| /* Copyright (C) 1991-2014 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sys/wait.h> |
| #include <errno.h> |
| #include <sys/resource.h> |
| #include <stddef.h> |
| #include <sysdep-cancel.h> |
| |
| /* Wait for a child to die. When one does, put its status in *STAT_LOC |
| and return its process ID. For errors, return (pid_t) -1. */ |
| pid_t |
| __libc_wait (__WAIT_STATUS_DEFN stat_loc) |
| { |
| if (SINGLE_THREAD_P) |
| return INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0, |
| (struct rusage *) NULL); |
| |
| int oldtype = LIBC_CANCEL_ASYNC (); |
| |
| pid_t result = INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0, |
| (struct rusage *) NULL); |
| |
| LIBC_CANCEL_RESET (oldtype); |
| |
| return result; |
| } |
| |
| weak_alias (__libc_wait, __wait) |
| weak_alias (__libc_wait, wait) |
