Changed channel to a class.

I believe this interface is better to work with. Later I'll add the
"send message" interfaces to the channel class.

include/neocomm/channel.hpp

@@ -26,12 +26,26 @@
 
 namespace neocomm {
 
-/**
- * @brief Object to contain channel information.
- */
-struct channel {
-	dht::InfoHash key;  //!< The sha1 hash of the channel name.
-	std::future<size_t> token;  //!< Token used to leave channel.
-	std::list<struct message> messages;  //!< Messages received by channel.
+class channel {
+public:
+	channel(const std::string &name, dht::DhtRunner *network);
+	~channel();
+
+	inline std::string get_name() const {
+		return name;
+	}
+	//inline dht::InfoHash get_key() const {
+		//return key;
+	//}
+	//inline size_t get_token() {
+		//return token.get();
+	//}
+
+private:
+	const std::string name;
+	const dht::InfoHash key;
+	dht::DhtRunner *network;
+	std::future<size_t> token;
+	std::list<struct message> messages;
 };
 }

include/neocomm/node.hpp

@@ -21,7 +21,7 @@
 #include "neocomm/channel.hpp"
 
 #include <opendht.h>
-#include <map>
+#include <vector>
 
 namespace neocomm {
 
@@ -64,18 +64,12 @@ public:
 	 */
 	void export_nodes(const std::string &file_path); // TODO
 
-	/**
-	 * @brief Join a channel.
-	 *
-	 * @param name The name of the channel to join.
-	 */
-	void join_channel(const std::string &name);
-	/**
-	 * @brief Leave an already joined channel.
-	 *
-	 * @param name Name of the channel.
-	 */
+	channel *join_channel(const std::string &name);
+	channel *get_channel(const std::string &name);
 	void leave_channel(const std::string &name);
+	inline void leave_channel(channel *chan) {
+		leave_channel(chan->get_name());
+	}
 
 	/**
 	 * @brief Get the current alias for the user.
@@ -95,18 +89,9 @@ public:
 	}
 
 private:
-	inline struct channel *get_channel(
-			const std::string &name) {
-		for(auto &i : channels)
-		{
-			if(i.first == name)
-				return &i.second;
-		}
-		return nullptr;
-	}
 	std::string alias;
 	dht::DhtRunner network;
-	std::map<std::string, struct channel> channels;
+	std::vector<channel*> channels;
 };
 
 }

src/channel.cpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2018 Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
+ * Author: Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "neocomm/channel.hpp"
+
+using namespace neocomm;
+
+channel::channel(const std::string &name,
+		dht::DhtRunner *network) :
+		name(name), key(dht::InfoHash::get(name)),
+		network(network) {
+	token = network->listen<struct message>(key,
+			[&](struct message &&msg) {
+				messages.push_back(msg);
+				return true;
+			});
+}
+
+channel::~channel() {
+	network->cancelListen(key, token.get());
+}

src/node.cpp

@@ -31,22 +31,33 @@ node::~node() {
 	network.join();
 }
 
-void node::join_channel(const std::string &name) {
+channel *node::join_channel(const std::string &name) {
+	// don't do anything if already joined
 	if(get_channel(name))
-		return;
-	channels[name].key = dht::InfoHash::get(name);
-	channels[name].token = network.listen<struct message>(
-			channels[name].key,
-			[&](struct message &&msg) {
-				channels[name].messages.push_back(msg);
-				return true;
-			});
+		return nullptr;
+
+	channels.push_back(new channel(name, &network));
+	return channels.back();
+}
+
+channel *node::get_channel(const std::string &name) {
+	for(auto i : channels)
+	{
+		if(i->get_name() == name)
+			return i;
+	}
+	return nullptr;
 }
 
 void node::leave_channel(const std::string &name) {
-	if(not get_channel(name))
-		return;
-	network.cancelListen(channels[name].key,
-			channels[name].token.get());
-	channels.erase(name);
+	for(auto i = channels.begin();
+			i not_eq channels.end(); ++i)
+	{
+		if((*i)->get_name() == name)
+		{
+			delete *i;
+			channels.erase(i);
+			return;
+		}
+	}
 }