PTHREAD_RWLOCKATTR_SE... BSD Library Functions Manual PTHREAD_RWLOCKATTR_SE...
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
Mac OS X 10.8 - Generated Thu Aug 30 10:16:05 CDT 2012