101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/* Helper program for testing the pthread_rwlock_t and pthread_rwlockattr_t
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pretty printers.
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Copyright (C) 2016-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/* Keep the calls to the pthread_* functions on separate lines to make it easy
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to advance through the program using the gdb 'next' command. */
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#include <pthread.h>
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#define PASS 0
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#define FAIL 1
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/* Need these so we don't have lines longer than 79 chars. */
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#define SET_KIND(attr, kind) pthread_rwlockattr_setkind_np (attr, kind)
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#define SET_SHARED(attr, shared) pthread_rwlockattr_setpshared (attr, shared)
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static int rwlock_reinit (pthread_rwlock_t *rwlock,
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const pthread_rwlockattr_t *attr);
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static int test_setkind_np (pthread_rwlock_t *rwlock,
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pthread_rwlockattr_t *attr);
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static int test_setpshared (pthread_rwlock_t *rwlock,
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pthread_rwlockattr_t *attr);
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int
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main (void)
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{
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pthread_rwlock_t rwlock;
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pthread_rwlockattr_t attr;
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int result = FAIL;
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if (pthread_rwlockattr_init (&attr) == 0
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&& pthread_rwlock_init (&rwlock, NULL) == 0
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&& test_setkind_np (&rwlock, &attr) == PASS
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&& test_setpshared (&rwlock, &attr) == PASS)
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result = PASS;
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/* Else, one of the pthread_rwlock* functions failed. */
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return result;
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}
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/* Destroys RWLOCK and re-initializes it using ATTR. */
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static int
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rwlock_reinit (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr)
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{
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int result = FAIL;
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if (pthread_rwlock_destroy (rwlock) == 0
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&& pthread_rwlock_init (rwlock, attr) == 0)
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result = PASS;
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return result;
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}
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/* Tests setting whether the rwlock prefers readers or writers. */
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static int
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test_setkind_np (pthread_rwlock_t *rwlock, pthread_rwlockattr_t *attr)
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{
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int result = FAIL;
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if (SET_KIND (attr, PTHREAD_RWLOCK_PREFER_READER_NP) == 0 /* Set kind. */
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&& rwlock_reinit (rwlock, attr) == PASS
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&& SET_KIND (attr, PTHREAD_RWLOCK_PREFER_WRITER_NP) == 0
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&& rwlock_reinit (rwlock, attr) == PASS
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&& SET_KIND (attr, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP) == 0
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&& rwlock_reinit (rwlock, attr) == PASS)
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result = PASS;
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return result;
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}
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/* Tests setting whether the rwlock can be shared between processes. */
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static int
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test_setpshared (pthread_rwlock_t *rwlock, pthread_rwlockattr_t *attr)
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{
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int result = FAIL;
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if (SET_SHARED (attr, PTHREAD_PROCESS_SHARED) == 0 /* Set shared. */
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&& rwlock_reinit (rwlock, attr) == PASS
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&& SET_SHARED (attr, PTHREAD_PROCESS_PRIVATE) == 0
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&& rwlock_reinit (rwlock, attr) == PASS)
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result = PASS;
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return result;
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}
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