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/* Helper program for testing the pthread_mutex_t and pthread_mutexattr_t
pretty printers.
Copyright (C) 2016-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* Keep the calls to the pthread_* functions on separate lines to make it easy
to advance through the program using the gdb 'next' command. */
#include <pthread.h>
#define PASS 0
#define FAIL 1
#define PRIOCEILING 42
/* Need these so we don't have lines longer than 79 chars. */
#define SET_TYPE(attr, type) pthread_mutexattr_settype (attr, type)
#define SET_ROBUST(attr, robust) pthread_mutexattr_setrobust (attr, robust)
#define SET_SHARED(attr, shared) pthread_mutexattr_setpshared (attr, shared)
#define SET_PROTOCOL(attr, protocol) \
pthread_mutexattr_setprotocol (attr, protocol)
#define SET_PRIOCEILING(mutex, prioceiling, old_ceiling) \
pthread_mutex_setprioceiling (mutex, prioceiling, old_ceiling)
static int mutex_reinit (pthread_mutex_t *mutex,
const pthread_mutexattr_t *attr);
static int test_settype (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
static int test_setrobust (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
static int test_setpshared (pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
static int test_setprotocol (pthread_mutex_t *mutex,
pthread_mutexattr_t *attr);
int
main (void)
{
pthread_mutex_t mutex;
pthread_mutexattr_t attr;
int result = FAIL;
if (pthread_mutexattr_init (&attr) == 0
&& pthread_mutex_init (&mutex, NULL) == 0
&& test_settype (&mutex, &attr) == PASS
&& test_setrobust (&mutex, &attr) == PASS
&& test_setpshared (&mutex, &attr) == PASS
&& test_setprotocol (&mutex, &attr) == PASS)
result = PASS;
/* Else, one of the pthread_mutex* functions failed. */
return result;
}
/* Destroys MUTEX and re-initializes it using ATTR. */
static int
mutex_reinit (pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
{
int result = FAIL;
if (pthread_mutex_destroy (mutex) == 0
&& pthread_mutex_init (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting the mutex type. */
static int
test_settype (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
if (SET_TYPE (attr, PTHREAD_MUTEX_ERRORCHECK) == 0 /* Set type. */
&& mutex_reinit (mutex, attr) == 0
&& SET_TYPE (attr, PTHREAD_MUTEX_RECURSIVE) == 0
&& mutex_reinit (mutex, attr) == 0
&& SET_TYPE (attr, PTHREAD_MUTEX_NORMAL) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting whether the mutex is robust. */
static int
test_setrobust (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
if (SET_ROBUST (attr, PTHREAD_MUTEX_ROBUST) == 0 /* Set robust. */
&& mutex_reinit (mutex, attr) == 0
&& SET_ROBUST (attr, PTHREAD_MUTEX_STALLED) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting whether the mutex can be shared between processes. */
static int
test_setpshared (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
if (SET_SHARED (attr, PTHREAD_PROCESS_SHARED) == 0 /* Set shared. */
&& mutex_reinit (mutex, attr) == 0
&& SET_SHARED (attr, PTHREAD_PROCESS_PRIVATE) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
/* Tests setting the mutex protocol and, for Priority Protect, the Priority
Ceiling. */
static int
test_setprotocol (pthread_mutex_t *mutex, pthread_mutexattr_t *attr)
{
int result = FAIL;
int old_prioceiling;
if (SET_PROTOCOL (attr, PTHREAD_PRIO_INHERIT) == 0 /* Set protocol. */
&& mutex_reinit (mutex, attr) == 0
&& SET_PROTOCOL (attr, PTHREAD_PRIO_PROTECT) == 0
&& mutex_reinit (mutex, attr) == 0
&& SET_PRIOCEILING(mutex, PRIOCEILING, &old_prioceiling) == 0
&& SET_PROTOCOL (attr, PTHREAD_PRIO_NONE) == 0
&& mutex_reinit (mutex, attr) == 0)
result = PASS;
return result;
}
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