memfrmheap.h

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#pragma once
#include <wut.h>
#include "memheap.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum MEMFrmHeapFreeMode
{
 MEM_FRM_HEAP_FREE_HEAD = 1 << 0,
 MEM_FRM_HEAP_FREE_TAIL = 1 << 1,
 MEM_FRM_HEAP_FREE_ALL = MEM_FRM_HEAP_FREE_HEAD | MEM_FRM_HEAP_FREE_TAIL,
} MEMFrmHeapFreeMode;
 
typedef struct MEMFrmHeap MEMFrmHeap;
typedef struct MEMFrmHeapState MEMFrmHeapState;
 
struct MEMFrmHeapState
{
 uint32_t tag;
 void *head;
 void *tail;
 MEMFrmHeapState *previous;
};
WUT_CHECK_OFFSET(MEMFrmHeapState, 0x00, tag);
WUT_CHECK_OFFSET(MEMFrmHeapState, 0x04, head);
WUT_CHECK_OFFSET(MEMFrmHeapState, 0x08, tail);
WUT_CHECK_OFFSET(MEMFrmHeapState, 0x0C, previous);
WUT_CHECK_SIZE(MEMFrmHeapState, 0x10);
 
struct WUT_PACKED MEMFrmHeap
{
 MEMHeapHeader header;
 void *head;
 void *tail;
 MEMFrmHeapState *previousState;
};
WUT_CHECK_OFFSET(MEMFrmHeap, 0x00, header);
WUT_CHECK_OFFSET(MEMFrmHeap, 0x40, head);
WUT_CHECK_OFFSET(MEMFrmHeap, 0x44, tail);
WUT_CHECK_OFFSET(MEMFrmHeap, 0x48, previousState);
WUT_CHECK_SIZE(MEMFrmHeap, 0x4C);
 
MEMHeapHandle
MEMCreateFrmHeapEx(void *heap,
 uint32_t size,
 uint32_t flags);
 
void *
MEMDestroyFrmHeap(MEMHeapHandle heap);
 
void *
MEMAllocFromFrmHeapEx(MEMHeapHandle heap,
 uint32_t size,
 int alignment);
 
void
MEMFreeToFrmHeap(MEMHeapHandle heap,
 MEMFrmHeapFreeMode mode);
 
BOOL
MEMRecordStateForFrmHeap(MEMHeapHandle heap,
 uint32_t tag);
 
BOOL
MEMFreeByStateToFrmHeap(MEMHeapHandle heap,
 uint32_t tag);
 
uint32_t
MEMAdjustFrmHeap(MEMHeapHandle heap);
 
uint32_t
MEMResizeForMBlockFrmHeap(MEMHeapHandle heap,
 uint32_t addr,
 uint32_t size);
 
uint32_t
MEMGetAllocatableSizeForFrmHeapEx(MEMHeapHandle heap,
 int alignment);
 
#ifdef __cplusplus
}
#endif