Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/TESTS/mbedmicro-rtos-mbed/basic/main.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /*
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2013-2017, ARM Limited, All Rights Reserved
marcozecchini 0:9fca2b23d0ba 3 * SPDX-License-Identifier: Apache-2.0
marcozecchini 0:9fca2b23d0ba 4 *
marcozecchini 0:9fca2b23d0ba 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
marcozecchini 0:9fca2b23d0ba 6 * not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 7 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 8 *
marcozecchini 0:9fca2b23d0ba 9 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
marcozecchini 0:9fca2b23d0ba 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 14 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 15 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 16 */
marcozecchini 0:9fca2b23d0ba 17 #include "mbed.h"
marcozecchini 0:9fca2b23d0ba 18 #include "greentea-client/test_env.h"
marcozecchini 0:9fca2b23d0ba 19 #include "utest/utest.h"
marcozecchini 0:9fca2b23d0ba 20 #include "unity/unity.h"
marcozecchini 0:9fca2b23d0ba 21
marcozecchini 0:9fca2b23d0ba 22 #if defined(MBED_RTOS_SINGLE_THREAD)
marcozecchini 0:9fca2b23d0ba 23 #error [NOT_SUPPORTED] test not supported
marcozecchini 0:9fca2b23d0ba 24 #endif
marcozecchini 0:9fca2b23d0ba 25
marcozecchini 0:9fca2b23d0ba 26 using utest::v1::Case;
marcozecchini 0:9fca2b23d0ba 27
marcozecchini 0:9fca2b23d0ba 28 #define TEST_STACK_SIZE 256
marcozecchini 0:9fca2b23d0ba 29 #define ONE_MILLI_SEC 1000
marcozecchini 0:9fca2b23d0ba 30
marcozecchini 0:9fca2b23d0ba 31 volatile uint32_t elapsed_time_ms = 0;
marcozecchini 0:9fca2b23d0ba 32 static const int test_timeout = 40;
marcozecchini 0:9fca2b23d0ba 33
marcozecchini 0:9fca2b23d0ba 34
marcozecchini 0:9fca2b23d0ba 35 void update_tick_thread(Mutex *mutex)
marcozecchini 0:9fca2b23d0ba 36 {
marcozecchini 0:9fca2b23d0ba 37 while (true) {
marcozecchini 0:9fca2b23d0ba 38 Thread::wait(1);
marcozecchini 0:9fca2b23d0ba 39 mutex->lock();
marcozecchini 0:9fca2b23d0ba 40 ++elapsed_time_ms;
marcozecchini 0:9fca2b23d0ba 41 mutex->unlock();
marcozecchini 0:9fca2b23d0ba 42 }
marcozecchini 0:9fca2b23d0ba 43 }
marcozecchini 0:9fca2b23d0ba 44
marcozecchini 0:9fca2b23d0ba 45
marcozecchini 0:9fca2b23d0ba 46 /** Tests is to measure the accuracy of Thread::wait() over a period of time
marcozecchini 0:9fca2b23d0ba 47
marcozecchini 0:9fca2b23d0ba 48 Given
marcozecchini 0:9fca2b23d0ba 49 a thread updating elapsed_time_ms every milli sec
marcozecchini 0:9fca2b23d0ba 50 and host script for time measurement accuracy check (More details on tests can be found in timing_drift_auto.py)
marcozecchini 0:9fca2b23d0ba 51 When host query what is current count base_time
marcozecchini 0:9fca2b23d0ba 52 Then Device responds by the elapsed_time_ms
marcozecchini 0:9fca2b23d0ba 53 When host query what is current count final_time
marcozecchini 0:9fca2b23d0ba 54 Then Device responds by the elapsed_time_ms
marcozecchini 0:9fca2b23d0ba 55 When host computes the drift considering base_time, final_time, transport delay and measurement stretch
marcozecchini 0:9fca2b23d0ba 56 Then host send the results back to device pass/fail based on tolerance
