glibc/nptl/cnd_wait.c

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nptl: Add C11 threads cnd_* functions This patch adds the cnd_* definitions from C11 threads (ISO/IEC 9899:2011), more specifically cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, cnd_wait, and required types. Mostly of the definitions are composed based on POSIX conterparts, and cnd_t is also based on internal pthreads fields, but with distinct internal layout to avoid possible issues with code interchange (such as trying to pass POSIX structure on C11 functions and to avoid inclusion of pthread.h). The idea is to make it possible to share POSIX internal implementation for mostly of the code making adjust where only required. Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu, powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu, and x86_64-linux-gnu). Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, arm-linux-gnueabhf, and powerpc64le-linux-gnu. [BZ #14092] * conform/data/threads.h-data (cnd_t): New type. (cnd_init): New function. (cnd_signal): Likewise. (cnd_broadcast): Likewise. (cnd_wait): Likewise. (cnd_timedwait): Likewise. (cnd_destroy): Likewise. * nptl/Makefile (libpthread-routines): Add cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, and cnd_wait object. * nptl/Versions (libpthread) [GLIBC_2.28]: Likewise. * nptl/cnd_broadcast.c: New file. * nptl/cnd_destroy.c: Likewise. * nptl/cnd_init.c: Likewise. * nptl/cnd_signal.c: Likewise. * nptl/cnd_timedwait.c: Likewise. * nptl/cnd_wait.c: Likewise. * sysdeps/nptl/threads.h (cnd_t): New type. (cnd_init): New prototype. (cnd_signa): Likewise. (cnd_broadcast): Likewise. (cnd_wait): Likewise. (cnd_timedwait): Likewise. (cnd_destroy): Likewise.
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/* C11 threads conditional wait implementaiton.
Copyright (C) 2018-2019 Free Software Foundation, Inc.
nptl: Add C11 threads cnd_* functions This patch adds the cnd_* definitions from C11 threads (ISO/IEC 9899:2011), more specifically cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, cnd_wait, and required types. Mostly of the definitions are composed based on POSIX conterparts, and cnd_t is also based on internal pthreads fields, but with distinct internal layout to avoid possible issues with code interchange (such as trying to pass POSIX structure on C11 functions and to avoid inclusion of pthread.h). The idea is to make it possible to share POSIX internal implementation for mostly of the code making adjust where only required. Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu, powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu, and x86_64-linux-gnu). Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, arm-linux-gnueabhf, and powerpc64le-linux-gnu. [BZ #14092] * conform/data/threads.h-data (cnd_t): New type. (cnd_init): New function. (cnd_signal): Likewise. (cnd_broadcast): Likewise. (cnd_wait): Likewise. (cnd_timedwait): Likewise. (cnd_destroy): Likewise. * nptl/Makefile (libpthread-routines): Add cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, and cnd_wait object. * nptl/Versions (libpthread) [GLIBC_2.28]: Likewise. * nptl/cnd_broadcast.c: New file. * nptl/cnd_destroy.c: Likewise. * nptl/cnd_init.c: Likewise. * nptl/cnd_signal.c: Likewise. * nptl/cnd_timedwait.c: Likewise. * nptl/cnd_wait.c: Likewise. * sysdeps/nptl/threads.h (cnd_t): New type. (cnd_init): New prototype. (cnd_signa): Likewise. (cnd_broadcast): Likewise. (cnd_wait): Likewise. (cnd_timedwait): Likewise. (cnd_destroy): Likewise.
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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
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
<https://www.gnu.org/licenses/>. */
nptl: Add C11 threads cnd_* functions This patch adds the cnd_* definitions from C11 threads (ISO/IEC 9899:2011), more specifically cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, cnd_wait, and required types. Mostly of the definitions are composed based on POSIX conterparts, and cnd_t is also based on internal pthreads fields, but with distinct internal layout to avoid possible issues with code interchange (such as trying to pass POSIX structure on C11 functions and to avoid inclusion of pthread.h). The idea is to make it possible to share POSIX internal implementation for mostly of the code making adjust where only required. Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu, powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu, and x86_64-linux-gnu). Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, arm-linux-gnueabhf, and powerpc64le-linux-gnu. [BZ #14092] * conform/data/threads.h-data (cnd_t): New type. (cnd_init): New function. (cnd_signal): Likewise. (cnd_broadcast): Likewise. (cnd_wait): Likewise. (cnd_timedwait): Likewise. (cnd_destroy): Likewise. * nptl/Makefile (libpthread-routines): Add cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, and cnd_wait object. * nptl/Versions (libpthread) [GLIBC_2.28]: Likewise. * nptl/cnd_broadcast.c: New file. * nptl/cnd_destroy.c: Likewise. * nptl/cnd_init.c: Likewise. * nptl/cnd_signal.c: Likewise. * nptl/cnd_timedwait.c: Likewise. * nptl/cnd_wait.c: Likewise. * sysdeps/nptl/threads.h (cnd_t): New type. (cnd_init): New prototype. (cnd_signa): Likewise. (cnd_broadcast): Likewise. (cnd_wait): Likewise. (cnd_timedwait): Likewise. (cnd_destroy): Likewise.
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#include "thrd_priv.h"
int
cnd_wait (cnd_t *cond, mtx_t *mutex)
{
int err_code = __pthread_cond_wait ((pthread_cond_t *) cond,
(pthread_mutex_t *) mutex);
return thrd_err_map (err_code);
}