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85 lines
2.1 KiB
85 lines
2.1 KiB
// 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 server_iostream object from
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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 text it receives, but in upper case. So
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basically it is the same as the sockets_ex.cpp example program except it
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uses iostreams.
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To test it out you can just open a command prompt and type:
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telnet localhost 1234
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Then you can type away.
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*/
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#include <dlib/server.h>
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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_iostream
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{
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void on_connect (
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std::istream& in,
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std::ostream& out,
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const std::string& foreign_ip,
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const std::string& /*local_ip*/,
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unsigned short /*foreign_port*/,
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unsigned short /*local_port*/,
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uint64 /*connection_id*/
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)
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{
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// The details of the connection are contained in the last few arguments to
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// on_connect(). For more information, see the documentation for the
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// server_iostream. However, the main arguments of interest are the two streams.
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// Here we also print the IP address of the remote machine.
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cout << "Got a connection from " << foreign_ip << endl;
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// Loop until we hit the end of the stream. This happens when the connection
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// terminates.
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while (in.peek() != EOF)
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{
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// get the next character from the client
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char ch = in.get();
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// now echo it back to them
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out << (char)toupper(ch);
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}
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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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// Tell the server to begin accepting connections.
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our_server.start_async();
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cout << "Press enter to end this program" << endl;
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cin.get();
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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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}
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