mirror of
https://git.rip/DMCA_FUCKER/re3.git
synced 2024-12-22 18:30:01 +00:00
implemented CMemoryHeap, not used or tested yet
This commit is contained in:
parent
70d8bdc087
commit
88baa9ce5f
548
src/rw/MemoryHeap.cpp
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548
src/rw/MemoryHeap.cpp
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#include "common.h"
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#include "main.h"
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#include "FileMgr.h"
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#include "Timer.h"
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#include "ModelInfo.h"
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#include "Streaming.h"
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#include "FileLoader.h"
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#include "MemoryHeap.h"
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#ifdef USE_CUSTOM_ALLOCATOR
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#define MEMORYHEAP_ASSERT(cond) { if (!(cond)) { printf("ASSERT File:%s Line:%d\n", __FILE__, __LINE__); exit(1); } }
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#define MEMORYHEAP_ASSERT_MESSAGE(cond, message) { if (!(cond)) { printf("ASSERT File:%s Line:%d:\n\t%s\n", __FILE__, __LINE__, message); exit(1); } }
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// registered pointers that we keep track of
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void **gPtrList[4000];
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int32 numPtrs;
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int32 gPosnInList;
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// indices into the ptr list in here are free
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CStack<int32, 4000> m_ptrListIndexStack;
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// how much memory we've moved
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uint32 memMoved;
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CMemoryHeap gMainHeap;
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void
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CMemoryHeap::Init(uint32 total)
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{
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MEMORYHEAP_ASSERT((total != 0xF) != 0);
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m_totalMemUsed = 0;
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m_memUsed = nil;
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m_currentMemID = MEMID_FREE;
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m_blocksUsed = nil;
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m_totalBlocksUsed = 0;
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m_unkMemId = -1;
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uint8 *mem = (uint8*)malloc(total);
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assert(((uintptr)mem & 0xF) == 0);
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m_start = (HeapBlockDesc*)mem;
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m_end = (HeapBlockDesc*)(mem + total - sizeof(HeapBlockDesc));
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m_start->m_memId = MEMID_FREE;
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m_start->m_size = total - 2*sizeof(HeapBlockDesc);
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m_end->m_memId = MEMID_ID1;
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m_end->m_size = 0;
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m_freeList.m_last.m_size = INT_MAX;
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m_freeList.Init();
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m_freeList.Insert(m_start);
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// TODO: figure out what these are and use sizeof
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m_fixedSize[0].Init(0x10);
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m_fixedSize[1].Init(0x20);
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m_fixedSize[2].Init(0xE0);
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m_fixedSize[3].Init(0x60);
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m_fixedSize[4].Init(0x1C0);
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m_fixedSize[5].Init(0x50);
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m_currentMemID = MEMID_FREE; // disable registration
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m_memUsed = (uint32*)Malloc(NUM_MEMIDS * sizeof(uint32));
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m_blocksUsed = (uint32*)Malloc(NUM_MEMIDS * sizeof(uint32));
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RegisterMalloc(GetDescFromHeapPointer(m_memUsed));
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RegisterMalloc(GetDescFromHeapPointer(m_blocksUsed));
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m_currentMemID = MEMID_ID1;
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for(int i = 0; i < NUM_MEMIDS; i++){
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m_memUsed[i] = 0;
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m_blocksUsed[i] = 0;
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}
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}
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void
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CMemoryHeap::RegisterMalloc(HeapBlockDesc *block)
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{
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block->m_memId = m_currentMemID;
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if(m_currentMemID == MEMID_FREE)
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return;
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m_totalMemUsed += block->m_size + sizeof(HeapBlockDesc);
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m_memUsed[m_currentMemID] += block->m_size + sizeof(HeapBlockDesc);
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m_blocksUsed[m_currentMemID]++;
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m_totalBlocksUsed++;
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}
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void
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CMemoryHeap::RegisterFree(HeapBlockDesc *block)
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{
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if(block->m_memId == MEMID_FREE)
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return;
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m_totalMemUsed -= block->m_size + sizeof(HeapBlockDesc);
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m_memUsed[m_currentMemID] -= block->m_size + sizeof(HeapBlockDesc);
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m_blocksUsed[m_currentMemID]--;
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m_totalBlocksUsed--;
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}
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void*
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CMemoryHeap::Malloc(uint32 size)
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{
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static int recursion = 0;
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// weird way to round up
