mirror of https://github.com/ARMmbed/mbed-os.git
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2006-2012 ARM Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "rtos/Mutex.h"
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#include <string.h>
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#include "platform/mbed_error.h"
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namespace rtos {
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Mutex::Mutex() {
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#ifdef CMSIS_OS_RTX
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memset(_mutex_data, 0, sizeof(_mutex_data));
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_osMutexDef.mutex = _mutex_data;
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#endif
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_osMutexId = osMutexCreate(&_osMutexDef);
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if (_osMutexId == NULL) {
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error("Error initializing the mutex object\n");
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}
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}
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osStatus Mutex::lock(uint32_t millisec) {
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return osMutexWait(_osMutexId, millisec);
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}
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bool Mutex::trylock() {
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return (osMutexWait(_osMutexId, 0) == osOK);
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}
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osStatus Mutex::unlock() {
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return osMutexRelease(_osMutexId);
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}
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Mutex::~Mutex() {
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osMutexDelete(_osMutexId);
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}
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}
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