usbloadergx/source/memory/mem2alloc.hpp
2010-09-24 00:48:03 +00:00

56 lines
1.4 KiB
C++

// 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)