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rtos/rtos/Mutex.cpp@1:d96dbedaebdb, 2016-11-04 (annotated)

Committer:
nexpaq
Date:
Fri Nov 04 20:54:50 2016 +0000
Revision:
1:d96dbedaebdb
Parent:
0:6c56fb4bc5f0 
Removed extra directories for other platforms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 0:6c56fb4bc5f0 1 /* mbed Microcontroller Library
nexpaq 0:6c56fb4bc5f0 2 * Copyright (c) 2006-2012 ARM Limited
nexpaq 0:6c56fb4bc5f0 3 *
nexpaq 0:6c56fb4bc5f0 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
nexpaq 0:6c56fb4bc5f0 5 * of this software and associated documentation files (the "Software"), to deal
nexpaq 0:6c56fb4bc5f0 6 * in the Software without restriction, including without limitation the rights
nexpaq 0:6c56fb4bc5f0 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
nexpaq 0:6c56fb4bc5f0 8 * copies of the Software, and to permit persons to whom the Software is
nexpaq 0:6c56fb4bc5f0 9 * furnished to do so, subject to the following conditions:
nexpaq 0:6c56fb4bc5f0 10 *
nexpaq 0:6c56fb4bc5f0 11 * The above copyright notice and this permission notice shall be included in
nexpaq 0:6c56fb4bc5f0 12 * all copies or substantial portions of the Software.
nexpaq 0:6c56fb4bc5f0 13 *
nexpaq 0:6c56fb4bc5f0 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
nexpaq 0:6c56fb4bc5f0 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
nexpaq 0:6c56fb4bc5f0 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
nexpaq 0:6c56fb4bc5f0 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
nexpaq 0:6c56fb4bc5f0 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
nexpaq 0:6c56fb4bc5f0 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
nexpaq 0:6c56fb4bc5f0 20 * SOFTWARE.
nexpaq 0:6c56fb4bc5f0 21 */
nexpaq 0:6c56fb4bc5f0 22 #include "Mutex.h"
nexpaq 0:6c56fb4bc5f0 23
nexpaq 0:6c56fb4bc5f0 24 #include <string.h>
nexpaq 0:6c56fb4bc5f0 25 #include "mbed_error.h"
nexpaq 0:6c56fb4bc5f0 26
nexpaq 0:6c56fb4bc5f0 27 namespace rtos {
nexpaq 0:6c56fb4bc5f0 28
nexpaq 0:6c56fb4bc5f0 29 Mutex::Mutex() {
nexpaq 0:6c56fb4bc5f0 30 #ifdef CMSIS_OS_RTX
nexpaq 0:6c56fb4bc5f0 31 memset(_mutex_data, 0, sizeof(_mutex_data));
nexpaq 0:6c56fb4bc5f0 32 _osMutexDef.mutex = _mutex_data;
nexpaq 0:6c56fb4bc5f0 33 #endif
nexpaq 0:6c56fb4bc5f0 34 _osMutexId = osMutexCreate(&_osMutexDef);
nexpaq 0:6c56fb4bc5f0 35 if (_osMutexId == NULL) {
nexpaq 0:6c56fb4bc5f0 36 error("Error initializing the mutex object\n");
nexpaq 0:6c56fb4bc5f0 37 }
nexpaq 0:6c56fb4bc5f0 38 }
nexpaq 0:6c56fb4bc5f0 39
nexpaq 0:6c56fb4bc5f0 40 osStatus Mutex::lock(uint32_t millisec) {
nexpaq 0:6c56fb4bc5f0 41 return osMutexWait(_osMutexId, millisec);
nexpaq 0:6c56fb4bc5f0 42 }
nexpaq 0:6c56fb4bc5f0 43
nexpaq 0:6c56fb4bc5f0 44 bool Mutex::trylock() {
nexpaq 0:6c56fb4bc5f0 45 return (osMutexWait(_osMutexId, 0) == osOK);
nexpaq 0:6c56fb4bc5f0 46 }
nexpaq 0:6c56fb4bc5f0 47
nexpaq 0:6c56fb4bc5f0 48 osStatus Mutex::unlock() {
nexpaq 0:6c56fb4bc5f0 49 return osMutexRelease(_osMutexId);
nexpaq 0:6c56fb4bc5f0 50 }
nexpaq 0:6c56fb4bc5f0 51
nexpaq 0:6c56fb4bc5f0 52 Mutex::~Mutex() {
nexpaq 0:6c56fb4bc5f0 53 osMutexDelete(_osMutexId);
nexpaq 0:6c56fb4bc5f0 54 }
nexpaq 0:6c56fb4bc5f0 55
nexpaq 0:6c56fb4bc5f0 56 }