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if((size & 0xF) != 0)
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size = (size&~0xF) + 0x10;
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recursion++;
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// See if we can allocate from one of the fixed-size lists
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for(int i = 0; i < NUM_FIXED_MEMBLOCKS; i++){
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CommonSize *list = &m_fixedSize[i];
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if(m_fixedSize[i].m_size == size){
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HeapBlockDesc *block = list->Malloc();
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if(block){
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RegisterMalloc(block);
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recursion--;
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return block->GetDataPointer();
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}
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break;
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}
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}
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// now try the normal free list
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HeapBlockDesc *next;
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for(HeapBlockDesc *block = m_freeList.m_first.m_next;
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block != &m_freeList.m_last;
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block = next){
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MEMORYHEAP_ASSERT(block->m_memId == MEMID_FREE);
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MEMORYHEAP_ASSERT_MESSAGE(block >= m_start && block <= m_end, "Block outside of memory");
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// make sure block has maximum size
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uint32 initialsize = block->m_size;
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uint32 blocksize = CombineFreeBlocks(block);
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#ifdef FIX_BUGS
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// has to be done here because block can be moved
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next = block->m_next;
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#endif
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if(initialsize != blocksize){
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block->RemoveHeapFreeBlock();
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HeapBlockDesc *pos = block->m_prev->FindSmallestFreeBlock(block->m_size);
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block->InsertHeapFreeBlock(pos->m_prev);
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}
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if(block->m_size >= size){
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// got space to allocate from!
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block->RemoveHeapFreeBlock();
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FillInBlockData(block, block->GetNextConsecutive(), size);
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recursion--;
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return block->GetDataPointer();
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}
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#ifndef FIX_BUGS
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next = block->m_next;
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#endif
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}
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// oh no, we're losing, try to free some stuff
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static bool removeCollision = false;
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static bool removeIslands = false;
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static bool removeBigBuildings = false;
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size_t initialMemoryUsed = CStreaming::ms_memoryUsed;
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CStreaming::MakeSpaceFor(0xCFE800 - CStreaming::ms_memoryUsed);
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if (recursion > 10)
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CGame::TidyUpMemory(true, false);
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else if (recursion > 6)
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CGame::TidyUpMemory(false, true);
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if (initialMemoryUsed == CStreaming::ms_memoryUsed && recursion > 11) {
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if (!removeCollision && !CGame::playingIntro) {
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CModelInfo::RemoveColModelsFromOtherLevels(LEVEL_GENERIC);
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removeCollision = true;
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}
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else if (!removeIslands && !CGame::playingIntro) {
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CStreaming::RemoveIslandsNotUsed(LEVEL_INDUSTRIAL);
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CStreaming::RemoveIslandsNotUsed(LEVEL_COMMERCIAL);
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CStreaming::RemoveIslandsNotUsed(LEVEL_SUBURBAN);
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removeIslands = true;
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}
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else if (!removeBigBuildings) {
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CStreaming::RemoveBigBuildings(LEVEL_INDUSTRIAL);
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CStreaming::RemoveBigBuildings(LEVEL_COMMERCIAL);
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CStreaming::RemoveBigBuildings(LEVEL_SUBURBAN);
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}
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else {
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LoadingScreen("NO MORE MEMORY", nil, nil);
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LoadingScreen("NO MORE MEMORY", nil, nil);
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}
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CGame::TidyUpMemory(true, false);
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}
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void *mem = Malloc(size);
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if (removeCollision) {
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CTimer::Stop();
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// different on PS2
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CFileLoader::LoadCollisionFromDatFile(CCollision::ms_collisionInMemory);
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removeCollision = false;
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CTimer::Update();
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}
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if (removeBigBuildings || removeIslands) {
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CTimer::Stop();
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if (!CGame::playingIntro)
