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mbed client lightswitch demo
Dependencies: mbed Socket lwip-eth lwip-sys lwip
Fork of mbed-client-classic-example-lwip by
Diff: mbed-rtos/rtos/Queue.h
- Revision:
- 11:cada08fc8a70
diff -r 1280c4c21987 -r cada08fc8a70 mbed-rtos/rtos/Queue.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos/rtos/Queue.h Thu Jun 09 17:08:36 2016 +0000 @@ -0,0 +1,81 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2012 ARM Limited + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef QUEUE_H +#define QUEUE_H + +#include <stdint.h> +#include <string.h> + +#include "cmsis_os.h" +#include "mbed_error.h" + +namespace rtos { + +/** The Queue class allow to control, send, receive, or wait for messages. + A message can be a integer or pointer value to a certain type T that is send + to a thread or interrupt service routine. + @tparam T data type of a single message element. + @tparam queue_sz maximum number of messages in queue. +*/ +template<typename T, uint32_t queue_sz> +class Queue { +public: + /** Create and initialise a message Queue. */ + Queue() { + #ifdef CMSIS_OS_RTX + memset(_queue_q, 0, sizeof(_queue_q)); + _queue_def.pool = _queue_q; + _queue_def.queue_sz = queue_sz; + #endif + _queue_id = osMessageCreate(&_queue_def, NULL); + if (_queue_id == NULL) { + error("Error initialising the queue object\n"); + } + } + + /** Put a message in a Queue. + @param data message pointer. + @param millisec timeout value or 0 in case of no time-out. (default: 0) + @return status code that indicates the execution status of the function. + */ + osStatus put(T* data, uint32_t millisec=0) { + return osMessagePut(_queue_id, (uint32_t)data, millisec); + } + + /** Get a message or Wait for a message from a Queue. + @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever). + @return event information that includes the message and the status code. + */ + osEvent get(uint32_t millisec=osWaitForever) { + return osMessageGet(_queue_id, millisec); + } + +private: + osMessageQId _queue_id; + osMessageQDef_t _queue_def; +#ifdef CMSIS_OS_RTX + uint32_t _queue_q[4+(queue_sz)]; +#endif +}; + +} +#endif