MPSendRecv.cxx File Reference

#include "MPSendRecv.h"
#include "TBufferFile.h"
#include "MPCode.h"
#include <memory>

Include dependency graph for MPSendRecv.cxx:

Functions
MPCodeBufPair	MPRecv (TSocket *s)
	Receive message from a socket. More...
int	MPSend (TSocket *s, unsigned code)
	Send a message with the specified code on the specified socket. More...

Function Documentation

MPRecv()

MPCodeBufPair MPRecv

(

TSocket *

s

)

Receive message from a socket.

This standalone function can be used to read a message that has been sent via MPSend(). The smart pointer contained in the returned MPCodeBufPair is null if the message does not contain an object, otherwise it points to a TBufferFile. To retrieve the object from the buffer different methods must be used depending on the type of the object to be read:

• non-pointer built-in types: TBufferFile::operator>> must be used
  
• c-strings: TBufferFile::ReadString must be used
  
• class types: TBufferFile::ReadObjectAny must be used
  

  Parameters

  s	a pointer to a valid TSocket. No validity checks are performed

  Returns

  MPCodeBufPair, i.e. an std::pair containing message code and (possibly) object

Definition at line 54 of file MPSendRecv.cxx.

MPSend()

int MPSend	(	TSocket *	s,
		unsigned	code
	)

Send a message with the specified code on the specified socket.

This standalone function can be used to send a code on a given socket. It does not check whether the socket connection is in a valid state. The message code can then be retrieved via MPRecv().
Note: only objects the headers of which have been parsed by cling can be sent by MPSend(). User-defined types can be made available to cling via a call like gSystem->ProcessLine("#include \"header.h\""). Pointer types are not supported (with the exception of const char*), but the user can simply dereference the pointer and send the pointed object instead.
Note: for readability, codes should be enumerated as in EMPCode.

Parameters

s	a pointer to a valid TSocket. No validity checks are performed
code	the code to be sent

Returns

the number of bytes sent, as per TSocket::SendRaw

Definition at line 32 of file MPSendRecv.cxx.