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Add Atomthreads RTOS source files.
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Kelvin Lawson
176
tests/timer2.c
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176
tests/timer2.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 "atomtimer.h"
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#include "atomtests.h"
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/* Test period (in seconds) */
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#define TEST_PERIOD_SECS 10
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/* Test OS objects */
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static ATOM_TCB tcb1, tcb2, tcb3;
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static uint8_t test1_thread_stack[TEST_THREAD_STACK_SIZE];
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static uint8_t test2_thread_stack[TEST_THREAD_STACK_SIZE];
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static uint8_t test3_thread_stack[TEST_THREAD_STACK_SIZE];
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/* Per-thread failure counts */
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static volatile int g_failure_cnt[3];
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/* Forward declarations */
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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 timer test.
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*
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* Tests that atomTimerDelay() delays for the correct time
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* period when used by three threads simultanously.
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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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/* Default to zero failures */
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failures = 0;
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g_failure_cnt[0] = g_failure_cnt[1] = g_failure_cnt[2] = 0;
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/* Create Thread 1 */
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if (atomThreadCreate(&tcb1, TEST_THREAD_PRIO, test_thread_func, 1,
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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("Thread1\n"));
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failures++;
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}
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/* Create Thread 2 */
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if (atomThreadCreate(&tcb2, TEST_THREAD_PRIO, test_thread_func, 2,
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&test2_thread_stack[TEST_THREAD_STACK_SIZE - 1]) != ATOM_OK)
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{
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/* Fail */
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ATOMLOG (_STR("Thread2\n"));
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failures++;
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}
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/* Create Thread 3 */
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if (atomThreadCreate(&tcb3, TEST_THREAD_PRIO, test_thread_func, 3,
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&test3_thread_stack[TEST_THREAD_STACK_SIZE - 1]) != ATOM_OK)
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{
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/* Fail */
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ATOMLOG (_STR("Thread3\n"));
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failures++;
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}
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/* Sleep for 10 seconds allowing the three threads to run tests */
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if (atomTimerDelay(TEST_PERIOD_SECS * SYSTEM_TICKS_PER_SEC) != ATOM_OK)
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{
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ATOMLOG (_STR("Period\n"));
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failures++;
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}
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/* Add the per-thread failure count to the main count */
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failures += g_failure_cnt[0] + g_failure_cnt[1] + g_failure_cnt[2];
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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 test_thread_func
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*
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* Entry point for test thread. The same thread entry point is used for all
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* three test threads, with the thread number/ID (1-3) passed as the entry
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* point parameter.
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*
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* @param[in] data Thread number (1,2,3)
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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 thread_id;
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uint32_t start_time, end_time;
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/* Thread ID is passed through the function parameter */
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thread_id = (uint8_t)data;
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/*
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* Sleep for 1 tick to ensure that the thread starts near
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* a timer tick boundary. This ensures that the system
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* tick does not advance between the atomTimeGet() call
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* and the actual atomTimerDelay() call being made.
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*/
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atomTimerDelay (1);
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/* Loop running the test forever */
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while (1)
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{
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/* Record the start time */
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start_time = atomTimeGet();
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/* Sleep for n ticks, where n is the thread ID */
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if (atomTimerDelay(thread_id) != ATOM_OK)
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{
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g_failure_cnt[thread_id-1]++;
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}
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else
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{
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/* Record the time we woke up */
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end_time = atomTimeGet();
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/* Check that time has advanced by exactly n ticks */
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if ((end_time - start_time) != thread_id)
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{
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g_failure_cnt[thread_id-1]++;
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}
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}
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}
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}
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