Abstract base class defining a generic interface to the underlying Operating System.

This is not an ABC in the strict sense of the (C++) word. For every member function there is an implementation (often not more than a call to AbstractMethod() which prints a warning saying that the method should be overridden in a derived class), which allows a simple partial implementation for new OS'es.

Definition at line 248 of file TSystem.h.

Public Types
enum	EAclicMode { kDefault, kDebug, kOpt }

enum	EAclicProperties { kFlatBuildDir = BIT(0) }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }

enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

Public Member Functions
	TSystem (const char name="Generic", const char title="Generic System")
	Create a new OS interface. More...

virtual	~TSystem ()
	Delete the OS interface. More...

virtual void	Abort (int code=0)
	Abort the application. More...

virtual int	AcceptConnection (int sock)
	Accept a connection. More...

virtual Bool_t	AccessPathName (const char *path, EAccessMode mode=kFileExists)
	Returns FALSE if one can access a file using the specified access mode. More...

virtual void	AddDynamicPath (const char *pathname)
	Add a new directory to the dynamic path. More...

virtual void	AddFileHandler (TFileHandler *fh)
	Add a file handler to the list of system file handlers. More...

virtual void	AddIncludePath (const char *includePath)
	Add includePath to the already set include path. More...

virtual void	AddLinkedLibs (const char *linkedLib)
	Add linkedLib to already set linked libs. More...

virtual void	AddSignalHandler (TSignalHandler *sh)
	Add a signal handler to list of system signal handlers. More...

virtual void	AddStdExceptionHandler (TStdExceptionHandler *eh)
	Add an exception handler to list of system exception handlers. More...

virtual void	AddTimer (TTimer *t)
	Add timer to list of system timers. More...

virtual int	AnnounceTcpService (int port, Bool_t reuse, int backlog, int tcpwindowsize=-1)
	Announce TCP/IP service. More...

virtual int	AnnounceUdpService (int port, int backlog)
	Announce UDP service. More...

virtual int	AnnounceUnixService (int port, int backlog)
	Announce unix domain service. More...

virtual int	AnnounceUnixService (const char *sockpath, int backlog)
	Announce unix domain service. More...

virtual const char *	BaseName (const char *pathname)
	Base name of a file name. Base name of /user/root is root. More...

void	Beep (Int_t freq=-1, Int_t duration=-1, Bool_t setDefault=kFALSE)
	Beep for duration milliseconds with a tone of frequency freq. More...

Bool_t	cd (const char *path)

virtual Bool_t	ChangeDirectory (const char *path)
	Change directory. More...

virtual int	Chmod (const char *file, UInt_t mode)
	Set the file permission bits. Returns -1 in case or error, 0 otherwise. More...

virtual void	CleanCompiledMacros ()
	Remove the shared libs produced by the CompileMacro() function. More...

virtual void	CloseConnection (int sock, Bool_t force=kFALSE)
	Close socket connection. More...

virtual void	Closelog ()
	Close connection to system log daemon. More...

virtual int	ClosePipe (FILE *pipe)
	Close the pipe. More...

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". More...

virtual char *	ConcatFileName (const char dir, const char name)
	Concatenate a directory and a file name. User must delete returned string. More...

virtual int	CopyFile (const char from, const char to, Bool_t overwrite=kFALSE)
	Copy a file. More...

virtual const char *	DirName (const char *pathname)
	Return the directory name in pathname. More...

virtual void	DispatchOneEvent (Bool_t pendingOnly=kFALSE)
	Dispatch a single event. More...

char *	DynamicPathName (const char *lib, Bool_t quiet=kFALSE)
	Find a dynamic library called lib using the system search paths. More...

virtual Func_t	DynFindSymbol (const char module, const char entry)
	Find specific entry point in specified library. More...

virtual Int_t	Exec (const char *shellcmd)
	Execute a command. More...

virtual void	Exit (int code, Bool_t mode=kTRUE)
	Exit the application. More...

virtual void	ExitLoop ()
	Exit from event loop. More...

virtual Bool_t	ExpandPathName (TString &path)
	Expand a pathname getting rid of special shell characters like ~. More...

virtual char *	ExpandPathName (const char *path)
	Expand a pathname getting rid of special shell characters like ~. More...

virtual const char *	FindDynamicLibrary (TString &lib, Bool_t quiet=kFALSE)
	Find a dynamic library using the system search paths. More...

virtual const char *	FindFile (const char *search, TString &file, EAccessMode mode=kFileExists)
	Find location of file in a search path. More...

virtual void	FreeDirectory (void *dirp)
	Free a directory. More...

virtual EAclicMode	GetAclicMode () const
	AclicMode indicates whether the library should be built in debug mode or optimized. More...

virtual Int_t	GetAclicProperties () const
	Return the ACLiC properties field. More...

void	GetBeepDefaults (Int_t &freq, Int_t &duration) const

virtual const char *	GetBuildArch () const
	Return the build architecture. More...

virtual const char *	GetBuildCompiler () const
	Return the build compiler. More...

virtual const char *	GetBuildCompilerVersion () const
	Return the build compiler version. More...

virtual const char *	GetBuildDir () const
	Return the path of the build directory. More...

virtual const char *	GetBuildNode () const
	Return the build node name. More...

virtual int	GetCpuInfo (CpuInfo_t *info, Int_t sampleTime=1000) const
	Returns cpu load average and load info into the CpuInfo_t structure. More...

virtual const char *	GetDirEntry (void *dirp)
	Get a directory entry. Returns 0 if no more entries. More...

virtual void *	GetDirPtr () const

virtual const char *	GetDynamicPath ()
	Return the dynamic path (used to find shared libraries). More...

virtual Int_t	GetEffectiveGid ()
	Returns the effective group id. More...

virtual Int_t	GetEffectiveUid ()
	Returns the effective user id. More...

virtual const char *	Getenv (const char *env)
	Get environment variable. More...

virtual const char *	GetError ()
	Return system error string. More...

const char *	GetErrorStr () const

virtual const char *	GetFlagsDebug () const
	Return the debug flags. More...

virtual const char *	GetFlagsOpt () const
	Return the optimization flags. More...

virtual Int_t	GetFPEMask ()
	Return the bitmap of conditions that trigger a floating point exception. More...

virtual TString	GetFromPipe (const char *command)
	Execute command and return output in TString. More...

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. More...

virtual Int_t	GetGid (const char *group=0)
	Returns the group's id. If group = 0, returns current user's group. More...

virtual UserGroup_t *	GetGroupInfo (Int_t gid)
	Returns all group info in the UserGroup_t structure. More...

virtual UserGroup_t *	GetGroupInfo (const char *group=0)
	Returns all group info in the UserGroup_t structure. More...

virtual std::string	GetHomeDirectory (const char *userName=0) const
	Return the user's home directory. More...

virtual TInetAddress	GetHostByName (const char *server)
	Get Internet Protocol (IP) address of host. More...

virtual const char *	GetIncludePath ()
	Get the list of include path. More...

virtual const char *	GetLibraries (const char regexp="", const char option="", Bool_t isRegexp=kTRUE)
	Return a space separated list of loaded shared libraries. More...

virtual const char *	GetLinkdefSuffix () const
	Return the linkdef suffix chosen by the user for ACLiC. More...

virtual const char *	GetLinkedLibs () const
	Return the list of library linked to this executable. More...

virtual TSeqCollection *	GetListOfFileHandlers () const

virtual TSeqCollection *	GetListOfSignalHandlers () const

virtual TSeqCollection *	GetListOfStdExceptionHandlers () const

virtual TSeqCollection *	GetListOfTimers () const

virtual const char *	GetMakeExe () const
	Return the command line use to make an executable. More...

virtual const char *	GetMakeSharedLib () const
	Return the command line use to make a shared library. More...

virtual int	GetMemInfo (MemInfo_t *info) const
	Returns ram and swap memory usage info into the MemInfo_t structure. More...

virtual const char *	GetObjExt () const
	Get the object file extension. More...

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. More...

int	GetPathInfo (const char path, Long_t id, Long64_t size, Long_t flags, Long_t *modtime)
	Get info about a file: id, size, flags, modification time. More...

virtual int	GetPathInfo (const char *path, FileStat_t &buf)
	Get info about a file. More...

virtual TInetAddress	GetPeerName (int sock)
	Get Internet Protocol (IP) address of remote host and port #. More...

virtual int	GetPid ()
	Get process id. More...

virtual int	GetProcInfo (ProcInfo_t *info) const
	Returns cpu and memory used by this process into the ProcInfo_t structure. More...

virtual int	GetServiceByName (const char *service)
	Get port # of internet service. More...

virtual char *	GetServiceByPort (int port)
	Get name of internet service. More...

virtual TInetAddress	GetSockName (int sock)
	Get Internet Protocol (IP) address of host and port #. More...

virtual int	GetSockOpt (int sock, int kind, int *val)
	Get socket option. More...

virtual const char *	GetSoExt () const
	Get the shared library extension. More...

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 structure. More...

virtual Int_t	GetUid (const char *user=0)
	Returns the user's id. If user = 0, returns current user's id. More...

virtual UserGroup_t *	GetUserInfo (Int_t uid)
	Returns all user info in the UserGroup_t structure. More...

virtual UserGroup_t *	GetUserInfo (const char *user=0)
	Returns all user info in the UserGroup_t structure. More...

virtual TList *	GetVolumes (Option_t *) const

virtual std::string	GetWorkingDirectory () const
	Return working directory. More...

virtual const char *	HomeDirectory (const char *userName=0)
	Return the user's home directory. More...

virtual const char *	HostName ()
	Return the system's host name. More...

virtual void	IgnoreInterrupt (Bool_t ignore=kTRUE)
	If ignore is true ignore the interrupt signal, else restore previous behaviour. More...

virtual void	IgnoreSignal (ESignals sig, Bool_t ignore=kTRUE)
	If ignore is true ignore the specified signal, else restore previous behaviour. More...

