Adds echo_client example

examples/echo_client/echo_client.cpp

@@ -0,0 +1,70 @@
+#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;
+
+
+// Define a callback to handle incoming messages
+void on_open(client* c, websocketpp::connection_hdl hdl) {
+    std::cout << "on_open called for " << hdl.lock().get() << std::endl;
+    try {
+        c->send(hdl, "Foo", websocketpp::frame::opcode::text);
+    } catch (const websocketpp::lib::error_code& e) {
+        std::cout << "Send failed because: " << e  
+                  << "(" << e.message() << ")" << std::endl;
+    }
+}
+
+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;
+
+    /*try {
+        c->send(hdl, msg->get_payload(), msg->get_opcode());
+    } catch (const websocketpp::lib::error_code& e) {
+        std::cout << "Echo failed because: " << e  
+                  << "(" << e.message() << ")" << std::endl;
+    }*/
+}
+
+int main() {
+	// Create a server endpoint
+    client echo_client;
+	
+	try {
+        // Set logging settings
+        echo_client.set_access_channels(websocketpp::log::alevel::all);
+        echo_client.clear_access_channels(websocketpp::log::alevel::frame_payload);
+        
+        // Initialize ASIO
+        echo_client.init_asio();
+        
+        // Register our handlers
+        echo_client.set_message_handler(bind(&on_message,&echo_client,::_1,::_2));
+        echo_client.set_open_handler(bind(&on_open,&echo_client,::_1));
+        
+        websocketpp::lib::error_code ec;
+        client::connection_ptr con = echo_client.get_connection("ws://localhost:9002/", ec);
+        echo_client.connect(con);
+	    
+	    // Start the ASIO io_service run loop
+        echo_client.run();
+    } catch (const std::exception & e) {
+        std::cout << e.what() << std::endl;
+    } catch (websocketpp::lib::error_code e) {
+        std::cout << e.message() << std::endl;
+    } catch (...) {
+        std::cout << "other exception" << std::endl;
+    }
+}