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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | CONFORMING TO | NOTES | EXAMPLE | SEE ALSO | COLOPHON |
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PTHREAD_MUTEX_CONSISTENT(3)inux Programmer's ManualHREAD_MUTEX_CONSISTENT(3)
pthread_mutex_consistent - make a robust mutex consistent
#include <pthread.h>
int pthread_mutex_consistent(pthread_mutex_t *mutex);
Compile and link with -pthread.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
pthread_mutex_consistent():
_POSIX_C_SOURCE >= 200809L
This function makes a robust mutex consistent if it is in an
inconsistent state. A mutex can be left in an inconsistent state if
its owner terminates while holding the mutex, in which case the next
owner who acquires the mutex will succeed and be notified by a return
value of EOWNERDEAD from a call to pthread_mutex_lock().
On success, pthread_mutex_consistent() returns 0. Otherwise, it
returns a positive error number to indicate the cause of the error.
EINVAL The mutex is either not robust or is not in an inconsistent
state.
pthread_mutex_consistent() was added to glibc in version 2.12.
POSIX.1-2008.
pthread_mutex_consistent() simply informs the implementation that the
state (shared data) guarded by the mutex has been restored to a
consistent state and that normal operations can now be performed with
the mutex. It is the application's responsibility to ensure that the
shared data has been restored to a consistent state before calling
pthread_mutex_consistent().
Before the addition of pthread_mutex_consistent() to POSIX, glibc
defined the following equivalent nonstandard function if _GNU_SOURCE
was defined:
int pthread_mutex_consistent(const pthread_mutex_t *mutex);
This GNU-specific API, which first appeared in glibc 2.4, is nowadays
obsolete and should not be used in new programs.
See pthread_mutexattr_setrobust(3).
pthread_mutexattr_init(3), pthread_mutex_lock(3),
pthread_mutexattr_setrobust(3), pthread_mutexattr_getrobust(3),
pthreads(7)
This page is part of release 4.15 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
Linux 2017-08-20 PTHREAD_MUTEX_CONSISTENT(3)
Pages that refer to this page: pthread_mutexattr_setrobust(3)
Copyright and license for this manual page
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