Bool_t	InControl () const

virtual Bool_t	Init ()
	Initialize the OS interface. More...

virtual void	InnerLoop ()
	Inner event loop. More...

virtual Bool_t	IsAbsoluteFileName (const char *dir)
	Return true if dir is an absolute pathname. More...

virtual Bool_t	IsFileInIncludePath (const char name, char *fullpath=0)
	Return true if 'name' is a file that can be found in the ROOT include path or the current directory. More...

virtual Bool_t	IsPathLocal (const char *path)
	Returns TRUE if the url in 'path' points to the local file system. More...

virtual int	Link (const char from, const char to)
	Create a link from file1 to file2. More...

virtual void	ListLibraries (const char *regexp="")
	List all loaded shared libraries. More...

virtual void	ListSymbols (const char module, const char re="")
	List symbols in a shared library. More...

virtual int	Load (const char module, const char entry="", Bool_t system=kFALSE)
	Load a shared library. More...

virtual int	MakeDirectory (const char *name)
	Make a directory. More...

virtual int	mkdir (const char *name, Bool_t recursive=kFALSE)
	Make a file system directory. More...

virtual Long_t	NextTimeOut (Bool_t mode)
	Time when next timer of mode (synchronous=kTRUE or asynchronous=kFALSE) will time-out (in ms). More...

virtual void	NotifyApplicationCreated ()
	Hook to tell TSystem that the TApplication object has been created. More...

virtual TTime	Now ()
	Get current time in milliseconds since 0:00 Jan 1 1995. More...

virtual int	OpenConnection (const char server, int port, int tcpwindowsize=-1, const char protocol="tcp")
	Open a connection to another host. More...

virtual void *	OpenDirectory (const char *name)
	Open a directory. Returns 0 if directory does not exist. More...

virtual void	Openlog (const char *name, Int_t options, ELogFacility facility)
	Open connection to system log daemon. More...

virtual FILE *	OpenPipe (const char command, const char mode)
	Open a pipe. More...

virtual const char *	PrependPathName (const char *dir, TString &name)
	Concatenate a directory and a file name. More...

virtual Bool_t	ProcessEvents ()
	Process pending events (GUI, timers, sockets). More...

const char *	pwd ()

virtual int	RecvBuf (int sock, void *buffer, int length)
	Receive a buffer headed by a length indicator. More...

virtual int	RecvRaw (int sock, void *buffer, int length, int flag)
	Receive exactly length bytes into buffer. More...

virtual Int_t	RedirectOutput (const char name, const char mode="a", RedirectHandle_t *h=0)
	Redirect standard output (stdout, stderr) to the specified file. More...

virtual TFileHandler *	RemoveFileHandler (TFileHandler *fh)
	Remove a file handler from the list of file handlers. More...

void	RemoveOnExit (TObject *obj)
	Objects that should be deleted on exit of the OS interface. More...

virtual TSignalHandler *	RemoveSignalHandler (TSignalHandler *sh)
	Remove a signal handler from list of signal handlers. More...

virtual TStdExceptionHandler *	RemoveStdExceptionHandler (TStdExceptionHandler *eh)
	Remove an exception handler from list of exception handlers. More...

virtual TTimer *	RemoveTimer (TTimer *t)
	Remove timer from list of system timers. More...

virtual int	Rename (const char from, const char to)
	Rename a file. More...

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, else restore previous behaviour. More...

virtual void	ResetSignals ()
	Reset signals handlers to previous behaviour. More...

virtual void	ResetTimer (TTimer *)

virtual void	Run ()
	System event loop. More...

virtual Int_t	Select (TList *active, Long_t timeout)
	Select on active file descriptors (called by TMonitor). More...

virtual Int_t	Select (TFileHandler *fh, Long_t timeout)
	Select on active file descriptors (called by TMonitor). More...

virtual int	SendBuf (int sock, const void *buffer, int length)
	Send a buffer headed by a length indicator. More...

virtual int	SendRaw (int sock, const void *buffer, int length, int flag)
	Send exactly length bytes from buffer. More...

virtual void	SetAclicMode (EAclicMode mode)
	AclicMode indicates whether the library should be built in debug mode or optimized. More...

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. More...

virtual void	SetDisplay ()
	Set DISPLAY environment variable based on utmp entry. Only for UNIX. More...

virtual void	SetDynamicPath (const char *pathname)
	Set the dynamic path to a new value. More...

virtual void	Setenv (const char name, const char value)
	Set environment variable. More...

void	SetErrorStr (const char *errstr)
	Set the system error string. More...

virtual void	SetFlagsDebug (const char *)
	FlagsDebug should contain the options to pass to the C++ compiler in order to compile the library in debug mode. More...

virtual void	SetFlagsOpt (const char *)
	FlagsOpt should contain the options to pass to the C++ compiler in order to compile the library in optimized mode. More...

virtual Int_t	SetFPEMask (Int_t mask=kDefaultMask)
	Set which conditions trigger a floating point exception. More...

virtual void	SetIncludePath (const char *includePath)
	IncludePath should contain the list of compiler flags to indicate where to find user defined header files. More...

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 additional linkdef information that ACLiC should used to produce the dictionary. More...

virtual void	SetLinkedLibs (const char *linkedLibs)
	LinkedLibs should contain the library directory and list of libraries needed to recreate the current executable. More...

virtual void	SetMakeExe (const char *directives)
	Directives has the same syntax as the argument of SetMakeSharedLib but is used to create an executable. More...

virtual void	SetMakeSharedLib (const char *directives)
	Directives should contain the description on how to compile and link a shared lib. More...

virtual void	SetObjExt (const char *objExt)
	Set object files extension, should be either .o, .obj, etc. More...

virtual void	SetProgname (const char *name)
	Set the application name (from command line, argv[0]) and copy it in gProgName. More...

virtual int	SetSockOpt (int sock, int kind, int val)
	Set socket option. More...

virtual void	SetSoExt (const char *soExt)
	Set shared library extension, should be either .so, .sl, .a, .dll, etc. More...

virtual void	ShowOutput (RedirectHandle_t *h)
	Display the content associated with the redirection described by the opaque handle 'h'. More...

virtual void	Sleep (UInt_t milliSec)
	Sleep milliSec milli seconds. More...

virtual TString	SplitAclicMode (const char *filename, TString &mode, TString &args, TString &io) const
	This method split a filename of the form: ~~~ {.cpp} [path/]macro.C[+\|++[k\|f\|g\|O\|c\|s\|d\|v\|-]][(args)]. More...

virtual void	StackTrace ()
	Print a stack trace. More...

virtual int	Symlink (const char from, const char to)
	Create a symbolic link from file1 to file2. More...

virtual void	Syslog (ELogLevel level, const char *mess)
	Send mess to syslog daemon. More...

virtual const char *	TempDirectory () const
	Return a user configured or systemwide directory to create temporary files in. More...

virtual FILE *	TempFileName (TString &base, const char *dir=0)
	Create a secure temporary file by appending a unique 6 letter string to base. More...

virtual int	Umask (Int_t mask)
	Set the process file creation mode mask. More...

virtual const char *	UnixPathName (const char *unixpathname)
	Convert from a Unix pathname to a local pathname. More...

virtual int	Unlink (const char *name)
	Unlink, i.e. remove, a file. More...

virtual void	Unload (const char *module)
	Unload a shared library. More...

virtual void	Unsetenv (const char *name)
	Unset environment variable. More...

virtual int	Utime (const char *file, Long_t modtime, Long_t actime)
	Set the a files modification and access times. More...

virtual char *	Which (const char search, const char file, EAccessMode mode=kFileExists)
	Find location of file in a search path. More...

virtual const char *	WorkingDirectory ()
	Return working directory. More...

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TString &name, const TString &title)

	TNamed (const TNamed &named)
	TNamed copy ctor. More...

virtual	~TNamed ()

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

virtual void	Copy (TObject &named) const
	Copy this to obj. More...

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

virtual Bool_t	IsSortable () const

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...

virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...

virtual void	SetName (const char *name)
	Set the name of the TNamed. More...

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title). More...

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor. More...

	TObject (const TObject &object)
	TObject copy ctor. More...

virtual	~TObject ()
	TObject destructor. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...

virtual Option_t *	GetOption () const

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

void	InvertBit (UInt_t f)

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

void	SetBit (UInt_t f)

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

Static Public Member Functions
static Int_t	GetErrno ()
	Static function returning system error number. More...

static void	ResetErrno ()
	Static function resetting system error number. More...

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

Protected Member Functions
virtual Bool_t	ConsistentWith (const char path, void dirptr=0)
	Check consistency of this helper with the one required by 'path' or 'dirptr'. More...

virtual void	DoBeep (Int_t=-1, Int_t=-1) const

virtual const char *	ExpandFileName (const char *fname)
	Expand a pathname getting rid of special shell characters like ~. More...

virtual Bool_t	ExpandFileName (TString &fname)
	Expand a pathname getting rid of special shell characters like ~. More...

TSystem *	FindHelper (const char path, void dirptr=0)
	Create helper TSystem to handle file and directory operations that might be special for remote file access, like via rfiod or rootd. More...

TString &	GetLastErrorString ()
	Return the thread local storage for the custom last error message. More...

const TString &	GetLastErrorString () const
	Return the thread local storage for the custom last error message. More...

virtual const char *	GetLinkedLibraries ()
	Get list of shared libraries loaded at the start of the executable. More...

virtual void	SigAlarmInterruptsSyscalls (Bool_t)

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

void	MakeZombie ()

Static Protected Member Functions
static const char *	StripOffProto (const char path, const char proto)

Protected Attributes
EAclicMode	fAclicMode

Int_t	fAclicProperties

Int_t	fBeepDuration

Int_t	fBeepFreq

TString	fBuildArch

TString	fBuildCompiler

TString	fBuildCompilerVersion

TString	fBuildDir

TString	fBuildNode

TSeqCollection *	fCompiled

Bool_t	fDone

TSeqCollection *	fFileHandler

TString	fFlagsDebug

TString	fFlagsOpt

TSeqCollection *	fHelpers

TString	fHostname

TString	fIncludePath

Bool_t	fInControl

Bool_t	fInsideNotify

Int_t	fLevel

TString	fLinkdefSuffix

TString	fLinkedLibs

TString	fListLibs

TString	fListPaths

TString	fMakeExe

TString	fMakeSharedLib

Int_t	fMaxrfd

Int_t	fMaxwfd

Int_t	fNfd
	Signals that were trapped. More...

TString	fObjExt

TSeqCollection *	fOnExitList

TFdSet *	fReadmask

TFdSet *	fReadready
	Files that should be checked for write events. More...

Int_t	fSigcnt

TSeqCollection *	fSignalHandler

TFdSet *	fSignals
	Files with writes waiting. More...

TString	fSoExt

TSeqCollection *	fStdExceptionHandler

TSeqCollection *	fTimers

TString	fWdpath

TFdSet *	fWritemask
	Files that should be checked for read events. More...

TFdSet *	fWriteready
	Files with reads waiting. More...

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Member Functions
	TSystem (const TSystem &)

Bool_t	ExpandFileName (const char fname, char xname, const int kBufSize)
	Private method for pathname expansion. More...

