156 lines
3.8 KiB
C
156 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef VPX_MEM_MEMORY_MANAGER_INCLUDE_HEAPMM_H_
|
|
#define VPX_MEM_MEMORY_MANAGER_INCLUDE_HEAPMM_H_
|
|
|
|
/* This code is in the public domain.
|
|
** Version: 1.1 Author: Walt Karas
|
|
*/
|
|
|
|
/* External header file for Heap Memory Manager. See documentation in
|
|
** heapmm.html.
|
|
*/
|
|
|
|
#undef HMM_PROCESS
|
|
|
|
/* Include once per configuration in a particular translation unit. */
|
|
|
|
#ifndef HMM_CNFG_NUM
|
|
|
|
/* Default configuration. */
|
|
|
|
#ifndef HMM_INC_CNFG_DFLT
|
|
#define HMM_INC_CNFG_DFLT
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#elif HMM_CNFG_NUM == 0
|
|
|
|
/* Test configuration. */
|
|
|
|
#ifndef HMM_INC_CNFG_0
|
|
#define HMM_INC_CNFG_0
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#elif HMM_CNFG_NUM == 1
|
|
|
|
#ifndef HMM_INC_CNFG_1
|
|
#define HMM_INC_CNFG_1
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#elif HMM_CNFG_NUM == 2
|
|
|
|
#ifndef HMM_INC_CNFG_2
|
|
#define HMM_INC_CNFG_2
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#elif HMM_CNFG_NUM == 3
|
|
|
|
#ifndef HMM_INC_CNFG_3
|
|
#define HMM_INC_CNFG_3
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#elif HMM_CNFG_NUM == 4
|
|
|
|
#ifndef HMM_INC_CNFG_4
|
|
#define HMM_INC_CNFG_4
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#elif HMM_CNFG_NUM == 5
|
|
|
|
#ifndef HMM_INC_CNFG_5
|
|
#define HMM_INC_CNFG_5
|
|
#define HMM_PROCESS
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#ifdef HMM_PROCESS
|
|
|
|
#include "hmm_cnfg.h"
|
|
|
|
/* Heap descriptor. */
|
|
typedef struct HMM_UNIQUE(structure) {
|
|
/* private: */
|
|
|
|
/* Pointer to (payload of) root node in AVL tree. This field should
|
|
** really be the AVL tree descriptor (type avl_avl). But (in the
|
|
** instantiation of the AVL tree generic package used in package) the
|
|
** AVL tree descriptor simply contains a pointer to the root. So,
|
|
** whenever a pointer to the AVL tree descriptor is needed, I use the
|
|
** cast:
|
|
**
|
|
** (avl_avl *) &(heap_desc->avl_tree_root)
|
|
**
|
|
** (where heap_desc is a pointer to a heap descriptor). This trick
|
|
** allows me to avoid including cavl_if.h in this external header. */
|
|
void *avl_tree_root;
|
|
|
|
/* Pointer to first byte of last block freed, after any coalescing. */
|
|
void *last_freed;
|
|
|
|
/* public: */
|
|
|
|
HMM_UNIQUE(size_bau) num_baus_can_shrink;
|
|
void *end_of_shrinkable_chunk;
|
|
}
|
|
HMM_UNIQUE(descriptor);
|
|
|
|
/* Prototypes for externally-callable functions. */
|
|
|
|
void HMM_UNIQUE(init)(HMM_UNIQUE(descriptor) *desc);
|
|
|
|
void *HMM_UNIQUE(alloc)(
|
|
HMM_UNIQUE(descriptor) *desc, HMM_UNIQUE(size_aau) num_addr_align_units);
|
|
|
|
/* NOT YET IMPLEMENTED */
|
|
void *HMM_UNIQUE(greedy_alloc)(
|
|
HMM_UNIQUE(descriptor) *desc, HMM_UNIQUE(size_aau) needed_addr_align_units,
|
|
HMM_UNIQUE(size_aau) coveted_addr_align_units);
|
|
|
|
int HMM_UNIQUE(resize)(
|
|
HMM_UNIQUE(descriptor) *desc, void *mem,
|
|
HMM_UNIQUE(size_aau) num_addr_align_units);
|
|
|
|
/* NOT YET IMPLEMENTED */
|
|
int HMM_UNIQUE(greedy_resize)(
|
|
HMM_UNIQUE(descriptor) *desc, void *mem,
|
|
HMM_UNIQUE(size_aau) needed_addr_align_units,
|
|
HMM_UNIQUE(size_aau) coveted_addr_align_units);
|
|
|
|
void HMM_UNIQUE(free)(HMM_UNIQUE(descriptor) *desc, void *mem);
|
|
|
|
HMM_UNIQUE(size_aau) HMM_UNIQUE(true_size)(void *mem);
|
|
|
|
HMM_UNIQUE(size_aau) HMM_UNIQUE(largest_available)(
|
|
HMM_UNIQUE(descriptor) *desc);
|
|
|
|
void HMM_UNIQUE(new_chunk)(
|
|
HMM_UNIQUE(descriptor) *desc, void *start_of_chunk,
|
|
HMM_UNIQUE(size_bau) num_block_align_units);
|
|
|
|
void HMM_UNIQUE(grow_chunk)(
|
|
HMM_UNIQUE(descriptor) *desc, void *end_of_chunk,
|
|
HMM_UNIQUE(size_bau) num_block_align_units);
|
|
|
|
/* NOT YET IMPLEMENTED */
|
|
void HMM_UNIQUE(shrink_chunk)(
|
|
HMM_UNIQUE(descriptor) *desc,
|
|
HMM_UNIQUE(size_bau) num_block_align_units);
|
|
|
|
#endif /* defined HMM_PROCESS */
|
|
#endif // VPX_MEM_MEMORY_MANAGER_INCLUDE_HEAPMM_H_
|