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CStreaming::RequestBigBuildings(CGame::currLevel);
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CStreaming::LoadAllRequestedModels(true);
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removeBigBuildings = false;
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removeIslands = false;
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CTimer::Update();
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}
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recursion--;
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return mem;
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}
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void*
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CMemoryHeap::Realloc(void *ptr, uint32 size)
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{
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if(ptr == nil)
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return Malloc(size);
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// weird way to round up
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if((size & 0xF) != 0)
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size = (size&~0xF) + 0x10;
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HeapBlockDesc *block = GetDescFromHeapPointer(ptr);
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#ifdef FIX_BUGS
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// better handling of size < block->m_size
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if(size == 0){
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Free(ptr);
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return nil;
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}
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if(block->m_size >= size){
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// shrink allocated block
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RegisterFree(block);
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PushMemId(block->m_memId);
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FillInBlockData(block, block->GetNextConsecutive(), size);
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PopMemId();
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return ptr;
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}
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#else
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// not growing. just returning here is a bit cheap though
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if(block->m_size >= size)
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return ptr;
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#endif
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// have to grow allocated block
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HeapBlockDesc *next = block->GetNextConsecutive();
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MEMORYHEAP_ASSERT_MESSAGE(next >= m_start && next <= m_end, "Block outside of memory");
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if(next->m_memId == MEMID_FREE){
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// try to grow the current block
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// make sure the next free block has maximum size
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uint32 freespace = CombineFreeBlocks(next);
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HeapBlockDesc *end = next->GetNextConsecutive();
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MEMORYHEAP_ASSERT_MESSAGE(end >= m_start && end <= m_end, "Block outside of memory");
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// why the sizeof here?
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if(block->m_size + next->m_size + sizeof(HeapBlockDesc) >= size){
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// enough space to grow
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next->RemoveHeapFreeBlock();
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RegisterFree(block);
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PushMemId(block->m_memId);
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FillInBlockData(block, next->GetNextConsecutive(), size);
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PopMemId();
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return ptr;
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}
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}
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// can't grow the existing block, have to get a new one and copy
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PushMemId(block->m_memId);
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void *dst = Malloc(size);
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PopMemId();
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memcpy(dst, ptr, block->m_size);
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Free(ptr);
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return dst;
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}
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void
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CMemoryHeap::Free(void *ptr)
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{
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HeapBlockDesc *block = GetDescFromHeapPointer(ptr);
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MEMORYHEAP_ASSERT_MESSAGE(block->m_memId != MEMID_FREE, "MemoryHeap corrupt");
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MEMORYHEAP_ASSERT(m_unkMemId == -1 || m_unkMemId == block->m_memId);
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RegisterFree(block);
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CombineFreeBlocks(block);
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FreeBlock(block);
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if(block->m_ptrListIndex != -1){
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int32 idx = block->m_ptrListIndex;
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gPtrList[idx] = nil;
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m_ptrListIndexStack.push(idx);
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}
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block->m_ptrListIndex = -1;
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}
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// allocate 'size' bytes from 'block'
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void
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CMemoryHeap::FillInBlockData(HeapBlockDesc *block, HeapBlockDesc *end, uint32 size)
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{
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block->m_size = size;
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block->m_ptrListIndex = -1;
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HeapBlockDesc *remainder = block->GetNextConsecutive();
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MEMORYHEAP_ASSERT(remainder <= end);
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if(remainder < end-1){
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RegisterMalloc(block);
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// can fit another block in the remaining space
