POSIX_ROBUST_MUTEXES

POSIX Robust Mutexes option group (placeholder). More...

Macros
#define	PTHREAD_MUTEX_ROBUST   4
	Robust mutex; the state is recoverable if the owner dies.
#define	PTHREAD_MUTEX_STALLED   1
	Mutex is not recovered on owner death (default, for non-robust mutexes).

Functions
int	pthread_mutex_consistent (pthread_mutex_t *mutex)
	Mark a robust mutex as consistent after recovering from owner death.
int	pthread_mutexattr_getrobust (const pthread_mutexattr_t *ZRESTRICT attr, int *ZRESTRICT robust)
	Get the robustness attribute of a mutex attributes object.
int	pthread_mutexattr_setrobust (pthread_mutexattr_t *attr, int robust)
	Set the robustness attribute of a mutex attributes object.

Detailed Description

POSIX Robust Mutexes option group (placeholder).

See also

https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_subprofiles.html

https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_subprofiles.html

Macro Definition Documentation

PTHREAD_MUTEX_ROBUST

#define PTHREAD_MUTEX_ROBUST   4

Robust mutex; the state is recoverable if the owner dies.

Definition at line 66 of file pthread.h.

PTHREAD_MUTEX_STALLED

#define PTHREAD_MUTEX_STALLED   1

Mutex is not recovered on owner death (default, for non-robust mutexes).

Definition at line 68 of file pthread.h.

Function Documentation

pthread_mutex_consistent()

int pthread_mutex_consistent

(

pthread_mutex_t *

mutex

)

Mark a robust mutex as consistent after recovering from owner death.

Parameters

mutex

Robust mutex to mark consistent.

Returns

0 on success, or a positive error number on failure.

See also

https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_mutex_consistent.html

pthread_mutexattr_getrobust()

int pthread_mutexattr_getrobust	(	const pthread_mutexattr_t *ZRESTRICT	attr,
		int *ZRESTRICT	robust
	)

Get the robustness attribute of a mutex attributes object.

Parameters

attr	Mutex attributes object.
robust	Output: PTHREAD_MUTEX_STALLED or PTHREAD_MUTEX_ROBUST.

Returns

0 on success, or a positive error number on failure.

See also

https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_mutexattr_getrobust.html

pthread_mutexattr_setrobust()

int pthread_mutexattr_setrobust	(	pthread_mutexattr_t *	attr,
		int	robust
	)

Set the robustness attribute of a mutex attributes object.

Parameters

attr	Mutex attributes object.
robust	PTHREAD_MUTEX_STALLED or PTHREAD_MUTEX_ROBUST.

Returns

0 on success, or a positive error number on failure.

See also

https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_mutexattr_setrobust.html