PTHREAD_RWLOCKATTR_SETPSHARED(3) BSD Library Functions Manual PTHREAD_RWLOCKATTR_SETPSHARED(3)NAME
pthread_rwlockattr_setpshared -- set the process shared attribute
SYNOPSIS
#include <pthread.h>
int
pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int pshared);
DESCRIPTION
The pthread_rwlockattr_setpshared() function sets the process-shared attribute of attr to the value referenced by pshared. pshared may be
one of two values:
PTHREAD_PROCESS_SHARED Any thread of any process that has access to the memory where the read/write lock resides can manipulate the lock.
PTHREAD_PROCESS_PRIVATE Only threads created within the same process as the thread that initialized the read/write lock can manipulate the
lock. This is the default value.
RETURN VALUES
If successful, the pthread_rwlockattr_setpshared() function will return zero. Otherwise, an error number will be returned to indicate the
error.
SEE ALSO pthread_rwlock_init(3), pthread_rwlockattr_init(3), pthread_rwlockattr_setpshared(3)STANDARDS
The pthread_rwlockattr_setpshared() function is expected to conform to Version 2 of the Single UNIX Specification (``SUSv2'').
ERRORS
pthread_rwlockattr_setpshared() will fail if:
[EINVAL] The value specified by attr or pshared is invalid.
HISTORY
The pthread_rwlockattr_setpshared() function first appeared in FreeBSD 3.0.
BUGS
The PTHREAD_PROCESS_SHARED attribute is not supported.
BSD August 4, 1998 BSD
Check Out this Related Man Page
PTHREAD_RWLOCKATTR_SETPSHARED(3) BSD Library Functions Manual PTHREAD_RWLOCKATTR_SETPSHARED(3)NAME
pthread_rwlockattr_setpshared -- set the process shared attribute
SYNOPSIS
#include <pthread.h>
int
pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int pshared);
DESCRIPTION
The pthread_rwlockattr_setpshared() function sets the process shared attribute of attr to the value referenced by pshared. The pshared argu-
ment may be one of two values:
PTHREAD_PROCESS_SHARED Any thread of any process that has access to the memory where the read/write lock resides can manipulate the lock.
PTHREAD_PROCESS_PRIVATE Only threads created within the same process as the thread that initialized the read/write lock can manipulate the
lock. This is the default value.
RETURN VALUES
If successful, the pthread_rwlockattr_setpshared() function will return zero. Otherwise an error number will be returned to indicate the
error.
ERRORS
The pthread_rwlockattr_setpshared() function will fail if:
[EINVAL] The value specified by attr or pshared is invalid.
SEE ALSO pthread_rwlock_init(3), pthread_rwlockattr_getpshared(3), pthread_rwlockattr_init(3)STANDARDS
The pthread_rwlockattr_setpshared() function is expected to conform to Version 2 of the Single UNIX Specification (``SUSv2'').
HISTORY
The pthread_rwlockattr_setpshared() function first appeared in FreeBSD 3.0.
BUGS
The PTHREAD_PROCESS_SHARED attribute is not supported.
BSD August 4, 1998 BSD
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