multicast.hpp 4.7 KB

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  1. //
  2. // ip/multicast.hpp
  3. // ~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  6. //
  7. // Distributed under the Boost Software License, Version 1.0. (See accompanying
  8. // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  9. //
  10. #ifndef ASIO_IP_MULTICAST_HPP
  11. #define ASIO_IP_MULTICAST_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include "asio/detail/config.hpp"
  16. #include <cstddef>
  17. #include "asio/ip/detail/socket_option.hpp"
  18. #include "asio/detail/push_options.hpp"
  19. namespace asio {
  20. namespace ip {
  21. namespace multicast {
  22. /// Socket option to join a multicast group on a specified interface.
  23. /**
  24. * Implements the IPPROTO_IP/IP_ADD_MEMBERSHIP socket option.
  25. *
  26. * @par Examples
  27. * Setting the option to join a multicast group:
  28. * @code
  29. * asio::ip::udp::socket socket(io_service);
  30. * ...
  31. * asio::ip::address multicast_address =
  32. * asio::ip::address::from_string("225.0.0.1");
  33. * asio::ip::multicast::join_group option(multicast_address);
  34. * socket.set_option(option);
  35. * @endcode
  36. *
  37. * @par Concepts:
  38. * SettableSocketOption.
  39. */
  40. #if defined(GENERATING_DOCUMENTATION)
  41. typedef implementation_defined join_group;
  42. #else
  43. typedef asio::ip::detail::socket_option::multicast_request<
  44. IPPROTO_IP, IP_ADD_MEMBERSHIP, IPPROTO_IPV6, IPV6_JOIN_GROUP> join_group;
  45. #endif
  46. /// Socket option to leave a multicast group on a specified interface.
  47. /**
  48. * Implements the IPPROTO_IP/IP_DROP_MEMBERSHIP socket option.
  49. *
  50. * @par Examples
  51. * Setting the option to leave a multicast group:
  52. * @code
  53. * asio::ip::udp::socket socket(io_service);
  54. * ...
  55. * asio::ip::address multicast_address =
  56. * asio::ip::address::from_string("225.0.0.1");
  57. * asio::ip::multicast::leave_group option(multicast_address);
  58. * socket.set_option(option);
  59. * @endcode
  60. *
  61. * @par Concepts:
  62. * SettableSocketOption.
  63. */
  64. #if defined(GENERATING_DOCUMENTATION)
  65. typedef implementation_defined leave_group;
  66. #else
  67. typedef asio::ip::detail::socket_option::multicast_request<
  68. IPPROTO_IP, IP_DROP_MEMBERSHIP, IPPROTO_IPV6, IPV6_LEAVE_GROUP> leave_group;
  69. #endif
  70. /// Socket option for local interface to use for outgoing multicast packets.
  71. /**
  72. * Implements the IPPROTO_IP/IP_MULTICAST_IF socket option.
  73. *
  74. * @par Examples
  75. * Setting the option:
  76. * @code
  77. * asio::ip::udp::socket socket(io_service);
  78. * ...
  79. * asio::ip::address_v4 local_interface =
  80. * asio::ip::address_v4::from_string("1.2.3.4");
  81. * asio::ip::multicast::outbound_interface option(local_interface);
  82. * socket.set_option(option);
  83. * @endcode
  84. *
  85. * @par Concepts:
  86. * SettableSocketOption.
  87. */
  88. #if defined(GENERATING_DOCUMENTATION)
  89. typedef implementation_defined outbound_interface;
  90. #else
  91. typedef asio::ip::detail::socket_option::network_interface<
  92. IPPROTO_IP, IP_MULTICAST_IF, IPPROTO_IPV6, IPV6_MULTICAST_IF>
  93. outbound_interface;
  94. #endif
  95. /// Socket option for time-to-live associated with outgoing multicast packets.
  96. /**
  97. * Implements the IPPROTO_IP/IP_MULTICAST_TTL socket option.
  98. *
  99. * @par Examples
  100. * Setting the option:
  101. * @code
  102. * asio::ip::udp::socket socket(io_service);
  103. * ...
  104. * asio::ip::multicast::hops option(4);
  105. * socket.set_option(option);
  106. * @endcode
  107. *
  108. * @par
  109. * Getting the current option value:
  110. * @code
  111. * asio::ip::udp::socket socket(io_service);
  112. * ...
  113. * asio::ip::multicast::hops option;
  114. * socket.get_option(option);
  115. * int ttl = option.value();
  116. * @endcode
  117. *
  118. * @par Concepts:
  119. * GettableSocketOption, SettableSocketOption.
  120. */
  121. #if defined(GENERATING_DOCUMENTATION)
  122. typedef implementation_defined hops;
  123. #else
  124. typedef asio::ip::detail::socket_option::multicast_hops<
  125. IPPROTO_IP, IP_MULTICAST_TTL, IPPROTO_IPV6, IPV6_MULTICAST_HOPS> hops;
  126. #endif
  127. /// Socket option determining whether outgoing multicast packets will be
  128. /// received on the same socket if it is a member of the multicast group.
  129. /**
  130. * Implements the IPPROTO_IP/IP_MULTICAST_LOOP socket option.
  131. *
  132. * @par Examples
  133. * Setting the option:
  134. * @code
  135. * asio::ip::udp::socket socket(io_service);
  136. * ...
  137. * asio::ip::multicast::enable_loopback option(true);
  138. * socket.set_option(option);
  139. * @endcode
  140. *
  141. * @par
  142. * Getting the current option value:
  143. * @code
  144. * asio::ip::udp::socket socket(io_service);
  145. * ...
  146. * asio::ip::multicast::enable_loopback option;
  147. * socket.get_option(option);
  148. * bool is_set = option.value();
  149. * @endcode
  150. *
  151. * @par Concepts:
  152. * GettableSocketOption, SettableSocketOption.
  153. */
  154. #if defined(GENERATING_DOCUMENTATION)
  155. typedef implementation_defined enable_loopback;
  156. #else
  157. typedef asio::ip::detail::socket_option::multicast_enable_loopback<
  158. IPPROTO_IP, IP_MULTICAST_LOOP, IPPROTO_IPV6, IPV6_MULTICAST_LOOP>
  159. enable_loopback;
  160. #endif
  161. } // namespace multicast
  162. } // namespace ip
  163. } // namespace asio
  164. #include "asio/detail/pop_options.hpp"
  165. #endif // ASIO_IP_MULTICAST_HPP