Added STM32F030R8
Fork of mbed-rtos by
Embed:
(wiki syntax)
Show/hide line numbers
Semaphore.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2012 ARM Limited 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy 00005 * of this software and associated documentation files (the "Software"), to deal 00006 * in the Software without restriction, including without limitation the rights 00007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 * copies of the Software, and to permit persons to whom the Software is 00009 * furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included in 00012 * all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 00020 * SOFTWARE. 00021 */ 00022 #ifndef SEMAPHORE_H 00023 #define SEMAPHORE_H 00024 00025 #include <stdint.h> 00026 #include "cmsis_os.h" 00027 00028 namespace rtos { 00029 00030 /** The Semaphore class is used to manage and protect access to a set of shared resources. */ 00031 class Semaphore { 00032 public: 00033 /** Create and Initialize a Semaphore object used for managing resources. 00034 @param number of available resources; maximum index value is (count-1). 00035 */ 00036 Semaphore(int32_t count); 00037 00038 /** Wait until a Semaphore resource becomes available. 00039 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever). 00040 @return number of available tokens, or -1 in case of incorrect parameters 00041 */ 00042 int32_t wait(uint32_t millisec=osWaitForever); 00043 00044 /** Release a Semaphore resource that was obtain with Semaphore::wait. 00045 @return status code that indicates the execution status of the function. 00046 */ 00047 osStatus release(void); 00048 00049 ~Semaphore(); 00050 00051 private: 00052 osSemaphoreId _osSemaphoreId; 00053 osSemaphoreDef_t _osSemaphoreDef; 00054 #ifdef CMSIS_OS_RTX 00055 uint32_t _semaphore_data[2]; 00056 #endif 00057 }; 00058 00059 } 00060 #endif
Generated on Wed Jul 13 2022 15:41:41 by 1.7.2