mirror of https://github.com/davisking/dlib.git
94 lines
2.0 KiB
C++
94 lines
2.0 KiB
C++
// The contents of this file are in the public domain. See LICENSE_FOR_EXAMPLE_PROGRAMS.txt
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/*
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This is an example illustrating the use of the sockets and
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server components from the dlib C++ Library.
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This is a simple echo server. It listens on port 1234 for incoming
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connections and just echos back any data it receives.
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*/
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#include "dlib/sockets.h"
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#include "dlib/server.h"
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#include "dlib/ref.h" // for ref()
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#include <iostream>
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using namespace dlib;
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using namespace std;
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class serv : public server::kernel_1a_c
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{
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void on_connect (
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connection& con
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)
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{
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char ch;
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while (con.read(&ch,1) > 0)
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{
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// we are just reading one char at a time and writing it back
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// to the connection. If there is some problem writing the char
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// then we quit the loop.
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if (con.write(&ch,1) != 1)
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break;
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}
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}
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};
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void thread(serv& our_server)
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{
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try
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{
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// Start the server. start() blocks until the server is shutdown
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// by a call to clear()
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our_server.start();
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}
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catch (socket_error& e)
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{
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cout << "Socket error while starting server: " << e.what() << endl;
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}
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catch (exception& e)
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{
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cout << "Error while starting server: " << e.what() << endl;
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}
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}
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int main()
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{
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try
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{
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serv our_server;
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// set up the server object we have made
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our_server.set_listening_port(1234);
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our_server.set_max_connections(1000);
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// create a thread that will start the server. The ref() here allows us to pass
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// our_server into the threaded function by reference.
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thread_function t(thread, dlib::ref(our_server));
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cout << "Press enter to end this program" << endl;
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cin.get();
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// this will cause the server to shut down
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our_server.clear();
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}
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catch (exception& e)
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{
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cout << e.what() << endl;
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}
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catch (...)
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{
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cout << "Some error occurred" << endl;
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}
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}
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