PTHREAD_RWLOCKATTR_GETPSHARED(3) | Library Functions Manual | PTHREAD_RWLOCKATTR_GETPSHARED(3) |
pthread_rwlockattr_getpshared
—
get the process shared attribute
#include
<pthread.h>
int
pthread_rwlockattr_getpshared
(const
pthread_rwlockattr_t *attr,
int *pshared);
The
pthread_rwlockattr_getpshared
()
function is used to get the process shared setting of a read/write lock
attribute object. The setting is returned via pshared,
and may be one of two values:
PTHREAD_PROCESS_SHARED
PTHREAD_PROCESS_PRIVATE
If successful, the
pthread_rwlockattr_getpshared
() function will return
zero. Otherwise an error number will be returned to indicate the error.
The pthread_rwlockattr_getpshared
()
function may fail if:
EINVAL
]pthread_rwlock_init(3), pthread_rwlockattr_init(3), pthread_rwlockattr_setpshared(3)
The pthread_rwlockattr_getpshared
()
function is expected to conform to Version 2 of the
Single UNIX Specification (“SUSv2”).
The pthread_rwlockattr_getpshared
()
function first appeared in FreeBSD 3.0.
March 22, 1999 | macOS 14.6 |