auto reconnect after failure

libstratum/EthStratumClient.cpp

@@ -38,10 +38,22 @@ void EthStratumClient::connect()
 	
 }
 
+void EthStratumClient::reconnect()
+{
+	m_socket.close();
+	m_io_service.reset();
+	m_authorized = false;
+	cnote << "Reconnecting in 3 seconds...";
+	boost::asio::deadline_timer     timer(m_io_service, boost::posix_time::seconds(3));
+	timer.wait();
+	connect();
+}
+
 void EthStratumClient::disconnect()
 {
 	cnote << "Disconnecting";
 	m_running = false;
+	
 	m_socket.close();
 	m_io_service.stop();
 }
@@ -78,7 +90,7 @@ void EthStratumClient::connect_handler(const boost::system::error_code& ec, tcp:
 	else
 	{
 		cwarn << "Could not connect to stratum server " << m_host << ":" << m_port << ", " << ec.message();
-		disconnect();
+		reconnect();
 	}
 
 }
@@ -114,6 +126,8 @@ void EthStratumClient::readResponse(const boost::system::error_code& ec, std::si
 		std::string response;
 		getline(is, response);
 
+		if (response.front() == '{' && response.back() == '}') 
+		{
 			Json::Value responseObject;
 			Json::Reader reader;
 			if (reader.parse(response.c_str(), responseObject))
@@ -128,16 +142,20 @@ void EthStratumClient::readResponse(const boost::system::error_code& ec, std::si
 		}
 		else
 		{
-		cwarn << "Read response failed: " << ec.message();
+			cwarn << "Discarding incomplete response";
 		}
-
 		readline();
-
+	}
+	else
+	{
+		cwarn << "Read response failed: " << ec.message();
+		reconnect();
+	}
 }
 
 void EthStratumClient::processReponse(Json::Value& responseObject)
 {
-	Json::Value error = responseObject.get("error", NULL);
+	Json::Value error = responseObject.get("error", new Json::Value);
 	if (error.isArray())
 	{
 		string msg = error.get(1, "Unknown error").asString();
@@ -225,6 +243,7 @@ void EthStratumClient::processReponse(Json::Value& responseObject)
 		}
 		break;
 	}
+
 }
 
 bool EthStratumClient::submit(EthashProofOfWork::Solution solution) {

libstratum/EthStratumClient.h

@@ -28,6 +28,7 @@ public:
 	bool submit(EthashProofOfWork::Solution solution);
 private:
 	void connect();
+	void reconnect();
 	void disconnect();
 	void resolve_handler(const boost::system::error_code& ec, tcp::resolver::iterator i);
 	void connect_handler(const boost::system::error_code& ec, tcp::resolver::iterator i);