TSystem &	operator= (const TSystem &)

#include <TSystem.h>

Inheritance diagram for TSystem:

[legend]

Member Enumeration Documentation

◆ EAclicMode

enum TSystem::EAclicMode

Enumerator
kDefault
kDebug
kOpt

Definition at line 251 of file TSystem.h.

◆ EAclicProperties

enum TSystem::EAclicProperties

Enumerator
kFlatBuildDir

Definition at line 252 of file TSystem.h.

Constructor & Destructor Documentation

◆ TSystem() [1/2]

TSystem::TSystem ( const TSystem & )

private

◆ TSystem() [2/2]

TSystem::TSystem	(	const char *	name = `"Generic"`,
		const char *	title = `"Generic System"`
	)

Create a new OS interface.

Definition at line 107 of file TSystem.cxx.

◆ ~TSystem()

TSystem::~TSystem ( )

virtual

Delete the OS interface.

Definition at line 145 of file TSystem.cxx.

Member Function Documentation

◆ Abort()

void TSystem::Abort ( int code = 0 )

virtual

Abort the application.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 731 of file TSystem.cxx.

◆ AcceptConnection()

int TSystem::AcceptConnection ( int sock )

virtual

Accept a connection.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2357 of file TSystem.cxx.

◆ AccessPathName()

Bool_t TSystem::AccessPathName	(	const char *	path,
		EAccessMode	mode = `kFileExists`
	)

virtual

Returns FALSE if one can access a file using the specified access mode.

The file name must not contain any special shell characters line ~ or $, in those cases first call ExpandPathName(). Attention, bizarre convention of return value!!

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TDCacheSystem, TXNetSystem, TAlienSystem, TRFIOSystem, THDFSSystem, TGFALSystem, and TChirpSystem.

Definition at line 1272 of file TSystem.cxx.

◆ AddDynamicPath()

void TSystem::AddDynamicPath ( const char * pathname )

virtual

Add a new directory to the dynamic path.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1756 of file TSystem.cxx.

◆ AddFileHandler()

void TSystem::AddFileHandler ( TFileHandler * h )

virtual

Add a file handler to the list of system file handlers.

Only adds the handler if it is not already in the list of file handlers.

Reimplemented in TWinNTSystem, TUnixSystem, and TMacOSXSystem.

Definition at line 561 of file TSystem.cxx.

◆ AddIncludePath()

void TSystem::AddIncludePath ( const char * includePath )

virtual

Add includePath to the already set include path.

Definition at line 3972 of file TSystem.cxx.

◆ AddLinkedLibs()

void TSystem::AddLinkedLibs ( const char * linkedLib )

virtual

Add linkedLib to already set linked libs.

Definition at line 3983 of file TSystem.cxx.

◆ AddSignalHandler()

void TSystem::AddSignalHandler ( TSignalHandler * h )

virtual

Add a signal handler to list of system signal handlers.

Only adds the handler if it is not already in the list of signal handlers.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 539 of file TSystem.cxx.

◆ AddStdExceptionHandler()

void TSystem::AddStdExceptionHandler ( TStdExceptionHandler * eh )

virtual

Add an exception handler to list of system exception handlers.

Only adds the handler if it is not already in the list of exception handlers.

Definition at line 618 of file TSystem.cxx.

◆ AddTimer()

void TSystem::AddTimer ( TTimer * t )

virtual

Add timer to list of system timers.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 478 of file TSystem.cxx.

◆ AnnounceTcpService()

int TSystem::AnnounceTcpService	(	int	port,
		Bool_t	reuse,
		int	backlog,
		int	tcpwindowsize = `-1`
	)

virtual

Announce TCP/IP service.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2321 of file TSystem.cxx.

◆ AnnounceUdpService()

int TSystem::AnnounceUdpService	(	int	port,
		int	backlog
	)

virtual

Announce UDP service.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2330 of file TSystem.cxx.

◆ AnnounceUnixService() [1/2]

int TSystem::AnnounceUnixService	(	int	port,
		int	backlog
	)

virtual

Announce unix domain service.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2339 of file TSystem.cxx.

◆ AnnounceUnixService() [2/2]

int TSystem::AnnounceUnixService	(	const char *	sockpath,
		int	backlog
	)

virtual

Announce unix domain service.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2348 of file TSystem.cxx.

◆ BaseName()

const char * TSystem::BaseName ( const char * pathname )

virtual

Base name of a file name. Base name of /user/root is root.

Reimplemented in TWinNTSystem.

Definition at line 931 of file TSystem.cxx.

◆ Beep()

void TSystem::Beep	(	Int_t	freq = `-1`,
		Int_t	duration = `-1`,
		Bool_t	setDefault = `kFALSE`
	)

Beep for duration milliseconds with a tone of frequency freq.

Defaults to printing the \a character to stdout. If freq or duration is <0 respectively, use default value. If setDefault is set, only set the frequency and duration as new defaults, but don't beep. If default freq or duration is <0, never beep (silence)

Definition at line 331 of file TSystem.cxx.

◆ cd()

Bool_t TSystem::cd ( const char * path )

inline

Definition at line 404 of file TSystem.h.

◆ ChangeDirectory()

Bool_t TSystem::ChangeDirectory ( const char * path )

virtual

Change directory.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 859 of file TSystem.cxx.

◆ Chmod()

int TSystem::Chmod	(	const char *	file,
		UInt_t	mode
	)

virtual

Set the file permission bits. Returns -1 in case or error, 0 otherwise.

Reimplemented in TWinNTSystem, TUnixSystem, TAlienSystem, and TChirpSystem.

Definition at line 1478 of file TSystem.cxx.

◆ CleanCompiledMacros()

void TSystem::CleanCompiledMacros ( )

virtual

Remove the shared libs produced by the CompileMacro() function.

Definition at line 4156 of file TSystem.cxx.

◆ CloseConnection()

void TSystem::CloseConnection	(	int	sock,
		Bool_t	force = `kFALSE`
	)

virtual

Close socket connection.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2366 of file TSystem.cxx.

◆ Closelog()

void TSystem::Closelog ( )

virtual

Close connection to system log daemon.

Reimplemented in TUnixSystem.

Definition at line 1663 of file TSystem.cxx.

◆ ClosePipe()

int TSystem::ClosePipe ( FILE * pipe )

virtual

Close the pipe.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 678 of file TSystem.cxx.

◆ CompileMacro()

int TSystem::CompileMacro	(	const char *	filename,
		Option_t *	opt = `""`,
		const char *	library_specified = `""`,
		const char *	build_dir = `""`,
		UInt_t	dirmode = `0`
	)

virtual

This method compiles and loads a shared library containing the code from the file "filename".

The return value is true (1) in case of success and false (0) in case of error.

The possible options are:

k : keep the shared library after the session end.
f : force recompilation.
g : compile with debug symbol
O : optimized the code
c : compile only, do not attempt to load the library.
s : silence all informational output
v : output all information output
d : debug ACLiC, keep all the output files.
- : if buildir is set, use a flat structure (see buildir below)

If library_specified is specified, CompileMacro generates the file "library_specified".soext where soext is the shared library extension for the current platform.

If build_dir is specified, it is used as an alternative 'root' for the generation of the shared library. The library is stored in a sub-directories of 'build_dir' including the full pathname of the script unless a flat directory structure is requested ('-' option). With the '-' option the libraries are created directly in the directory 'build_dir'; in particular this means that 2 scripts with the same name in different source directory will over-write each other's library. See also TSystem::SetBuildDir.

If dirmode is not zero and we need to create the target directory, the file mode bit will be change to 'dirmode' using chmod.

If library_specified is not specified, CompileMacro generate a default name for library by taking the name of the file "filename" but replacing the dot before the extension by an underscore and by adding the shared library extension for the current platform. For example on most platform, hsimple.cxx will generate hsimple_cxx.so

It uses the directive fMakeSharedLibs to create a shared library. If loading the shared library fails, it tries to output a list of missing symbols by creating an executable (on some platforms like OSF, this does not HAVE to be an executable) containing the script. It uses the directive fMakeExe to do so. For both directives, before passing them to TSystem::Exec, it expands the variables $SourceFiles, $SharedLib, $LibName, $IncludePath, $LinkedLibs, $DepLibs, $ExeName and $ObjectFiles. See SetMakeSharedLib() for more information on those variables.

This method is used to implement the following feature:

Synopsis:

The purpose of this addition is to allow the user to use an external compiler to create a shared library from its C++ macro (scripts). Currently in order to execute a script, a user has to type at the root prompt

.X myfunc.C(arg1,arg2)

We allow them to type:

.X myfunc.C++(arg1,arg2)

or

.X myfunc.C+(arg1,arg2)

In which case an external compiler will be called to create a shared library. This shared library will then be loaded and the function myfunc will be called with the two arguments. With '++' the shared library is always recompiled. With '+' the shared library is recompiled only if it does not exist yet or the macro file is newer than the shared library.

Of course the + and ++ notation is supported in similar way for .x and .L.

Through the function TSystem::SetMakeSharedLib(), the user will be able to indicate, with shell commands, how to build a shared library (a good default will be provided). The most common change, namely where to find header files, will be available through the function TSystem::SetIncludePath(). A good default will be provided so that a typical user session should be at most:

root[1] gSystem->SetIncludePath("-I$ROOTSYS/include
-I$HOME/mypackage/include");
root[2] .x myfunc.C++(10,20);

The user may sometimes try to compile a script before it has loaded all the needed shared libraries. In this case we want to be helpfull and output a list of the unresolved symbols. So if the loading of the created shared library fails, we will try to build a executable that contains the script. The linker should then output a list of missing symbols.

To support this we provide a TSystem::SetMakeExe() function, that sets the directive telling how to create an executable. The loader will need to be informed of all the libraries available. The information about the libraries that has been loaded by .L and TSystem::Load() is accesible to the script compiler. However, the information about the libraries that have been selected at link time by the application builder (like the root libraries for root.exe) are not available and need to be explicitly listed in fLinkedLibs (either by default or by a call to TSystem::SetLinkedLibs()).

To simplify customization we could also add to the .rootrc support for the variables

Unix.*.Root.IncludePath:     -I$ROOTSYS/include
WinNT.*.Root.IncludePath:    -I%ROOTSYS%/include
Unix.*.Root.LinkedLibs:      -L$ROOTSYS/lib -lBase ....
WinNT.*.Root.LinkedLibs:     %ROOTSYS%/lib/*.lib msvcrt.lib ....

And also support for MakeSharedLibs() and MakeExe().

(the ... have to be replaced by the actual values and are here only to shorten this comment).

Definition at line 2811 of file TSystem.cxx.

◆ ConcatFileName()

char * TSystem::ConcatFileName	(	const char *	dir,
		const char *	name
	)

virtual

Concatenate a directory and a file name. User must delete returned string.

