mirror of
https://github.com/libretro/RetroArch
synced 2025-01-30 12:32:52 +00:00
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/*
|
|
Copyright (c) 2012, Broadcom Europe Ltd
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
* Neither the name of the copyright holder nor the
|
|
names of its contributors may be used to endorse or promote products
|
|
derived from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*=============================================================================
|
|
VideoCore OS Abstraction Layer - memory pool support
|
|
=============================================================================*/
|
|
|
|
#ifndef VCOS_MEMPOOL_H
|
|
#define VCOS_MEMPOOL_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "interface/vcos/vcos_types.h"
|
|
#include "vcos.h"
|
|
|
|
/** \file
|
|
*
|
|
* Memory pools - variable sized allocator.
|
|
*
|
|
* A very basic memory pool API.
|
|
*
|
|
* This interface is deliberately not thread safe - clients should add
|
|
* their own locking, if required.
|
|
*
|
|
*
|
|
* \fixme: Add fixed-size allocator.
|
|
*
|
|
*/
|
|
|
|
/** Initialize a memory pool. The control data is taken from the memory
|
|
* supplied itself.
|
|
*
|
|
* Note: the dmalloc pool uses the memory supplied for its control
|
|
* area. This is probably a bit broken, as it stops you creating
|
|
* a pool in some "special" area of memory, while leaving the control
|
|
* information in normal memory.
|
|
*
|
|
* @param pool Pointer to pool object.
|
|
*
|
|
* @param name Name for the pool. Used for diagnostics.
|
|
*
|
|
* @param start Starting address. Must be at least 8byte aligned.
|
|
*
|
|
* @param size Size of pool in bytes.
|
|
*
|
|
* @return VCOS_SUCCESS if pool was created.
|
|
*/
|
|
VCOS_INLINE_DECL
|
|
VCOS_STATUS_T vcos_mempool_create(VCOS_MEMPOOL_T *pool, const char *name, void *start, VCOS_UNSIGNED size);
|
|
|
|
/** Allocate some memory from a pool. If no memory is available, it
|
|
* returns NULL.
|
|
*
|
|
* @param pool Pool to allocate from
|
|
* @param len Length of memory to allocate
|
|
*
|
|
*/
|
|
VCOS_INLINE_DECL
|
|
void *vcos_mempool_alloc(VCOS_MEMPOOL_T *pool, VCOS_UNSIGNED len);
|
|
|
|
/** Free some memory back to a pool.
|
|
*
|
|
* @param pool Pool to return to
|
|
* @param mem Memory to return
|
|
*/
|
|
VCOS_INLINE_DECL
|
|
void vcos_mempool_free(VCOS_MEMPOOL_T *pool, void *mem);
|
|
|
|
/** Deinitialize a memory pool.
|
|
*
|
|
* @param pool Pool to return to
|
|
*/
|
|
VCOS_INLINE_DECL
|
|
void vcos_mempool_delete(VCOS_MEMPOOL_T *pool);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
|