Dave Lu / FYDP_Final2

Dependencies:   Servo mbed

Fork of FYDP_Final2 by Mark Vandermeulen

mbed/mbed-rtos/rtos/Mutex.cpp@5:d2e955a94940, 2015-03-25 (annotated)

Committer:
tntmarket
Date:
Wed Mar 25 09:58:50 2015 +0000
Revision:
5:d2e955a94940
Parent:
0:21019d94ad33 
only imu output

Who changed what in which revision?

UserRevisionLine numberNew contents of line
majik 0:21019d94ad33 1 /* mbed Microcontroller Library
majik 0:21019d94ad33 2 * Copyright (c) 2006-2012 ARM Limited
majik 0:21019d94ad33 3 *
majik 0:21019d94ad33 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
majik 0:21019d94ad33 5 * of this software and associated documentation files (the "Software"), to deal
majik 0:21019d94ad33 6 * in the Software without restriction, including without limitation the rights
majik 0:21019d94ad33 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
majik 0:21019d94ad33 8 * copies of the Software, and to permit persons to whom the Software is
majik 0:21019d94ad33 9 * furnished to do so, subject to the following conditions:
majik 0:21019d94ad33 10 *
majik 0:21019d94ad33 11 * The above copyright notice and this permission notice shall be included in
majik 0:21019d94ad33 12 * all copies or substantial portions of the Software.
majik 0:21019d94ad33 13 *
majik 0:21019d94ad33 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
majik 0:21019d94ad33 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
majik 0:21019d94ad33 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
majik 0:21019d94ad33 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
majik 0:21019d94ad33 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
majik 0:21019d94ad33 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
majik 0:21019d94ad33 20 * SOFTWARE.
majik 0:21019d94ad33 21 */
majik 0:21019d94ad33 22 #include "Mutex.h"
majik 0:21019d94ad33 23
majik 0:21019d94ad33 24 #include <string.h>
majik 0:21019d94ad33 25 #include "error.h"
majik 0:21019d94ad33 26
majik 0:21019d94ad33 27 namespace rtos {
majik 0:21019d94ad33 28
majik 0:21019d94ad33 29 Mutex::Mutex() {
majik 0:21019d94ad33 30 #ifdef CMSIS_OS_RTX
majik 0:21019d94ad33 31 memset(_mutex_data, 0, sizeof(_mutex_data));
majik 0:21019d94ad33 32 _osMutexDef.mutex = _mutex_data;
majik 0:21019d94ad33 33 #endif
majik 0:21019d94ad33 34 _osMutexId = osMutexCreate(&_osMutexDef);
majik 0:21019d94ad33 35 if (_osMutexId == NULL) {
majik 0:21019d94ad33 36 error("Error initializing the mutex object\n");
majik 0:21019d94ad33 37 }
majik 0:21019d94ad33 38 }
majik 0:21019d94ad33 39
majik 0:21019d94ad33 40 osStatus Mutex::lock(uint32_t millisec) {
majik 0:21019d94ad33 41 return osMutexWait(_osMutexId, millisec);
majik 0:21019d94ad33 42 }
majik 0:21019d94ad33 43
majik 0:21019d94ad33 44 bool Mutex::trylock() {
majik 0:21019d94ad33 45 return (osMutexWait(_osMutexId, 0) == osOK);
majik 0:21019d94ad33 46 }
majik 0:21019d94ad33 47
majik 0:21019d94ad33 48 osStatus Mutex::unlock() {
majik 0:21019d94ad33 49 return osMutexRelease(_osMutexId);
majik 0:21019d94ad33 50 }
majik 0:21019d94ad33 51
majik 0:21019d94ad33 52 Mutex::~Mutex() {
majik 0:21019d94ad33 53 osMutexDelete(_osMutexId);
majik 0:21019d94ad33 54 }
majik 0:21019d94ad33 55
majik 0:21019d94ad33 56 }