Definition at line 1051 of file TSystem.cxx.

◆ ConsistentWith()

Bool_t TSystem::ConsistentWith	(	const char *	path,
		void *	dirptr = `0`
	)

protectedvirtual

Check consistency of this helper with the one required by 'path' or 'dirptr'.

Reimplemented in TNetSystem, TXNetSystem, TNetXNGSystem, and TDavixSystem.

Definition at line 801 of file TSystem.cxx.

◆ CopyFile()

int TSystem::CopyFile	(	const char *	from,
		const char *	to,
		Bool_t	overwrite = `kFALSE`
	)

virtual

Copy a file.

If overwrite is true and file already exists the file will be overwritten. Returns 0 when successful, -1 in case of file open failure, -2 in case the file already exists and overwrite was false and -3 in case of error during copy.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1317 of file TSystem.cxx.

◆ DirName()

const char * TSystem::DirName ( const char * pathname )

virtual

Return the directory name in pathname.

DirName of /user/root is /user. In case no dirname is specified "." is returned.

Reimplemented in TWinNTSystem.

Definition at line 1003 of file TSystem.cxx.

◆ DispatchOneEvent()

void TSystem::DispatchOneEvent ( Bool_t pendingOnly = kFALSE )

virtual

Dispatch a single event.

Reimplemented in TWinNTSystem, TUnixSystem, and TMacOSXSystem.

Definition at line 436 of file TSystem.cxx.

◆ DoBeep()

virtual void TSystem::DoBeep	(	Int_t	= `-1`,
		Int_t	= `-1`
	)		const

inlineprotectedvirtual

Reimplemented in TWinNTSystem.

Definition at line 313 of file TSystem.h.

◆ DynamicPathName()

char * TSystem::DynamicPathName	(	const char *	lib,
		Bool_t	quiet = `kFALSE`
	)

Find a dynamic library called lib using the system search paths.

Appends known extensions if needed. Returned string must be deleted by the user!

Definition at line 1953 of file TSystem.cxx.

◆ DynFindSymbol()

Func_t TSystem::DynFindSymbol	(	const char *	module,
		const char *	entry
	)

virtual

Find specific entry point in specified library.

Specify "*" for lib to search in all libraries.

Reimplemented in TUnixSystem.

Definition at line 1977 of file TSystem.cxx.

◆ Exec()

int TSystem::Exec ( const char * shellcmd )

virtual

Execute a command.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 660 of file TSystem.cxx.

◆ Exit()

void TSystem::Exit	(	int	code,
		Bool_t	mode = `kTRUE`
	)

virtual

Exit the application.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 723 of file TSystem.cxx.

◆ ExitLoop()

void TSystem::ExitLoop ( )

virtual

Exit from event loop.

Reimplemented in TWinNTSystem.

Definition at line 399 of file TSystem.cxx.

◆ ExpandFileName() [1/3]

const char * TSystem::ExpandFileName ( const char * fname )

protectedvirtual

Expand a pathname getting rid of special shell characters like ~.

$, etc. For Unix/Win32 compatibility use instead of $XXX when using environment variables in a pathname. If compatibility is not an issue you can use on Unix directly $XXX. This is a protected function called from the OS specific system classes, like TUnixSystem and TWinNTSystem. Returns the expanded filename or 0 in case of error.

Definition at line 1078 of file TSystem.cxx.

◆ ExpandFileName() [2/3]

Bool_t TSystem::ExpandFileName ( TString & fname )

protectedvirtual

Expand a pathname getting rid of special shell characters like ~.

$, etc. This function is analogous to ExpandFileName(const char *), except that it receives a TString reference of the pathname to be expanded. Returns kTRUE in case of error and kFALSE otherwise.

Definition at line 1096 of file TSystem.cxx.

◆ ExpandFileName() [3/3]

Bool_t TSystem::ExpandFileName	(	const char *	fname,
		char *	xname,
		const int	kBufSize
	)

private

Private method for pathname expansion.

Returns kTRUE in case of error and kFALSE otherwise.

Definition at line 1112 of file TSystem.cxx.

◆ ExpandPathName() [1/2]

Bool_t TSystem::ExpandPathName ( TString & path )

virtual

Expand a pathname getting rid of special shell characters like ~.

$, etc. For Unix/Win32 compatibility use instead of $XXX when using environment variables in a pathname. If compatibility is not an issue you can use on Unix directly $XXX.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1250 of file TSystem.cxx.

◆ ExpandPathName() [2/2]

char * TSystem::ExpandPathName ( const char * path )

virtual

Expand a pathname getting rid of special shell characters like ~.

$, etc. For Unix/Win32 compatibility use instead of $XXX when using environment variables in a pathname. If compatibility is not an issue you can use on Unix directly $XXX. The user must delete returned string.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1261 of file TSystem.cxx.

◆ FindDynamicLibrary()

const char * TSystem::FindDynamicLibrary	(	TString &	lib,
		Bool_t	quiet = `kFALSE`
	)

virtual

Find a dynamic library using the system search paths.

lib will be updated to contain the absolute filename if found. Returns lib if found, or NULL if a library called lib was not found. This function does not open the library.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1967 of file TSystem.cxx.

◆ FindFile()

const char * TSystem::FindFile	(	const char *	search,
		TString &	file,
		EAccessMode	mode = `kFileExists`
	)

virtual

Find location of file in a search path.

Return value points to TString for compatibility with Which(const char *, const char *, EAccessMode). Returns 0 in case file is not found.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1508 of file TSystem.cxx.

◆ FindHelper()

TSystem * TSystem::FindHelper	(	const char *	path,
		void *	dirptr = `0`
	)

protected

Create helper TSystem to handle file and directory operations that might be special for remote file access, like via rfiod or rootd.

Definition at line 751 of file TSystem.cxx.

◆ FreeDirectory()

void TSystem::FreeDirectory ( void * dirp )

virtual

Free a directory.

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TDCacheSystem, TXNetSystem, TRFIOSystem, THDFSSystem, TGFALSystem, TNetXNGSystem, TDavixSystem, TChirpSystem, and TAlienSystem.

Definition at line 842 of file TSystem.cxx.

◆ GetAclicMode()

TSystem::EAclicMode TSystem::GetAclicMode ( ) const

virtual

AclicMode indicates whether the library should be built in debug mode or optimized.

The values are:

TSystem::kDefault : compile the same as the current ROOT
TSystem::kDebug : compiled in debug mode
TSystem::kOpt : optimized the library

Definition at line 3779 of file TSystem.cxx.

◆ GetAclicProperties()

Int_t TSystem::GetAclicProperties ( ) const

virtual

Return the ACLiC properties field.

See EAclicProperties for details on the semantic of each bit.

Definition at line 3707 of file TSystem.cxx.

◆ GetBeepDefaults()

void TSystem::GetBeepDefaults	(	Int_t &	freq,
		Int_t &	duration
	)		const

inline

Definition at line 342 of file TSystem.h.

◆ GetBuildArch()

const char * TSystem::GetBuildArch ( ) const

virtual

Return the build architecture.

Definition at line 3715 of file TSystem.cxx.

◆ GetBuildCompiler()

const char * TSystem::GetBuildCompiler ( ) const

virtual

Return the build compiler.

Definition at line 3723 of file TSystem.cxx.

◆ GetBuildCompilerVersion()

const char * TSystem::GetBuildCompilerVersion ( ) const

virtual

Return the build compiler version.

Definition at line 3731 of file TSystem.cxx.

◆ GetBuildDir()

const char * TSystem::GetBuildDir ( ) const

virtual

Return the path of the build directory.

Definition at line 3747 of file TSystem.cxx.

◆ GetBuildNode()

const char * TSystem::GetBuildNode ( ) const

virtual

Return the build node name.

Definition at line 3739 of file TSystem.cxx.

◆ GetCpuInfo()

int TSystem::GetCpuInfo	(	CpuInfo_t *	info,
		Int_t	sampleTime = `1000`
	)		const

virtual

Returns cpu load average and load info into the CpuInfo_t structure.

Returns -1 in case of error, 0 otherwise. Use sampleTime to set the interval over which the CPU load will be measured, in ms (default 1000).

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2445 of file TSystem.cxx.

◆ GetDirEntry()

const char * TSystem::GetDirEntry ( void * dirp )

virtual

Get a directory entry. Returns 0 if no more entries.

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TDCacheSystem, TXNetSystem, TRFIOSystem, THDFSSystem, TGFALSystem, TNetXNGSystem, TDavixSystem, TChirpSystem, and TAlienSystem.

Definition at line 850 of file TSystem.cxx.

◆ GetDirPtr()

virtual void* TSystem::GetDirPtr ( ) const

inlinevirtual

Reimplemented in TWebSystem, TNetSystem, TDCacheSystem, TXNetSystem, TRFIOSystem, TGFALSystem, and TAlienSystem.

Definition at line 397 of file TSystem.h.

◆ GetDynamicPath()

const char * TSystem::GetDynamicPath ( )

virtual

Return the dynamic path (used to find shared libraries).

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1764 of file TSystem.cxx.

◆ GetEffectiveGid()

Int_t TSystem::GetEffectiveGid ( )

virtual

Returns the effective group id.

The effective group id corresponds to the set id bit on the file being executed.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1560 of file TSystem.cxx.

◆ GetEffectiveUid()

Int_t TSystem::GetEffectiveUid ( )

virtual

Returns the effective user id.

The effective id corresponds to the set id bit on the file being executed.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1541 of file TSystem.cxx.

◆ Getenv()

const char * TSystem::Getenv ( const char * env )

virtual

Get environment variable.

Reimplemented in TUnixSystem, and TWinNTSystem.

Definition at line 1634 of file TSystem.cxx.

◆ GetErrno()

Int_t TSystem::GetErrno ( )

static

Static function returning system error number.

Definition at line 267 of file TSystem.cxx.

◆ GetError()

const char * TSystem::GetError ( )

virtual

Return system error string.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 257 of file TSystem.cxx.

◆ GetErrorStr()

const char* TSystem::GetErrorStr ( ) const

inline

Definition at line 333 of file TSystem.h.

◆ GetFlagsDebug()

const char * TSystem::GetFlagsDebug ( ) const

virtual

Return the debug flags.

Definition at line 3759 of file TSystem.cxx.

◆ GetFlagsOpt()

const char * TSystem::GetFlagsOpt ( ) const

virtual

Return the optimization flags.

Definition at line 3767 of file TSystem.cxx.

◆ GetFPEMask()

Int_t TSystem::GetFPEMask ( )

virtual

Return the bitmap of conditions that trigger a floating point exception.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 639 of file TSystem.cxx.

