mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
581c785bf3
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
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* C11 threads mutex initialization implementation.
|
|
Copyright (C) 2018-2022 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/>. */
|
|
|
|
#include <stdalign.h>
|
|
#include <shlib-compat.h>
|
|
|
|
#include "thrd_priv.h"
|
|
|
|
int
|
|
__mtx_init (mtx_t *mutex, int type)
|
|
{
|
|
_Static_assert (sizeof (mtx_t) == sizeof (pthread_mutex_t),
|
|
"sizeof (mtx_t) != sizeof (pthread_mutex_t)");
|
|
_Static_assert (alignof (mtx_t) == alignof (pthread_mutex_t),
|
|
"alignof (mtx_t) != alignof (pthread_mutex_t)");
|
|
|
|
pthread_mutexattr_t attr;
|
|
|
|
__pthread_mutexattr_init (&attr);
|
|
|
|
/* Another possible solution would be to set the flags directly in
|
|
mutex object. */
|
|
switch (type)
|
|
{
|
|
case mtx_plain | mtx_recursive:
|
|
case mtx_timed | mtx_recursive:
|
|
__pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
|
|
break;
|
|
case mtx_plain:
|
|
case mtx_timed: /* No difference between both in standard */
|
|
default:
|
|
__pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_NORMAL);
|
|
break;
|
|
}
|
|
|
|
int err_code = __pthread_mutex_init ((pthread_mutex_t *) mutex, &attr);
|
|
/* pthread_mutexattr_destroy implementation is a noop. */
|
|
return thrd_err_map (err_code);
|
|
}
|
|
#if PTHREAD_IN_LIBC
|
|
versioned_symbol (libc, __mtx_init, mtx_init, GLIBC_2_34);
|
|
# if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_28, GLIBC_2_34)
|
|
compat_symbol (libpthread, __mtx_init, mtx_init, GLIBC_2_28);
|
|
# endif
|
|
#else /* !PTHREAD_IN_LIBC */
|
|
strong_alias (__mtx_init, mtx_init)
|
|
#endif
|