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#ifndef __lib_base_rawfile_h
#define __lib_base_rawfile_h
#include <string>
#include <lib/base/idatasource.h>
class eRawFile: public iDataSource
{
DECLARE_REF(eRawFile);
eSingleLock m_lock;
public:
eRawFile();
~eRawFile();
int open(const char *filename, int cached = 0);
void setfd(int fd);
int close();
// iDataSource
off_t lseek(off_t offset, int whence);
ssize_t read(off_t offset, void *buf, size_t count);
off_t length();
int valid();
private:
int m_fd; /* for uncached */
FILE *m_file; /* for cached */
int m_cached;
std::string m_basename;
off_t m_splitsize, m_totallength, m_current_offset, m_base_offset, m_last_offset;
int m_nrfiles;
void scan();
int m_current_file;
int switchOffset(off_t off);
off_t lseek_internal(off_t offset, int whence);
FILE *openFileCached(int nr);
int openFileUncached(int nr);
};
#endif
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