u-blox / Mbed 2 deprecated IBMIoTClientEthernetExample

Port to C027 (using AppShield and Ethernet)

Dependencies:   C12832 EthernetInterface LM75B MMA7660 MQTT mbed-rtos mbed

Fork of IBMIoTClientEthernetExample by IBM Watson IoT

mbed-rtos/rtos/MemoryPool.h@6:37b6d0d56190, 2014-08-20 (annotated)

Committer:
samdanbury
Date:
Wed Aug 20 12:45:14 2014 +0000
Revision:
6:37b6d0d56190
Code completely changed to improve the structure, flow and memory usage of the application

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samdanbury 6:37b6d0d56190 1 /* mbed Microcontroller Library
samdanbury 6:37b6d0d56190 2 * Copyright (c) 2006-2012 ARM Limited
samdanbury 6:37b6d0d56190 3 *
samdanbury 6:37b6d0d56190 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
samdanbury 6:37b6d0d56190 5 * of this software and associated documentation files (the "Software"), to deal
samdanbury 6:37b6d0d56190 6 * in the Software without restriction, including without limitation the rights
samdanbury 6:37b6d0d56190 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
samdanbury 6:37b6d0d56190 8 * copies of the Software, and to permit persons to whom the Software is
samdanbury 6:37b6d0d56190 9 * furnished to do so, subject to the following conditions:
samdanbury 6:37b6d0d56190 10 *
samdanbury 6:37b6d0d56190 11 * The above copyright notice and this permission notice shall be included in
samdanbury 6:37b6d0d56190 12 * all copies or substantial portions of the Software.
samdanbury 6:37b6d0d56190 13 *
samdanbury 6:37b6d0d56190 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
samdanbury 6:37b6d0d56190 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
samdanbury 6:37b6d0d56190 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
samdanbury 6:37b6d0d56190 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
samdanbury 6:37b6d0d56190 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samdanbury 6:37b6d0d56190 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
samdanbury 6:37b6d0d56190 20 * SOFTWARE.
samdanbury 6:37b6d0d56190 21 */
samdanbury 6:37b6d0d56190 22 #ifndef MEMORYPOOL_H
samdanbury 6:37b6d0d56190 23 #define MEMORYPOOL_H
samdanbury 6:37b6d0d56190 24
samdanbury 6:37b6d0d56190 25 #include <stdint.h>
samdanbury 6:37b6d0d56190 26 #include <string.h>
samdanbury 6:37b6d0d56190 27
samdanbury 6:37b6d0d56190 28 #include "cmsis_os.h"
samdanbury 6:37b6d0d56190 29
samdanbury 6:37b6d0d56190 30 namespace rtos {
samdanbury 6:37b6d0d56190 31
samdanbury 6:37b6d0d56190 32 /** Define and manage fixed-size memory pools of objects of a given type.
samdanbury 6:37b6d0d56190 33 @tparam T data type of a single object (element).
samdanbury 6:37b6d0d56190 34 @tparam queue_sz maximum number of objects (elements) in the memory pool.
samdanbury 6:37b6d0d56190 35 */
samdanbury 6:37b6d0d56190 36 template<typename T, uint32_t pool_sz>
samdanbury 6:37b6d0d56190 37 class MemoryPool {
samdanbury 6:37b6d0d56190 38 public:
samdanbury 6:37b6d0d56190 39 /** Create and Initialize a memory pool. */
samdanbury 6:37b6d0d56190 40 MemoryPool() {
samdanbury 6:37b6d0d56190 41 #ifdef CMSIS_OS_RTX
samdanbury 6:37b6d0d56190 42 memset(_pool_m, 0, sizeof(_pool_m));
samdanbury 6:37b6d0d56190 43 _pool_def.pool = _pool_m;
samdanbury 6:37b6d0d56190 44
samdanbury 6:37b6d0d56190 45 _pool_def.pool_sz = pool_sz;
samdanbury 6:37b6d0d56190 46 _pool_def.item_sz = sizeof(T);
samdanbury 6:37b6d0d56190 47 #endif
samdanbury 6:37b6d0d56190 48 _pool_id = osPoolCreate(&_pool_def);
samdanbury 6:37b6d0d56190 49 }
samdanbury 6:37b6d0d56190 50
samdanbury 6:37b6d0d56190 51 /** Allocate a memory block of type T from a memory pool.
samdanbury 6:37b6d0d56190 52 @return address of the allocated memory block or NULL in case of no memory available.
samdanbury 6:37b6d0d56190 53 */
samdanbury 6:37b6d0d56190 54 T* alloc(void) {
samdanbury 6:37b6d0d56190 55 return (T*)osPoolAlloc(_pool_id);
samdanbury 6:37b6d0d56190 56 }
samdanbury 6:37b6d0d56190 57
samdanbury 6:37b6d0d56190 58 /** Allocate a memory block of type T from a memory pool and set memory block to zero.
samdanbury 6:37b6d0d56190 59 @return address of the allocated memory block or NULL in case of no memory available.
samdanbury 6:37b6d0d56190 60 */
samdanbury 6:37b6d0d56190 61 T* calloc(void) {
samdanbury 6:37b6d0d56190 62 return (T*)osPoolCAlloc(_pool_id);
samdanbury 6:37b6d0d56190 63 }
samdanbury 6:37b6d0d56190 64
samdanbury 6:37b6d0d56190 65 /** Return an allocated memory block back to a specific memory pool.
samdanbury 6:37b6d0d56190 66 @param address of the allocated memory block that is returned to the memory pool.
samdanbury 6:37b6d0d56190 67 @return status code that indicates the execution status of the function.
samdanbury 6:37b6d0d56190 68 */
samdanbury 6:37b6d0d56190 69 osStatus free(T *block) {
samdanbury 6:37b6d0d56190 70 return osPoolFree(_pool_id, (void*)block);
samdanbury 6:37b6d0d56190 71 }
samdanbury 6:37b6d0d56190 72
samdanbury 6:37b6d0d56190 73 private:
samdanbury 6:37b6d0d56190 74 osPoolId _pool_id;
samdanbury 6:37b6d0d56190 75 osPoolDef_t _pool_def;
samdanbury 6:37b6d0d56190 76 #ifdef CMSIS_OS_RTX
samdanbury 6:37b6d0d56190 77 uint32_t _pool_m[3+((sizeof(T)+3)/4)*(pool_sz)];
samdanbury 6:37b6d0d56190 78 #endif
samdanbury 6:37b6d0d56190 79 };
samdanbury 6:37b6d0d56190 80
samdanbury 6:37b6d0d56190 81 }
samdanbury 6:37b6d0d56190 82 #endif