_POSIX_THREAD_PROCESS_SHARED

POSIX Thread Process-Shared Synchronization option (placeholder). More...

Macros
#define	PTHREAD_PROCESS_SHARED   1
	Mutex or barrier attribute: object is shared between processes.
#define	PTHREAD_PROCESS_PRIVATE   0
	Mutex or barrier attribute: object is private to the process (default).

Functions
int	pthread_condattr_getpshared (const pthread_condattr_t *ZRESTRICT attr, int *ZRESTRICT pshared)
	Get the process-shared attribute of a condition variable attributes object.
int	pthread_condattr_setpshared (pthread_condattr_t *attr, int pshared)
	Set the process-shared attribute of a condition variable attributes object.
int	pthread_mutexattr_getpshared (const pthread_mutexattr_t *ZRESTRICT attr, int *ZRESTRICT pshared)
	Get the process-shared attribute of a mutex attributes object.
int	pthread_mutexattr_setpshared (pthread_mutexattr_t *attr, int pshared)
	Set the process-shared attribute of a mutex attributes object.

Detailed Description

POSIX Thread Process-Shared Synchronization option (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_PROCESS_PRIVATE

#define PTHREAD_PROCESS_PRIVATE   0

Mutex or barrier attribute: object is private to the process (default).

Definition at line 87 of file pthread.h.

PTHREAD_PROCESS_SHARED

#define PTHREAD_PROCESS_SHARED   1

Mutex or barrier attribute: object is shared between processes.

Definition at line 85 of file pthread.h.

Function Documentation

pthread_condattr_getpshared()

int pthread_condattr_getpshared	(	const pthread_condattr_t *ZRESTRICT	attr,
		int *ZRESTRICT	pshared
	)

Get the process-shared attribute of a condition variable attributes object.

Parameters

attr	Condition variable attributes object.
pshared	Output: PTHREAD_PROCESS_SHARED or PTHREAD_PROCESS_PRIVATE.

Returns

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

See also

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

pthread_condattr_setpshared()

int pthread_condattr_setpshared	(	pthread_condattr_t *	attr,
		int	pshared
	)

Set the process-shared attribute of a condition variable attributes object.

Parameters

attr	Condition variable attributes object.
pshared	PTHREAD_PROCESS_SHARED or PTHREAD_PROCESS_PRIVATE.

Returns

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

See also

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

pthread_mutexattr_getpshared()

int pthread_mutexattr_getpshared	(	const pthread_mutexattr_t *ZRESTRICT	attr,
		int *ZRESTRICT	pshared
	)

Get the process-shared attribute of a mutex attributes object.

Parameters

attr	Mutex attributes object.
pshared	Output: PTHREAD_PROCESS_SHARED or PTHREAD_PROCESS_PRIVATE.

Returns

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

See also

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

pthread_mutexattr_setpshared()

int pthread_mutexattr_setpshared	(	pthread_mutexattr_t *	attr,
		int	pshared
	)

Set the process-shared attribute of a mutex attributes object.

Parameters

attr	Mutex attributes object.
pshared	PTHREAD_PROCESS_SHARED or PTHREAD_PROCESS_PRIVATE.

Returns

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

See also

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