glibc/sysdeps/posix/sigpause.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

73 lines
2.2 KiB
C

/* Copyright (C) 1991-2022 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
<https://www.gnu.org/licenses/>. */
#define sigpause __rename_sigpause
#include <errno.h>
#include <signal.h>
#include <stddef.h> /* For NULL. */
#undef sigpause
#include <sigset-cvt-mask.h>
#include <sysdep-cancel.h>
int
__sigpause (int sig_or_mask, int is_sig)
{
sigset_t set;
if (is_sig != 0)
{
/* The modern X/Open implementation is requested. */
if (__sigprocmask (0, NULL, &set) < 0
|| sigdelset (&set, sig_or_mask) < 0)
return -1;
}
else if (sigset_set_old_mask (&set, sig_or_mask) < 0)
return -1;
/* Note the sigpause() is a cancellation point. But since we call
sigsuspend() which itself is a cancellation point we do not have
to do anything here. */
return __sigsuspend (&set);
}
libc_hidden_def (__sigpause)
/* We have to provide a default version of this function since the
standards demand it. The version which is a bit more reasonable is
the BSD version. So make this the default. */
int
__attribute__ ((weak))
__default_sigpause (int mask)
{
return __sigpause (mask, 0);
}
#undef sigpause
weak_alias (__default_sigpause, sigpause)
strong_alias (__default_sigpause, __libc_sigpause)
/* We have to provide a default version of this function since the
standards demand it. The version which is a bit more reasonable is
the BSD version. So make this the default. */
int
__attribute__ ((weak))
__xpg_sigpause (int sig)
{
return __sigpause (sig, 1);
}
strong_alias (__xpg_sigpause, __libc___xpg_sigpause)