◆ GetFromPipe()

TString TSystem::GetFromPipe ( const char * command )

virtual

Execute command and return output in TString.

Definition at line 687 of file TSystem.cxx.

◆ GetFsInfo()

int TSystem::GetFsInfo	(	const char *	path,
		Long_t *	id,
		Long_t *	bsize,
		Long_t *	blocks,
		Long_t *	bfree
	)

virtual

Get info about a file system: fs type, block size, number of blocks, number of free blocks.

Reimplemented in TWinNTSystem, TUnixSystem, TAlienSystem, and TChirpSystem.

Definition at line 1444 of file TSystem.cxx.

◆ GetGid()

Int_t TSystem::GetGid ( const char * group = 0 )

virtual

Returns the group's id. If group = 0, returns current user's group.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1550 of file TSystem.cxx.

◆ GetGroupInfo() [1/2]

UserGroup_t * TSystem::GetGroupInfo ( Int_t gid )

virtual

Returns all group info in the UserGroup_t structure.

The only active fields in the UserGroup_t structure for this call are:

fGid and fGroup The returned structure must be deleted by the user. In case of error 0 is returned.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1594 of file TSystem.cxx.

◆ GetGroupInfo() [2/2]

UserGroup_t * TSystem::GetGroupInfo ( const char * group = 0 )

virtual

Returns all group info in the UserGroup_t structure.

The only active fields in the UserGroup_t structure for this call are:

fGid and fGroup If group = 0, returns current user's group. The returned structure must be deleted by the user. In case of error 0 is returned.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1607 of file TSystem.cxx.

◆ GetHomeDirectory()

std::string TSystem::GetHomeDirectory ( const char * userName = 0 ) const

virtual

Return the user's home directory.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 892 of file TSystem.cxx.

◆ GetHostByName()

TInetAddress TSystem::GetHostByName ( const char * server )

virtual

Get Internet Protocol (IP) address of host.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2267 of file TSystem.cxx.

◆ GetIncludePath()

const char * TSystem::GetIncludePath ( )

virtual

Get the list of include path.

Definition at line 3805 of file TSystem.cxx.

◆ GetLastErrorString() [1/2]

TString & TSystem::GetLastErrorString ( )

protected

Return the thread local storage for the custom last error message.

Definition at line 2043 of file TSystem.cxx.

◆ GetLastErrorString() [2/2]

const TString & TSystem::GetLastErrorString ( ) const

protected

Return the thread local storage for the custom last error message.

Definition at line 2052 of file TSystem.cxx.

◆ GetLibraries()

const char * TSystem::GetLibraries	(	const char *	regexp = `""`,
		const char *	options = `""`,
		Bool_t	isRegexp = `kTRUE`
	)

virtual

Return a space separated list of loaded shared libraries.

Regexp is a wildcard expression, see TRegexp::MakeWildcard. This list is of a format suitable for a linker, i.e it may contain -Lpathname and/or -lNameOfLib. Option can be any of:

S: shared libraries loaded at the start of the executable, because they were specified on the link line.
D: shared libraries dynamically loaded after the start of the program. For MacOS only:
L: list the .dylib rather than the .so (this is intended for linking) This options is not the default

Reimplemented in TWinNTSystem.

Definition at line 2079 of file TSystem.cxx.

◆ GetLinkdefSuffix()

const char * TSystem::GetLinkdefSuffix ( ) const

virtual

Return the linkdef suffix chosen by the user for ACLiC.

See TSystem::CompileMacro for more details.

Definition at line 3825 of file TSystem.cxx.

◆ GetLinkedLibraries()

const char * TSystem::GetLinkedLibraries ( )

protectedvirtual

Get list of shared libraries loaded at the start of the executable.

Returns 0 in case list cannot be obtained or in case of error.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2061 of file TSystem.cxx.

◆ GetLinkedLibs()

const char * TSystem::GetLinkedLibs ( ) const

virtual

Return the list of library linked to this executable.

See TSystem::CompileMacro for more details.

Definition at line 3816 of file TSystem.cxx.

◆ GetListOfFileHandlers()

virtual TSeqCollection* TSystem::GetListOfFileHandlers ( ) const

inlinevirtual

Definition at line 364 of file TSystem.h.

◆ GetListOfSignalHandlers()

virtual TSeqCollection* TSystem::GetListOfSignalHandlers ( ) const

inlinevirtual

Definition at line 361 of file TSystem.h.

◆ GetListOfStdExceptionHandlers()

virtual TSeqCollection* TSystem::GetListOfStdExceptionHandlers ( ) const

inlinevirtual

Definition at line 367 of file TSystem.h.

◆ GetListOfTimers()

virtual TSeqCollection* TSystem::GetListOfTimers ( ) const

inlinevirtual

Definition at line 375 of file TSystem.h.

◆ GetMakeExe()

const char * TSystem::GetMakeExe ( ) const

virtual

Return the command line use to make an executable.

See TSystem::CompileMacro for more details.

Definition at line 3797 of file TSystem.cxx.

◆ GetMakeSharedLib()

const char * TSystem::GetMakeSharedLib ( ) const

virtual

Return the command line use to make a shared library.

See TSystem::CompileMacro for more details.

Definition at line 3788 of file TSystem.cxx.

◆ GetMemInfo()

int TSystem::GetMemInfo ( MemInfo_t * info ) const

virtual

Returns ram and swap memory usage info into the MemInfo_t structure.

Returns -1 in case of error, 0 otherwise.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2455 of file TSystem.cxx.

◆ GetObjExt()

const char * TSystem::GetObjExt ( ) const

virtual

Get the object file extension.

Definition at line 3845 of file TSystem.cxx.

◆ GetPathInfo() [1/3]

int TSystem::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.

Id is (statbuf.st_dev << 24) + statbuf.st_ino
Size is the file size
Flags is file type: 0 is regular file, bit 0 set executable, bit 1 set directory, bit 2 set special file (socket, fifo, pipe, etc.) Modtime is modification time. The function returns 0 in case of success and 1 if the file could not be stat'ed.

Definition at line 1370 of file TSystem.cxx.

◆ GetPathInfo() [2/3]

int TSystem::GetPathInfo	(	const char *	path,
		Long_t *	id,
		Long64_t *	size,
		Long_t *	flags,
		Long_t *	modtime
	)

Get info about a file: id, size, flags, modification time.

Id is (statbuf.st_dev << 24) + statbuf.st_ino
Size is the file size
Flags is file type: 0 is regular file, bit 0 set executable, bit 1 set directory, bit 2 set special file (socket, fifo, pipe, etc.) Modtime is modification time. The function returns 0 in case of success and 1 if the file could not be stat'ed.

Definition at line 1400 of file TSystem.cxx.

◆ GetPathInfo() [3/3]

int TSystem::GetPathInfo	(	const char *	path,
		FileStat_t &	buf
	)

virtual

Get info about a file.

Info is returned in the form of a FileStat_t structure (see TSystem.h). The function returns 0 in case of success and 1 if the file could not be stat'ed.

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TDCacheSystem, TXNetSystem, TRFIOSystem, THDFSSystem, TGFALSystem, TAlienSystem, TNetXNGSystem, TDavixSystem, and TChirpSystem.

Definition at line 1434 of file TSystem.cxx.

◆ GetPeerName()

TInetAddress TSystem::GetPeerName ( int sock )

virtual

Get Internet Protocol (IP) address of remote host and port #.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2276 of file TSystem.cxx.

◆ GetPid()

int TSystem::GetPid ( )

virtual

Get process id.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 714 of file TSystem.cxx.

◆ GetProcInfo()

int TSystem::GetProcInfo ( ProcInfo_t * info ) const

virtual

Returns cpu and memory used by this process into the ProcInfo_t structure.

Returns -1 in case of error, 0 otherwise.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2465 of file TSystem.cxx.

◆ GetServiceByName()

int TSystem::GetServiceByName ( const char * service )

virtual

Get port # of internet service.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2294 of file TSystem.cxx.

◆ GetServiceByPort()

char * TSystem::GetServiceByPort ( int port )

virtual

Get name of internet service.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2303 of file TSystem.cxx.

◆ GetSockName()

TInetAddress TSystem::GetSockName ( int sock )

virtual

Get Internet Protocol (IP) address of host and port #.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2285 of file TSystem.cxx.

◆ GetSockOpt()

int TSystem::GetSockOpt	(	int	sock,
		int	kind,
		int *	val
	)

virtual

Get socket option.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2421 of file TSystem.cxx.

◆ GetSoExt()

const char * TSystem::GetSoExt ( ) const

virtual

Get the shared library extension.

Definition at line 3837 of file TSystem.cxx.

◆ GetSysInfo()

int TSystem::GetSysInfo ( SysInfo_t * info ) const

virtual

Returns static system info, like OS type, CPU type, number of CPUs RAM size, etc into the SysInfo_t structure.

Returns -1 in case of error, 0 otherwise.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2434 of file TSystem.cxx.

◆ GetUid()

Int_t TSystem::GetUid ( const char * user = 0 )

virtual

Returns the user's id. If user = 0, returns current user's id.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1531 of file TSystem.cxx.

◆ GetUserInfo() [1/2]

UserGroup_t * TSystem::GetUserInfo ( Int_t uid )

virtual

Returns all user info in the UserGroup_t structure.

The returned structure must be deleted by the user. In case of error 0 is returned.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1570 of file TSystem.cxx.

◆ GetUserInfo() [2/2]

UserGroup_t * TSystem::GetUserInfo ( const char * user = 0 )

virtual

Returns all user info in the UserGroup_t structure.

If user = 0, returns current user's id info. The returned structure must be deleted by the user. In case of error 0 is returned.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1581 of file TSystem.cxx.

◆ GetVolumes()

virtual TList* TSystem::GetVolumes ( Option_t * ) const

inlinevirtual

Reimplemented in TWinNTSystem.

Definition at line 435 of file TSystem.h.

◆ GetWorkingDirectory()

std::string TSystem::GetWorkingDirectory ( ) const

virtual

Return working directory.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 876 of file TSystem.cxx.

◆ HomeDirectory()

const char * TSystem::HomeDirectory ( const char * userName = 0 )

virtual

Return the user's home directory.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 884 of file TSystem.cxx.

◆ HostName()

const char * TSystem::HostName ( )

virtual

Return the system's host name.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 310 of file TSystem.cxx.

◆ IgnoreInterrupt()

void TSystem::IgnoreInterrupt ( Bool_t ignore = kTRUE )

virtual

If ignore is true ignore the interrupt signal, else restore previous behaviour.

Typically call ignore interrupt before writing to disk.

