usbloadergx/source/memory/mem2alloc.hpp

// 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;
        }
        unsigned int FreeSize();
        //
        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)