BtLeecherStateChoke.h 3.1 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_BT_LEECHER_STATE_CHOKE_H
  36. #define D_BT_LEECHER_STATE_CHOKE_H
  37. #include "common.h"
  38. #include <vector>
  39. #include "SharedHandle.h"
  40. #include "TimerA2.h"
  41. namespace aria2 {
  42. class Peer;
  43. class Logger;
  44. class BtLeecherStateChoke {
  45. private:
  46. int round_;
  47. Timer lastRound_;
  48. Logger* logger_;
  49. class PeerEntry {
  50. private:
  51. SharedHandle<Peer> peer_;
  52. unsigned int downloadSpeed_;
  53. bool regularUnchoker_;
  54. public:
  55. PeerEntry(const SharedHandle<Peer>& peer);
  56. bool operator<(const PeerEntry& rhs) const;
  57. const SharedHandle<Peer>& getPeer() const;
  58. unsigned int getDownloadSpeed() const;
  59. bool isRegularUnchoker() const;
  60. bool isSnubbing() const;
  61. void enableChokingRequired();
  62. void disableChokingRequired();
  63. void enableOptUnchoking();
  64. void disableOptUnchoking();
  65. };
  66. void plannedOptimisticUnchoke(std::vector<PeerEntry>& peerEntries);
  67. void regularUnchoke(std::vector<PeerEntry>& peerEntries);
  68. class PeerFilter {
  69. private:
  70. bool amChoking_;
  71. bool peerInterested_;
  72. public:
  73. PeerFilter(bool amChoking, bool peerInterested):
  74. amChoking_(amChoking),
  75. peerInterested_(peerInterested) {}
  76. bool operator()(const PeerEntry& peerEntry) const;
  77. };
  78. class BtLeecherStateChokeGenPeerEntry {
  79. public:
  80. PeerEntry operator()(const SharedHandle<Peer>& peer) const
  81. {
  82. return PeerEntry(peer);
  83. }
  84. };
  85. public:
  86. BtLeecherStateChoke();
  87. ~BtLeecherStateChoke();
  88. void executeChoke(const std::vector<SharedHandle<Peer> >& peerSet);
  89. const Timer& getLastRound() const;
  90. };
  91. } // namespace aria2
  92. #endif // D_BT_LEECHER_STATE_CHOKE_H