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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Copyright (C) 1991-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/wait.h>
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#include <errno.h>
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#include <sys/resource.h>
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#include <stddef.h>
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#include <sysdep-cancel.h>
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/* Wait for a child to die. When one does, put its status in *STAT_LOC
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and return its process ID. For errors, return (pid_t) -1. */
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pid_t
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__libc_wait (__WAIT_STATUS_DEFN stat_loc)
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{
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if (SINGLE_THREAD_P)
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return INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0,
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(struct rusage *) NULL);
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int oldtype = LIBC_CANCEL_ASYNC ();
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pid_t result = INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0,
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(struct rusage *) NULL);
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LIBC_CANCEL_RESET (oldtype);
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return result;
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}
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weak_alias (__libc_wait, __wait)
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weak_alias (__libc_wait, wait)
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