163 lines
4.4 KiB
C++
163 lines
4.4 KiB
C++
/*************************************************************************/
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/* memory_pool_static_nedmalloc.cpp */
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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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#ifdef NEDMALLOC_ENABLED
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//
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// C++ Implementation: memory_static_malloc
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//
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// Description:
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//
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//
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// Author: Juan Linietsky <red@lunatea>, (C) 2006
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//
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// Copyright: See COPYING file that comes with this distribution
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//
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//
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#include "memory_pool_static_nedmalloc.h"
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#include "error_macros.h"
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#include "os/memory.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include "os/copymem.h"
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#include "os/os.h"
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#include "nedmalloc.h"
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/**
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* NOTE NOTE NOTE NOTE
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* in debug mode, this appends the memory size before the allocated, returned pointer
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* so BE CAREFUL!
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*/
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void* MemoryPoolStaticNedMalloc::alloc(size_t p_bytes,const char *p_description) {
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ERR_FAIL_COND_V(p_bytes==0,0);
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MutexLock lock(mutex);
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void *mem=nedalloc::nedmalloc(p_bytes);
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ERR_FAIL_COND_V(!mem,0); //out of memory, or unreasonable request
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return mem;
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}
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void* MemoryPoolStaticNedMalloc::realloc(void *p_memory,size_t p_bytes) {
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if (p_memory==NULL) {
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return alloc( p_bytes );
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}
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if (p_bytes<=0) {
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this->free(p_memory);
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ERR_FAIL_COND_V( p_bytes < 0 , NULL );
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return NULL;
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}
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MutexLock lock(mutex);
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return nedalloc::nedrealloc( p_memory, p_bytes );
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}
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void MemoryPoolStaticNedMalloc::free(void *p_ptr) {
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MutexLock lock(mutex);
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ERR_FAIL_COND(p_ptr==0);
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nedalloc::nedfree(p_ptr);
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}
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size_t MemoryPoolStaticNedMalloc::get_available_mem() const {
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return 0xffffffff;
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}
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size_t MemoryPoolStaticNedMalloc::get_total_usage() {
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return nedalloc::nedmalloc_footprint();
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}
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/* Most likely available only if memory debugger was compiled in */
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int MemoryPoolStaticNedMalloc::get_alloc_count() {
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return 0;
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}
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void * MemoryPoolStaticNedMalloc::get_alloc_ptr(int p_alloc_idx) {
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return 0;
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}
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const char* MemoryPoolStaticNedMalloc::get_alloc_description(int p_alloc_idx) {
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return "";
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}
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size_t MemoryPoolStaticNedMalloc::get_alloc_size(int p_alloc_idx) {
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return 0;
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}
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void MemoryPoolStaticNedMalloc::debug_print_all_memory() {
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nedalloc::nedmalloc_stats();
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}
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MemoryPoolStaticNedMalloc::MemoryPoolStaticNedMalloc() {
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mutex=NULL;
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#ifndef NO_THREADS
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mutex=Mutex::create(); // at this point, this should work
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#endif
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}
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MemoryPoolStaticNedMalloc::~MemoryPoolStaticNedMalloc() {
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Mutex *old_mutex=mutex;
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mutex=NULL;
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if (old_mutex)
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memdelete(old_mutex);
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#ifdef DEBUG_ENABLED
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if (OS::get_singleton()->is_stdout_verbose())
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nedalloc::nedmalloc_stats();
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#endif
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}
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#endif
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