Anasse Abdoul / Mbed 2 deprecated Test_MPU6050

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Dependencies:   mbed

mbed-rtos/rtos/Mutex.h@0:a59a3d743804, 2022-03-31 (annotated)

Committer:
anasse
Date:
Thu Mar 31 07:43:50 2022 +0000
Revision:
0:a59a3d743804
vers0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
anasse 0:a59a3d743804 1 /* mbed Microcontroller Library
anasse 0:a59a3d743804 2 * Copyright (c) 2006-2012 ARM Limited
anasse 0:a59a3d743804 3 *
anasse 0:a59a3d743804 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
anasse 0:a59a3d743804 5 * of this software and associated documentation files (the "Software"), to deal
anasse 0:a59a3d743804 6 * in the Software without restriction, including without limitation the rights
anasse 0:a59a3d743804 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
anasse 0:a59a3d743804 8 * copies of the Software, and to permit persons to whom the Software is
anasse 0:a59a3d743804 9 * furnished to do so, subject to the following conditions:
anasse 0:a59a3d743804 10 *
anasse 0:a59a3d743804 11 * The above copyright notice and this permission notice shall be included in
anasse 0:a59a3d743804 12 * all copies or substantial portions of the Software.
anasse 0:a59a3d743804 13 *
anasse 0:a59a3d743804 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
anasse 0:a59a3d743804 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
anasse 0:a59a3d743804 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
anasse 0:a59a3d743804 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
anasse 0:a59a3d743804 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
anasse 0:a59a3d743804 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
anasse 0:a59a3d743804 20 * SOFTWARE.
anasse 0:a59a3d743804 21 */
anasse 0:a59a3d743804 22 #ifndef MUTEX_H
anasse 0:a59a3d743804 23 #define MUTEX_H
anasse 0:a59a3d743804 24
anasse 0:a59a3d743804 25 #include <stdint.h>
anasse 0:a59a3d743804 26 #include "cmsis_os.h"
anasse 0:a59a3d743804 27
anasse 0:a59a3d743804 28 namespace rtos {
anasse 0:a59a3d743804 29 /** \addtogroup rtos */
anasse 0:a59a3d743804 30 /** @{*/
anasse 0:a59a3d743804 31
anasse 0:a59a3d743804 32 /** The Mutex class is used to synchronise the execution of threads.
anasse 0:a59a3d743804 33 This is for example used to protect access to a shared resource.
anasse 0:a59a3d743804 34 */
anasse 0:a59a3d743804 35 class Mutex {
anasse 0:a59a3d743804 36 public:
anasse 0:a59a3d743804 37 /** Create and Initialize a Mutex object */
anasse 0:a59a3d743804 38 Mutex();
anasse 0:a59a3d743804 39
anasse 0:a59a3d743804 40 /** Wait until a Mutex becomes available.
anasse 0:a59a3d743804 41 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever)
anasse 0:a59a3d743804 42 @return status code that indicates the execution status of the function.
anasse 0:a59a3d743804 43 */
anasse 0:a59a3d743804 44 osStatus lock(uint32_t millisec=osWaitForever);
anasse 0:a59a3d743804 45
anasse 0:a59a3d743804 46 /** Try to lock the mutex, and return immediately
anasse 0:a59a3d743804 47 @return true if the mutex was acquired, false otherwise.
anasse 0:a59a3d743804 48 */
anasse 0:a59a3d743804 49 bool trylock();
anasse 0:a59a3d743804 50
anasse 0:a59a3d743804 51 /** Unlock the mutex that has previously been locked by the same thread
anasse 0:a59a3d743804 52 @return status code that indicates the execution status of the function.
anasse 0:a59a3d743804 53 */
anasse 0:a59a3d743804 54 osStatus unlock();
anasse 0:a59a3d743804 55
anasse 0:a59a3d743804 56 ~Mutex();
anasse 0:a59a3d743804 57
anasse 0:a59a3d743804 58 private:
anasse 0:a59a3d743804 59 osMutexId _osMutexId;
anasse 0:a59a3d743804 60 osMutexDef_t _osMutexDef;
anasse 0:a59a3d743804 61 #ifdef CMSIS_OS_RTX
anasse 0:a59a3d743804 62 #if defined(__MBED_CMSIS_RTOS_CA9) || defined(__MBED_CMSIS_RTOS_CM)
anasse 0:a59a3d743804 63 int32_t _mutex_data[4];
anasse 0:a59a3d743804 64 #else
anasse 0:a59a3d743804 65 int32_t _mutex_data[3];
anasse 0:a59a3d743804 66 #endif
anasse 0:a59a3d743804 67 #endif
anasse 0:a59a3d743804 68 };
anasse 0:a59a3d743804 69
anasse 0:a59a3d743804 70 }
anasse 0:a59a3d743804 71 #endif
anasse 0:a59a3d743804 72
anasse 0:a59a3d743804 73 /** @}*/