pthread_barrierattr_setpshared()

Set the value of a barrier's process-shared attribute

Synopsis:

#include <sync.h>

int pthread_barrierattr_setpshared( 
                        pthread_barrierattr_t * attr
                        int pshared );

Library:

libc

Description:

The pthread_barrierattr_setpshared() function sets the process-shared attribute in an initialized attributes object referenced by attr. The process-shared attribute can have one of two values:

PTHREAD_PROCESS_SHARED: Allow a barrier to be operated upon by any thread that has access to the memory where the barrier is allocated.
PTHREAD_PROCESS_PRIVATE (default behavior).: A barrier is operated upon only by threads created within the same process as the thread that initialized the barrier. If threads of different processes attempt to operate on such a barrier, the behavior is as if PTHREAD_PROCESS_SHARED is set.

Returns:

EOK: Success.
EINVAL: Invalid mutex attribute object attr.
EINVAL: The new value specified in pshared isn't PTHREAD_PROCESS_SHARED or PTHREAD_PROCESS_PRIVATE.

Classification:

POSIX 1003.1j (draft)

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes