echo_client.cpp
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/*
* Copyright (c) 2016, Peter Thorson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the WebSocket++ Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <websocketpp/config/asio_no_tls_client.hpp>
#include <websocketpp/client.hpp>
#include <iostream>
typedef websocketpp::client<websocketpp::config::asio_client> client;
using websocketpp::lib::placeholders::_1;
using websocketpp::lib::placeholders::_2;
using websocketpp::lib::bind;
// pull out the type of messages sent by our config
typedef websocketpp::config::asio_client::message_type::ptr message_ptr;
// This message handler will be invoked once for each incoming message. It
// prints the message and then sends a copy of the message back to the server.
void on_message(client* c, websocketpp::connection_hdl hdl, message_ptr msg) {
std::cout << "on_message called with hdl: " << hdl.lock().get()
<< " and message: " << msg->get_payload()
<< std::endl;
websocketpp::lib::error_code ec;
c->send(hdl, msg->get_payload(), msg->get_opcode(), ec);
if (ec) {
std::cout << "Echo failed because: " << ec.message() << std::endl;
}
}
int main(int argc, char* argv[]) {
// Create a client endpoint
client c;
std::string uri = "ws://localhost:9002";
if (argc == 2) {
uri = argv[1];
}
try {
// Set logging to be pretty verbose (everything except message payloads)
c.set_access_channels(websocketpp::log::alevel::all);
c.clear_access_channels(websocketpp::log::alevel::frame_payload);
// Initialize ASIO
c.init_asio();
// Register our message handler
c.set_message_handler(bind(&on_message,&c,::_1,::_2));
websocketpp::lib::error_code ec;
client::connection_ptr con = c.get_connection(uri, ec);
if (ec) {
std::cout << "could not create connection because: " << ec.message() << std::endl;
return 0;
}
// Note that connect here only requests a connection. No network messages are
// exchanged until the event loop starts running in the next line.
c.connect(con);
// Start the ASIO io_service run loop
// this will cause a single connection to be made to the server. c.run()
// will exit when this connection is closed.
c.run();
} catch (websocketpp::exception const & e) {
std::cout << e.what() << std::endl;
}
}