PortEventPoll.h 4.0 KB

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  1. /* <!-- copyright */
  2. /*
  3. * aria2 - The high speed download utility
  4. *
  5. * Copyright (C) 2010 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_PORT_EVENT_POLL_H_
  36. #define _D_PORT_EVENT_POLL_H_
  37. #include "EventPoll.h"
  38. #ifdef HAVE_PORT_H
  39. # include <port.h>
  40. #endif // HAVE_PORT_H
  41. #include <deque>
  42. #include "Event.h"
  43. #ifdef ENABLE_ASYNC_DNS
  44. # include "AsyncNameResolver.h"
  45. #endif // ENABLE_ASYNC_DNS
  46. namespace aria2 {
  47. class Logger;
  48. class PortEventPoll : public EventPoll {
  49. private:
  50. class KSocketEntry;
  51. typedef Event<KSocketEntry> KEvent;
  52. typedef CommandEvent<KSocketEntry, PortEventPoll> KCommandEvent;
  53. typedef ADNSEvent<KSocketEntry, PortEventPoll> KADNSEvent;
  54. typedef AsyncNameResolverEntry<PortEventPoll> KAsyncNameResolverEntry;
  55. friend class AsyncNameResolverEntry<PortEventPoll>;
  56. struct A2PortEvent {
  57. int events;
  58. KSocketEntry* socketEntry;
  59. };
  60. class KSocketEntry:
  61. public SocketEntry<KCommandEvent, KADNSEvent> {
  62. public:
  63. KSocketEntry(sock_t socket);
  64. A2PortEvent getEvents();
  65. };
  66. friend int accumulateEvent(int events, const KEvent& event);
  67. private:
  68. std::deque<SharedHandle<KSocketEntry> > _socketEntries;
  69. #ifdef ENABLE_ASYNC_DNS
  70. std::deque<SharedHandle<KAsyncNameResolverEntry> > _nameResolverEntries;
  71. #endif // ENABLE_ASYNC_DNS
  72. int _port;
  73. size_t _portEventsSize;
  74. port_event_t* _portEvents;
  75. static const size_t PORT_EVENTS_SIZE = 1024;
  76. Logger* _logger;
  77. bool addEvents(sock_t socket, const KEvent& event);
  78. bool deleteEvents(sock_t socket, const KEvent& event);
  79. bool addEvents(sock_t socket, Command* command, int events,
  80. const SharedHandle<AsyncNameResolver>& rs);
  81. bool deleteEvents(sock_t socket, Command* command,
  82. const SharedHandle<AsyncNameResolver>& rs);
  83. public:
  84. PortEventPoll();
  85. bool good() const;
  86. virtual ~PortEventPoll();
  87. virtual void poll(const struct timeval& tv);
  88. virtual bool addEvents(sock_t socket,
  89. Command* command, EventPoll::EventType events);
  90. virtual bool deleteEvents(sock_t socket,
  91. Command* command, EventPoll::EventType events);
  92. #ifdef ENABLE_ASYNC_DNS
  93. virtual bool addNameResolver(const SharedHandle<AsyncNameResolver>& resolver,
  94. Command* command);
  95. virtual bool deleteNameResolver
  96. (const SharedHandle<AsyncNameResolver>& resolver, Command* command);
  97. #endif // ENABLE_ASYNC_DNS
  98. static const int IEV_READ = POLLIN;
  99. static const int IEV_WRITE = POLLOUT;
  100. static const int IEV_ERROR = POLLERR;
  101. static const int IEV_HUP = POLLHUP;
  102. };
  103. } // namespace aria2
  104. #endif // _D_PORT_EVENT_POLL_H_