Started working on multithreaded rooms

server/client.hpp

@@ -0,0 +1,38 @@
+/* Copyright: (c) Kayne Ruse 2013
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#ifndef CLIENT_HPP_
+#define CLIENT_HPP_
+
+#include "SDL/SDL_net.h"
+
+#include <map>
+
+/* Hold the client info.
+*/
+
+struct Client {
+	IPaddress address;
+};
+
+typedef std::map<int, Client> ClientMap;
+
+#endif

server/player.hpp

@@ -0,0 +1,39 @@
+/* Copyright: (c) Kayne Ruse 2013
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#ifndef PLAYER_HPP_
+#define PLAYER_HPP_
+
+#include <string>
+#include <map>
+
+/* Hold the player info.
+*/
+
+struct Player {
+	int clientIndex;
+	std::string handle;
+	std::string avatar;
+};
+
+typedef std::map<int, Player> PlayerMap;
+
+#endif

server/server_application.cpp

@@ -32,13 +32,6 @@
 
 using namespace std;
 
-//-------------------------
-//Declarations
-//-------------------------
-
-int Client::counter = 0;
-int Player::counter = 0;
-
 //-------------------------
 //Define the ServerApplication
 //-------------------------
@@ -54,6 +47,12 @@ ServerApplication::~ServerApplication() {
 void ServerApplication::Init(int argc, char** argv) {
 	//TODO: proper command line option parsing
 
+	//Check prerequisites
+	if (!sqlite3_threadsafe()) {
+		throw(runtime_error("Cannot run without thread safety"));
+	}
+	cout << "Thread safety confirmed" << endl;
+
 	//load config
 	config.Load("rsc\\config.cfg");
 
@@ -180,15 +179,15 @@ void ServerApplication::HandleJoinRequest(NetworkPacket packet) {
 	newClient.address = packet.meta.srcAddress;
 
 	//push the new client
-	clientMap[Client::counter] = newClient;
+	clientMap[clientCounter] = newClient;
 
 	//send the client their info
 	packet.meta.type = NetworkPacket::Type::JOIN_RESPONSE;
-	packet.clientInfo.index = Client::counter;
+	packet.clientInfo.index = clientCounter;
 	network.Send(&newClient.address, &packet, sizeof(NetworkPacket));
 
 	//finished this routine
-	Client::counter++;
+	clientCounter++;
 	cout << "connect, total: " << clientMap.size() << endl;
 }
 
@@ -227,8 +226,8 @@ void ServerApplication::HandleSynchronize(NetworkPacket packet) {
 		newPacket.playerInfo.playerIndex = it.first;
 		snprintf(newPacket.playerInfo.handle, PACKET_STRING_SIZE, "%s", it.second.handle.c_str());
 		snprintf(newPacket.playerInfo.avatar, PACKET_STRING_SIZE, "%s", it.second.avatar.c_str());
-		newPacket.playerInfo.position = it.second.position;
-		newPacket.playerInfo.motion = it.second.motion;
+		newPacket.playerInfo.position = {0,0};
+		newPacket.playerInfo.motion = {0,0};
 		network.Send(&clientMap[packet.clientInfo.index].address, &newPacket, sizeof(NetworkPacket));
 	}
 }
@@ -250,22 +249,20 @@ void ServerApplication::HandlePlayerNew(NetworkPacket packet) {
 	newPlayer.clientIndex = packet.playerInfo.clientIndex;
 	newPlayer.handle = packet.playerInfo.handle;
 	newPlayer.avatar = packet.playerInfo.avatar;
-	newPlayer.position = {(rand() % config.Int("screen.w")),(rand() % config.Int("screen.h"))};
-	newPlayer.motion = {0,0};
 
 	//push this player
-	playerMap[Player::counter] = newPlayer;
+	playerMap[playerCounter] = newPlayer;
 
 	//send the client their info
-	packet.playerInfo.playerIndex = Player::counter;
-	packet.playerInfo.position = newPlayer.position;
-	packet.playerInfo.motion = newPlayer.motion;
+	packet.playerInfo.playerIndex = playerCounter;
+	packet.playerInfo.position = {0,0};
+	packet.playerInfo.motion = {0,0};
 
 	//actually send to everyone
 	PumpPacket(packet);
 
 	//finish this routine
-	Player::counter++;
+	playerCounter++;
 }
 
 void ServerApplication::HandlePlayerDelete(NetworkPacket packet) {
@@ -297,8 +294,8 @@ void ServerApplication::HandlePlayerUpdate(NetworkPacket packet) {
 	}
 
 	//server is the slave to the clients, but only for now
-	playerMap[packet.playerInfo.playerIndex].position = packet.playerInfo.position;
-	playerMap[packet.playerInfo.playerIndex].motion = packet.playerInfo.motion;
+//	playerMap[packet.playerInfo.playerIndex].position = packet.playerInfo.position;
+//	playerMap[packet.playerInfo.playerIndex].motion = packet.playerInfo.motion;
 
 	PumpPacket(packet);
 }

server/server_application.hpp

@@ -34,26 +34,15 @@
 #include "config_utility.hpp"
 #include "vector2.hpp"
 
+#include "client.hpp"
+#include "player.hpp"
+
+#include "world_room.hpp"
+
 //STL
 #include <map>
 #include <string>
 
-//hold the client info
-struct Client {
-	static int counter;
-	IPaddress address;
-};
-
-//hold the player info
-struct Player {
-	static int counter;
-	int clientIndex;
-	std::string handle;
-	std::string avatar;
-	Vector2 position;
-	Vector2 motion;
-};
-
 //The main application class
 class ServerApplication {
 public:
@@ -90,8 +79,14 @@ private:
 	bool running = true;
 	ConfigUtility config;
 