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remainder->m_size = GetSizeBetweenBlocks(remainder, end);
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remainder->m_memId = MEMID_FREE;
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MEMORYHEAP_ASSERT(remainder->m_size != 0);
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FreeBlock(remainder);
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}else{
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// fully allocate this one
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if(remainder < end)
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// no gaps allowed
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block->m_size = GetSizeBetweenBlocks(block, end);
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RegisterMalloc(block);
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}
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}
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// Make sure free block has no other free blocks after it
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uint32
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CMemoryHeap::CombineFreeBlocks(HeapBlockDesc *block)
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{
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HeapBlockDesc *next = block->GetNextConsecutive();
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if(next->m_memId == MEMID_FREE)
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return block->m_size;
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// get rid of free blocks after this one and adjust size
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for(; next->m_memId == MEMID_FREE; next = next->GetNextConsecutive())
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next->RemoveHeapFreeBlock();
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block->m_size = GetSizeBetweenBlocks(block, next);
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return block->m_size;
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}
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// Try to move all registered memory blocks into more optimal location
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void
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CMemoryHeap::TidyHeap(void)
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{
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for(int i = 0; i < numPtrs; i++){
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if(gPtrList[i] == nil || *gPtrList[i] == nil)
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continue;
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HeapBlockDesc *newblock = WhereShouldMemoryMove(*gPtrList[i]);
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if(newblock)
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*gPtrList[i] = MoveHeapBlock(newblock, GetDescFromHeapPointer(*gPtrList[i]));
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}
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}
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//
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void
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CMemoryHeap::RegisterMemPointer(void *ptr)
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{
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HeapBlockDesc *block = GetDescFromHeapPointer(*(void**)ptr);
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if(block->m_ptrListIndex != -1)
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return; // already registered
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int index;
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if(m_ptrListIndexStack.sp > 0){
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// re-use a previously free'd index
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index = m_ptrListIndexStack.pop();
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}else{
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// have to find a new index
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index = gPosnInList;
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void **pp = gPtrList[index];
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// we're replacing an old pointer here??
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if(pp && *pp && *pp != (void*)0xDDDDDDDD)
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GetDescFromHeapPointer(*pp)->m_ptrListIndex = -1;
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gPosnInList++;
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if(gPosnInList == 4000)
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gPosnInList = 0;
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if(numPtrs < 4000)
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numPtrs++;
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}
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gPtrList[index] = (void**)ptr;
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block->m_ptrListIndex = index;
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}
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void*
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CMemoryHeap::MoveMemory(void *ptr)
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{
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HeapBlockDesc *newblock = WhereShouldMemoryMove(ptr);
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if(newblock)
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return MoveHeapBlock(newblock, GetDescFromHeapPointer(ptr));
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else
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return ptr;
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}
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HeapBlockDesc*
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CMemoryHeap::WhereShouldMemoryMove(void *ptr)
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{
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HeapBlockDesc *block = GetDescFromHeapPointer(ptr);
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MEMORYHEAP_ASSERT(block->m_memId != MEMID_FREE);
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HeapBlockDesc *next = block->GetNextConsecutive();
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if(next->m_memId != MEMID_FREE)
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return nil;
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// we want to move the block into another block
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// such that the free space between this and the next block can be minimized
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HeapBlockDesc *newblock = m_freeList.m_first.FindSmallestFreeBlock(block->m_size);
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// size of free space wouldn't decrease, so return
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if(newblock->m_size >= block->m_size + next->m_size)
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return nil;
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// size of free space wouldn't decrease enough
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if(newblock->m_size >= 16 + 1.125f*block->m_size) // what are 16 and 1.125 here? sizeof(HeapBlockDesc)?
