pthread_rwlockattr_getpshared.3 revision 124562
Copyright (c) 1998 Alex Nash
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$FreeBSD: head/share/man/man3/pthread_rwlockattr_getpshared.3 124562 2004-01-15 15:59:00Z ru $
.Dd March 22, 1999 .Dt PTHREAD_RWLOCKATTR_GETPSHARED 3 .Os .Sh NAME .Nm pthread_rwlockattr_getpshared .Nd get the process shared attribute .Sh LIBRARY .Lb libc_r .Lb libpthread .Lb libthr .Sh SYNOPSIS n pthread.h .Ft int .Fn pthread_rwlockattr_getpshared "const pthread_rwlockattr_t *attr" "int *pshared" .Sh DESCRIPTION The .Fn pthread_rwlockattr_getpshared function is used to get the process shared setting of a read/write lock attribute object. The setting is returned via .Fa pshared , and may be one of two values: l -tag -width PTHREAD_PROCESS_PRIVATE t Dv PTHREAD_PROCESS_SHARED Any thread of any process that has access to the memory where the read/write lock resides can manipulate the lock. t Dv 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. .El .Sh RETURN VALUES If successful, the .Fn pthread_rwlockattr_getpshared function will return zero. Otherwise an error number will be returned to indicate the error. .Sh SEE ALSO .Xr pthread_rwlockattr_init 3 , .Xr pthread_rwlockattr_setpshared 3 , .Xr pthread_rwlock_init 3 .Sh STANDARDS The .Fn pthread_rwlockattr_getpshared function is expected to conform to .St -susv2 . .Sh ERRORS The .Fn pthread_rwlockattr_getpshared function may fail if: l -tag -width Er t Bq Er EINVAL The value specified by .Fa attr is invalid. .El .Sh HISTORY The .Fn pthread_rwlockattr_getpshared function first appeared in .Fx 3.0 .
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$FreeBSD: head/share/man/man3/pthread_rwlockattr_getpshared.3 124562 2004-01-15 15:59:00Z ru $
.Dd March 22, 1999 .Dt PTHREAD_RWLOCKATTR_GETPSHARED 3 .Os .Sh NAME .Nm pthread_rwlockattr_getpshared .Nd get the process shared attribute .Sh LIBRARY .Lb libc_r .Lb libpthread .Lb libthr .Sh SYNOPSIS n pthread.h .Ft int .Fn pthread_rwlockattr_getpshared "const pthread_rwlockattr_t *attr" "int *pshared" .Sh DESCRIPTION The .Fn pthread_rwlockattr_getpshared function is used to get the process shared setting of a read/write lock attribute object. The setting is returned via .Fa pshared , and may be one of two values: l -tag -width PTHREAD_PROCESS_PRIVATE t Dv PTHREAD_PROCESS_SHARED Any thread of any process that has access to the memory where the read/write lock resides can manipulate the lock. t Dv 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. .El .Sh RETURN VALUES If successful, the .Fn pthread_rwlockattr_getpshared function will return zero. Otherwise an error number will be returned to indicate the error. .Sh SEE ALSO .Xr pthread_rwlockattr_init 3 , .Xr pthread_rwlockattr_setpshared 3 , .Xr pthread_rwlock_init 3 .Sh STANDARDS The .Fn pthread_rwlockattr_getpshared function is expected to conform to .St -susv2 . .Sh ERRORS The .Fn pthread_rwlockattr_getpshared function may fail if: l -tag -width Er t Bq Er EINVAL The value specified by .Fa attr is invalid. .El .Sh HISTORY The .Fn pthread_rwlockattr_getpshared function first appeared in .Fx 3.0 .