Initial
This commit is contained in:
Ilusha
IlushaShurupov
parent
d4c558a59a
commit
db05d963be
74 changed files with 4473 additions and 3231 deletions
21
Allocators/private/Allocators.cpp
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21
Allocators/private/Allocators.cpp
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#include "Allocators.hpp"
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static tp::ModuleManifest* sModuleDependencies[] = { &tp::gModuleBase, NULL };
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tp::ModuleManifest tp::gModuleAllocator = ModuleManifest("Allocators", NULL, NULL, sModuleDependencies);
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void* operator new(size_t aSize) { return tp::HeapAllocGlobal::allocate(aSize); }
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void* operator new[](size_t aSize) { return tp::HeapAllocGlobal::allocate(aSize); }
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void operator delete(void* aPtr) { tp::HeapAllocGlobal::deallocate(aPtr); }
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void operator delete[](void* aPtr) { tp::HeapAllocGlobal::deallocate(aPtr); }
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void* operator new(size_t aSize, tp::HeapAlloc& aAlloc) { return aAlloc.allocate(aSize); }
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void* operator new[](size_t aSize, tp::HeapAlloc& aAlloc) { return aAlloc.allocate(aSize); }
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void operator delete(void* aPtr, tp::HeapAlloc& aAlloc) { aAlloc.deallocate(aPtr); }
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void operator delete[](void* aPtr, tp::HeapAlloc& aAlloc) { aAlloc.deallocate(aPtr); }
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void* operator new(size_t aSize, tp::HeapAllocGlobal& aAlloc) { return aAlloc.allocate(aSize); }
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void* operator new[](size_t aSize, tp::HeapAllocGlobal& aAlloc) { return aAlloc.allocate(aSize); }
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void operator delete(void* aPtr, tp::HeapAllocGlobal& aAlloc) { aAlloc.deallocate(aPtr); }
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void operator delete[](void* aPtr, tp::HeapAllocGlobal& aAlloc) { aAlloc.deallocate(aPtr); }
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114
Allocators/private/ChunkAllocator.cpp
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114
Allocators/private/ChunkAllocator.cpp
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@ -0,0 +1,114 @@
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/*
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*
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* Implementation uses embedded one-directional linked list to track free blocks.
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* The embedded part ensures that there is no memory overhead on block specifically.
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* Linked list is initialized iteratively on each allocation if it has not been already.
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* Allocating:
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* 1) updating list entry to stored in the entry itself next free pointer
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* 2) returning entry before (1).
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*
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* Deallocating:
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* 1) assigning list entry value to the deleted block
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* 2) updating list entry to that block.
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*
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*/
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#include "ChunkAllocator.hpp"
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#include "PrivateConfig.hpp"
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#include "HeapAllocatorGlobal.hpp"
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using namespace tp;
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enum : ualni {
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ALIGNED_SIZE = ENV_ALNI_SIZE_B,
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WRAP_SIZE_ALN = MEM_WRAP_SIZE,
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WRAP_SIZE = WRAP_SIZE_ALN * ALIGNED_SIZE,
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WRAP_VAL = MEM_WRAP_FILL_VAL,
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CLEAR_ALLOC_VAL = MEM_CLEAR_ON_ALLOC_VAL,
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CLEAR_DEALLOC_VAL = MEM_CLEAR_ON_DEALLOC_VAL,
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};
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ChunkAlloc::ChunkAlloc(ualni aBlockSize, void* aMemory, ualni aMemSize) {
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auto const temp = aBlockSize / ALIGNED_SIZE;
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mBSize = ((aBlockSize % ALIGNED_SIZE) ? temp + 1 : temp) + WRAP_SIZE_ALN * 2;
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mBuff = (ualni*) aMemory;
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mNBlocks = (aMemSize / ALIGNED_SIZE) / mBSize;
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mNFreeBlocks = mNBlocks;
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}
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ChunkAlloc::ChunkAlloc(ualni aBlockSize, ualni aNBlocks) {
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auto const temp = aBlockSize / ALIGNED_SIZE;
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mBSize = ((aBlockSize % ALIGNED_SIZE) ? temp + 1 : temp) + WRAP_SIZE_ALN * 2;
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mNBlocks = aNBlocks;
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mNFreeBlocks = mNBlocks;
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mBuff = (ualni*)HeapAllocGlobal::allocate(mNBlocks * mBSize * ALIGNED_SIZE);
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mOwnBuff = true;
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}
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void* ChunkAlloc::allocate() {
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ASSERT(mNFreeBlocks && "Out Of Memory");
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// 1) PreInitialize blocks
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if (mNInitBlocks < mNBlocks) {
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*(mBuff + mNInitBlocks * mBSize) = (ualni)(mBuff + (mNInitBlocks++) * mBSize);
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}
