Blame sysdeps/unix/sysv/linux/aio_sigqueue.c

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/* Copyright (C) 1997-2018 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 <aio.h>
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#include <errno.h>
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#include <signal.h>
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#include <unistd.h>
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#include <string.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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#include <aio_misc.h>
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#ifdef __NR_rt_sigqueueinfo
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/* Return any pending signal or wait for one for the given time.  */
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int
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__aio_sigqueue (int sig, const union sigval val, pid_t caller_pid)
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{
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  siginfo_t info;
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  /* First, clear the siginfo_t structure, so that we don't pass our
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     stack content to other tasks.  */
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  memset (&info, 0, sizeof (siginfo_t));
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  /* We must pass the information about the data in a siginfo_t value.  */
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  info.si_signo = sig;
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  info.si_code = SI_ASYNCIO;
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  info.si_pid = caller_pid;
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  info.si_uid = getuid ();
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  info.si_value = val;
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  return INLINE_SYSCALL (rt_sigqueueinfo, 3, info.si_pid, sig, &info;;
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}
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#else
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# include <rt/aio_sigqueue.c>
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#endif