2013-02-16 16:14:39 -08:00

47 lines
1.1 KiB
C++

#ifndef MMF_H
#define MMF_H
#include "../common/types.h"
#ifdef _WINDOWS
#include <windows.h>
#else
//#include "MMFMutex.h"
class MMFMutex;
#endif
class MMF {
public:
struct MMF_Struct {
bool Loaded;
uint32 datasize;
uint8 data[0];
};
MMF();
virtual ~MMF();
bool Open(const char* iName, uint32 iSize);
void Close();
const void* GetHandle() { if (IsLoaded()) { return SharedMemory->data; } return 0; }
void* GetWriteableHandle() { if (!IsLoaded() && CanWrite()) { return SharedMemory->data; } return 0; }
inline bool IsOpen() { return (bool) (SharedMemory != 0); }
inline bool IsLoaded() { if (SharedMemory) { return SharedMemory->Loaded; } return false; }
bool SetLoaded() { if (SharedMemory && CanWrite()) { SharedMemory->Loaded = true; return true; } return false; }
inline bool CanWrite() { if (SharedMemory) { return pCanWrite; } return false; }
#ifndef WIN32
bool m_alloc;
#endif
private:
bool pCanWrite;
MMF_Struct* SharedMemory;
#ifdef _WINDOWS
HANDLE hMapObject;
LPVOID lpvMem;
#else
void* lpvMem;
MMFMutex* pMMFMutex;
#endif
};
#endif