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// 2) Find free block and update next free block
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auto data = mNextBlock;
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mNextBlock = (ualni*)(*data);
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mNFreeBlocks--;
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#ifdef MEM_DEBUG
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// 3) Fill Wrap and offset data
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auto wrap_top = data;
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data += WRAP_SIZE_ALN;
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auto wrap_bottom = data + mBSize;
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memsetv(wrap_top, WRAP_SIZE, WRAP_VAL);
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memsetv(wrap_bottom, WRAP_SIZE, WRAP_VAL);
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// 4) Clear data
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#ifdef MEM_CLEAR_ON_ALLOC
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memsetv(data, mBSize * ALIGNED_SIZE, CLEAR_ALLOC_VAL);
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#endif
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#endif
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return data;
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}
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void ChunkAlloc::deallocate(void* aPtr) {
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auto block = (ualni*)aPtr;
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#ifdef MEM_DEBUG
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// 3) Check Wrap and offset data
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auto wrap_bottom = block + mBSize;
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auto wrap_top = block - WRAP_SIZE_ALN;
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block = wrap_top;
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// 3) Check the wrap
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RelAssert(memequalv(wrap_top, WRAP_SIZE, WRAP_VAL) && memequalv(wrap_bottom, WRAP_SIZE, WRAP_VAL) && "Allocated Block Wrap Corrupted!");
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// 4) Clear data
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#ifdef MEM_CLEAR_ON_ALLOC
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memsetv(aPtr, mBSize * ALIGNED_SIZE, CLEAR_DEALLOC_VAL);
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#endif
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#endif
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(*block) = (ualni)mNextBlock;
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mNextBlock = block;
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mNFreeBlocks++;
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}
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bool ChunkAlloc::isFull() const { return !mNFreeBlocks; }
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bool ChunkAlloc::isEmpty() const { return mNFreeBlocks == mNBlocks; }
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ChunkAlloc::~ChunkAlloc() {
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// TODO : check for leaks
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if (mOwnBuff) {
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HeapAllocGlobal::deallocate(mBuff);
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}
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}
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78
Allocators/private/HeapAllocator.cpp
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78
Allocators/private/HeapAllocator.cpp
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@ -0,0 +1,78 @@
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#include "HeapAllocator.hpp"
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#include "HeapAllocatorGlobal.hpp"
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#include "PrivateConfig.hpp"
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#include <stddef.h>
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#include <cstdlib>
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using namespace tp;
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#if not defined(MEM_DEBUG)
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// ----------------------- Release Implementation ---------------------------- //
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void* HeapAlloc::allocate(ualni aBlockSize) { return malloc(aBlockSize); }
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void HeapAlloc::deallocate(void* aPtr) { free(aPtr); }
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HeapAlloc::~HeapAlloc() {}
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#else
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namespace tp {
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struct MemHeadLocal {
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MemHeadLocal* mPrev;
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MemHeadLocal* mNext;
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};
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};
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void* HeapAlloc::allocate(ualni aBlockSize) {
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auto head = (MemHeadLocal*) HeapAllocGlobal::allocate(aBlockSize + sizeof(MemHeadLocal));
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auto out = head + 1;
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mNumAllocations++;
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if (mEntry) {
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head->mNext = mEntry->mNext;
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head->mPrev = mEntry->mPrev;
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if (mEntry->mNext) mEntry->mNext->mPrev = head;
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if (mEntry->mPrev) mEntry->mPrev->mNext = head;
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}
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else {
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head->mNext = nullptr;
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head->mPrev = nullptr;
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}
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mEntry = head;
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return out;
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}
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void HeapAlloc::deallocate(void* aPtr) {
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auto head = ((MemHeadLocal*)(aPtr)) - 1;
