87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
/*************************************************************************/
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/* memory_pool_dynamic_static.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef MEMORY_POOL_DYNAMIC_STATIC_H
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#define MEMORY_POOL_DYNAMIC_STATIC_H
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#include "os/memory_pool_dynamic.h"
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#include "typedefs.h"
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#include "os/thread_safe.h"
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class MemoryPoolDynamicStatic : public MemoryPoolDynamic {
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_THREAD_SAFE_CLASS_
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enum {
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MAX_CHUNKS=65536
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};
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struct Chunk {
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uint64_t lock;
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uint64_t check;
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void *mem;
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size_t size;
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const char *descr;
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Chunk() { mem=NULL; lock=0; check=0; }
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};
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Chunk chunk[MAX_CHUNKS];
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uint64_t last_check;
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int last_alloc;
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size_t total_usage;
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size_t max_usage;
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Chunk *get_chunk(ID p_id);
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const Chunk *get_chunk(ID p_id) const;
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public:
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virtual ID alloc(size_t p_amount,const char* p_description);
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virtual void free(ID p_id);
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virtual Error realloc(ID p_id, size_t p_amount);
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virtual bool is_valid(ID p_id);
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virtual size_t get_size(ID p_id) const;
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virtual const char* get_description(ID p_id) const;
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virtual bool is_locked(ID p_id) const;
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virtual Error lock(ID p_id);
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virtual void * get(ID p_ID);
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virtual Error unlock(ID p_id);
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virtual size_t get_available_mem() const;
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virtual size_t get_total_usage() const;
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MemoryPoolDynamicStatic();
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virtual ~MemoryPoolDynamicStatic();
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};
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#endif
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