Definition at line 609 of file TSystem.cxx.

◆ IgnoreSignal()

void TSystem::IgnoreSignal	(	ESignals	sig,
		Bool_t	ignore = `kTRUE`
	)

virtual

If ignore is true ignore the specified signal, else restore previous behaviour.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 600 of file TSystem.cxx.

◆ InControl()

Bool_t TSystem::InControl ( ) const

inline

Definition at line 349 of file TSystem.h.

◆ Init()

Bool_t TSystem::Init ( )

virtual

Initialize the OS interface.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 189 of file TSystem.cxx.

◆ InnerLoop()

void TSystem::InnerLoop ( )

virtual

Inner event loop.

Definition at line 407 of file TSystem.cxx.

◆ IsAbsoluteFileName()

Bool_t TSystem::IsAbsoluteFileName ( const char * dir )

virtual

Return true if dir is an absolute pathname.

Reimplemented in TWinNTSystem.

Definition at line 948 of file TSystem.cxx.

◆ IsFileInIncludePath()

Bool_t TSystem::IsFileInIncludePath	(	const char *	name,
		char **	fullpath = `0`
	)

virtual

Return true if 'name' is a file that can be found in the ROOT include path or the current directory.

If 'name' contains any ACLiC style information (e.g. trailing +[+][g|O]), it will be striped off 'name'. If fullpath is != 0, the full path to the file is returned in *fullpath, which must be deleted by the caller.

Definition at line 963 of file TSystem.cxx.

◆ IsPathLocal()

Bool_t TSystem::IsPathLocal ( const char * path )

virtual

Returns TRUE if the url in 'path' points to the local file system.

This is used to avoid going through the NIC card for local operations.

Reimplemented in TWinNTSystem, TUnixSystem, TXNetSystem, TNetXNGSystem, and TDavixSystem.

Definition at line 1281 of file TSystem.cxx.

◆ Link()

int TSystem::Link	(	const char *	from,
		const char *	to
	)

virtual

Create a link from file1 to file2.

Reimplemented in TWinNTSystem, TUnixSystem, TChirpSystem, and TAlienSystem.

Definition at line 1335 of file TSystem.cxx.

◆ ListLibraries()

void TSystem::ListLibraries ( const char * regexp = "" )

virtual

List all loaded shared libraries.

Regexp is a wildcard expression, see TRegexp::MakeWildcard.

Reimplemented in TUnixSystem.

Definition at line 2006 of file TSystem.cxx.

◆ ListSymbols()

void TSystem::ListSymbols	(	const char *	module,
		const char *	re = `""`
	)

virtual

List symbols in a shared library.

Reimplemented in TUnixSystem.

Definition at line 1997 of file TSystem.cxx.

◆ Load()

int TSystem::Load	(	const char *	module,
		const char *	entry = `""`,
		Bool_t	system = `kFALSE`
	)

virtual

Load a shared library.

Returns 0 on successful loading, 1 in case lib was already loaded, -1 in case lib does not exist or in case of error and -2 in case of version mismatch. When entry is specified the loaded lib is searched for this entry point (return -1 when entry does not exist, 0 otherwise). When the system flag is kTRUE, the library is considered a permanent system library that should not be unloaded during the course of the session.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1825 of file TSystem.cxx.

◆ MakeDirectory()

int TSystem::MakeDirectory ( const char * name )

virtual

Make a directory.

Returns 0 in case of success and -1 if the directory could not be created (either already exists or illegal path name).

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TDCacheSystem, TXNetSystem, TRFIOSystem, THDFSSystem, TGFALSystem, TDavixSystem, TNetXNGSystem, TChirpSystem, and TAlienSystem.

Definition at line 824 of file TSystem.cxx.

◆ mkdir()

int TSystem::mkdir	(	const char *	name,
		Bool_t	recursive = `kFALSE`
	)

virtual

Make a file system directory.

Returns 0 in case of success and -1 if the directory could not be created (either already exists or illegal path name). If 'recursive' is true, makes parent directories as needed.

Reimplemented in TWinNTSystem, and TAlienSystem.

Definition at line 903 of file TSystem.cxx.

◆ NextTimeOut()

Long_t TSystem::NextTimeOut ( Bool_t mode )

virtual

Time when next timer of mode (synchronous=kTRUE or asynchronous=kFALSE) will time-out (in ms).

Definition at line 501 of file TSystem.cxx.

◆ NotifyApplicationCreated()

void TSystem::NotifyApplicationCreated ( )

virtual

Hook to tell TSystem that the TApplication object has been created.

Reimplemented in TWinNTSystem.

Definition at line 318 of file TSystem.cxx.

◆ Now()

TTime TSystem::Now ( )

virtual

Get current time in milliseconds since 0:00 Jan 1 1995.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 470 of file TSystem.cxx.

◆ OpenConnection()

int TSystem::OpenConnection	(	const char *	server,
		int	port,
		int	tcpwindowsize = `-1`,
		const char *	protocol = `"tcp"`
	)

virtual

Open a connection to another host.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2312 of file TSystem.cxx.

◆ OpenDirectory()

void * TSystem::OpenDirectory ( const char * name )

virtual

Open a directory. Returns 0 if directory does not exist.

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TDCacheSystem, TXNetSystem, TRFIOSystem, THDFSSystem, TGFALSystem, TDavixSystem, TNetXNGSystem, TChirpSystem, and TAlienSystem.

Definition at line 833 of file TSystem.cxx.

◆ Openlog()

void TSystem::Openlog	(	const char *	name,
		Int_t	options,
		ELogFacility	facility
	)

virtual

Open connection to system log daemon.

For the use of the options and facility see the Unix openlog man page.

Reimplemented in TUnixSystem.

Definition at line 1646 of file TSystem.cxx.

◆ OpenPipe()

FILE * TSystem::OpenPipe	(	const char *	command,
		const char *	mode
	)

virtual

Open a pipe.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 669 of file TSystem.cxx.

◆ operator=()

TSystem& TSystem::operator= ( const TSystem & )

private

◆ PrependPathName()

const char * TSystem::PrependPathName	(	const char *	dir,
		TString &	name
	)

virtual

Concatenate a directory and a file name.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1061 of file TSystem.cxx.

◆ ProcessEvents()

Bool_t TSystem::ProcessEvents ( )

virtual

Process pending events (GUI, timers, sockets).

Returns the result of TROOT::IsInterrupted(). The interrupt flag (TROOT::SetInterrupt()) can be set during the handling of the events. This mechanism allows macros running in tight calculating loops to be interrupted by some GUI event (depending on the interval with which this method is called). For example hitting ctrl-c in a canvas will set the interrupt flag.

Reimplemented in TWinNTSystem.

Definition at line 423 of file TSystem.cxx.

◆ pwd()

const char* TSystem::pwd ( )

inline

Definition at line 405 of file TSystem.h.

◆ RecvBuf()

int TSystem::RecvBuf	(	int	sock,
		void *	buffer,
		int	length
	)

virtual

Receive a buffer headed by a length indicator.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2394 of file TSystem.cxx.

◆ RecvRaw()

int TSystem::RecvRaw	(	int	sock,
		void *	buffer,
		int	length,
		int	flag
	)

virtual

Receive exactly length bytes into buffer.

Use opt to receive out-of-band data or to have a peek at what is in the buffer (see TSocket).

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2375 of file TSystem.cxx.

◆ RedirectOutput()

Int_t TSystem::RedirectOutput	(	const char *	name,
		const char *	mode = `"a"`,
		RedirectHandle_t *	h = `0`
	)

virtual

Redirect standard output (stdout, stderr) to the specified file.

If the file argument is 0 the output is set again to stderr, stdout. The second argument specifies whether the output should be added to the file ("a", default) or the file be truncated before ("w"). The implementations of this function save internally the current state into a static structure.

The call can be made reentrant by specifying the opaque structure pointed by 'h', which is filled with the relevant information. The handle 'h' obtained on the first call must then be used in any subsequent call, included ShowOutput, to display the redirected output. Returns 0 on success, -1 in case of error.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1684 of file TSystem.cxx.

◆ RemoveFileHandler()

TFileHandler * TSystem::RemoveFileHandler ( TFileHandler * h )

virtual

Remove a file handler from the list of file handlers.

Returns the handler or 0 if the handler was not in the list of file handlers.

Reimplemented in TWinNTSystem, TUnixSystem, and TMacOSXSystem.

Definition at line 571 of file TSystem.cxx.

◆ RemoveOnExit()

void TSystem::RemoveOnExit ( TObject * obj )

Objects that should be deleted on exit of the OS interface.

Definition at line 299 of file TSystem.cxx.

◆ RemoveSignalHandler()

TSignalHandler * TSystem::RemoveSignalHandler ( TSignalHandler * h )

virtual

Remove a signal handler from list of signal handlers.

Returns the handler or 0 if the handler was not in the list of signal handlers.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 549 of file TSystem.cxx.

◆ RemoveStdExceptionHandler()

TStdExceptionHandler * TSystem::RemoveStdExceptionHandler ( TStdExceptionHandler * eh )

virtual

Remove an exception handler from list of exception handlers.

Returns the handler or 0 if the handler was not in the list of exception handlers.

Definition at line 628 of file TSystem.cxx.

◆ RemoveTimer()

TTimer * TSystem::RemoveTimer ( TTimer * ti )

virtual

Remove timer from list of system timers.

Returns removed timer or 0 if timer was not active.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 488 of file TSystem.cxx.

◆ Rename()

int TSystem::Rename	(	const char *	from,
		const char *	to
	)

virtual

Rename a file.

Reimplemented in TWinNTSystem, TUnixSystem, TChirpSystem, and TAlienSystem.

Definition at line 1326 of file TSystem.cxx.

◆ ResetErrno()

void TSystem::ResetErrno ( )

static

Static function resetting system error number.

Definition at line 283 of file TSystem.cxx.

◆ ResetSignal()

void TSystem::ResetSignal	(	ESignals	sig,
		Bool_t	reset = `kTRUE`
	)

virtual

If reset is true reset the signal handler for the specified signal to the default handler, else restore previous behaviour.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 583 of file TSystem.cxx.

◆ ResetSignals()

void TSystem::ResetSignals ( )

virtual

Reset signals handlers to previous behaviour.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 591 of file TSystem.cxx.

◆ ResetTimer()

virtual void TSystem::ResetTimer ( TTimer * )

inlinevirtual

Reimplemented in TUnixSystem.

Definition at line 378 of file TSystem.h.

◆ Run()

void TSystem::Run ( )

virtual

System event loop.

Definition at line 350 of file TSystem.cxx.

