From d1b97b2ad19d18377f712b4ed14c8a47db375f62 Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@sakuya.local>
Date: Sat, 6 Nov 2010 05:19:23 +0100
Subject: Added Message-class, interfaced ConnectionBase to Message.

---
 common/connectionbase.cpp | 35 +++++++++++++++++++++++++++++++++--
 common/connectionbase.h   | 15 ++++++++++-----
 common/message.cpp        | 26 ++++++++++++++++++++++++++
 common/message.h          | 25 +++++++++++++++++++++++++
 4 files changed, 94 insertions(+), 7 deletions(-)
 create mode 100644 common/message.cpp
 create mode 100644 common/message.h

(limited to 'common')

diff --git a/common/connectionbase.cpp b/common/connectionbase.cpp
index b2147fa..c744646 100644
--- a/common/connectionbase.cpp
+++ b/common/connectionbase.cpp
@@ -3,14 +3,45 @@
 #include <iostream>
 #include <string>
 
+void ConnectionBase::prepare_next_message() {
+	next_message = Message::create();
+	
+	request_data(next_message->deserialize(0, 0));
+}
+
 void ConnectionBase::connected() {
 	std::cout << "Connection established." << std::endl;
 	
 	write_data((uint8_t*)"Hei!\n", 5);
 	
-	request_data(10);
+	prepare_next_message();
 }
 
 void ConnectionBase::got_data(uint8_t* data, std::size_t bytes) {
-	std::cout << "Fikk data: " << std::string((char*)data, bytes) << std::endl;
+	size_t remaining = next_message->deserialize(data, bytes);
+	
+	if(remaining) {
+		request_data(remaining);
+	} else {
+		recv_queue.push(next_message);
+		
+		prepare_next_message();
+	}
+}
+
+void ConnectionBase::send(const Message::p& msg) {
+	std::pair<uint8_t*, std::size_t> smsg = msg->serialize();
+	
+	write_data(smsg.first, smsg.second);
+}
+
+Message::p ConnectionBase::recv() {
+	if(recv_queue.empty()) {
+		return Message::p();
+	}
+	
+	Message::p msg = recv_queue.front();
+	recv_queue.pop();
+	
+	return msg;
 }
diff --git a/common/connectionbase.h b/common/connectionbase.h
index 1bfc437..8bd56e9 100644
--- a/common/connectionbase.h
+++ b/common/connectionbase.h
@@ -3,14 +3,19 @@
 
 #include <stdint.h>
 #include <cstdlib>
+#include <queue>
 
-// Poor excuse for a real Message class.
-class Message {
-	public:
-		typedef Message* p;
-};
+#include "message.h"
 
 class ConnectionBase {
+	private:
+		std::queue<Message::p> recv_queue;
+		
+		Message::p next_message;
+		
+		//! Create a new message and initiate reception.
+		void prepare_next_message();
+		
 	protected:
 		//! Signal that connection is established and ready to transfer data.
 		void connected();
diff --git a/common/message.cpp b/common/message.cpp
new file mode 100644
index 0000000..78731e2
--- /dev/null
+++ b/common/message.cpp
@@ -0,0 +1,26 @@
+#include "message.h"
+
+#include <iostream>
+#include <string>
+
+Message::Message() : deserialize_size(0) {
+	
+}
+
+Message::p Message::create() {
+	return Message::p(new Message);
+}
+
+std::pair<uint8_t*, std::size_t> Message::serialize() {
+	return std::pair<uint8_t*, std::size_t>(0, 0);
+}
+
+std::size_t Message::deserialize(uint8_t* data, std::size_t bytes) {
+	std::cout << "Fikk data (" << bytes << "): " << std::string((char*)data, bytes) << std::endl;
+	
+	if(deserialize_size == 0 && bytes == 0) {
+		return 8;
+	}
+	
+	return 0;
+}
diff --git a/common/message.h b/common/message.h
new file mode 100644
index 0000000..57258c1
--- /dev/null
+++ b/common/message.h
@@ -0,0 +1,25 @@
+#ifndef MESSAGE_H
+#define MESSAGE_H
+
+#include <boost/shared_ptr.hpp>
+
+class Message {
+	private:
+		Message();
+		
+		std::size_t deserialize_size;
+	
+	public:
+		typedef boost::shared_ptr<Message> p;
+		
+		static p create();
+		
+		//! Serialize message.
+		std::pair<uint8_t*, std::size_t> serialize();
+		
+		//! Deserialize message.
+		std::size_t deserialize(uint8_t* data, std::size_t bytes);
+		
+};
+
+#endif
\ No newline at end of file
-- 
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