tp/include/JSystem/JKernel/JKRAramHeap.h

#ifndef JKRARAMHEAP_H
#define JKRARAMHEAP_H

#include "JSystem/JKernel/JKRAramBlock.h"
#include "JSystem/JKernel/JKRDisposer.h"
#include <dolphin/os.h>

/**
 * @ingroup jsystem-jkernel
 * 
 */
class JKRAramHeap : public JKRDisposer {
public:
    enum EAllocMode {
        HEAD = 0,
        TAIL = 1,
    };

public:
    // TODO: fix type
    static JSUList<JKRAramBlock> sAramList;

    JKRAramHeap(u32, u32);
    virtual ~JKRAramHeap();

    JKRAramBlock* alloc(u32, EAllocMode);
    JKRAramBlock* allocFromHead(u32);
    JKRAramBlock* allocFromTail(u32);
    u32 getFreeSize(void);
    u32 getTotalFreeSize(void);
    // u32 getUsedSize(void);
    void dump(void);
    void free(JKRAramBlock *block) {
        delete block;
    }

    u8 getCurrentGroupID() const { return mGroupId; }

    JKRHeap* getMgrHeap() const { return mHeap; }

private:
    void lock() { OSLockMutex(&mMutex); }

    void unlock() { OSUnlockMutex(&mMutex); }

public:
    /* 0x00 */  // vtable
    /* 0x04 */  // JKRDisposer
    /* 0x18 */ OSMutex mMutex;
    /* 0x30 */ JKRHeap* mHeap;
    /* 0x34 */ u32 mHeadAddress;
    /* 0x38 */ u32 mTailAddress;
    /* 0x3C */ u32 mSize;
    /* 0x40 */ u8 mGroupId;
    /* 0x41 */ u8 padding_0x41[3];
};

#endif /* JKRARAMHEAP_H */