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-rw-r--r--3rdparty/asio/src/examples/cpp03/echo/async_tcp_echo_server.cpp137
1 files changed, 137 insertions, 0 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/echo/async_tcp_echo_server.cpp b/3rdparty/asio/src/examples/cpp03/echo/async_tcp_echo_server.cpp
new file mode 100644
index 00000000000..c26136e89b5
--- /dev/null
+++ b/3rdparty/asio/src/examples/cpp03/echo/async_tcp_echo_server.cpp
@@ -0,0 +1,137 @@
+//
+// async_tcp_echo_server.cpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <cstdlib>
+#include <iostream>
+#include <boost/bind.hpp>
+#include "asio.hpp"
+
+using asio::ip::tcp;
+
+class session
+{
+public:
+ session(asio::io_context& io_context)
+ : socket_(io_context)
+ {
+ }
+
+ tcp::socket& socket()
+ {
+ return socket_;
+ }
+
+ void start()
+ {
+ socket_.async_read_some(asio::buffer(data_, max_length),
+ boost::bind(&session::handle_read, this,
+ asio::placeholders::error,
+ asio::placeholders::bytes_transferred));
+ }
+
+private:
+ void handle_read(const asio::error_code& error,
+ size_t bytes_transferred)
+ {
+ if (!error)
+ {
+ asio::async_write(socket_,
+ asio::buffer(data_, bytes_transferred),
+ boost::bind(&session::handle_write, this,
+ asio::placeholders::error));
+ }
+ else
+ {
+ delete this;
+ }
+ }
+
+ void handle_write(const asio::error_code& error)
+ {
+ if (!error)
+ {
+ socket_.async_read_some(asio::buffer(data_, max_length),
+ boost::bind(&session::handle_read, this,
+ asio::placeholders::error,
+ asio::placeholders::bytes_transferred));
+ }
+ else
+ {
+ delete this;
+ }
+ }
+
+ tcp::socket socket_;
+ enum { max_length = 1024 };
+ char data_[max_length];
+};
+
+class server
+{
+public:
+ server(asio::io_context& io_context, short port)
+ : io_context_(io_context),
+ acceptor_(io_context, tcp::endpoint(tcp::v4(), port))
+ {
+ start_accept();
+ }
+
+private:
+ void start_accept()
+ {
+ session* new_session = new session(io_context_);
+ acceptor_.async_accept(new_session->socket(),
+ boost::bind(&server::handle_accept, this, new_session,
+ asio::placeholders::error));
+ }
+
+ void handle_accept(session* new_session,
+ const asio::error_code& error)
+ {
+ if (!error)
+ {
+ new_session->start();
+ }
+ else
+ {
+ delete new_session;
+ }
+
+ start_accept();
+ }
+
+ asio::io_context& io_context_;
+ tcp::acceptor acceptor_;
+};
+
+int main(int argc, char* argv[])
+{
+ try
+ {
+ if (argc != 2)
+ {
+ std::cerr << "Usage: async_tcp_echo_server <port>\n";
+ return 1;
+ }
+
+ asio::io_context io_context;
+
+ using namespace std; // For atoi.
+ server s(io_context, atoi(argv[1]));
+
+ io_context.run();
+ }
+ catch (std::exception& e)
+ {
+ std::cerr << "Exception: " << e.what() << "\n";
+ }
+
+ return 0;
+}