| 1 | #include <iostream>
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| 2 | #include <boost\asio.hpp>
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| 3 | #include <boost\shared_ptr.hpp>
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| 4 | #include <boost\bind.hpp>
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| 5 |
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| 6 | using boost::asio::ip::tcp;
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| 7 |
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| 8 | class tcp_client
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| 9 | {
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| 10 | public:
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| 11 | tcp_client(boost::asio::io_service& io_service, tcp::endpoint& endpoint, long long timeout = 3000000)
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| 12 | :m_io_service(io_service),
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| 13 | m_endpoint(endpoint),
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| 14 | m_timer(io_service),
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| 15 | m_timeout(timeout)
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| 16 | {
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| 17 | connect();
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| 18 | }
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| 19 |
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| 20 | void stop()
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| 21 | {
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| 22 | m_socket->close();
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| 23 | }
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| 24 |
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| 25 | private:
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| 26 |
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| 27 | void connect()
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| 28 | {
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| 29 | m_socket.reset(new tcp::socket(m_io_service));
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| 30 |
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| 31 | std::cout << "TCP Connection in progress" << std::endl;
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| 32 | m_socket->async_connect(m_endpoint,
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| 33 | boost::bind(&tcp_client::handle_connect, this,
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| 34 | m_socket,
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| 35 | boost::asio::placeholders::error)
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| 36 | );
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| 37 |
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| 38 | m_timer.expires_from_now(boost::posix_time::microseconds(m_timeout));
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| 39 | m_timer.async_wait(boost::bind(&tcp_client::HandleWait, this, boost::asio::placeholders::error));
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| 40 | }
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| 41 |
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| 42 | void handle_connect(boost::shared_ptr<tcp::socket> socket, const boost::system::error_code& error)
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| 43 | {
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| 44 | if (!error)
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| 45 | {
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| 46 | std::cout << "TCP Connection : connected !" << std::endl;
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| 47 | m_timer.expires_at(boost::posix_time::pos_infin); // Stop the timer !
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| 48 | // Read normally
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| 49 | }
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| 50 | else
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| 51 | {
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| 52 | std::cout << "TCP Connection failed" << std::endl;
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| 53 | }
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| 54 | }
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| 55 |
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| 56 |
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| 57 | public:
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| 58 | void HandleWait(const boost::system::error_code& error)
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| 59 | {
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| 60 | if (!error)
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| 61 | {
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| 62 | std::cout << "Connection not established..." << std::endl;
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| 63 | std::cout << "Trying to close socket..." << std::endl;
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| 64 | stop();
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| 65 | return;
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| 66 | }
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| 67 | }
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| 68 |
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| 69 | boost::asio::io_service& m_io_service;
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| 70 | boost::shared_ptr<tcp::socket> m_socket;
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| 71 | tcp::endpoint m_endpoint;
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| 72 | boost::asio::deadline_timer m_timer;
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| 73 | long long m_timeout;
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| 74 | };
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| 75 |
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| 76 | int main()
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| 77 | {
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| 78 | boost::asio::io_service io_service;
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| 79 | tcp::endpoint endpoint(boost::asio::ip::address_v4::from_string("192.168.10.74"), 7171); // invalid address
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| 80 | tcp_client tcpc(io_service, endpoint);
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| 81 |
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| 82 | io_service.run();
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| 83 |
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| 84 | system("pause");
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| 85 | }
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