getppid()
QNX SDP8.0C Library ReferenceAPIDeveloper
Get the parent process ID
Synopsis:
#include <sys/types.h>
#include <unistd.h>
pid_t getppid( void );
This function is declared in <process.h>, which <unistd.h> includes.
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 <unistd.h>
int main( void )
{
printf( "My parent is %d\n", getppid() );
return EXIT_SUCCESS;
}
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Signal handler | Yes |
| Thread | Yes |
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