marcozecchini 0:9fca2b23d0ba 57 */
marcozecchini 0:9fca2b23d0ba 58 void test(void)
marcozecchini 0:9fca2b23d0ba 59 {
marcozecchini 0:9fca2b23d0ba 60 char _key[11] = { };
marcozecchini 0:9fca2b23d0ba 61 char _value[128] = { };
marcozecchini 0:9fca2b23d0ba 62 int expected_key = 1;
marcozecchini 0:9fca2b23d0ba 63 Mutex mutex;
marcozecchini 0:9fca2b23d0ba 64 uint32_t elapsed_time;
marcozecchini 0:9fca2b23d0ba 65
marcozecchini 0:9fca2b23d0ba 66 Thread tick_thread(osPriorityHigh, TEST_STACK_SIZE);
marcozecchini 0:9fca2b23d0ba 67 tick_thread.start(callback(update_tick_thread, &mutex));
marcozecchini 0:9fca2b23d0ba 68
marcozecchini 0:9fca2b23d0ba 69 greentea_send_kv("timing_drift_check_start", 0);
marcozecchini 0:9fca2b23d0ba 70
marcozecchini 0:9fca2b23d0ba 71 // wait for 1st signal from host
marcozecchini 0:9fca2b23d0ba 72 do {
marcozecchini 0:9fca2b23d0ba 73 greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
marcozecchini 0:9fca2b23d0ba 74 expected_key = strcmp(_key, "base_time");
marcozecchini 0:9fca2b23d0ba 75 } while (expected_key);
marcozecchini 0:9fca2b23d0ba 76
marcozecchini 0:9fca2b23d0ba 77 mutex.lock();
marcozecchini 0:9fca2b23d0ba 78 elapsed_time = elapsed_time_ms;
marcozecchini 0:9fca2b23d0ba 79 mutex.unlock();
marcozecchini 0:9fca2b23d0ba 80 // send base_time
marcozecchini 0:9fca2b23d0ba 81 greentea_send_kv(_key, elapsed_time * ONE_MILLI_SEC);
marcozecchini 0:9fca2b23d0ba 82
marcozecchini 0:9fca2b23d0ba 83 // wait for 2nd signal from host
marcozecchini 0:9fca2b23d0ba 84 greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
marcozecchini 0:9fca2b23d0ba 85
marcozecchini 0:9fca2b23d0ba 86 mutex.lock();
marcozecchini 0:9fca2b23d0ba 87 elapsed_time = elapsed_time_ms;
marcozecchini 0:9fca2b23d0ba 88 mutex.unlock();
marcozecchini 0:9fca2b23d0ba 89 // send final_time
marcozecchini 0:9fca2b23d0ba 90 greentea_send_kv(_key, elapsed_time * ONE_MILLI_SEC);
marcozecchini 0:9fca2b23d0ba 91
marcozecchini 0:9fca2b23d0ba 92 //get the results from host
marcozecchini 0:9fca2b23d0ba 93 greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
marcozecchini 0:9fca2b23d0ba 94
marcozecchini 0:9fca2b23d0ba 95 TEST_ASSERT_EQUAL_STRING_MESSAGE("pass", _key,"Host side script reported a fail...");
marcozecchini 0:9fca2b23d0ba 96 }
marcozecchini 0:9fca2b23d0ba 97
marcozecchini 0:9fca2b23d0ba 98 Case cases[] = {
marcozecchini 0:9fca2b23d0ba 99 Case("Test Thread::wait accuracy", test)
marcozecchini 0:9fca2b23d0ba 100 };
marcozecchini 0:9fca2b23d0ba 101
marcozecchini 0:9fca2b23d0ba 102 utest::v1::status_t greentea_test_setup(const size_t number_of_cases)
marcozecchini 0:9fca2b23d0ba 103 {
marcozecchini 0:9fca2b23d0ba 104 GREENTEA_SETUP(test_timeout, "timing_drift_auto");
marcozecchini 0:9fca2b23d0ba 105 return utest::v1::greentea_test_setup_handler(number_of_cases);
marcozecchini 0:9fca2b23d0ba 106 }
marcozecchini 0:9fca2b23d0ba 107
marcozecchini 0:9fca2b23d0ba 108 utest::v1::Specification specification(greentea_test_setup, cases);
marcozecchini 0:9fca2b23d0ba 109
marcozecchini 0:9fca2b23d0ba 110 int main()
marcozecchini 0:9fca2b23d0ba 111 {
marcozecchini 0:9fca2b23d0ba 112 utest::v1::Harness::run(specification);
marcozecchini 0:9fca2b23d0ba 113 }