145 lines
4.6 KiB
C
145 lines
4.6 KiB
C
/* Helper program for testing the pthread_mutex_t and pthread_mutexattr_t
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pretty printers.
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Copyright (C) 2016-2019 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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<http://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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#define PRIOCEILING 42
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/* Need these so we don't have lines longer than 79 chars. */
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#define SET_TYPE(attr, type) pthread_mutexattr_settype (attr, type)
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#define SET_ROBUST(attr, robust) pthread_mutexattr_setrobust (attr, robust)
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#define SET_SHARED(attr, shared) pthread_mutexattr_setpshared (attr, shared)
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#define SET_PROTOCOL(attr, protocol) \
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pthread_mutexattr_setprotocol (attr, protocol)
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#define SET_PRIOCEILING(mutex, prioceiling, old_ceiling) \
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pthread_mutex_setprioceiling (mutex, prioceiling, old_ceiling)
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static int mutex_reinit (pthread_mutex_t *mutex,
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const pthread_mutexattr_t *attr);
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static int test_settype (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
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static int test_setrobust (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
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static int test_setpshared (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
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static int test_setprotocol (pthread_mutex_t *mutex,
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pthread_mutexattr_t *attr);
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int
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main (void)
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{
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pthread_mutex_t mutex;
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pthread_mutexattr_t attr;
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int result = FAIL;
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if (pthread_mutexattr_init (&attr) == 0
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&& pthread_mutex_init (&mutex, NULL) == 0
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&& test_settype (&mutex, &attr) == PASS
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&& test_setrobust (&mutex, &attr) == PASS
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&& test_setpshared (&mutex, &attr) == PASS
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&& test_setprotocol (&mutex, &attr) == PASS)
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result = PASS;
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/* Else, one of the pthread_mutex* functions failed. */
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return result;
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}
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/* Destroys MUTEX and re-initializes it using ATTR. */
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static int
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mutex_reinit (pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
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{
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int result = FAIL;
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if (pthread_mutex_destroy (mutex) == 0
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&& pthread_mutex_init (mutex, attr) == 0)
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result = PASS;
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return result;
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}
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/* Tests setting the mutex type. */
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static int
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test_settype (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
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{
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int result = FAIL;
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if (SET_TYPE (attr, PTHREAD_MUTEX_ERRORCHECK) == 0 /* Set type. */
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&& mutex_reinit (mutex, attr) == 0
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&& SET_TYPE (attr, PTHREAD_MUTEX_RECURSIVE) == 0
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&& mutex_reinit (mutex, attr) == 0
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&& SET_TYPE (attr, PTHREAD_MUTEX_NORMAL) == 0
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&& mutex_reinit (mutex, 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 mutex is robust. */
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static int
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test_setrobust (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
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{
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int result = FAIL;
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if (SET_ROBUST (attr, PTHREAD_MUTEX_ROBUST) == 0 /* Set robust. */
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&& mutex_reinit (mutex, attr) == 0
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&& SET_ROBUST (attr, PTHREAD_MUTEX_STALLED) == 0
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&& mutex_reinit (mutex, 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 mutex can be shared between processes. */
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static int
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test_setpshared (pthread_mutex_t *mutex, pthread_mutexattr_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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&& mutex_reinit (mutex, attr) == 0
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&& SET_SHARED (attr, PTHREAD_PROCESS_PRIVATE) == 0
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&& mutex_reinit (mutex, attr) == 0)
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result = PASS;
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return result;
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}
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/* Tests setting the mutex protocol and, for Priority Protect, the Priority
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Ceiling. */
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static int
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test_setprotocol (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
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{
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int result = FAIL;
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int old_prioceiling;
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if (SET_PROTOCOL (attr, PTHREAD_PRIO_INHERIT) == 0 /* Set protocol. */
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&& mutex_reinit (mutex, attr) == 0
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&& SET_PROTOCOL (attr, PTHREAD_PRIO_PROTECT) == 0
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&& mutex_reinit (mutex, attr) == 0
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&& SET_PRIOCEILING(mutex, PRIOCEILING, &old_prioceiling) == 0
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&& SET_PROTOCOL (attr, PTHREAD_PRIO_NONE) == 0
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&& mutex_reinit (mutex, attr) == 0)
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result = PASS;
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return result;
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}
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