getpgrp()--Get Process Group ID

Syntax

 #include <sys/types.h>   
 #include <unistd.h>

 pid_t getpgrp(void);

  Service Program Name: QP0WSRV1

  Default Public Authority: *USE

  Threadsafe: Yes

The getpgrp() function returns the process group ID of the calling process.

Parameters

None.

Authorities

None.

Return Value

pid_t

The value returned by getpgrp() is the process group ID of the calling process.

Error Conditions

The getpgrp() function is always successful and does not return an error.

Usage Notes

The getpgrp() function enables a process for signals if the process is not already enabled for signals. For details, see Qp0sEnableSignals()--Enable Process for Signals.

Related Information

The <sys/types.h> file (see Header Files for UNIX^®-Type Functions)
The <unistd.h> file (see Header Files for UNIX-Type Functions)
Qp0wGetPgrp()--Get Process Group ID

Example

For an example of using this function, see the child program in Example: Using process-related APIs.

API introduced: V3R6

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