◆ Select() [1/2]

Int_t TSystem::Select	(	TList *	active,
		Long_t	timeout
	)

virtual

Select on active file descriptors (called by TMonitor).

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 452 of file TSystem.cxx.

◆ Select() [2/2]

Int_t TSystem::Select	(	TFileHandler *	fh,
		Long_t	timeout
	)

virtual

Select on active file descriptors (called by TMonitor).

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 460 of file TSystem.cxx.

◆ SendBuf()

int TSystem::SendBuf	(	int	sock,
		const void *	buffer,
		int	length
	)

virtual

Send a buffer headed by a length indicator.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2403 of file TSystem.cxx.

◆ SendRaw()

int TSystem::SendRaw	(	int	sock,
		const void *	buffer,
		int	length,
		int	flag
	)

virtual

Send exactly length bytes from buffer.

Use opt to send out-of-band data (see TSocket).

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2385 of file TSystem.cxx.

◆ SetAclicMode()

void TSystem::SetAclicMode ( EAclicMode mode )

virtual

AclicMode indicates whether the library should be built in debug mode or optimized.

The values are:

TSystem::kDefault : compile the same as the current ROOT
TSystem::kDebug : compiled in debug mode
TSystem::kOpt : optimized the library

Definition at line 3895 of file TSystem.cxx.

◆ SetBuildDir()

void TSystem::SetBuildDir	(	const char *	build_dir,
		Bool_t	isflat = `kFALSE`
	)

virtual

Set the location where ACLiC will create libraries and use as a scratch area.

If isflast is flase, then the libraries are actually stored in sub-directories of 'build_dir' including the full pathname of the script. If the script is location at /full/path/name/macro.C the library will be located at 'build_dir+/full/path/name/macro_C.so' If 'isflat' is true, then no subdirectory is created and the library is created directly in the directory 'build_dir'. Note that in this mode there is a risk than 2 script of the same in different source directory will over-write each other.

Definition at line 3863 of file TSystem.cxx.

◆ SetDisplay()

void TSystem::SetDisplay ( )

virtual

Set DISPLAY environment variable based on utmp entry. Only for UNIX.

Reimplemented in TUnixSystem.

Definition at line 238 of file TSystem.cxx.

◆ SetDynamicPath()

void TSystem::SetDynamicPath ( const char * pathname )

virtual

Set the dynamic path to a new value.

If the value of 'path' is zero, the dynamic path is reset to its default value.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1775 of file TSystem.cxx.

◆ Setenv()

void TSystem::Setenv	(	const char *	name,
		const char *	value
	)

virtual

Set environment variable.

Reimplemented in TUnixSystem, and TWinNTSystem.

Definition at line 1618 of file TSystem.cxx.

◆ SetErrorStr()

void TSystem::SetErrorStr ( const char * errstr )

Set the system error string.

This string will be used by GetError(). To be used in case one does not want or can use the system error string (e.g. because error is generated by a third party POSIX like library that does not use standard errno).

Definition at line 248 of file TSystem.cxx.

◆ SetFlagsDebug()

void TSystem::SetFlagsDebug ( const char * flags )

virtual

FlagsDebug should contain the options to pass to the C++ compiler in order to compile the library in debug mode.

Definition at line 3874 of file TSystem.cxx.

◆ SetFlagsOpt()

void TSystem::SetFlagsOpt ( const char * flags )

virtual

FlagsOpt should contain the options to pass to the C++ compiler in order to compile the library in optimized mode.

Definition at line 3883 of file TSystem.cxx.

◆ SetFPEMask()

Int_t TSystem::SetFPEMask ( Int_t mask = kDefaultMask )

virtual

Set which conditions trigger a floating point exception.

Return the previous set of conditions.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 649 of file TSystem.cxx.

◆ SetIncludePath()

void TSystem::SetIncludePath ( const char * includePath )

virtual

IncludePath should contain the list of compiler flags to indicate where to find user defined header files.

It is used to expand $IncludePath in the directives given to SetMakeSharedLib() and SetMakeExe(), e.g.:

gSystem->SetInclude("-I$ROOTSYS/include -Imydirectory/include");

the default value of IncludePath on Unix is:

"-I$ROOTSYS/include "

and on Windows:

"/I%ROOTSYS%/include "

Definition at line 4007 of file TSystem.cxx.

◆ SetLinkdefSuffix()

void TSystem::SetLinkdefSuffix ( const char * suffix )

virtual

The 'suffix' will be appended to the name of a script loaded by ACLiC and used to locate any eventual additional linkdef information that ACLiC should used to produce the dictionary.

So by default, when doing .L MyScript.cxx, ACLiC will look for a file name MyScript_linkdef and having one of the .h (.hpp, etc.) extensions. If such a file exist, it will be added to the end of the linkdef file used to created the ACLiC dictionary. This effectively enable the full customization of the creation of the dictionary. It should be noted that the file is intended as a linkdef fragment, so usually you would not list the typical:

#pragma link off ....

Definition at line 4040 of file TSystem.cxx.

◆ SetLinkedLibs()

void TSystem::SetLinkedLibs ( const char * linkedLibs )

virtual

LinkedLibs should contain the library directory and list of libraries needed to recreate the current executable.

It is used to expand $LinkedLibs in the directives given to SetMakeSharedLib() and SetMakeExe() The default value on Unix is: root-config --glibs

Definition at line 4018 of file TSystem.cxx.

◆ SetMakeExe()

void TSystem::SetMakeExe ( const char * directives )

virtual

Directives has the same syntax as the argument of SetMakeSharedLib but is used to create an executable.

This creation is used as a means to output a list of unresolved symbols, when loading a shared library has failed. The required variable is $ExeName rather than $SharedLib, e.g.:

gSystem->SetMakeExe(
"g++ -Wall -fPIC $IncludePath $SourceFiles
 -o $ExeName $LinkedLibs -L/usr/X11R6/lib -lX11 -lm -ldl -rdynamic");

Definition at line 3911 of file TSystem.cxx.

◆ SetMakeSharedLib()

void TSystem::SetMakeSharedLib ( const char * directives )

virtual

Directives should contain the description on how to compile and link a shared lib.

This description can be any valid shell command, including the use of ';' to separate several instructions. However, shell specific construct should be avoided. In particular this description can contain environment variables, like $ROOTSYS (or ROOTSYS% on windows).

Five special variables will be expanded before execution:
  Variable name       Expands to
  -------------       ----------
  $SourceFiles        Name of source files to be compiled
  $SharedLib          Name of the shared library being created
  $LibName            Name of shared library without extension
  $BuildDir           Directory where the files will be created
  $IncludePath        value of fIncludePath
  $LinkedLibs         value of fLinkedLibs
  $DepLibs            libraries on which this library depends on
  $ObjectFiles        Name of source files to be compiler with
                      their extension changed to .o or .obj
  $Opt                location of the optimization/debug options
                      set fFlagsDebug and fFlagsOpt

e.g.:

gSystem->SetMakeSharedLib(
"KCC -n32 --strict $IncludePath -K0 \$Opt $SourceFile
 --no_exceptions --signed_chars --display_error_number
 --diag_suppress 68 -o $SharedLib");
gSystem->setMakeSharedLib(
"Cxx $IncludePath -c $SourceFile;
 ld  -L/usr/lib/cmplrs/cxx -rpath /usr/lib/cmplrs/cxx -expect_unresolved
 \$Opt -shared /usr/lib/cmplrs/cc/crt0.o /usr/lib/cmplrs/cxx/_main.o
 -o $SharedLib $ObjectFile -lcxxstd -lcxx -lexc -lots -lc"
gSystem->SetMakeSharedLib(
"$HOME/mygcc/bin/g++ \$Opt -Wall -fPIC $IncludePath $SourceFile
 -shared -o $SharedLib");
gSystem->SetMakeSharedLib(
"cl -DWIN32  -D_WIN32 -D_MT -D_DLL -MD /O2 /G5 /MD -DWIN32
 -D_WINDOWS $IncludePath $SourceFile
 /link -PDB:NONE /NODEFAULTLIB /INCREMENTAL:NO /RELEASE /NOLOGO
 $LinkedLibs -entry:_DllMainCRTStartup@12 -dll /out:$SharedLib")

Definition at line 3963 of file TSystem.cxx.

◆ SetObjExt()

void TSystem::SetObjExt ( const char * objExt )

virtual

Set object files extension, should be either .o, .obj, etc.

Definition at line 4057 of file TSystem.cxx.

◆ SetProgname()

void TSystem::SetProgname ( const char * name )

virtual

Set the application name (from command line, argv[0]) and copy it in gProgName.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 230 of file TSystem.cxx.

◆ SetSockOpt()

int TSystem::SetSockOpt	(	int	sock,
		int	kind,
		int	val
	)

virtual

Set socket option.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 2412 of file TSystem.cxx.

◆ SetSoExt()

void TSystem::SetSoExt ( const char * soExt )

virtual

Set shared library extension, should be either .so, .sl, .a, .dll, etc.

Definition at line 4049 of file TSystem.cxx.

◆ ShowOutput()

void TSystem::ShowOutput ( RedirectHandle_t * h )

virtual

Display the content associated with the redirection described by the opaque handle 'h'.

Definition at line 1694 of file TSystem.cxx.

◆ SigAlarmInterruptsSyscalls()

virtual void TSystem::SigAlarmInterruptsSyscalls ( Bool_t )

inlineprotectedvirtual

Reimplemented in TUnixSystem.

Definition at line 311 of file TSystem.h.

◆ Sleep()

void TSystem::Sleep ( UInt_t milliSec )

virtual

Sleep milliSec milli seconds.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 444 of file TSystem.cxx.

