BlockFile.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2005 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// dspsr/Kernel/Classes/dsp/BlockFile.h
 
 
#ifndef __dsp_BlockFile_h
#define __dsp_BlockFile_h
 
#include "dsp/File.h"
 
namespace dsp {
 
  class BlockFile : public File
  {
    
  public:
    
    BlockFile (const char* name);
    
    virtual ~BlockFile ();
 
    uint64_t get_block_data_bytes () const;
 
  protected:
 
    uint64_t block_bytes;
 
    uint64_t block_header_bytes;
 
    uint64_t block_tailer_bytes;
 
    uint64_t current_block_byte;
 
    uint64_t total_bytes_missing;
    
 
    virtual int64_t fstat_file_ndat(uint64_t tailer_bytes=0);
 
 
    virtual int64_t load_bytes (unsigned char* buffer, uint64_t nbytes);
 
 
    virtual int64_t seek_bytes (uint64_t bytes);
 
 
    virtual uint64_t skip_extra ();
 
  private:
 
    void init();
 
  };
 
}
 
#endif // !defined(__File_h)