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Dependents:   Mecatro_Filtre

rtos/Mutex.cpp@0:4a2c9c1f5b9e, 2021-03-15 (annotated)

Committer:
mecatro_prod
Date:
Mon Mar 15 14:18:11 2021 +0000
Revision:
0:4a2c9c1f5b9e
Pas de changement

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mecatro_prod 0:4a2c9c1f5b9e 1 /* mbed Microcontroller Library
mecatro_prod 0:4a2c9c1f5b9e 2 * Copyright (c) 2006-2012 ARM Limited
mecatro_prod 0:4a2c9c1f5b9e 3 *
mecatro_prod 0:4a2c9c1f5b9e 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mecatro_prod 0:4a2c9c1f5b9e 5 * of this software and associated documentation files (the "Software"), to deal
mecatro_prod 0:4a2c9c1f5b9e 6 * in the Software without restriction, including without limitation the rights
mecatro_prod 0:4a2c9c1f5b9e 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mecatro_prod 0:4a2c9c1f5b9e 8 * copies of the Software, and to permit persons to whom the Software is
mecatro_prod 0:4a2c9c1f5b9e 9 * furnished to do so, subject to the following conditions:
mecatro_prod 0:4a2c9c1f5b9e 10 *
mecatro_prod 0:4a2c9c1f5b9e 11 * The above copyright notice and this permission notice shall be included in
mecatro_prod 0:4a2c9c1f5b9e 12 * all copies or substantial portions of the Software.
mecatro_prod 0:4a2c9c1f5b9e 13 *
mecatro_prod 0:4a2c9c1f5b9e 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mecatro_prod 0:4a2c9c1f5b9e 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mecatro_prod 0:4a2c9c1f5b9e 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mecatro_prod 0:4a2c9c1f5b9e 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mecatro_prod 0:4a2c9c1f5b9e 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mecatro_prod 0:4a2c9c1f5b9e 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mecatro_prod 0:4a2c9c1f5b9e 20 * SOFTWARE.
mecatro_prod 0:4a2c9c1f5b9e 21 */
mecatro_prod 0:4a2c9c1f5b9e 22 #include "rtos/Mutex.h"
mecatro_prod 0:4a2c9c1f5b9e 23
mecatro_prod 0:4a2c9c1f5b9e 24 #include <string.h>
mecatro_prod 0:4a2c9c1f5b9e 25 #include "platform/mbed_error.h"
mecatro_prod 0:4a2c9c1f5b9e 26
mecatro_prod 0:4a2c9c1f5b9e 27 namespace rtos {
mecatro_prod 0:4a2c9c1f5b9e 28
mecatro_prod 0:4a2c9c1f5b9e 29 Mutex::Mutex() {
mecatro_prod 0:4a2c9c1f5b9e 30 #ifdef CMSIS_OS_RTX
mecatro_prod 0:4a2c9c1f5b9e 31 memset(_mutex_data, 0, sizeof(_mutex_data));
mecatro_prod 0:4a2c9c1f5b9e 32 _osMutexDef.mutex = _mutex_data;
mecatro_prod 0:4a2c9c1f5b9e 33 #endif
mecatro_prod 0:4a2c9c1f5b9e 34 _osMutexId = osMutexCreate(&_osMutexDef);
mecatro_prod 0:4a2c9c1f5b9e 35 if (_osMutexId == NULL) {
mecatro_prod 0:4a2c9c1f5b9e 36 error("Error initializing the mutex object\n");
mecatro_prod 0:4a2c9c1f5b9e 37 }
mecatro_prod 0:4a2c9c1f5b9e 38 }
mecatro_prod 0:4a2c9c1f5b9e 39
mecatro_prod 0:4a2c9c1f5b9e 40 osStatus Mutex::lock(uint32_t millisec) {
mecatro_prod 0:4a2c9c1f5b9e 41 return osMutexWait(_osMutexId, millisec);
mecatro_prod 0:4a2c9c1f5b9e 42 }
mecatro_prod 0:4a2c9c1f5b9e 43
mecatro_prod 0:4a2c9c1f5b9e 44 bool Mutex::trylock() {
mecatro_prod 0:4a2c9c1f5b9e 45 return (osMutexWait(_osMutexId, 0) == osOK);
mecatro_prod 0:4a2c9c1f5b9e 46 }
mecatro_prod 0:4a2c9c1f5b9e 47
mecatro_prod 0:4a2c9c1f5b9e 48 osStatus Mutex::unlock() {
mecatro_prod 0:4a2c9c1f5b9e 49 return osMutexRelease(_osMutexId);
mecatro_prod 0:4a2c9c1f5b9e 50 }
mecatro_prod 0:4a2c9c1f5b9e 51
mecatro_prod 0:4a2c9c1f5b9e 52 Mutex::~Mutex() {
mecatro_prod 0:4a2c9c1f5b9e 53 osMutexDelete(_osMutexId);
mecatro_prod 0:4a2c9c1f5b9e 54 }
mecatro_prod 0:4a2c9c1f5b9e 55
mecatro_prod 0:4a2c9c1f5b9e 56 }