| src/examples/cpp03/local/stream_server.cpp | src/examples/cpp11/local/stream_server.cpp |
| ⋮ | ⋮ |
| 1 | // | 1 | // |
| 2 | //·stream_server.cpp | 2 | //·stream_server.cpp |
| 3 | //·~~~~~~~~~~~~~~~~~ | 3 | //·~~~~~~~~~~~~~~~~~ |
| 4 | // | 4 | // |
| 5 | //·Copyright·(c)·2003-2017·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) | 5 | //·Copyright·(c)·2003-2017·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) |
| 6 | // | 6 | // |
| 7 | //·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying | 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) | 8 | //·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt) |
| 9 | // | 9 | // |
| 10 | | 10 | |
| | 11 | #include·<array> |
| 11 | #include·<cstdio> | 12 | #include·<cstdio> |
| 12 | #include·<iostream> | 13 | #include·<iostream> |
| 13 | #include·<boost/array.hpp> | 14 | #include·<memory> |
| 14 | #include·<boost/bind.hpp> | |
| 15 | #include·<boost/enable_shared_from_this.hpp> | |
| 16 | #include·<boost/shared_ptr.hpp> | |
| 17 | #include·"asio.hpp" | 15 | #include·"asio.hpp" |
| 18 | | 16 | |
| 19 | #if·defined(ASIO_HAS_LOCAL_SOCKETS) | 17 | #if·defined(ASIO_HAS_LOCAL_SOCKETS) |
| 20 | | 18 | |
| 21 | using·asio::local::stream_protocol; | 19 | using·asio::local::stream_protocol; |
| 22 | | 20 | |
| 23 | class·session | 21 | class·session |
| 24 | ··:·public·boost::enable_shared_from_this<session> | 22 | ··:·public·std::enable_shared_from_this<session> |
| 25 | { | 23 | { |
| 26 | public: | 24 | public: |
| 27 | ··session(asio::io_context&·io_context) | 25 | ··session(stream_protocol::socket·sock) |
| 28 | ····:·socket_(io_context) | 26 | ····:·socket_(std::move(sock)) |
| 29 | ··{ | 27 | ··{ |
| 30 | ··} | 28 | ··} |
| 31 | | 29 | |
| 32 | ··stream_protocol::socket&·socket() | |
| 33 | ··{ | |
| 34 | ····return·socket_; | |
| 35 | ··} | |
| 36 | | |
| 37 | ··void·start() | 30 | ··void·start() |
| 38 | ··{ | 31 | ··{ |
| 39 | ····socket_.async_read_some(asio::buffer(data_), | 32 | ····do_read(); |
| 40 | ········boost::bind(&session::handle_read, | |
| 41 | ··········shared_from_this(), | |
| 42 | ··········asio::placeholders::error, | |
| 43 | ··········asio::placeholders::bytes_transferred)); | |
| 44 | ··} | |
| 45 | | |
| 46 | ··void·handle_read(const·asio::error_code&·error, | |
| 47 | ······size_t·bytes_transferred) | |
| 48 | ··{ | |
| 49 | ····if·(!error) | |
| 50 | ····{ | |
| 51 | ······asio::async_write(socket_, | |
| 52 | ··········asio::buffer(data_,·bytes_transferred), | |
| 53 | ··········boost::bind(&session::handle_write, | |
| 54 | ············shared_from_this(), | |
| 55 | ············asio::placeholders::error)); | |
| 56 | ····} | |
| 57 | ··} | 33 | ··} |
| 58 | | 34 | |
| 59 | ··void·handle_write(const·asio::error_code&·error) | 35 | private: |
| | 36 | ··void·do_read() |
| 60 | ··{ | 37 | ··{ |
| 61 | ····if·(!error) | 38 | ····auto·self(shared_from_this()); |
| 62 | ····{ | 39 | ····socket_.async_read_some(asio::buffer(data_), |
| 63 | ······socket_.async_read_some(asio::buffer(data_), | 40 | ········[this,·self](std::error_code·ec,·std::size_t·length) |
| 64 | ··········boost::bind(&session::handle_read, | 41 | ········{ |
| 65 | ············shared_from_this(), | 42 | ··········if·(!ec) |
| 66 | ············asio::placeholders::error, | 43 | ············do_write(length); |
| 67 | ············asio::placeholders::bytes_transferred)); | 44 | ········}); |
| 68 | ····} | 45 | ··} |
| | 46 | |
| | 47 | ··void·do_write(std::size_t·length) |
| | 48 | ··{ |
| | 49 | ····auto·self(shared_from_this()); |
| | 50 | ····asio::async_write(socket_, |
| | 51 | ········asio::buffer(data_,·length), |
| | 52 | ········[this,·self](std::error_code·ec,·std::size_t·/*length*/) |
| | 53 | ········{ |
| | 54 | ··········if·(!ec) |
| | 55 | ············do_read(); |
| | 56 | ········}); |
| 69 | ··} | 57 | ··} |
| 70 | | 58 | |
| 71 | private: | |
| 72 | ··//·The·socket·used·to·communicate·with·the·client. | 59 | ··//·The·socket·used·to·communicate·with·the·client. |