-	std::map<int, Client> clientMap;
-	std::map<int, Player> playerMap;
+	//global lists
+	ClientMap clientMap;
+	PlayerMap playerMap;
+	WorldRoomMap worldRoomMap;
+
+	int clientCounter = 0;
+	int playerCounter = 0;
+	int worldRoomCounter = 0;
 };
 
 #endif

server/thread_safe_queue.hpp

@@ -0,0 +1,92 @@
+/* Copyright: (c) Kayne Ruse 2013
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#ifndef THREADSAFEQUEUE_HPP_
+#define THREADSAFEQUEUE_HPP_
+
+#include "SDL/SDL_thread.h"
+
+#include <deque>
+#include <stdexcept>
+
+/* This container is a thread safe reimplementation of std::queue.
+*/
+
+template<typename T, class Container = std::deque<T>>
+class ThreadSafeQueue {
+public:
+	ThreadSafeQueue() {
+		lock = SDL_CreateSemaphore(1);
+		if (!lock) {
+			throw(std::runtime_error("Failed to create ThreadSafeQueue::lock"));
+		}
+	}
+
+	~ThreadSafeQueue() {
+		SDL_SemWait(lock);
+		container.clear();
+		SDL_SemPost(lock);
+		SDL_DestroySemaphore(lock);
+	}
+
+	T PushBack(T t) {
+		SDL_SemWait(lock);
+		container.push_back(t);
+		SDL_SemPost(lock);
+		return t;
+	}
+
+	T PeekFront() {
+		T t;
+		SDL_SemWait(lock);
+		if (container.size() > 0) {
+			t = container[0];
+		}
+		SDL_SemPost(lock);
+		return t;
+	}
+
+	T PopFront() {
+		T t;
+		SDL_SemWait(lock);
+		if (container.size() > 0) {
+			t = container[0];
+			container.pop_front();
+		}
+		SDL_SemPost(lock);
+		return t;
+	}
+
+	int Size() {
+		//can't be sure if std::deque::size() is thread safe
+		int ret;
+		SDL_SemWait(lock);
+		ret = container.size();
+		SDL_SemPost(lock);
+		return ret;
+	}
+
+private:
+	Container container;
+	SDL_sem* lock;
+};
+
+#endif

server/world_room.cpp

@@ -0,0 +1,91 @@
+/* Copyright: (c) Kayne Ruse 2013
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#include "world_room.hpp"
+
+#include <iostream>
+#include <stdexcept>
+
+using namespace std;
+
+int worldRoomThread(void* arg) {
+	WorldRoom* room = reinterpret_cast<WorldRoom*>(arg);
+	try {
+		room->Init();
+		room->Loop();
+		room->Quit();
+	}
+	catch(exception& e) {
+		cerr << "Fatal room error: " << e.what() << endl;
+		return 1;
+	}
+	return 0;
+}
+
+WorldRoom::WorldRoom(PlayerMap const& arg1):
+	playerMap(arg1)
+{
+	//
+}
+
+WorldRoom::~WorldRoom() {
+	//
+}
+
+void WorldRoom::OpenRoom() {
+	if (running) {
+		throw(std::runtime_error("Cannot open a room that is already running"));
+	}
+
+	running = true;
+	thread = SDL_CreateThread(worldRoomThread, this);
+}
+
+void WorldRoom::CloseRoom() {
+	running = false;
+	SDL_WaitThread(thread, nullptr);
+}
+
+void WorldRoom::KillRoom() {
+	running = false;
+	SDL_KillThread(thread);
+}
+
+void WorldRoom::Init() {
+	//
+}
+
+void WorldRoom::Loop() {
+	while(running) {
+		while(networkInQueue.Size() > 0) {
+			HandlePacket(networkInQueue.PopFront());
+		}
+		SDL_Delay(10);
+	}
+}
+
+void WorldRoom::Quit() {
+	//
+}
+
+void WorldRoom::HandlePacket(NetworkPacket packet) {
+	cout << "packet received" << endl;
+}

server/world_room.hpp

@@ -0,0 +1,65 @@
+/* Copyright: (c) Kayne Ruse 2013
+ * 
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ * 
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ * 
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+*/
+#ifndef WORLDROOM_HPP_
+#define WORLDROOM_HPP_
+
+#include "network_packet.hpp"
+#include "thread_safe_queue.hpp"
+#include "player.hpp"
+
+#include "SDL/SDL_thread.h"
+
+#include <map>
+
+class WorldRoom {
+public:
+	WorldRoom(PlayerMap const&);
+	~WorldRoom();
+
+	void OpenRoom();
+	void CloseRoom();
+	void KillRoom();
+
+	ThreadSafeQueue<NetworkPacket>* GetInQueue() { return &networkInQueue; };
+	ThreadSafeQueue<NetworkPacket>* GetOutQueue() { return &networkOutQueue; };
+private:
+
+	friend int worldRoomThread(void* arg);
+
+	void Init();
+	void Loop();
+	void Quit();
+
+	void HandlePacket(NetworkPacket);
+
+	SDL_Thread* thread = nullptr;
+	bool running = false;
+
+	ThreadSafeQueue<NetworkPacket> networkInQueue;
+	ThreadSafeQueue<NetworkPacket> networkOutQueue;
+
+	PlayerMap playerMap;
+};
+
+typedef std::map<int, WorldRoom> WorldRoomMap;
+
+#endif