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/*************************************************************************/
/* memory.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "memory.h"
#include "error_macros.h"
#include "copymem.h"
#include <stdio.h>
#include <stdlib.h>
MID::MID(MemoryPoolDynamic::ID p_id) {
data = (Data*)memalloc(sizeof(Data));
data->refcount.init();
data->id=p_id;
}
void MID::unref() {
if (!data)
return;
if (data->refcount.unref()) {
if (data->id!=MemoryPoolDynamic::INVALID_ID)
MemoryPoolDynamic::get_singleton()->free(data->id);
memfree(data);
}
data=NULL;
}
Error MID::_resize(size_t p_size) {
if (p_size==0 && (!data || data->id==MemoryPoolDynamic::INVALID_ID))
return OK;
if (p_size && !data) {
// create data because we'll need it
data = (Data*)memalloc(sizeof(Data));
ERR_FAIL_COND_V( !data,ERR_OUT_OF_MEMORY );
data->refcount.init();
data->id=MemoryPoolDynamic::INVALID_ID;
}
if (p_size==0 && data && data->id==MemoryPoolDynamic::INVALID_ID) {
MemoryPoolDynamic::get_singleton()->free(data->id);
data->id=MemoryPoolDynamic::INVALID_ID;
}
if (p_size>0) {
if (data->id==MemoryPoolDynamic::INVALID_ID) {
data->id=MemoryPoolDynamic::get_singleton()->alloc(p_size,"Unnamed MID");
ERR_FAIL_COND_V( data->id==MemoryPoolDynamic::INVALID_ID, ERR_OUT_OF_MEMORY );
} else {
MemoryPoolDynamic::get_singleton()->realloc(data->id,p_size);
ERR_FAIL_COND_V( data->id==MemoryPoolDynamic::INVALID_ID, ERR_OUT_OF_MEMORY );
}
}
return OK;
}
void * operator new(size_t p_size,const char *p_description) {
return Memory::alloc_static( p_size, false );
}
void * operator new(size_t p_size,void* (*p_allocfunc)(size_t p_size)) {
return p_allocfunc(p_size);
}
#include <stdio.h>
#ifdef DEBUG_ENABLED
size_t Memory::mem_usage=0;
size_t Memory::max_usage=0;
#endif
size_t Memory::alloc_count=0;
void * Memory::alloc_static(size_t p_bytes,bool p_pad_align) {
#ifdef DEBUG_ENABLED
bool prepad=true;
#else
bool prepad=p_pad_align;
#endif
void * mem = malloc( p_bytes + (prepad?PAD_ALIGN:0));
alloc_count++;
ERR_FAIL_COND_V(!mem,NULL);
if (prepad) {
uint64_t *s = (uint64_t*)mem;
*s=p_bytes;
uint8_t *s8 = (uint8_t*)mem;
#ifdef DEBUG_ENABLED
mem_usage+=p_bytes;
if (mem_usage>max_usage) {
max_usage=mem_usage;
}
#endif
return s8 + PAD_ALIGN;
} else {
return mem;
}
}
void * Memory::realloc_static(void *p_memory,size_t p_bytes,bool p_pad_align) {
if (p_memory==NULL) {
return alloc_static(p_bytes,p_pad_align);
}
uint8_t *mem = (uint8_t*)p_memory;
#ifdef DEBUG_ENABLED
bool prepad=true;
#else
bool prepad=p_pad_align;
#endif
if (prepad) {
mem-=PAD_ALIGN;
uint64_t *s = (uint64_t*)mem;
#ifdef DEBUG_ENABLED
mem_usage-=*s;
mem_usage+=p_bytes;
#endif
if (p_bytes==0) {
free(mem);
return NULL;
} else {
*s=p_bytes;
mem = (uint8_t*)realloc(mem,p_bytes+PAD_ALIGN);
ERR_FAIL_COND_V(!mem,NULL);
s = (uint64_t*)mem;
*s=p_bytes;
return mem+PAD_ALIGN;
}
} else {
mem = (uint8_t*)realloc(mem,p_bytes);
ERR_FAIL_COND_V(mem==NULL && p_bytes>0,NULL);
return mem;
}
}
void Memory::free_static(void *p_ptr,bool p_pad_align) {
ERR_FAIL_COND(p_ptr==NULL);
uint8_t *mem = (uint8_t*)p_ptr;
#ifdef DEBUG_ENABLED
bool prepad=true;
#else
bool prepad=p_pad_align;
#endif
alloc_count--;
if (prepad) {
mem-=PAD_ALIGN;
uint64_t *s = (uint64_t*)mem;
#ifdef DEBUG_ENABLED
mem_usage-=*s;
#endif
free(mem);
} else {
free(mem);
}
}
size_t Memory::get_mem_available() {
return 0xFFFFFFFFFFFFF;
}
size_t Memory::get_mem_usage(){
#ifdef DEBUG_ENABLED
return mem_usage;
#else
return 0;
#endif
}
size_t Memory::get_mem_max_usage(){
#ifdef DEBUG_ENABLED
return max_usage;
#else
return 0;
#endif
}
MID Memory::alloc_dynamic(size_t p_bytes, const char *p_descr) {
MemoryPoolDynamic::ID id = MemoryPoolDynamic::get_singleton()->alloc(p_bytes,p_descr);
return MID(id);
}
Error Memory::realloc_dynamic(MID p_mid,size_t p_bytes) {
MemoryPoolDynamic::ID id = p_mid.data?p_mid.data->id:MemoryPoolDynamic::INVALID_ID;
if (id==MemoryPoolDynamic::INVALID_ID)
return ERR_INVALID_PARAMETER;
return MemoryPoolDynamic::get_singleton()->realloc(p_mid, p_bytes);
}
size_t Memory::get_dynamic_mem_available() {
return MemoryPoolDynamic::get_singleton()->get_available_mem();
}
size_t Memory::get_dynamic_mem_usage() {
return MemoryPoolDynamic::get_singleton()->get_total_usage();
}
_GlobalNil::_GlobalNil() {
color=1;
left=this;
right=this;
parent=this;
}
_GlobalNil _GlobalNilClass::_nil;
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