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return nil;
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return newblock;
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}
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void*
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CMemoryHeap::MoveHeapBlock(HeapBlockDesc *dst, HeapBlockDesc *src)
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{
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PushMemId(src->m_memId);
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dst->RemoveHeapFreeBlock();
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FillInBlockData(dst, dst->GetNextConsecutive(), src->m_size);
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PopMemId();
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memcpy(dst->GetDataPointer(), src->GetDataPointer(), src->m_size);
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memMoved += src->m_size;
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dst->m_ptrListIndex = src->m_ptrListIndex;
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src->m_ptrListIndex = -1;
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Free(src->GetDataPointer());
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return dst->GetDataPointer();
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}
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uint32
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CMemoryHeap::GetMemoryUsed(int32 id)
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{
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return m_memUsed[id];
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}
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uint32
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CMemoryHeap::GetBlocksUsed(int32 id)
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{
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return m_blocksUsed[id];
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}
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void
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CMemoryHeap::PopMemId(void)
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{
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m_currentMemID = m_idStack.pop();
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}
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void
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CMemoryHeap::PushMemId(int32 id)
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{
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MEMORYHEAP_ASSERT(id != MEMID_FREE);
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m_idStack.push(m_currentMemID);
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m_currentMemID = id;
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}
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void
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CMemoryHeap::ParseHeap(void)
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{
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char tmp[16];
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int fd = CFileMgr::OpenFileForWriting("heap.txt");
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CTimer::Stop();
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// CMemoryHeap::IntegrityCheck();
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uint32 addrQW = 0;
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for(HeapBlockDesc *block = m_start; block < m_end; block = block->GetNextConsecutive()){
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char chr = '*'; // free
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if(block->m_memId != MEMID_FREE)
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chr = block->m_memId-MEMID_ID1 + 'A';
