1 .\" Copyright (c) 1998 Alex Nash
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25 .\" $FreeBSD: src/share/man/man3/pthread_rwlockattr_getpshared.3,v 1.15 2007/10/22 10:08:00 ru Exp $
26 .\" $DragonFly: src/lib/libc_r/man/pthread_rwlockattr_getpshared.3,v 1.3 2006/02/17 19:35:07 swildner Exp $
29 .Dt PTHREAD_RWLOCKATTR_GETPSHARED 3
32 .Nm pthread_rwlockattr_getpshared
33 .Nd get the process shared attribute
39 .Fn pthread_rwlockattr_getpshared "const pthread_rwlockattr_t *attr" "int *pshared"
42 .Fn pthread_rwlockattr_getpshared
43 function is used to get the process shared setting of a read/write
44 lock attribute object.
45 The setting is returned via
47 and may be one of two values:
48 .Bl -tag -width ".Dv PTHREAD_PROCESS_PRIVATE"
49 .It Dv PTHREAD_PROCESS_SHARED
50 Any thread of any process that has access to the memory where the
51 read/write lock resides can manipulate the lock.
52 .It Dv PTHREAD_PROCESS_PRIVATE
53 Only threads created within the same process as the thread that
54 initialized the read/write lock can manipulate the lock.
60 .Fn pthread_rwlockattr_getpshared
61 function will return zero.
62 Otherwise an error number will be returned
63 to indicate the error.
66 .Fn pthread_rwlockattr_getpshared
70 The value specified by
75 .Xr pthread_rwlockattr_init 3 ,
76 .Xr pthread_rwlockattr_setpshared 3 ,
77 .Xr pthread_rwlock_init 3
80 .Fn pthread_rwlockattr_getpshared
81 function is expected to conform to
85 .Fn pthread_rwlockattr_getpshared
86 function first appeared in