usbloadergx/source/memory/mem2alloc.h

// MEM2 allocator
// Made as a class so i can have 2 sections, one being dedicated to the covers

#ifndef __MEM2ALLOC_HPP
#define __MEM2ALLOC_HPP

#include <ogc/mutex.h>

class CMEM2Alloc {
public:
    void *allocate(unsigned int s);
    void release(void *p);
    void *reallocate(void *p, unsigned int s);
    void init(unsigned int size);
    void init(void *addr, void *end);
    void cleanup(void);
    void clear(void);
    static unsigned int usableSize(void *p);
    void forceEndAddress(void *newAddr) {
        m_endAddress = (SBlock *)newAddr;
    }
    void *getEndAddress(void) const {
        return m_endAddress;
    }
    void info(void *&address, unsigned int &size) const {
        address = m_baseAddress;
        size = (const char *)m_endAddress - (const char *)m_baseAddress;
    }
    //
    CMEM2Alloc(void) : m_baseAddress(0), m_endAddress(0), m_first(0), m_mutex(0) { }
private:
    struct SBlock {
        unsigned int s;
        SBlock *next;
        SBlock *prev;
        bool f;
    } __attribute__((aligned(32)));
    SBlock *m_baseAddress;
    SBlock *m_endAddress;
    SBlock *m_first;
    mutex_t m_mutex;
private:
    CMEM2Alloc(const CMEM2Alloc &);
};

#endif // !defined(__MEM2ALLOC_HPP)