| 73 | ··stream_protocol::socket·socket_; | 60 | ··stream_protocol::socket·socket_; |
| 74 | | 61 | |
| 75 | ··//·Buffer·used·to·store·data·received·from·the·client. | 62 | ··//·Buffer·used·to·store·data·received·from·the·client. |
| 76 | ··boost::array<char,·1024>·data_; | 63 | ··std::array<char,·1024>·data_; |
| 77 | }; | 64 | }; |
| 78 | | 65 | |
| 79 | typedef·boost::shared_ptr<session>·session_ptr; | |
| 80 | | |
| 81 | class·server | 66 | class·server |
| 82 | { | 67 | { |
| 83 | public: | 68 | public: |
| 84 | ··server(asio::io_context&·io_context,·const·std::string&·file) | 69 | ··server(asio::io_context&·io_context,·const·std::string&·file) |
| 85 | ····:·io_context_(io_context), | 70 | ····:·acceptor_(io_context,·stream_protocol::endpoint(file)) |
| 86 | ······acceptor_(io_context,·stream_protocol::endpoint(file)) | |
| 87 | ··{ | 71 | ··{ |
| 88 | ····session_ptr·new_session(new·session(io_context_)); | 72 | ····do_accept(); |
| 89 | ····acceptor_.async_accept(new_session->socket(), | |
| 90 | ········boost::bind(&server::handle_accept,·this,·new_session, | |
| 91 | ··········asio::placeholders::error)); | |
| 92 | ··} | 73 | ··} |
| 93 | | 74 | |
| 94 | ··void·handle_accept(session_ptr·new_session, | 75 | private: |
| 95 | ······const·asio::error_code&·error) | 76 | ··void·do_accept() |
| 96 | ··{ | 77 | ··{ |
| 97 | ····if·(!error) | 78 | ····acceptor_.async_accept( |
| 98 | ····{ | 79 | ········[this](std::error_code·ec,·stream_protocol::socket·socket) |
| 99 | ······new_session->start(); | 80 | ········{ |
| 100 | ····} | 81 | ··········if·(!ec) |
| | 82 | ··········{ |
| | 83 | ············std::make_shared<session>(std::move(socket))->start(); |
| | 84 | ··········} |
| 101 | | 85 | |
| 102 | ····new_session.reset(new·session(io_context_)); | 86 | ··········do_accept(); |
| 103 | ····acceptor_.async_accept(new_session->socket(), | 87 | ········}); |
| 104 | ········boost::bind(&server::handle_accept,·this,·new_session, | |
| 105 | ··········asio::placeholders::error)); | |
| 106 | ··} | 88 | ··} |
| 107 | | 89 | |
| 108 | private: | |
| 109 | ··asio::io_context&·io_context_; | |
| 110 | ··stream_protocol::acceptor·acceptor_; | 90 | ··stream_protocol::acceptor·acceptor_; |
| 111 | }; | 91 | }; |
| 112 | | 92 | |
| 113 | int·main(int·argc,·char*·argv[]) | 93 | int·main(int·argc,·char*·argv[]) |
| 114 | { | 94 | { |
| 115 | ··try | 95 | ··try |
| 116 | ··{ | 96 | ··{ |
| 117 | ····if·(argc·!=·2) | 97 | ····if·(argc·!=·2) |
| 118 | ····{ | 98 | ····{ |
| 119 | ······std::cerr·<<·"Usage:·stream_server·<file>\n"; | 99 | ······std::cerr·<<·"Usage:·stream_server·<file>\n"; |
| 120 | ······std::cerr·<<·"***·WARNING:·existing·file·is·removed·***\n"; | 100 | ······std::cerr·<<·"***·WARNING:·existing·file·is·removed·***\n"; |
| 121 | ······return·1; | 101 | ······return·1; |
| 122 | ····} | 102 | ····} |
| 123 | | 103 | |
| 124 | ····asio::io_context·io_context; | 104 | ····asio::io_context·io_context; |
| 125 | | 105 | |
| 126 | ····std::remove(argv[1]); | 106 | ····std::remove(argv[1]); |
| 127 | ····server·s(io_context,·argv[1]); | 107 | ····server·s(io_context,·argv[1]); |
| 128 | | 108 | |
| 129 | ····io_context.run(); | 109 | ····io_context.run(); |
| 130 | ··} | 110 | ··} |
| 131 | ··catch·(std::exception&·e) | 111 | ··catch·(std::exception&·e) |
| 132 | ··{ | 112 | ··{ |
| 133 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; | 113 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; |
| 134 | ··} | 114 | ··} |
| 135 | | 115 | |
| 136 | ··return·0; | 116 | ··return·0; |
| 137 | } | 117 | } |
| 138 | | 118 | |
| 139 | #else·//·defined(ASIO_HAS_LOCAL_SOCKETS) | 119 | #else·//·defined(ASIO_HAS_LOCAL_SOCKETS) |
| 140 | #·error·Local·sockets·not·available·on·this·platform. | 120 | #·error·Local·sockets·not·available·on·this·platform. |
| 141 | #endif·//·defined(ASIO_HAS_LOCAL_SOCKETS) | 121 | #endif·//·defined(ASIO_HAS_LOCAL_SOCKETS) |