mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 15:30:07 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/* Copyright (C) 1997-2018 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 <errno.h>
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
#include <sysdep-cancel.h>
|
|
|
|
int
|
|
__sigtimedwait (const sigset_t *set, siginfo_t *info,
|
|
const struct timespec *timeout)
|
|
{
|
|
sigset_t tmpset;
|
|
if (set != NULL
|
|
&& (__builtin_expect (__sigismember (set, SIGCANCEL), 0)
|
|
|| __builtin_expect (__sigismember (set, SIGSETXID), 0)))
|
|
{
|
|
/* Create a temporary mask without the bit for SIGCANCEL set. */
|
|
// We are not copying more than we have to.
|
|
memcpy (&tmpset, set, _NSIG / 8);
|
|
__sigdelset (&tmpset, SIGCANCEL);
|
|
__sigdelset (&tmpset, SIGSETXID);
|
|
set = &tmpset;
|
|
}
|
|
|
|
/* XXX The size argument hopefully will have to be changed to the
|
|
real size of the user-level sigset_t. */
|
|
int result = SYSCALL_CANCEL (rt_sigtimedwait, set, info, timeout, _NSIG / 8);
|
|
|
|
/* The kernel generates a SI_TKILL code in si_code in case tkill is
|
|
used. tkill is transparently used in raise(). Since having
|
|
SI_TKILL as a code is useful in general we fold the results
|
|
here. */
|
|
if (result != -1 && info != NULL && info->si_code == SI_TKILL)
|
|
info->si_code = SI_USER;
|
|
|
|
return result;
|
|
}
|
|
libc_hidden_def (__sigtimedwait)
|
|
weak_alias (__sigtimedwait, sigtimedwait)
|