This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

getppid()

Get the parent process ID

Synopsis:

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

pid_t getppid( void );

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The getppid() function gets the process ID of the parent of the calling process.

Returns:

The calling process's parent's process ID.

Examples:

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <process.h>

int main( void )
  {
    printf( "My parent is %d\n", getppid() );
    return EXIT_SUCCESS;
  }

Classification:

POSIX 1003.1

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes