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Add Atomthreads RTOS source files.
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Kelvin Lawson
299
tests/mutex2.c
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299
tests/mutex2.c
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/*
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* Copyright (c) 2010, Kelvin Lawson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. No personal names or organizations' names associated with the
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* Atomthreads project may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "atom.h"
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#include "atommutex.h"
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#include "atomtests.h"
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#include "atomuser.h"
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/* Test OS objects */
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static ATOM_MUTEX mutex1, mutex2;
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static ATOM_TCB tcb1;
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static uint8_t test1_thread_stack[TEST_THREAD_STACK_SIZE];
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/* Test result tracking */
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static volatile int g_result, g_owned;
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/* Forward declarations */
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static void testCallback (POINTER cb_data);
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static void test_thread_func (uint32_t data);
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/**
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* \b test_start
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*
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* Start mutex test.
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*
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* This test exercises the atomMutexGet() and atomMutexPut() APIs including
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* forcing the various error indications which can be returned from the
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* APIs to ensure that handling for these corner cases have been correctly
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* implemented.
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*
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* @retval Number of failures
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*/
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uint32_t test_start (void)
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{
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int failures;
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uint8_t status;
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ATOM_TIMER timer_cb;
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int count;
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/* Default to zero failures */
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failures = 0;
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/* Test parameter checks */
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if (atomMutexGet (NULL, 0) != ATOM_ERR_PARAM)
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{
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ATOMLOG (_STR("Get param failed\n"));
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failures++;
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}
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if (atomMutexPut (NULL) != ATOM_ERR_PARAM)
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{
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ATOMLOG (_STR("Put param failed\n"));
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failures++;
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}
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/* Test atomMutexGet() can not be called from interrupt context */
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g_result = 0;
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if (atomMutexCreate (&mutex1) != ATOM_OK)
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{
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ATOMLOG (_STR("Error creating test mutex1\n"));
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failures++;
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}
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else
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{
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/* Fill out the timer callback request structure */
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timer_cb.cb_func = testCallback;
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timer_cb.cb_data = NULL;
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timer_cb.cb_ticks = SYSTEM_TICKS_PER_SEC;
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/* Request the timer callback to run in one second */
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if (atomTimerRegister (&timer_cb) != ATOM_OK)
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{
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ATOMLOG (_STR("Error registering timer\n"));
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failures++;
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}
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/* Wait two seconds for g_result to be set indicating success */
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else
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{
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atomTimerDelay (2 * SYSTEM_TICKS_PER_SEC);
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if (g_result != 1)
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{
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ATOMLOG (_STR("Context check failed\n"));
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failures++;
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}
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}
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/* Delete the test mutex */
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if (atomMutexDelete (&mutex1) != ATOM_OK)
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{
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ATOMLOG (_STR("Mutex1 delete failed\n"));
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failures++;
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}
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}
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/* Create mutex1 which will be owned by us */
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if (atomMutexCreate (&mutex1) != ATOM_OK)
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{
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ATOMLOG (_STR("Error creating test mutex 1\n"));
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failures++;
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}
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/* Create mutex2 which will be owned by another thread */
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else if (atomMutexCreate (&mutex2) != ATOM_OK)
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{
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ATOMLOG (_STR("Error creating test mutex 2\n"));
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failures++;
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}
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/* Create a test thread, the sole purpose of which is to own mutex2 */
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g_owned = 0;
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if (atomThreadCreate(&tcb1, TEST_THREAD_PRIO, test_thread_func, 0,
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&test1_thread_stack[TEST_THREAD_STACK_SIZE - 1]) != ATOM_OK)
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{
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/* Fail */
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ATOMLOG (_STR("Error creating test thread 1\n"));
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failures++;
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}
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/* Sleep until the test thread owns mutex2 */
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atomTimerDelay (SYSTEM_TICKS_PER_SEC);
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if (g_owned == 0)
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{
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ATOMLOG (_STR("Thread own fail\n"));
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failures++;
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}
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/* Test wait on mutex with timeout - should timeout while owned by another thread */
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if ((status = atomMutexGet (&mutex2, SYSTEM_TICKS_PER_SEC)) != ATOM_TIMEOUT)
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{
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ATOMLOG (_STR("Get %d\n"), status);
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failures++;
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}
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else
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{
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/* Success */
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}
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/* Test wait on mutex with no blocking - should return that owned by another thread */
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if ((status = atomMutexGet (&mutex2, -1)) != ATOM_WOULDBLOCK)
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{
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ATOMLOG (_STR("Wouldblock err %d\n"), status);
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failures++;
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}
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/* Test wait on mutex with no blocking when mutex is available */
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if (atomMutexGet (&mutex1, -1) != ATOM_OK)
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{
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ATOMLOG (_STR("Error taking mutex1\n"));
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failures++;
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}
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else
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{
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/* Relinquish ownership of mutex1 */
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if (atomMutexPut (&mutex1) != ATOM_OK)
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{
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ATOMLOG (_STR("Error posting mutex\n"));
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failures++;
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}
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}
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/* Test for lock count overflows with too many gets */
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count = 255;
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while (count--)
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{
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if (atomMutexGet (&mutex1, 0) != ATOM_OK)
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{
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ATOMLOG (_STR("Error getting mutex1\n"));
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failures++;
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break;
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}
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}
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/* The lock count should overflow this time */
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if (atomMutexGet (&mutex1, 0) != ATOM_ERR_OVF)
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{
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ATOMLOG (_STR("Error tracking overflow\n"));
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failures++;
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}
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else
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{
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/* Success */
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}
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/* Delete the test mutexes */
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if (atomMutexDelete (&mutex1) != ATOM_OK)
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{
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ATOMLOG (_STR("Error deleting mutex1\n"));
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failures++;
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}
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if (atomMutexDelete (&mutex2) != ATOM_OK)
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{
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ATOMLOG (_STR("Error deleting mutex2\n"));
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failures++;
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}
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/* Log final status */
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if (failures == 0)
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{
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ATOMLOG (_STR("Pass\n"));
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}
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else
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{
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ATOMLOG (_STR("Fail(%d)\n"), failures);
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}
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/* Quit */
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return failures;
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}
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/**
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* \b testCallback
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*
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* Attempt an atomMutexGet() on mutex1 from interrupt context.
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* Should receive an ATOM_ERR_CONTEXT error. Sets g_result if passes.
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*
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* @param[in] cb_data Not used
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*/
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static void testCallback (POINTER cb_data)
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{
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/* Check the return value from atomMutexGet() */
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if (atomMutexGet(&mutex1, 0) == ATOM_ERR_CONTEXT)
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{
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/* Received the error we expected, set g_result to notify success */
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g_result = 1;
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}
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else
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{
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/* Did not get expected error, don't set g_result signifying fail */
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}
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}
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/**
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* \b test_thread_func
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*
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* Entry point for test thread.
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*
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* @param[in] data Unused (optional thread entry parameter)
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*
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* @return None
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*/
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static void test_thread_func (uint32_t data)
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{
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uint8_t status;
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/*
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* Take mutex2 so that main thread can test mutex APIs on a mutex
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* which it does not own.
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*/
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status = atomMutexGet(&mutex2, 0);
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if (status != ATOM_OK)
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{
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ATOMLOG (_STR("Mutex get (%d)\n"), status);
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}
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else
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{
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/* We took ownership of mutex2, set g_owned to notify success */
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g_owned = 1;
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}
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/* Wait forever */
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while (1)
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{
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atomTimerDelay (SYSTEM_TICKS_PER_SEC);
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}
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}
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