%GetRPCCallerProcess function

Function
The function returns a unique identifier (HOBJ) of object of the Process type that called currently executed RPC procedure.
Declaration
INT %GetRPCCallerProcess()
Parameters
No parameters.
Return value
The return value is of the Int type. 
Description
This function can be used to identify the process in an application that is built on server-client architecture. It eliminates the explicit transmission of process identifier by means of parameters.
This example shows the transmission of identifier of calling process by means of parameter:
Example
  ; Calling with transmission of HOBJ of calling process
 INT _hbj
 _hbj := %GetParentProcessHBJ()
 CALL [E.Service] Service(1, _hbj)
 
 
 
  ; *****************************************
 ; _callerProcess - HOBJ of calling process
 RPC PROCEDURE Service (IN INT _anyParams, IN INT _callerProcess)
 END Service
 
or using the function %GetRPCCallerProcess:
 
  ; Calling without transmission of HOBJ by means of parameter
 CALL [E.Service] Service(1)
 
 
 
  ;
 RPC PROCEDURE Service (IN INT _anyParams, IN INT _callerProcess)
   INT _callerProcess
   _callerProcess := %GetRPCCallerProcess()
  END Service

Related pages:

ESL extended functions
Function arguments - types
CALL action - remote procedure call

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