Hiruka Hana / Gyro_Accelerometre

Programme gyro_accelero avec acquisition accelero + calcul téta

Dependents:   Gyro_Accelerometre2

rtos/Mutex.h@0:07281ea3b26b, 2018-02-20 (annotated)

Committer:
SandrineO
Date:
Tue Feb 20 15:58:26 2018 +0000
Revision:
0:07281ea3b26b
temps r?el

Who changed what in which revision?

UserRevisionLine numberNew contents of line
SandrineO 0:07281ea3b26b 1 /* mbed Microcontroller Library
SandrineO 0:07281ea3b26b 2 * Copyright (c) 2006-2012 ARM Limited
SandrineO 0:07281ea3b26b 3 *
SandrineO 0:07281ea3b26b 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
SandrineO 0:07281ea3b26b 5 * of this software and associated documentation files (the "Software"), to deal
SandrineO 0:07281ea3b26b 6 * in the Software without restriction, including without limitation the rights
SandrineO 0:07281ea3b26b 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
SandrineO 0:07281ea3b26b 8 * copies of the Software, and to permit persons to whom the Software is
SandrineO 0:07281ea3b26b 9 * furnished to do so, subject to the following conditions:
SandrineO 0:07281ea3b26b 10 *
SandrineO 0:07281ea3b26b 11 * The above copyright notice and this permission notice shall be included in
SandrineO 0:07281ea3b26b 12 * all copies or substantial portions of the Software.
SandrineO 0:07281ea3b26b 13 *
SandrineO 0:07281ea3b26b 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
SandrineO 0:07281ea3b26b 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
SandrineO 0:07281ea3b26b 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
SandrineO 0:07281ea3b26b 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
SandrineO 0:07281ea3b26b 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
SandrineO 0:07281ea3b26b 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SandrineO 0:07281ea3b26b 20 * SOFTWARE.
SandrineO 0:07281ea3b26b 21 */
SandrineO 0:07281ea3b26b 22 #ifndef MUTEX_H
SandrineO 0:07281ea3b26b 23 #define MUTEX_H
SandrineO 0:07281ea3b26b 24
SandrineO 0:07281ea3b26b 25 #include <stdint.h>
SandrineO 0:07281ea3b26b 26 #include "cmsis_os.h"
SandrineO 0:07281ea3b26b 27
SandrineO 0:07281ea3b26b 28 namespace rtos {
SandrineO 0:07281ea3b26b 29 /** \addtogroup rtos */
SandrineO 0:07281ea3b26b 30 /** @{*/
SandrineO 0:07281ea3b26b 31
SandrineO 0:07281ea3b26b 32 /** The Mutex class is used to synchronise the execution of threads.
SandrineO 0:07281ea3b26b 33 This is for example used to protect access to a shared resource.
SandrineO 0:07281ea3b26b 34 */
SandrineO 0:07281ea3b26b 35 class Mutex {
SandrineO 0:07281ea3b26b 36 public:
SandrineO 0:07281ea3b26b 37 /** Create and Initialize a Mutex object */
SandrineO 0:07281ea3b26b 38 Mutex();
SandrineO 0:07281ea3b26b 39
SandrineO 0:07281ea3b26b 40 /** Wait until a Mutex becomes available.
SandrineO 0:07281ea3b26b 41 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever)
SandrineO 0:07281ea3b26b 42 @return status code that indicates the execution status of the function.
SandrineO 0:07281ea3b26b 43 */
SandrineO 0:07281ea3b26b 44 osStatus lock(uint32_t millisec=osWaitForever);
SandrineO 0:07281ea3b26b 45
SandrineO 0:07281ea3b26b 46 /** Try to lock the mutex, and return immediately
SandrineO 0:07281ea3b26b 47 @return true if the mutex was acquired, false otherwise.
SandrineO 0:07281ea3b26b 48 */
SandrineO 0:07281ea3b26b 49 bool trylock();
SandrineO 0:07281ea3b26b 50
SandrineO 0:07281ea3b26b 51 /** Unlock the mutex that has previously been locked by the same thread
SandrineO 0:07281ea3b26b 52 @return status code that indicates the execution status of the function.
SandrineO 0:07281ea3b26b 53 */
SandrineO 0:07281ea3b26b 54 osStatus unlock();
SandrineO 0:07281ea3b26b 55
SandrineO 0:07281ea3b26b 56 ~Mutex();
SandrineO 0:07281ea3b26b 57
SandrineO 0:07281ea3b26b 58 private:
SandrineO 0:07281ea3b26b 59 osMutexId _osMutexId;
SandrineO 0:07281ea3b26b 60 osMutexDef_t _osMutexDef;
SandrineO 0:07281ea3b26b 61 #ifdef CMSIS_OS_RTX
SandrineO 0:07281ea3b26b 62 #if defined(__MBED_CMSIS_RTOS_CA9) || defined(__MBED_CMSIS_RTOS_CM)
SandrineO 0:07281ea3b26b 63 int32_t _mutex_data[4];
SandrineO 0:07281ea3b26b 64 #else
SandrineO 0:07281ea3b26b 65 int32_t _mutex_data[3];
SandrineO 0:07281ea3b26b 66 #endif
SandrineO 0:07281ea3b26b 67 #endif
SandrineO 0:07281ea3b26b 68 };
SandrineO 0:07281ea3b26b 69
SandrineO 0:07281ea3b26b 70 }
SandrineO 0:07281ea3b26b 71 #endif
SandrineO 0:07281ea3b26b 72
SandrineO 0:07281ea3b26b 73 /** @}*/