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-rw-r--r--src/chmempools.c112
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diff --git a/src/chmempools.c b/src/chmempools.c
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-/*
- ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file chmempools.c
- * @brief Memory Pools code.
- * @addtogroup MemoryPools
- * @{
- */
-
-#include <ch.h>
-
-#if CH_USE_MEMPOOLS
-/**
- * @brief Initializes an empty memory pool.
- *
- * @param[out] mp pointer to a @p MemoryPool structure
- * @param[in] size the size of the objects contained in this memory pool,
- * the minimum accepted size is the size of a pointer to void
- */
-void chPoolInit(MemoryPool *mp, size_t size) {
-
- chDbgCheck((mp != NULL) && (size >= sizeof(void *)), "chPoolInit");
-
- mp->mp_next = NULL;
- mp->mp_object_size = size;
-}
-
-/**
- * @brief Allocates an object from a memory pool.
- *
- * @param[in] mp pointer to a @p MemoryPool structure
- * @return The pointer to the allocated object.
- * @retval NULL if pool is empty.
- */
-void *chPoolAllocI(MemoryPool *mp) {
- void *objp;
-
- chDbgCheck(mp != NULL, "chPoolAllocI");
-
- if ((objp = mp->mp_next) != NULL)
- mp->mp_next = mp->mp_next->ph_next;
-
- return objp;
-}
-
-/**
- * @brief Allocates an object from a memory pool.
- *
- * @param[in] mp pointer to a @p MemoryPool structure
- * @return The pointer to the allocated object.
- * @retval NULL if pool is empty.
- */
-void *chPoolAlloc(MemoryPool *mp) {
- void *objp;
-
- chSysLock();
- objp = chPoolAllocI(mp);
- chSysUnlock();
- return objp;
-}
-
-/**
- * @brief Releases (or adds) an object into (to) a memory pool.
- *
- * @param[in] mp pointer to a @p MemoryPool structure
- * @param[in] objp the pointer to the object to be released or added
- * @note the object is assumed to be of the right size for the specified
- * memory pool.
- */
-void chPoolFreeI(MemoryPool *mp, void *objp) {
- struct pool_header *php = objp;
-
- chDbgCheck((mp != NULL) && (objp != NULL), "chPoolFreeI");
-
- php->ph_next = mp->mp_next;
- mp->mp_next = php;
-}
-
-/**
- * @brief Releases (or adds) an object into (to) a memory pool.
- *
- * @param[in] mp pointer to a @p MemoryPool structure
- * @param[in] objp the pointer to the object to be released or added
- * @note the object is assumed to be of the right size for the specified
- * memory pool.
- */
-void chPoolFree(MemoryPool *mp, void *objp) {
-
- chSysLock();
- chPoolFreeI(mp, objp);
- chSysUnlock();
-}
-#endif /* CH_USE_MEMPOOLS */
-
-/** @} */