__wait3.c

来自「一个C源代码分析器」· C语言 代码 · 共 35 行

/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include <ansidecl.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/types.h>

/* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
   return its process ID.  For errors return (pid_t) -1.  If USAGE is not nil,
   store information about the child's resource usage (as a `struct rusage')
   there.  If the WUNTRACED bit is set in OPTIONS, return status for stopped
   children; otherwise don't.  */
pid_t
DEFUN(__wait3, (stat_loc, options, usage),
      __WAIT_STATUS_DEFN stat_loc AND int options AND struct rusage *usage)
{
  return __wait4 (WAIT_ANY, stat_loc, options, usage);
}