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