MemoryMap.h

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#ifndef MODULE_MEMORY_MAP
#define MODULE_MEMORY_MAP

#include <cstdlib>
#include <sys/stat.h>

namespace PLearn {
using namespace std;

#if !(!defined(_MSC_VER) && !defined(_MINGW_))

typedef void * tFileHandle;

const int STORAGE_UNUSED_HANDLE = 0;


void * memoryMap(const char *filename, tFileHandle & file_handle, bool readonly=true, int offset_=0, int length=0);


bool memoryUnmap(void * pointer, tFileHandle file_handle);

#else 

typedef int tFileHandle;
const int STORAGE_UNUSED_HANDLE = -1;


void * MemoryMap(const char *filename,tFileHandle & handle, bool read_only, off_t & filesize);

void memoryUnmap(void * mapped_pointer, tFileHandle handle, int length);

#endif

} // end of namespace PLearn

#endif 

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