Remove catching websocketpp::lib::error_code in examples, fixes #584

A few versions ago the library was standardized to only throw
websocketpp::exception. Not all example code was updated.

examples/debug_client/debug_client.cpp

@@ -157,10 +157,10 @@ int main(int argc, char* argv[]) {
     try {
         perftest endpoint;
         endpoint.start(uri);
-    } catch (const std::exception & e) {
+    } catch (websocketpp::exception const & e) {
+        std::cout << e.what() << std::endl;
+    } catch (std::exception const & 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;
     }

examples/debug_server/debug_server.cpp

@@ -128,9 +128,9 @@ void on_message(server* s, websocketpp::connection_hdl hdl, message_ptr msg) {
 
     try {
         s->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;
+    } catch (websocketpp::exception const & e) {
+        std::cout << "Echo failed because: " 
+                  << "(" << e.what() << ")" << std::endl;
     }
 }
 
@@ -164,10 +164,10 @@ int main() {
 
         // Start the ASIO io_service run loop
         echo_server.run();
+    } catch (websocketpp::exception const & e) {
+        std::cout << e.what() << std::endl;
     } 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;
     }

examples/echo_server/echo_server.cpp

@@ -28,9 +28,9 @@ void on_message(server* s, websocketpp::connection_hdl hdl, message_ptr msg) {
 
     try {
         s->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;
+    } catch (websocketpp::exception const & e) {
+        std::cout << "Echo failed because: "
+                  << "(" << e.what() << ")" << std::endl;
     }
 }
 

examples/echo_server_both/echo_server_both.cpp

@@ -28,9 +28,9 @@ void on_message(EndpointType* s, websocketpp::connection_hdl hdl,
 
     try {
         s->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;
+    } catch (websocketpp::exception const & e) {
+        std::cout << "Echo failed because: "
+                  << "(" << e.what() << ")" << std::endl;
     }
 }
 

examples/echo_server_tls/echo_server_tls.cpp

@@ -57,9 +57,9 @@ void on_message(server* s, websocketpp::connection_hdl hdl, message_ptr msg) {
 
     try {
         s->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;
+    } catch (websocketpp::exception const & e) {
+        std::cout << "Echo failed because: "
+                  << "(" << e.what() << ")" << std::endl;
     }
 }
 

examples/external_io_service/external_io_service.cpp

@@ -52,9 +52,9 @@ void on_message(ws_echo_server* s, websocketpp::connection_hdl hdl, ws_echo_serv
 
     try {
         s->send(hdl, msg->get_payload(), msg->get_opcode());
-    } catch (websocketpp::lib::error_code const & e) {
-        std::cout << "Echo failed because: " << e
-                  << "(" << e.message() << ")" << std::endl;
+    } catch (websocketpp::exception const & e) {
+        std::cout << "Echo failed because: "
+                  << "(" << e.what() << ")" << std::endl;
     }
 }
 

examples/iostream_server/iostream_server.cpp

@@ -26,9 +26,9 @@ void on_message(server* s, websocketpp::connection_hdl hdl, message_ptr msg) {
 
     try {
         s->send(hdl, msg->get_payload(), msg->get_opcode());
-    } catch (const websocketpp::lib::error_code& e) {
+    } catch (websocketpp::exception const & e) {
         s->get_alog().write(websocketpp::log::alevel::app,
-                    "Echo Failed: "+e.message());
+                    std::string("Echo Failed: ")+e.what());
     }
 }
 

examples/scratch_server/scratch_server.cpp

@@ -60,9 +60,9 @@ void on_message(server* s, websocketpp::connection_hdl hdl, message_ptr msg) {
     */
     try {
         s->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;
+    } catch (websocketpp::exception const & e) {
+        std::cout << "Echo failed because: " 
+                  << "(" << e.what() << ")" << std::endl;
     }
 }
 
@@ -96,10 +96,10 @@ int main(int argc, char * argv[]) {
 	    
 	    // Start the ASIO io_service run loop
         echo_server.run();
+    } catch (websocketpp::exception const & e) {
+        std::cout << e.what() << std::endl;
     } 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;
     }