Shoaib Ahmed / Mbed 2 deprecated uzairkhan

Final 350 project

Dependencies:   uzair Camera_LS_Y201 F7_Ethernet LCD_DISCO_F746NG NetworkAPI SDFileSystem mbed

mbed-rtos/rtos/Semaphore.h@0:791a779d6220, 2017-07-31 (annotated)

Committer:
shoaib_ahmed
Date:
Mon Jul 31 09:16:35 2017 +0000
Revision:
0:791a779d6220
final project;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shoaib_ahmed 0:791a779d6220 1 /* mbed Microcontroller Library
shoaib_ahmed 0:791a779d6220 2 * Copyright (c) 2006-2012 ARM Limited
shoaib_ahmed 0:791a779d6220 3 *
shoaib_ahmed 0:791a779d6220 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
shoaib_ahmed 0:791a779d6220 5 * of this software and associated documentation files (the "Software"), to deal
shoaib_ahmed 0:791a779d6220 6 * in the Software without restriction, including without limitation the rights
shoaib_ahmed 0:791a779d6220 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
shoaib_ahmed 0:791a779d6220 8 * copies of the Software, and to permit persons to whom the Software is
shoaib_ahmed 0:791a779d6220 9 * furnished to do so, subject to the following conditions:
shoaib_ahmed 0:791a779d6220 10 *
shoaib_ahmed 0:791a779d6220 11 * The above copyright notice and this permission notice shall be included in
shoaib_ahmed 0:791a779d6220 12 * all copies or substantial portions of the Software.
shoaib_ahmed 0:791a779d6220 13 *
shoaib_ahmed 0:791a779d6220 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
shoaib_ahmed 0:791a779d6220 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
shoaib_ahmed 0:791a779d6220 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
shoaib_ahmed 0:791a779d6220 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
shoaib_ahmed 0:791a779d6220 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
shoaib_ahmed 0:791a779d6220 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
shoaib_ahmed 0:791a779d6220 20 * SOFTWARE.
shoaib_ahmed 0:791a779d6220 21 */
shoaib_ahmed 0:791a779d6220 22 #ifndef SEMAPHORE_H
shoaib_ahmed 0:791a779d6220 23 #define SEMAPHORE_H
shoaib_ahmed 0:791a779d6220 24
shoaib_ahmed 0:791a779d6220 25 #include <stdint.h>
shoaib_ahmed 0:791a779d6220 26 #include "cmsis_os.h"
shoaib_ahmed 0:791a779d6220 27
shoaib_ahmed 0:791a779d6220 28 namespace rtos {
shoaib_ahmed 0:791a779d6220 29
shoaib_ahmed 0:791a779d6220 30 /** The Semaphore class is used to manage and protect access to a set of shared resources. */
shoaib_ahmed 0:791a779d6220 31 class Semaphore {
shoaib_ahmed 0:791a779d6220 32 public:
shoaib_ahmed 0:791a779d6220 33 /** Create and Initialize a Semaphore object used for managing resources.
shoaib_ahmed 0:791a779d6220 34 @param number of available resources; maximum index value is (count-1).
shoaib_ahmed 0:791a779d6220 35 */
shoaib_ahmed 0:791a779d6220 36 Semaphore(int32_t count);
shoaib_ahmed 0:791a779d6220 37
shoaib_ahmed 0:791a779d6220 38 /** Wait until a Semaphore resource becomes available.
shoaib_ahmed 0:791a779d6220 39 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever).
shoaib_ahmed 0:791a779d6220 40 @return number of available tokens, or -1 in case of incorrect parameters
shoaib_ahmed 0:791a779d6220 41 */
shoaib_ahmed 0:791a779d6220 42 int32_t wait(uint32_t millisec=osWaitForever);
shoaib_ahmed 0:791a779d6220 43
shoaib_ahmed 0:791a779d6220 44 /** Release a Semaphore resource that was obtain with Semaphore::wait.
shoaib_ahmed 0:791a779d6220 45 @return status code that indicates the execution status of the function.
shoaib_ahmed 0:791a779d6220 46 */
shoaib_ahmed 0:791a779d6220 47 osStatus release(void);
shoaib_ahmed 0:791a779d6220 48
shoaib_ahmed 0:791a779d6220 49 ~Semaphore();
shoaib_ahmed 0:791a779d6220 50
shoaib_ahmed 0:791a779d6220 51 private:
shoaib_ahmed 0:791a779d6220 52 osSemaphoreId _osSemaphoreId;
shoaib_ahmed 0:791a779d6220 53 osSemaphoreDef_t _osSemaphoreDef;
shoaib_ahmed 0:791a779d6220 54 #ifdef CMSIS_OS_RTX
shoaib_ahmed 0:791a779d6220 55 uint32_t _semaphore_data[2];
shoaib_ahmed 0:791a779d6220 56 #endif
shoaib_ahmed 0:791a779d6220 57 };
shoaib_ahmed 0:791a779d6220 58
shoaib_ahmed 0:791a779d6220 59 }
shoaib_ahmed 0:791a779d6220 60 #endif