with Nucleo STM32F302R8 support (until merged)
Dependents: m2x-demo-all-cc3000
Fork of mbed-rtos by
rtos/MemoryPool.h
- Committer:
- mbed_official
- Date:
- 2014-06-03
- Revision:
- 31:015df9e602b6
- Parent:
- 8:88a1a9c26ae3
File content as of revision 31:015df9e602b6:
/* 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 MEMORYPOOL_H #define MEMORYPOOL_H #include <stdint.h> #include <string.h> #include "cmsis_os.h" namespace rtos { /** Define and manage fixed-size memory pools of objects of a given type. @tparam T data type of a single object (element). @tparam queue_sz maximum number of objects (elements) in the memory pool. */ template<typename T, uint32_t pool_sz> class MemoryPool { public: /** Create and Initialize a memory pool. */ MemoryPool() { #ifdef CMSIS_OS_RTX memset(_pool_m, 0, sizeof(_pool_m)); _pool_def.pool = _pool_m; _pool_def.pool_sz = pool_sz; _pool_def.item_sz = sizeof(T); #endif _pool_id = osPoolCreate(&_pool_def); } /** Allocate a memory block of type T from a memory pool. @return address of the allocated memory block or NULL in case of no memory available. */ T* alloc(void) { return (T*)osPoolAlloc(_pool_id); } /** Allocate a memory block of type T from a memory pool and set memory block to zero. @return address of the allocated memory block or NULL in case of no memory available. */ T* calloc(void) { return (T*)osPoolCAlloc(_pool_id); } /** Return an allocated memory block back to a specific memory pool. @param address of the allocated memory block that is returned to the memory pool. @return status code that indicates the execution status of the function. */ osStatus free(T *block) { return osPoolFree(_pool_id, (void*)block); } private: osPoolId _pool_id; osPoolDef_t _pool_def; #ifdef CMSIS_OS_RTX uint32_t _pool_m[3+((sizeof(T)+3)/4)*(pool_sz)]; #endif }; } #endif