getppid.c

来自「RTEMS (Real-Time Executive for Multiproc」· C语言 代码 · 共 30 行

/*
 *  $Id: getppid.c,v 1.1.2.1 2003/08/19 08:30:41 ralf Exp $
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <limits.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>

#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/seterr.h>

pid_t _POSIX_types_Ppid = 0;

/*PAGE
 *
 *  4.1.1 Get Process and Parent Process IDs, P1003.1b-1993, p. 83
 */

pid_t getppid( void )
{
  return _POSIX_types_Ppid;
}