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mNumAllocations--;
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if (mEntry->mNext) mEntry->mNext->mPrev = mEntry->mPrev;
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if (mEntry->mPrev) mEntry->mPrev->mNext = mEntry->mNext;
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if (head == mEntry) {
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if (mEntry->mNext) {
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mEntry = mEntry->mNext;
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}
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else {
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mEntry = mEntry->mPrev;
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}
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}
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HeapAllocGlobal::deallocate(head);
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}
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HeapAlloc::~HeapAlloc() {
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if (mNumAllocations) {
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DEBUG_BREAK("Destruction of not freed Allocator");
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#ifdef MEM_STACK_TRACE
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// TODO : log leaks and free them up
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#endif
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}
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}
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#endif
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149
Allocators/private/HeapAllocatorGlobal.cpp
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149
Allocators/private/HeapAllocatorGlobal.cpp
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@ -0,0 +1,149 @@
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#include "HeapAllocatorGlobal.hpp"
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#include "PrivateConfig.hpp"
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#include "Debugging.hpp"
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#include <stddef.h>
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#include <cstdlib>
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using namespace tp;
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#if not defined(MEM_DEBUG)
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// ----------------------- Release Implementation ---------------------------- //
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void* HeapAllocGlobal::allocate(ualni aBlockSize) { return malloc(aBlockSize); }
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void HeapAllocGlobal::deallocate(void* aPtr) { free(aPtr); }
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HeapAllocGlobal::~HeapAllocGlobal() = default;
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#else
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tp::MemHead* tp::HeapAllocGlobal::mEntry = nullptr;
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tp::ualni tp::HeapAllocGlobal::mNumAllocations = 0;
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// ----------------------- Debug Implementation ---------------------------- //
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// |----------------|
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// | MemHead |
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// |----------------|
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// | wrap top |
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// |----------------| - Allocated Block Layout
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// | data |
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// |----------------|
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// | wrap bottom |
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// |----------------|
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namespace tp {
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struct MemHead {
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MemHead* mPrev;
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MemHead* mNext;
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ualni mBlockSize;
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#ifdef MEM_STACK_TRACE
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CallStackSnapshots::StackShapshot mCallStack;
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#endif
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};
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};
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enum : ualni {
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ALIGNED_SIZE = ENV_ALNI_SIZE_B,
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WRAP_SIZE = MEM_WRAP_SIZE * ALIGNED_SIZE,
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WRAP_VAL = MEM_WRAP_FILL_VAL,
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HEAD_SIZE = sizeof(MemHead),
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CLEAR_ALLOC_VAL = MEM_CLEAR_ON_ALLOC_VAL,
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CLEAR_DEALLOC_VAL = MEM_CLEAR_ON_DEALLOC_VAL,
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};
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void* HeapAllocGlobal::allocate(ualni aBlockSize) {
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static_assert(HEAD_SIZE % ALIGNED_SIZE == 0, "Heap Allocator Configuration Error");
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if (aBlockSize % ALIGNED_SIZE) {
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aBlockSize = (aBlockSize / ALIGNED_SIZE + 1) * ALIGNED_SIZE;
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}
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// 1) Allocate the block
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auto head = (MemHead*)malloc(aBlockSize + WRAP_SIZE * 2 + HEAD_SIZE);
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auto wrap_top = (int1*)(head + 1);
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auto data = wrap_top + WRAP_SIZE;
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auto wrap_bottom = data + aBlockSize;
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if (!head) { return nullptr; }
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head->mBlockSize = aBlockSize;
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// 2) Link with existing blocks
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mNumAllocations++;
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if (mEntry) {
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head->mNext = mEntry->mNext;