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int numQW = block->m_size>>4;
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if((addrQW & 0x3F) == 0){
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sprintf(tmp, "\n%5dK:", addrQW>>6);
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CFileMgr::Write(fd, tmp, 8);
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}
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CFileMgr::Write(fd, "#", 1); // the descriptor, has to be 16 bytes!!!!
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addrQW++;
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while(numQW--){
|
||||
if((addrQW & 0x3F) == 0){
|
||||
sprintf(tmp, "\n%5dK:", addrQW>>6);
|
||||
CFileMgr::Write(fd, tmp, 8);
|
||||
}
|
||||
CFileMgr::Write(fd, &chr, 1);
|
||||
addrQW++;
|
||||
}
|
||||
}
|
||||
|
||||
CTimer::Update();
|
||||
CFileMgr::CloseFile(fd);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
CommonSize::Init(uint32 size)
|
||||
{
|
||||
m_freeList.Init();
|
||||
m_size = size;
|
||||
m_failed = 0;
|
||||
m_remaining = 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void *pMemoryTop;
|
||||
|
||||
void
|
||||
InitMemoryMgr(void)
|
||||
{
|
||||
#ifdef GTA_PS2
|
||||
#error "finish this"
|
||||
#else
|
||||
// randomly allocate 128mb
|
||||
gMainHeap.Init(128*1024*1024);
|
||||
#endif
|
||||
}
|
||||
|
||||
void*
|
||||
MemoryMgrMalloc(uint32 size)
|
||||
{
|
||||
void *mem = gMainHeap.Malloc(size);
|
||||
if(mem > pMemoryTop)
|
||||
pMemoryTop = mem;
|
||||
return mem;
|
||||
}
|
||||
|
||||
void*
|
||||
MemoryMgrRealloc(void *ptr, uint32 size)
|
||||
{
|
||||
void *mem = gMainHeap.Realloc(ptr, size);
|
||||
if(mem > pMemoryTop)
|
||||
pMemoryTop = mem;
|
||||
return mem;
|
||||
}
|
||||
|
||||
void*
|
||||
MemoryMgrCalloc(uint32 num, uint32 size)
|
||||
{
|
||||
void *mem = gMainHeap.Malloc(num*size);
|
||||
if(mem > pMemoryTop)
|
||||
pMemoryTop = mem;
|
||||
#ifdef FIX_BUGS
|
||||
memset(mem, 0, num*size);
|
||||
#endif
|
||||
return mem;
|
||||
}
|
||||
|
||||
void
|
||||
MemoryMgrFree(void *ptr)
|
||||
{
|
||||
gMainHeap.Free(ptr);
|
||||
}
|
||||
|
||||
RwMemoryFunctions memFuncs = {
|
||||
MemoryMgrMalloc,
|
||||
MemoryMgrFree,
|
||||
MemoryMgrRealloc,
|
||||
MemoryMgrCalloc
|
||||
};
|
||||
|
||||
#endif
|
188
src/rw/MemoryHeap.h
Normal file
188
src/rw/MemoryHeap.h
Normal file
|
@ -0,0 +1,188 @@
|
|||
#pragma once
|
||||
|
||||
extern RwMemoryFunctions memFuncs;
|
||||
|
||||
template<typename T, uint32 N>
|
||||
class CStack
|
||||
{
|
||||
public:
|
||||
T values[N];
|
||||
uint32 sp;
|
||||
|
||||
CStack() : sp(0) {}
|
||||
void push(const T& val) { values[sp++] = val; }
|
||||
T& pop() { return values[sp--]; }
|
||||
};
|
||||
|
||||
|
||||
struct HeapBlockDesc
|
||||
{
|
||||
uint32 m_size;
|
||||
int16 m_memId;
|
||||
int16 m_ptrListIndex;
|
||||
HeapBlockDesc *m_next;
|
||||
HeapBlockDesc *m_prev;
|
||||
|
||||
HeapBlockDesc *GetNextConsecutive(void)
|
||||
{
|
||||
return (HeapBlockDesc*)((uintptr)this + sizeof(HeapBlockDesc) + m_size);
|
||||
}
|
||||
|
||||
void *GetDataPointer(void)
|
||||
{
|
||||
return (void*)((uintptr)this + sizeof(HeapBlockDesc));
|
||||
}
|
||||
|
||||
void RemoveHeapFreeBlock(void)
|
||||
{
|
||||
m_next->m_prev = m_prev;
|
||||
m_prev->m_next = m_next;
|
||||
}
|
||||
|
||||
// after node
|
||||
void InsertHeapFreeBlock(HeapBlockDesc *node)
|
||||
{
|
||||
m_next = node->m_next;
|
||||
node->m_next->m_prev = this;
|
||||
m_prev = node;
|
||||
node->m_next = this;
|
||||
}
|
||||
|
||||
HeapBlockDesc *FindSmallestFreeBlock(uint32 size)
|
||||
{
|
||||
HeapBlockDesc *b;
|
||||
for(b = m_next; b->m_size < size; b = b->m_next);
|
||||
return b;
|
||||
}
|
||||
};
|
||||
|
||||
static_assert(sizeof(HeapBlockDesc) == 0x10, "HeapBlockDesc must have 0x10 size otherwise most of assumptions don't make sense");
