExe(const char *directives)
Directives has the same syntax as the argument of SetMakeSharedLib but is used to create an executabl...
Definition: TSystem.cxx:4073
kMAXPATHLEN
@ kMAXPATHLEN
Definition: Rtypes.h:60
TSystem::Run
virtual void Run()
System event loop.
Definition: TSystem.cxx:344
TTimer::Reset
void Reset()
Reset the timer.
Definition: TTimer.cxx:157
TSystem::GetFsInfo
virtual int GetFsInfo(const char *path, Long_t *id, Long_t *bsize, Long_t *blocks, Long_t *bfree)
Get info about a file system: fs type, block size, number of blocks, number of free blocks.
Definition: TSystem.cxx:1470
TInetAddress
This class represents an Internet Protocol (IP) address.
Definition: TInetAddress.h:36
TUrl::GetUser
const char * GetUser() const
Definition: TUrl.h:65
TCollection::FindObject
virtual TObject * FindObject(const char *name) const
Find an object in this collection using its name.
Definition: TCollection.cxx:312
TSystem::GetEffectiveGid
virtual Int_t GetEffectiveGid()
Returns the effective group id.
Definition: TSystem.cxx:1587
TSystem::HomeDirectory
virtual const char * HomeDirectory(const char *userName=nullptr)
Return the user's home directory.
Definition: TSystem.cxx:886
TSystem::Unload
virtual void Unload(const char *module)
Unload a shared library.
Definition: TSystem.cxx:2048
TSystem::GetMemInfo
virtual int GetMemInfo(MemInfo_t *info) const
Returns ram and swap memory usage info into the MemInfo_t structure.
Definition: TSystem.cxx:2483
TMath::E
constexpr Double_t E()
Base of natural log:
Definition: TMath.h:96
TUrl.h
TSystem::GetServiceByName
virtual int GetServiceByName(const char *service)
Get port # of internet service.
Definition: TSystem.cxx:2322
TSystem::OpenPipe
virtual FILE * OpenPipe(const char *command, const char *mode)
Open a pipe.
Definition: TSystem.cxx:663
TSystem::ProcessEvents
virtual Bool_t ProcessEvents()
Process pending events (GUI, timers, sockets).
Definition: TSystem.cxx:417
ThreadLocalStorage.h
TSystem::RemoveSignalHandler
virtual TSignalHandler * RemoveSignalHandler(TSignalHandler *sh)
Remove a signal handler from list of signal handlers.
Definition: TSystem.cxx:543
TStdExceptionHandler
Definition: TSysEvtHandler.h:172
Strip
char * Strip(const char *str, char c=' ')
Strip leading and trailing c (blanks by default) from a string.
Definition: TString.cxx:2476
TSystem::SendRaw
virtual int SendRaw(int sock, const void *buffer, int length, int flag)
Send exactly length bytes from buffer.
Definition: TSystem.cxx:2413
TSystem::SetMakeSharedLib
virtual void SetMakeSharedLib(const char *directives)
Directives should contain the description on how to compile and link a shared lib.
Definition: TSystem.cxx:4125
TSystem::GetBuildCompilerVersion
virtual const char * GetBuildCompilerVersion() const
Return the build compiler version.
Definition: TSystem.cxx:3875
TList
A doubly linked list.
Definition: TList.h:44
TSystem::ResetSignals
virtual void ResetSignals()
Reset signals handlers to previous behaviour.
Definition: TSystem.cxx:585
TObject::SetUniqueID
virtual void SetUniqueID(UInt_t uid)
Set the unique object id.
Definition: TObject.cxx:707
gROOT
#define gROOT
Definition: TROOT.h:406
int
TSystem::GetProcInfo
virtual int GetProcInfo(ProcInfo_t *info) const
Returns cpu and memory used by this process into the ProcInfo_t structure.
Definition: TSystem.cxx:2493
FileStat_t::fDev
Long_t fDev
Definition: TSystem.h:125
Error
void Error(const char *location, const char *msgfmt,...)
Use this function in case an error occurred.
Definition: TError.cxx:187
TSystem::SetErrorStr
void SetErrorStr(const char *errstr)
Set the system error string.
Definition: TSystem.cxx:242
TError.h
TSystem::IsFileInIncludePath
virtual Bool_t IsFileInIncludePath(const char *name, char **fullpath=nullptr)
Return true if 'name' is a file that can be found in the ROOT include path or the current directory.
Definition: TSystem.cxx:965
AssignAndDelete
void AssignAndDelete(TString &target, char *tobedeleted)
Definition: TSystem.cxx:2501
TSystem::AddIncludePath
virtual void AddIncludePath(const char *includePath)
Add a directory to the already set include path.
Definition: TSystem.cxx:4139