◆ SplitAclicMode()

TString TSystem::SplitAclicMode	(	const char *	filename,
		TString &	aclicMode,
		TString &	arguments,
		TString &	io
	)		const

virtual

This method split a filename of the form: ~~~ {.cpp} [path/]macro.C[+|++[k|f|g|O|c|s|d|v|-]][(args)].

~~~ It stores the ACliC mode [+|++[options]] in 'mode', the arguments (including parenthesis) in arg and the I/O indirection in io

Definition at line 4071 of file TSystem.cxx.

◆ StackTrace()

void TSystem::StackTrace ( )

virtual

Print a stack trace.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 739 of file TSystem.cxx.

◆ StripOffProto()

static const char* TSystem::StripOffProto	(	const char *	path,
		const char *	proto
	)

inlinestaticprotected

Definition at line 315 of file TSystem.h.

◆ Symlink()

int TSystem::Symlink	(	const char *	from,
		const char *	to
	)

virtual

Create a symbolic link from file1 to file2.

Reimplemented in TWinNTSystem, TUnixSystem, TChirpSystem, and TAlienSystem.

Definition at line 1344 of file TSystem.cxx.

◆ Syslog()

void TSystem::Syslog	(	ELogLevel	level,
		const char *	mess
	)

virtual

Send mess to syslog daemon.

Level is the logging level and mess the message that will be written on the log.

Reimplemented in TUnixSystem.

Definition at line 1655 of file TSystem.cxx.

◆ TempDirectory()

const char * TSystem::TempDirectory ( ) const

virtual

Return a user configured or systemwide directory to create temporary files in.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1454 of file TSystem.cxx.

◆ TempFileName()

FILE * TSystem::TempFileName	(	TString &	base,
		const char *	dir = `0`
	)

virtual

Create a secure temporary file by appending a unique 6 letter string to base.

The file will be created in a standard (system) directory or in the directory provided in dir. The full filename is returned in base and a filepointer is returned for safely writing to the file (this avoids certain security problems). Returns 0 in case of error.

Reimplemented in TWinNTSystem, and TUnixSystem.

Definition at line 1469 of file TSystem.cxx.

◆ Umask()

int TSystem::Umask ( Int_t mask )

virtual

Set the process file creation mode mask.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 1487 of file TSystem.cxx.

◆ UnixPathName()

const char * TSystem::UnixPathName ( const char * name )

virtual

Convert from a Unix pathname to a local pathname.

E.g. from /user/root to \user\root.

Reimplemented in TWinNTSystem.

Definition at line 1043 of file TSystem.cxx.

◆ Unlink()

int TSystem::Unlink ( const char * name )

virtual

Unlink, i.e. remove, a file.

Reimplemented in TWinNTSystem, TUnixSystem, TNetSystem, TWebSystem, TXNetSystem, TRFIOSystem, THDFSSystem, TDavixSystem, TNetXNGSystem, TAlienSystem, and TChirpSystem.

Definition at line 1353 of file TSystem.cxx.

◆ Unload()

void TSystem::Unload ( const char * module )

virtual

Unload a shared library.

Reimplemented in TUnixSystem.

Definition at line 1985 of file TSystem.cxx.

◆ Unsetenv()

void TSystem::Unsetenv ( const char * name )

virtual

Unset environment variable.

Reimplemented in TUnixSystem.

Definition at line 1626 of file TSystem.cxx.

◆ Utime()

int TSystem::Utime	(	const char *	file,
		Long_t	modtime,
		Long_t	actime
	)

virtual

Set the a files modification and access times.

If actime = 0 it will be set to the modtime. Returns 0 on success and -1 in case of error.

Reimplemented in TWinNTSystem, TUnixSystem, TAlienSystem, and TChirpSystem.

Definition at line 1497 of file TSystem.cxx.

◆ Which()

char * TSystem::Which	(	const char *	search,
		const char *	wfil,
		EAccessMode	mode = `kFileExists`
	)

virtual

Find location of file in a search path.

User must delete returned string. Returns 0 in case file is not found.

Definition at line 1518 of file TSystem.cxx.

◆ WorkingDirectory()

const char * TSystem::WorkingDirectory ( )

virtual

Return working directory.

Reimplemented in TWinNTSystem, TUnixSystem, and TAlienSystem.

Definition at line 868 of file TSystem.cxx.

Member Data Documentation

◆ fAclicMode

EAclicMode TSystem::fAclicMode

protected

Definition at line 296 of file TSystem.h.

◆ fAclicProperties

Int_t TSystem::fAclicProperties

protected

Definition at line 300 of file TSystem.h.

◆ fBeepDuration

Int_t TSystem::fBeepDuration

protected

Definition at line 270 of file TSystem.h.

◆ fBeepFreq

Int_t TSystem::fBeepFreq

protected

Definition at line 269 of file TSystem.h.

◆ fBuildArch

TString TSystem::fBuildArch

protected

Definition at line 284 of file TSystem.h.

◆ fBuildCompiler

TString TSystem::fBuildCompiler

protected

Definition at line 285 of file TSystem.h.

◆ fBuildCompilerVersion

TString TSystem::fBuildCompilerVersion

protected

Definition at line 286 of file TSystem.h.

◆ fBuildDir

TString TSystem::fBuildDir

protected

Definition at line 288 of file TSystem.h.

◆ fBuildNode

TString TSystem::fBuildNode

protected

Definition at line 287 of file TSystem.h.

◆ fCompiled

TSeqCollection* TSystem::fCompiled

protected

Definition at line 301 of file TSystem.h.

◆ fDone

Bool_t TSystem::fDone

protected

Definition at line 273 of file TSystem.h.

◆ fFileHandler

TSeqCollection* TSystem::fFileHandler

protected

Definition at line 278 of file TSystem.h.

◆ fFlagsDebug

TString TSystem::fFlagsDebug

protected

Definition at line 289 of file TSystem.h.

◆ fFlagsOpt

TString TSystem::fFlagsOpt

protected

Definition at line 290 of file TSystem.h.

◆ fHelpers

TSeqCollection* TSystem::fHelpers

protected

Definition at line 302 of file TSystem.h.

◆ fHostname

TString TSystem::fHostname

protected

Definition at line 267 of file TSystem.h.

◆ fIncludePath

TString TSystem::fIncludePath

protected

Definition at line 292 of file TSystem.h.

◆ fInControl

Bool_t TSystem::fInControl

protected

Definition at line 272 of file TSystem.h.

◆ fInsideNotify

Bool_t TSystem::fInsideNotify

protected

Definition at line 268 of file TSystem.h.

◆ fLevel

Int_t TSystem::fLevel

protected

Definition at line 274 of file TSystem.h.

◆ fLinkdefSuffix

TString TSystem::fLinkdefSuffix

protected

Definition at line 299 of file TSystem.h.

◆ fLinkedLibs

TString TSystem::fLinkedLibs

protected

Definition at line 293 of file TSystem.h.

◆ fListLibs

TString TSystem::fListLibs

protected

Definition at line 282 of file TSystem.h.

◆ fListPaths

TString TSystem::fListPaths

protected

Definition at line 291 of file TSystem.h.

◆ fMakeExe

TString TSystem::fMakeExe

protected

Definition at line 298 of file TSystem.h.

◆ fMakeSharedLib

TString TSystem::fMakeSharedLib

protected

Definition at line 297 of file TSystem.h.

◆ fMaxrfd

Int_t TSystem::fMaxrfd

protected

Definition at line 263 of file TSystem.h.

◆ fMaxwfd

Int_t TSystem::fMaxwfd

protected

Definition at line 264 of file TSystem.h.

◆ fNfd

Int_t TSystem::fNfd

protected

Signals that were trapped.

Definition at line 262 of file TSystem.h.

◆ fObjExt

TString TSystem::fObjExt

protected

Definition at line 295 of file TSystem.h.

◆ fOnExitList

TSeqCollection* TSystem::fOnExitList

protected

Definition at line 280 of file TSystem.h.

◆ fReadmask

TFdSet* TSystem::fReadmask

protected

Definition at line 257 of file TSystem.h.

◆ fReadready

TFdSet* TSystem::fReadready

protected

Files that should be checked for write events.

Definition at line 259 of file TSystem.h.

◆ fSigcnt

Int_t TSystem::fSigcnt

protected

Definition at line 265 of file TSystem.h.

◆ fSignalHandler

TSeqCollection* TSystem::fSignalHandler

protected

Definition at line 277 of file TSystem.h.

◆ fSignals

TFdSet* TSystem::fSignals

protected

Files with writes waiting.

Definition at line 261 of file TSystem.h.

◆ fSoExt

TString TSystem::fSoExt

protected

Definition at line 294 of file TSystem.h.

◆ fStdExceptionHandler

TSeqCollection* TSystem::fStdExceptionHandler

protected

Definition at line 279 of file TSystem.h.

◆ fTimers

TSeqCollection* TSystem::fTimers

protected

Definition at line 276 of file TSystem.h.

◆ fWdpath

TString TSystem::fWdpath

protected

Definition at line 266 of file TSystem.h.

◆ fWritemask

TFdSet* TSystem::fWritemask

protected

Files that should be checked for read events.

Definition at line 258 of file TSystem.h.

◆ fWriteready

TFdSet* TSystem::fWriteready

protected

Files with reads waiting.

Definition at line 260 of file TSystem.h.

The documentation for this class was generated from the following files:

core/base/inc/TSystem.h
core/base/src/TSystem.cxx

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Member Enumeration Documentation

◆ EAclicMode

◆ EAclicProperties

Constructor & Destructor Documentation

◆ TSystem() [1/2]

◆ TSystem() [2/2]

◆ ~TSystem()

Member Function Documentation

◆ Abort()

◆ AcceptConnection()

◆ AccessPathName()

◆ AddDynamicPath()

◆ AddFileHandler()

◆ AddIncludePath()

◆ AddLinkedLibs()

◆ AddSignalHandler()

◆ AddStdExceptionHandler()

◆ AddTimer()

◆ AnnounceTcpService()

◆ AnnounceUdpService()

◆ AnnounceUnixService() [1/2]

◆ AnnounceUnixService() [2/2]

◆ BaseName()

◆ Beep()

◆ cd()

◆ ChangeDirectory()

◆ Chmod()

◆ CleanCompiledMacros()

◆ CloseConnection()

◆ Closelog()

◆ ClosePipe()

◆ CompileMacro()

◆ ConcatFileName()

◆ ConsistentWith()

◆ CopyFile()

◆ DirName()

◆ DispatchOneEvent()

◆ DoBeep()

◆ DynamicPathName()

◆ DynFindSymbol()

◆ Exec()

◆ Exit()

◆ ExitLoop()

◆ ExpandFileName() [1/3]

◆ ExpandFileName() [2/3]

◆ ExpandFileName() [3/3]

◆ ExpandPathName() [1/2]

◆ ExpandPathName() [2/2]

◆ FindDynamicLibrary()

◆ FindFile()

◆ FindHelper()

◆ FreeDirectory()

◆ GetAclicMode()

◆ GetAclicProperties()

◆ GetBeepDefaults()

◆ GetBuildArch()

◆ GetBuildCompiler()

◆ GetBuildCompilerVersion()

◆ GetBuildDir()

◆ GetBuildNode()

◆ GetCpuInfo()

◆ GetDirEntry()

◆ GetDirPtr()

◆ GetDynamicPath()

◆ GetEffectiveGid()

◆ GetEffectiveUid()

◆ Getenv()

◆ GetErrno()

◆ GetError()

◆ GetErrorStr()

◆ GetFlagsDebug()

◆ GetFlagsOpt()

◆ GetFPEMask()