-#ifndef __lib_base_idatasource_h
-#define __lib_base_idatasource_h
-
-#include <lib/base/object.h>
-
-class iDataSource: public iObject
-{
-public:
- /* NOTE: should only be used to get current position or filelength */
- virtual off_t lseek(off_t offset, int whence)=0;
-
- /* NOTE: you must be able to handle short reads! */
- virtual ssize_t read(off_t offset, void *buf, size_t count)=0; /* NOTE: this is what you in normal case have to use!! */
-
- virtual off_t length()=0;
- virtual int valid()=0;
-};
-
-#endif