the do / gr-peach-opencv-project

Opencv 3.1 project on GR-PEACH board

Fork of gr-peach-opencv-project by the do

mbed-rtos/rtos/MemoryPool.h@170:54ff26da7eb6, 2017-07-04 (annotated)

Committer:
thedo
Date:
Tue Jul 04 06:23:13 2017 +0000
Revision:
170:54ff26da7eb6
Parent:
166:3a9487d57a5c 
project opencv 3.1 on GR PEACH board, no use SD card.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
thedo 166:3a9487d57a5c 1 /* mbed Microcontroller Library
thedo 166:3a9487d57a5c 2 * Copyright (c) 2006-2012 ARM Limited
thedo 166:3a9487d57a5c 3 *
thedo 166:3a9487d57a5c 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
thedo 166:3a9487d57a5c 5 * of this software and associated documentation files (the "Software"), to deal
thedo 166:3a9487d57a5c 6 * in the Software without restriction, including without limitation the rights
thedo 166:3a9487d57a5c 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
thedo 166:3a9487d57a5c 8 * copies of the Software, and to permit persons to whom the Software is
thedo 166:3a9487d57a5c 9 * furnished to do so, subject to the following conditions:
thedo 166:3a9487d57a5c 10 *
thedo 166:3a9487d57a5c 11 * The above copyright notice and this permission notice shall be included in
thedo 166:3a9487d57a5c 12 * all copies or substantial portions of the Software.
thedo 166:3a9487d57a5c 13 *
thedo 166:3a9487d57a5c 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
thedo 166:3a9487d57a5c 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
thedo 166:3a9487d57a5c 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
thedo 166:3a9487d57a5c 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
thedo 166:3a9487d57a5c 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
thedo 166:3a9487d57a5c 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
thedo 166:3a9487d57a5c 20 * SOFTWARE.
thedo 166:3a9487d57a5c 21 */
thedo 166:3a9487d57a5c 22 #ifndef MEMORYPOOL_H
thedo 166:3a9487d57a5c 23 #define MEMORYPOOL_H
thedo 166:3a9487d57a5c 24
thedo 166:3a9487d57a5c 25 #include <stdint.h>
thedo 166:3a9487d57a5c 26 #include <string.h>
thedo 166:3a9487d57a5c 27
thedo 166:3a9487d57a5c 28 #include "cmsis_os.h"
thedo 166:3a9487d57a5c 29
thedo 166:3a9487d57a5c 30 namespace rtos {
thedo 166:3a9487d57a5c 31 /** \addtogroup rtos */
thedo 166:3a9487d57a5c 32 /** @{*/
thedo 166:3a9487d57a5c 33
thedo 166:3a9487d57a5c 34 /** Define and manage fixed-size memory pools of objects of a given type.
thedo 166:3a9487d57a5c 35 @tparam T data type of a single object (element).
thedo 166:3a9487d57a5c 36 @tparam queue_sz maximum number of objects (elements) in the memory pool.
thedo 166:3a9487d57a5c 37 */
thedo 166:3a9487d57a5c 38 template<typename T, uint32_t pool_sz>
thedo 166:3a9487d57a5c 39 class MemoryPool {
thedo 166:3a9487d57a5c 40 public:
thedo 166:3a9487d57a5c 41 /** Create and Initialize a memory pool. */
thedo 166:3a9487d57a5c 42 MemoryPool() {
thedo 166:3a9487d57a5c 43 #ifdef CMSIS_OS_RTX
thedo 166:3a9487d57a5c 44 memset(_pool_m, 0, sizeof(_pool_m));
thedo 166:3a9487d57a5c 45 _pool_def.pool = _pool_m;
thedo 166:3a9487d57a5c 46
thedo 166:3a9487d57a5c 47 _pool_def.pool_sz = pool_sz;
thedo 166:3a9487d57a5c 48 _pool_def.item_sz = sizeof(T);
thedo 166:3a9487d57a5c 49 #endif
thedo 166:3a9487d57a5c 50 _pool_id = osPoolCreate(&_pool_def);
thedo 166:3a9487d57a5c 51 }
thedo 166:3a9487d57a5c 52
thedo 166:3a9487d57a5c 53 /** Allocate a memory block of type T from a memory pool.
thedo 166:3a9487d57a5c 54 @return address of the allocated memory block or NULL in case of no memory available.
thedo 166:3a9487d57a5c 55 */
thedo 166:3a9487d57a5c 56 T* alloc(void) {
thedo 166:3a9487d57a5c 57 return (T*)osPoolAlloc(_pool_id);
thedo 166:3a9487d57a5c 58 }
thedo 166:3a9487d57a5c 59
thedo 166:3a9487d57a5c 60 /** Allocate a memory block of type T from a memory pool and set memory block to zero.
thedo 166:3a9487d57a5c 61 @return address of the allocated memory block or NULL in case of no memory available.
thedo 166:3a9487d57a5c 62 */
thedo 166:3a9487d57a5c 63 T* calloc(void) {
thedo 166:3a9487d57a5c 64 return (T*)osPoolCAlloc(_pool_id);
thedo 166:3a9487d57a5c 65 }
thedo 166:3a9487d57a5c 66
thedo 166:3a9487d57a5c 67 /** Return an allocated memory block back to a specific memory pool.
thedo 166:3a9487d57a5c 68 @param address of the allocated memory block that is returned to the memory pool.
thedo 166:3a9487d57a5c 69 @return status code that indicates the execution status of the function.
thedo 166:3a9487d57a5c 70 */
thedo 166:3a9487d57a5c 71 osStatus free(T *block) {
thedo 166:3a9487d57a5c 72 return osPoolFree(_pool_id, (void*)block);
thedo 166:3a9487d57a5c 73 }
thedo 166:3a9487d57a5c 74
thedo 166:3a9487d57a5c 75 private:
thedo 166:3a9487d57a5c 76 osPoolId _pool_id;
thedo 166:3a9487d57a5c 77 osPoolDef_t _pool_def;
thedo 166:3a9487d57a5c 78 #ifdef CMSIS_OS_RTX
thedo 166:3a9487d57a5c 79 uint32_t _pool_m[3+((sizeof(T)+3)/4)*(pool_sz)];
thedo 166:3a9487d57a5c 80 #endif
thedo 166:3a9487d57a5c 81 };
thedo 166:3a9487d57a5c 82
thedo 166:3a9487d57a5c 83 }
thedo 166:3a9487d57a5c 84 #endif
thedo 166:3a9487d57a5c 85
thedo 166:3a9487d57a5c 86 /** @}*/