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head->mPrev = mEntry->mPrev;
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if (mEntry->mNext) mEntry->mNext->mPrev = head;
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if (mEntry->mPrev) mEntry->mPrev->mNext = head;
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}
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else {
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head->mNext = nullptr;
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head->mPrev = nullptr;
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}
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mEntry = head;
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// 3) Wrap fill
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memsetv(wrap_top, WRAP_SIZE, WRAP_VAL);
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memsetv(wrap_bottom, WRAP_SIZE, WRAP_VAL);
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// 4) Trace the stack
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#ifdef MEM_STACK_TRACE
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head->mCallStack = gCallStackSnapshots.capture();
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#endif
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// 5) clear data
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#ifdef MEM_CLEAR_ON_ALLOC
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memsetv(data, aBlockSize, CLEAR_ALLOC_VAL);
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#endif
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return data;
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}
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void HeapAllocGlobal::deallocate(void* aPtr) {
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// 1) Restore the pointers
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auto head = ((MemHead*)(aPtr)) - 1;
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auto wrap_top = (int1*)(head + 1);
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auto data = wrap_top + WRAP_SIZE;
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auto wrap_bottom = data + head->mBlockSize;
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// 2) Unlink with blocks
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mNumAllocations--;
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if (mEntry->mNext) mEntry->mNext->mPrev = mEntry->mPrev;
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if (mEntry->mPrev) mEntry->mPrev->mNext = mEntry->mNext;
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if (head == mEntry) {
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if (mEntry->mNext) {
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mEntry = mEntry->mNext;
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}
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else {
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mEntry = mEntry->mPrev;
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}
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}
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// 3) Check the wrap
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RelAssert(memequalv(wrap_top, WRAP_SIZE, WRAP_VAL) && memequalv(wrap_bottom, WRAP_SIZE, WRAP_VAL) && "Allocated Block Wrap Corrupted!");
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// 4) clear data
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#ifdef MEM_CLEAR_ON_ALLOC
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memsetv(data, head->mBlockSize, CLEAR_DEALLOC_VAL);
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#endif
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// 5) free the block
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free(aPtr);
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}
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HeapAllocGlobal::~HeapAllocGlobal() {
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// 1) Check for not deallocated memory
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if (mNumAllocations) {
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DEBUG_BREAK("Destruction of not freed Allocator");
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#ifdef MEM_STACK_TRACE
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// TODO: log leaks
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#endif
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}
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}
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#endif
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1
Allocators/private/PickAllocator.cpp
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1
Allocators/private/PickAllocator.cpp
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131
Allocators/private/PoolAllocator.cpp
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131
Allocators/private/PoolAllocator.cpp
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@ -0,0 +1,131 @@
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/*
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*
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Implementation:
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* Adding chunk pointer to each chunk to form one-directional list that keeps track of free chunk
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* Storing ordered pointers to chunks in order to find desired chunk from delete pointer on de-allocation in log time
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*
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* Allocations:
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* 1) allocate with chunk stored in list entry
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* 2) ...
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*
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* De-allocations:
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* 1) binary-search with delete pointer to find desired chunk
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* 2) ...
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*
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*/
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#include "Allocators.hpp"
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#include "PrivateConfig.hpp"
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void tp::PoolAlloc::Chunks::add(Chunk* aChunk) {
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// ensure order
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auto smaller_address = findUtil(mBuff, mBuff + mUsedLen, aChunk);
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for (auto iter = mBuff + mUsedLen; iter != smaller_address; iter--) { *(iter + 1) = *iter; }
