Segment.h 2.4 KB

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  1. /* <!-- copyright */
  2. /*
  3. * aria2 - The high speed download utility
  4. *
  5. * Copyright (C) 2006 Tatsuhiro Tsujikawa
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. *
  21. * In addition, as a special exception, the copyright holders give
  22. * permission to link the code of portions of this program with the
  23. * OpenSSL library under certain conditions as described in each
  24. * individual source file, and distribute linked combinations
  25. * including the two.
  26. * You must obey the GNU General Public License in all respects
  27. * for all of the code used other than OpenSSL. If you modify
  28. * file(s) with this exception, you may extend this exception to your
  29. * version of the file(s), but you are not obligated to do so. If you
  30. * do not wish to do so, delete this exception statement from your
  31. * version. If you delete this exception statement from all source
  32. * files in the program, then also delete it here.
  33. */
  34. /* copyright --> */
  35. #ifndef _D_SEGMENT_H_
  36. #define _D_SEGMENT_H_
  37. #include "common.h"
  38. class Piece;
  39. extern typedef SharedHandle<Piece> PieceHandle;
  40. class Segment {
  41. public:
  42. virtual ~Segment() {}
  43. virtual bool complete() const = 0;
  44. virtual int32_t getIndex() const = 0;
  45. virtual int64_t getPosition() const = 0;
  46. virtual int64_t getPositionToWrite() const = 0;
  47. virtual int32_t getLength() const = 0;
  48. virtual int32_t getSegmentLength() const = 0;
  49. virtual int32_t getWrittenLength() const = 0;
  50. virtual int32_t getOverflowLength() const = 0;
  51. virtual void updateWrittenLength(int32_t bytes) = 0;
  52. virtual void clear() = 0;
  53. virtual PieceHandle getPiece() const = 0;
  54. bool operator==(const Segment& segment) const
  55. {
  56. return getIndex() == segment.getIndex();
  57. }
  58. };
  59. typedef SharedHandle<Segment> SegmentHandle;
  60. typedef deque<SegmentHandle> Segments;
  61. #endif // _D_SEGMENT_H_