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#include "JSystem/JSystem.h" // IWYU pragma: keep
#include "JSystem/JKernel/JKRAramHeap.h"
#include "JSystem/JKernel/JKRHeap.h"
#include "global.h"
#include <climits>
JSUList<JKRAramBlock> JKRAramHeap::sAramList;
JKRAramHeap::JKRAramHeap(u32 startAddress, u32 size) {
OSInitMutex(&mMutex);
mHeap = JKRHeap::findFromRoot(this);
mSize = ALIGN_PREV(size, 0x20);
mHeadAddress = ALIGN_NEXT(startAddress, 0x20);
mTailAddress = mHeadAddress + mSize;
mGroupId = -1;
JKRAramBlock* block = new (mHeap, 0) JKRAramBlock(mHeadAddress, 0, mSize, -1, false);
sAramList.append(&block->mBlockLink);
}
JKRAramHeap::~JKRAramHeap() {
for (JSUListIterator<JKRAramBlock> iterator = sAramList.getFirst(); iterator != sAramList.getEnd(); delete (iterator++).getObject()) {}
}
JKRAramBlock* JKRAramHeap::alloc(u32 size, JKRAramHeap::EAllocMode allocationMode) {
lock();
JKRAramBlock* block;
if (allocationMode == JKRAramHeap::HEAD) {
block = allocFromHead(size);
} else {
block = allocFromTail(size);
}
unlock();
return block;
}
JKRAramBlock* JKRAramHeap::allocFromHead(u32 size) {
u32 alignedSize = ALIGN_NEXT(size, 0x20);
u32 bestFreeSize = UINT_MAX;
JKRAramBlock* bestBlock = NULL;
for (JSUListIterator<JKRAramBlock> iterator = sAramList.getFirst(); iterator != sAramList.getEnd(); ++iterator) {
JKRAramBlock* block = iterator.getObject();
if (block->mFreeSize < alignedSize) {
continue;
}
if (bestFreeSize <= block->mFreeSize) {
continue;
}
bestFreeSize = block->mFreeSize;
bestBlock = block;
if (bestFreeSize == alignedSize) {
break;
}
}
if (bestBlock) {
return bestBlock->allocHead(alignedSize, mGroupId, this);
}
return NULL;
}
JKRAramBlock* JKRAramHeap::allocFromTail(u32 size) {
u32 alignedSize = ALIGN_NEXT(size, 0x20);
JKRAramBlock* tailBlock = NULL;
for (JSUListIterator<JKRAramBlock> iterator = sAramList.getLast(); iterator != sAramList.getEnd(); --iterator) {
JKRAramBlock* block = iterator.getObject();
if (block->mFreeSize >= alignedSize) {
tailBlock = block;
break;
}
}
if (tailBlock) {
return tailBlock->allocTail(alignedSize, mGroupId, this);
}
return NULL;
}
u32 JKRAramHeap::getFreeSize(void) {
u32 maxFreeSize = 0;
lock();
for (JSUListIterator<JKRAramBlock> iterator = sAramList.getFirst(); iterator != sAramList.getEnd(); ++iterator) {
if (iterator->mFreeSize > maxFreeSize) {
maxFreeSize = iterator->mFreeSize;
}
}
unlock();
return maxFreeSize;
}
u32 JKRAramHeap::getTotalFreeSize(void) {
u32 totalFreeSize = 0;
lock();
for (JSUListIterator<JKRAramBlock> iterator = sAramList.getFirst(); iterator != sAramList.getEnd(); ++iterator) {
totalFreeSize += iterator->mFreeSize;
}
unlock();
return totalFreeSize;
}
void JKRAramHeap::dump(void) {
lock();
OS_REPORT("\nJKRAramHeap dump\n");
OS_REPORT(" attr address: size gid\n");
u32 usedBytes = 0;
for (JSUListIterator<JKRAramBlock> it = sAramList.getFirst(); it != sAramList.getEnd(); ++it) {
if (it->mSize) {
OS_REPORT("%s %08x: %08x %3d\n", it->isTempMemory() ? " temp" : "alloc", it->mAddress, it->mSize, it->mGroupId);
}
if (it->mFreeSize) {
OS_REPORT(" free %08x: %08x 0\n", it->mAddress + it->mSize, it->mFreeSize);
}
usedBytes += it->mSize;
}
OS_REPORT("%d / %d bytes (%6.2f%%) used\n", usedBytes, mSize, f32(usedBytes) / f32(mSize) * 100.0f);
unlock();
}
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