protected:
// do read up to size bytes of data into the provided buffer
//
- // this method should return 0 if EOF has been reached or an error occured
+ // this method should return 0 if EOF has been reached or an error occurred
// (m_lasterror should be set accordingly as well) or the number of bytes
// read
virtual size_t OnSysRead(void *buffer, size_t size) = 0;