the do / gr-peach-opencv-project

Opencv 3.1 project on GR-PEACH board

Fork of gr-peach-opencv-project by the do

mbed-rtos/rtos/Mutex.h@170:54ff26da7eb6, 2017-07-04 (annotated)

Committer:
thedo
Date:
Tue Jul 04 06:23:13 2017 +0000
Revision:
170:54ff26da7eb6
Parent:
166:3a9487d57a5c 
project opencv 3.1 on GR PEACH board, no use SD card.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
thedo 166:3a9487d57a5c 1 /* mbed Microcontroller Library
thedo 166:3a9487d57a5c 2 * Copyright (c) 2006-2012 ARM Limited
thedo 166:3a9487d57a5c 3 *
thedo 166:3a9487d57a5c 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
thedo 166:3a9487d57a5c 5 * of this software and associated documentation files (the "Software"), to deal
thedo 166:3a9487d57a5c 6 * in the Software without restriction, including without limitation the rights
thedo 166:3a9487d57a5c 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
thedo 166:3a9487d57a5c 8 * copies of the Software, and to permit persons to whom the Software is
thedo 166:3a9487d57a5c 9 * furnished to do so, subject to the following conditions:
thedo 166:3a9487d57a5c 10 *
thedo 166:3a9487d57a5c 11 * The above copyright notice and this permission notice shall be included in
thedo 166:3a9487d57a5c 12 * all copies or substantial portions of the Software.
thedo 166:3a9487d57a5c 13 *
thedo 166:3a9487d57a5c 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
thedo 166:3a9487d57a5c 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
thedo 166:3a9487d57a5c 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
thedo 166:3a9487d57a5c 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
thedo 166:3a9487d57a5c 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
thedo 166:3a9487d57a5c 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
thedo 166:3a9487d57a5c 20 * SOFTWARE.
thedo 166:3a9487d57a5c 21 */
thedo 166:3a9487d57a5c 22 #ifndef MUTEX_H
thedo 166:3a9487d57a5c 23 #define MUTEX_H
thedo 166:3a9487d57a5c 24
thedo 166:3a9487d57a5c 25 #include <stdint.h>
thedo 166:3a9487d57a5c 26 #include "cmsis_os.h"
thedo 166:3a9487d57a5c 27
thedo 166:3a9487d57a5c 28 namespace rtos {
thedo 166:3a9487d57a5c 29 /** \addtogroup rtos */
thedo 166:3a9487d57a5c 30 /** @{*/
thedo 166:3a9487d57a5c 31
thedo 166:3a9487d57a5c 32 /** The Mutex class is used to synchronise the execution of threads.
thedo 166:3a9487d57a5c 33 This is for example used to protect access to a shared resource.
thedo 166:3a9487d57a5c 34 */
thedo 166:3a9487d57a5c 35 class Mutex {
thedo 166:3a9487d57a5c 36 public:
thedo 166:3a9487d57a5c 37 /** Create and Initialize a Mutex object */
thedo 166:3a9487d57a5c 38 Mutex();
thedo 166:3a9487d57a5c 39
thedo 166:3a9487d57a5c 40 /** Wait until a Mutex becomes available.
thedo 166:3a9487d57a5c 41 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever)
thedo 166:3a9487d57a5c 42 @return status code that indicates the execution status of the function.
thedo 166:3a9487d57a5c 43 */
thedo 166:3a9487d57a5c 44 osStatus lock(uint32_t millisec=osWaitForever);
thedo 166:3a9487d57a5c 45
thedo 166:3a9487d57a5c 46 /** Try to lock the mutex, and return immediately
thedo 166:3a9487d57a5c 47 @return true if the mutex was acquired, false otherwise.
thedo 166:3a9487d57a5c 48 */
thedo 166:3a9487d57a5c 49 bool trylock();
thedo 166:3a9487d57a5c 50
thedo 166:3a9487d57a5c 51 /** Unlock the mutex that has previously been locked by the same thread
thedo 166:3a9487d57a5c 52 @return status code that indicates the execution status of the function.
thedo 166:3a9487d57a5c 53 */
thedo 166:3a9487d57a5c 54 osStatus unlock();
thedo 166:3a9487d57a5c 55
thedo 166:3a9487d57a5c 56 ~Mutex();
thedo 166:3a9487d57a5c 57
thedo 166:3a9487d57a5c 58 private:
thedo 166:3a9487d57a5c 59 osMutexId _osMutexId;
thedo 166:3a9487d57a5c 60 osMutexDef_t _osMutexDef;
thedo 166:3a9487d57a5c 61 #ifdef CMSIS_OS_RTX
thedo 166:3a9487d57a5c 62 #if defined(__MBED_CMSIS_RTOS_CA9) || defined(__MBED_CMSIS_RTOS_CM)
thedo 166:3a9487d57a5c 63 int32_t _mutex_data[4];
thedo 166:3a9487d57a5c 64 #else
thedo 166:3a9487d57a5c 65 int32_t _mutex_data[3];
thedo 166:3a9487d57a5c 66 #endif
thedo 166:3a9487d57a5c 67 #endif
thedo 166:3a9487d57a5c 68 };
thedo 166:3a9487d57a5c 69
thedo 166:3a9487d57a5c 70 }
thedo 166:3a9487d57a5c 71 #endif
thedo 166:3a9487d57a5c 72
thedo 166:3a9487d57a5c 73 /** @}*/