|
||||
|
||||
struct HeapBlockList
|
||||
{
|
||||
HeapBlockDesc m_first;
|
||||
HeapBlockDesc m_last;
|
||||
|
||||
void Init(void)
|
||||
{
|
||||
m_first.m_next = &m_last;
|
||||
m_last.m_prev = &m_first;
|
||||
}
|
||||
|
||||
void Insert(HeapBlockDesc *node)
|
||||
{
|
||||
node->InsertHeapFreeBlock(&m_first);
|
||||
}
|
||||
};
|
||||
|
||||
struct CommonSize
|
||||
{
|
||||
HeapBlockList m_freeList;
|
||||
uint32 m_size;
|
||||
uint32 m_failed;
|
||||
uint32 m_remaining;
|
||||
|
||||
void Init(uint32 size);
|
||||
void Free(HeapBlockDesc *node)
|
||||
{
|
||||
m_freeList.Insert(node);
|
||||
m_remaining++;
|
||||
}
|
||||
HeapBlockDesc *Malloc(void)
|
||||
{
|
||||
if(m_freeList.m_first.m_next == &m_freeList.m_last){
|
||||
m_failed++;
|
||||
return nil;
|
||||
}
|
||||
HeapBlockDesc *block = m_freeList.m_first.m_next;
|
||||
m_remaining--;
|
||||
block->RemoveHeapFreeBlock();
|
||||
block->m_ptrListIndex = -1;
|
||||
return block;
|
||||
}
|
||||
};
|
||||
|
||||
enum {
|
||||
MEMID_FREE,
|
||||
// IDs from LCS:
|
||||
MEMID_ID1, // "Game"
|
||||
MEMID_ID2, // "World"
|
||||
MEMID_ID3, // "Animation"
|
||||
MEMID_ID4, // "Pools"
|
||||
MEMID_ID5, // "Default Models"
|
||||
MEMID_ID6, // "Streaming"
|
||||
MEMID_ID7, // "Streamed Models"
|
||||
MEMID_ID8, // "Streamed LODs"
|
||||
MEMID_ID9, // "Streamed Textures"
|
||||
MEMID_ID10, // "Streamed Collision"
|
||||
MEMID_ID11, // "Streamed Animation"
|
||||
MEMID_ID12, // "Textures"
|
||||
MEMID_ID13, // "Collision"
|
||||
MEMID_ID14, // "PreAlloc"
|
||||
MEMID_ID15, // "Game Process"
|
||||
MEMID_ID16, // "Script"
|
||||
MEMID_ID17, // "Cars"
|
||||
MEMID_ID18, // "Render"
|
||||
MEMID_ID19, // "Ped Attr"
|
||||
|
||||
NUM_MEMIDS,
|
||||
|
||||
NUM_FIXED_MEMBLOCKS = 6
|
||||
};
|
||||
|
||||
class CMemoryHeap
|
||||
{
|
||||
public:
|
||||
HeapBlockDesc *m_start;
|
||||
HeapBlockDesc *m_end;
|
||||
HeapBlockList m_freeList;
|
||||
CommonSize m_fixedSize[NUM_FIXED_MEMBLOCKS];
|
||||
uint32 m_totalMemUsed;
|
||||
CStack<int32, 16> m_idStack;
|
||||
uint32 m_currentMemID;
|
||||
uint32 *m_memUsed;
|
||||
uint32 m_totalBlocksUsed;
|
||||
uint32 *m_blocksUsed;
|
||||
uint32 m_unkMemId;
|
||||
|
||||
CMemoryHeap(void) : m_start(nil) {}
|
||||
void Init(uint32 total);
|
||||
void RegisterMalloc(HeapBlockDesc *block);
|
||||
void RegisterFree(HeapBlockDesc *block);
|
||||
void *Malloc(uint32 size);
|
||||
void *Realloc(void *ptr, uint32 size);
|
||||
void Free(void *ptr);
|
||||
void FillInBlockData(HeapBlockDesc *block, HeapBlockDesc *end, uint32 size);
|
||||
uint32 CombineFreeBlocks(HeapBlockDesc *block);
|
||||
void *MoveMemory(void *ptr);
|
||||
HeapBlockDesc *WhereShouldMemoryMove(void *ptr);
|
||||
void *MoveHeapBlock(HeapBlockDesc *dst, HeapBlockDesc *src);
|
||||
void PopMemId(void);
|
||||
void PushMemId(int32 id);
|
||||
void RegisterMemPointer(void *ptr);
|
||||
void TidyHeap(void);
|
||||
uint32 GetMemoryUsed(int32 id);
|
||||
uint32 GetBlocksUsed(int32 id);
|
||||
|
||||
void ParseHeap(void);
|
||||
|
||||
HeapBlockDesc *GetDescFromHeapPointer(void *block)
|
||||
{
|
||||
return (HeapBlockDesc*)((uintptr)block - sizeof(HeapBlockDesc));
|
||||
}
|
||||
uint32 GetSizeBetweenBlocks(HeapBlockDesc *first, HeapBlockDesc *second)
|
||||
{
|
||||
return (uintptr)second - (uintptr)first - sizeof(HeapBlockDesc);
|
||||
}
|
||||
void FreeBlock(HeapBlockDesc *block){
|
||||
for(int i = 0; i < NUM_FIXED_MEMBLOCKS; i++){
|
||||
if(m_fixedSize[i].m_size == block->m_size){
|
||||
m_fixedSize[i].Free(block);
|
||||
return;
|
||||
}
|
||||
}
|
||||
HeapBlockDesc *it;
|
||||
for(it = m_freeList.m_first.m_next; it->m_size < block->m_size; it = it->m_next);
|
||||
block->InsertHeapFreeBlock(it->m_prev);
|
||||
}
|
||||
};
|
Loading…
Reference in a new issue