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*(smaller_address + 1) = aChunk;
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mUsedLen++;
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// check for buff overflow
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if (mUsedLen == mLen) {
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auto prevBuff = mBuff;
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mBuff = (Chunk**) HeapAllocGlobal::allocate(sizeof(Chunk*) * mLen * 2);
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memcp(mBuff, prevBuff, sizeof(Chunk*) * mUsedLen);
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mLen *= 2;
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HeapAllocGlobal::deallocate(prevBuff);
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}
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}
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void tp::PoolAlloc::Chunks::remove(Chunk* aChunk) {
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// ensure order
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auto del_address = findUtil(mBuff, mBuff + mUsedLen, aChunk);
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for (auto iter = del_address; iter != mBuff + mUsedLen; iter++) { *iter = *(iter + 1); }
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mUsedLen--;
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// check for buff low usage
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if ((halnf)mUsedLen / (halnf)mLen < 0.25f) {
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auto prevBuff = mBuff;
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mBuff = (Chunk**)HeapAllocGlobal::allocate(sizeof(Chunk*) * mLen / 2);
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memcp(mBuff, prevBuff, sizeof(Chunk*) * mUsedLen);
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mLen /= 2;
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HeapAllocGlobal::deallocate(prevBuff);
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}
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}
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tp::PoolAlloc::Chunk* tp::PoolAlloc::Chunks::find(void* aPtr) {
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return *findUtil(mBuff, mBuff + mUsedLen, aPtr);
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}
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tp::PoolAlloc::Chunk* tp::PoolAlloc::Chunks::findNotFull() {
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for (ualni idx = 0; idx < mUsedLen; idx++) {
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if (!mBuff[idx]->isFull()) {
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return mBuff[idx];
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}
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}
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return nullptr;
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}
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tp::PoolAlloc::Chunk** tp::PoolAlloc::Chunks::findUtil(Chunk** aLeft, Chunk** aRight, void* aPtr) {
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auto range = ualni(aRight - aLeft);
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if (range == 1) { return aLeft; }
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auto middle = aLeft + range / 2;
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return (aPtr > *middle) ? findUtil(middle, aRight, aPtr) : findUtil(aLeft, middle, aPtr);
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}
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tp::PoolAlloc::PoolAlloc(ualni aBlockSize, ualni aChunkSize) : mBlockSize(aBlockSize), mChunkSize(aChunkSize) {}
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void* tp::PoolAlloc::allocate() {
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if (!mFreeChunk || mFreeChunk->isFull()) {
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auto new_free_chunk = mChunks.findNotFull();
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if (!new_free_chunk) {
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new_free_chunk = new ((Chunk*)HeapAllocGlobal::allocate(sizeof(Chunk))) Chunk(mBlockSize, mChunkSize);
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ASSERT(new_free_chunk);
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mChunks.add(new_free_chunk);
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if (mFreeChunk) {
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new_free_chunk->mNext = mFreeChunk->mNext;
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new_free_chunk->mPrev = mFreeChunk->mPrev;
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if (mFreeChunk->mNext) mFreeChunk->mNext->mPrev = new_free_chunk;
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if (mFreeChunk->mPrev) mFreeChunk->mPrev->mNext = new_free_chunk;
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||||
}
|
||||
else {
|
||||
new_free_chunk->mNext = nullptr;
|
||||
new_free_chunk->mPrev = nullptr;
|
||||
}
|
||||
|
||||
mFreeChunk = new_free_chunk;
|
||||
}
|
||||
}
|
||||
|
||||
return mFreeChunk->allocate();
|
||||
}
|
||||
|
||||
void tp::PoolAlloc::deallocate(void* aPtr) {
|
||||
auto chunk = mChunks.find(aPtr);
|
||||
chunk->deallocate(aPtr);
|
||||
|
||||
if (mFreeChunk->isEmpty()) {
|
||||
|
||||
Chunk* new_chunk = nullptr;
|
||||
for (ualni idx = 0; idx < mChunks.mUsedLen; idx++) {
|
||||
if (!mChunks.mBuff[idx]->isFull() && new_chunk != mFreeChunk) {
|
||||
new_chunk = mChunks.mBuff[idx];
|
||||
}
|
||||
}
|
||||
|
||||
if (new_chunk) {
|
||||
if (mFreeChunk->mNext) mFreeChunk->mNext->mPrev = mFreeChunk->mPrev;
|
||||
if (mFreeChunk->mPrev) mFreeChunk->mPrev->mNext = mFreeChunk->mNext;
|
||||
mChunks.remove(mFreeChunk);
|
||||
HeapAllocGlobal::deallocate(mFreeChunk);
|
||||
mFreeChunk = new_chunk;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
tp::PoolAlloc::~PoolAlloc() = default;
|
||||
10
Allocators/private/PrivateConfig.hpp
Normal file
10
Allocators/private/PrivateConfig.hpp
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
#pragma once
|
||||
|
||||
#define MEM_WRAP_SIZE 8 // Wrapping Size in aligned units
|
||||
#define MEM_WRAP_FILL_VAL 0xBB // Wrapping Fill Value
|
||||
#define MEM_CLEAR_ON_ALLOC // Clear data on allocation
|
||||
#define MEM_CLEAR_ON_DEALLOC // Clear data on free
|
||||
#define MEM_CLEAR_ON_DEALLOC_VAL 0xAA // Clear data on free
|
||||
#define MEM_CLEAR_ON_ALLOC_VAL 0xCC // Clear data on free
|
||||
#define MEM_STACK_TRACE // Save stack on allocation call
|
||||
#define MEM_STACK_TRACE_MAX_DEPTH 32 // Call stack max depth
|
||||
Loading…
Add table
Add a link
Reference in a new issue