expHeap.h

Go to the documentation of this file.

#ifndef _REVOLUTION_MEM_EXPHEAP_H_
#define _REVOLUTION_MEM_EXPHEAP_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <revolution/mem/heapCommon.h>
 
typedef struct MEMiExpHeapMBlockHead MEMiExpHeapMBlockHead;
 
struct MEMiExpHeapMBlockHead {
    u16 signature;
 
    union {
        u16 val;
 
        struct {
            u16 allocDir : 1;
            u16 alignment : 7;
            u16 groupID : 8;
        } fields;
    } attribute;
 
    u32 blockSize;
    MEMiExpHeapMBlockHead* prev;
    MEMiExpHeapMBlockHead* next;
};
 
typedef struct MEMiExpMBlockList MEMiExpMBlockList;
 
struct MEMiExpMBlockList {
    MEMiExpHeapMBlockHead* head;
    MEMiExpHeapMBlockHead* tail;
};
 
typedef struct MEMiExpHeapHead MEMiExpHeapHead;
 
struct MEMiExpHeapHead {
    MEMiExpMBlockList mbFreeList;
    MEMiExpMBlockList mbUsedList;
 
    u16 groupID;
 
    union {
        u16 val;
        struct {
            u16 _reserved : 14;
            u16 useMarginOfAlign : 1;
            u16 allocMode : 1;
        } fields;
    } feature;
};
 
MEMHeapHandle MEMCreateExpHeapEx(void*, u32, u16);
void* MEMDestroyExpHeap(MEMHeapHandle);
void* MEMAllocFromExpHeapEx(MEMHeapHandle, u32, int);
void MEMFreeToExpHeap(MEMHeapHandle, void*);
u32 MEMGetAllocatableSizeForExpHeapEx(MEMHeapHandle, int);
MEMHeapHandle MEMCreateFrmHeapEx(void* start, u32 size, u16 opt);
MEMHeapHandle MEMDestroyFrmHeap(MEMHeapHandle heap);
 
static inline MEMHeapHandle MEMCreateExpHeap(void* start, u32 size) {
    return MEMCreateExpHeapEx(start, size, 0);
}
 
static inline void* MEMAllocFromExpHeap(MEMHeapHandle heap, u32 size) {
    return MEMAllocFromExpHeapEx(heap, size, 4);
}
 
#ifdef __cplusplus
}
#endif
 
#endif  // _REVOLUTION_MEM_EXPHEAP_H_