vcglib/apps/nexus/mfile.h

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2004-10-21 14:14:02 +02:00
#ifndef NXS_MFILE_H
#define NXS_MFILE_H
#include "file.h"
#include <string>
#include <vector>
namespace nxs {
class MFile {
public:
MFile() {}
~MFile() { Close(); }
//max is so default is 1 G
bool Create(const std::string &filename,
unsigned int max_file_size = (1<<30));
bool Load(const std::string &filename, bool readonly = false);
void Close();
unsigned long long Length() { return size; }
void Redim(unsigned long long size);
void SetPosition(unsigned long long pos);
void ReadBuffer(void *data, unsigned int size);
void WriteBuffer(void *data, unsigned int size);
bool IsReadOnly() { return readonly; }
protected:
std::string filename;
std::vector<File> files;
unsigned int curr_pos;
unsigned int curr_fp;
unsigned long long size;
unsigned int max_size;
bool readonly;
private:
//all theese refer to the last in the fp.
void AddFile();
void RemoveFile();
void RedimLast(unsigned int sz);
unsigned int GetSize();
std::string Name(unsigned int n);
};
}
#endif