Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbed-rtos/rtos/MemoryPool.h@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

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mbedAustin 11:cada08fc8a70 1 /* mbed Microcontroller Library
mbedAustin 11:cada08fc8a70 2 * Copyright (c) 2006-2012 ARM Limited
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mbedAustin 11:cada08fc8a70 5 * of this software and associated documentation files (the "Software"), to deal
mbedAustin 11:cada08fc8a70 6 * in the Software without restriction, including without limitation the rights
mbedAustin 11:cada08fc8a70 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbedAustin 11:cada08fc8a70 8 * copies of the Software, and to permit persons to whom the Software is
mbedAustin 11:cada08fc8a70 9 * furnished to do so, subject to the following conditions:
mbedAustin 11:cada08fc8a70 10 *
mbedAustin 11:cada08fc8a70 11 * The above copyright notice and this permission notice shall be included in
mbedAustin 11:cada08fc8a70 12 * all copies or substantial portions of the Software.
mbedAustin 11:cada08fc8a70 13 *
mbedAustin 11:cada08fc8a70 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbedAustin 11:cada08fc8a70 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbedAustin 11:cada08fc8a70 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbedAustin 11:cada08fc8a70 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbedAustin 11:cada08fc8a70 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbedAustin 11:cada08fc8a70 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mbedAustin 11:cada08fc8a70 20 * SOFTWARE.
mbedAustin 11:cada08fc8a70 21 */
mbedAustin 11:cada08fc8a70 22 #ifndef MEMORYPOOL_H
mbedAustin 11:cada08fc8a70 23 #define MEMORYPOOL_H
mbedAustin 11:cada08fc8a70 24
mbedAustin 11:cada08fc8a70 25 #include <stdint.h>
mbedAustin 11:cada08fc8a70 26 #include <string.h>
mbedAustin 11:cada08fc8a70 27
mbedAustin 11:cada08fc8a70 28 #include "cmsis_os.h"
mbedAustin 11:cada08fc8a70 29
mbedAustin 11:cada08fc8a70 30 namespace rtos {
mbedAustin 11:cada08fc8a70 31
mbedAustin 11:cada08fc8a70 32 /** Define and manage fixed-size memory pools of objects of a given type.
mbedAustin 11:cada08fc8a70 33 @tparam T data type of a single object (element).
mbedAustin 11:cada08fc8a70 34 @tparam queue_sz maximum number of objects (elements) in the memory pool.
mbedAustin 11:cada08fc8a70 35 */
mbedAustin 11:cada08fc8a70 36 template<typename T, uint32_t pool_sz>
mbedAustin 11:cada08fc8a70 37 class MemoryPool {
mbedAustin 11:cada08fc8a70 38 public:
mbedAustin 11:cada08fc8a70 39 /** Create and Initialize a memory pool. */
mbedAustin 11:cada08fc8a70 40 MemoryPool() {
mbedAustin 11:cada08fc8a70 41 #ifdef CMSIS_OS_RTX
mbedAustin 11:cada08fc8a70 42 memset(_pool_m, 0, sizeof(_pool_m));
mbedAustin 11:cada08fc8a70 43 _pool_def.pool = _pool_m;
mbedAustin 11:cada08fc8a70 44
mbedAustin 11:cada08fc8a70 45 _pool_def.pool_sz = pool_sz;
mbedAustin 11:cada08fc8a70 46 _pool_def.item_sz = sizeof(T);
mbedAustin 11:cada08fc8a70 47 #endif
mbedAustin 11:cada08fc8a70 48 _pool_id = osPoolCreate(&_pool_def);
mbedAustin 11:cada08fc8a70 49 }
mbedAustin 11:cada08fc8a70 50
mbedAustin 11:cada08fc8a70 51 /** Allocate a memory block of type T from a memory pool.
mbedAustin 11:cada08fc8a70 52 @return address of the allocated memory block or NULL in case of no memory available.
mbedAustin 11:cada08fc8a70 53 */
mbedAustin 11:cada08fc8a70 54 T* alloc(void) {
mbedAustin 11:cada08fc8a70 55 return (T*)osPoolAlloc(_pool_id);
mbedAustin 11:cada08fc8a70 56 }
mbedAustin 11:cada08fc8a70 57
mbedAustin 11:cada08fc8a70 58 /** Allocate a memory block of type T from a memory pool and set memory block to zero.
mbedAustin 11:cada08fc8a70 59 @return address of the allocated memory block or NULL in case of no memory available.
mbedAustin 11:cada08fc8a70 60 */
mbedAustin 11:cada08fc8a70 61 T* calloc(void) {
mbedAustin 11:cada08fc8a70 62 return (T*)osPoolCAlloc(_pool_id);
mbedAustin 11:cada08fc8a70 63 }
mbedAustin 11:cada08fc8a70 64
mbedAustin 11:cada08fc8a70 65 /** Return an allocated memory block back to a specific memory pool.
mbedAustin 11:cada08fc8a70 66 @param address of the allocated memory block that is returned to the memory pool.
mbedAustin 11:cada08fc8a70 67 @return status code that indicates the execution status of the function.
mbedAustin 11:cada08fc8a70 68 */
mbedAustin 11:cada08fc8a70 69 osStatus free(T *block) {
mbedAustin 11:cada08fc8a70 70 return osPoolFree(_pool_id, (void*)block);
mbedAustin 11:cada08fc8a70 71 }
mbedAustin 11:cada08fc8a70 72
mbedAustin 11:cada08fc8a70 73 private:
mbedAustin 11:cada08fc8a70 74 osPoolId _pool_id;
mbedAustin 11:cada08fc8a70 75 osPoolDef_t _pool_def;
mbedAustin 11:cada08fc8a70 76 #ifdef CMSIS_OS_RTX
mbedAustin 11:cada08fc8a70 77 uint32_t _pool_m[3+((sizeof(T)+3)/4)*(pool_sz)];
mbedAustin 11:cada08fc8a70 78 #endif
mbedAustin 11:cada08fc8a70 79 };
mbedAustin 11:cada08fc8a70 80
mbedAustin 11:cada08fc8a70 81 }
mbedAustin 11:cada08fc8a70 82 #endif