Client: move message functions into the class

Makefile.am

@@ -141,7 +141,7 @@ src_mpd_SOURCES = \
 	src/ClientRead.cxx \
 	src/ClientWrite.cxx \
 	src/ClientMessage.cxx src/ClientMessage.hxx \
-	src/ClientSubscribe.cxx src/ClientSubscribe.hxx \
+	src/ClientSubscribe.cxx \
 	src/ClientFile.cxx src/ClientFile.hxx \
 	src/Listen.cxx src/Listen.hxx \
 	src/LogInit.cxx src/LogInit.hxx \

src/Client.hxx

@@ -86,11 +86,6 @@ public:
 		return FullyBufferedSocket::IsDefined();
 	}
 
-	gcc_pure
-	bool IsSubscribed(const char *channel_name) const {
-		return subscriptions.find(channel_name) != subscriptions.end();
-	}
-
 	gcc_pure
 	bool IsExpired() const {
 		return !FullyBufferedSocket::IsDefined();
@@ -132,6 +127,30 @@ public:
 	void IdleAdd(unsigned flags);
 	bool IdleWait(unsigned flags);
 
+	enum class SubscribeResult {
+		/** success */
+		OK,
+
+		/** invalid channel name */
+		INVALID,
+
+		/** already subscribed to this channel */
+		ALREADY,
+
+		/** too many subscriptions */
+		FULL,
+	};
+
+	gcc_pure
+	bool IsSubscribed(const char *channel_name) const {
+		return subscriptions.find(channel_name) != subscriptions.end();
+	}
+
+	SubscribeResult Subscribe(const char *channel);
+	bool Unsubscribe(const char *channel);
+	void UnsubscribeAll();
+	bool PushMessage(const ClientMessage &msg);
+
 private:
 	/* virtual methods from class BufferedSocket */
 	virtual InputResult OnSocketInput(void *data, size_t length) override;

src/ClientSubscribe.cxx

@@ -18,72 +18,75 @@
  */
 
 #include "config.h"
-#include "ClientSubscribe.hxx"
 #include "ClientInternal.hxx"
 #include "Idle.hxx"
 
 #include <assert.h>
 #include <string.h>
 
-enum client_subscribe_result
-client_subscribe(Client &client, const char *channel)
+	bool Unsubscribe(const char *channel);
+	void UnsubscribeAll();
+	bool PushMessage(const ClientMessage &msg);
+
+Client::SubscribeResult
+Client::Subscribe(const char *channel)
 {
 	assert(channel != nullptr);
 
 	if (!client_message_valid_channel_name(channel))
-		return CLIENT_SUBSCRIBE_INVALID;
+		return Client::SubscribeResult::INVALID;
 
-	if (client.num_subscriptions >= CLIENT_MAX_SUBSCRIPTIONS)
-		return CLIENT_SUBSCRIBE_FULL;
+	if (num_subscriptions >= CLIENT_MAX_SUBSCRIPTIONS)
+		return Client::SubscribeResult::FULL;
 
-	auto r = client.subscriptions.insert(channel);
+	auto r = subscriptions.insert(channel);
 	if (!r.second)
-		return CLIENT_SUBSCRIBE_ALREADY;
+		return Client::SubscribeResult::ALREADY;
 
-	++client.num_subscriptions;
+	++num_subscriptions;
 
 	idle_add(IDLE_SUBSCRIPTION);
 
-	return CLIENT_SUBSCRIBE_OK;
+	return Client::SubscribeResult::OK;
 }
 
 bool
-client_unsubscribe(Client &client, const char *channel)
+Client::Unsubscribe(const char *channel)
 {
-	const auto i = client.subscriptions.find(channel);
-	if (i == client.subscriptions.end())
+	const auto i = subscriptions.find(channel);
+	if (i == subscriptions.end())
 		return false;
 
-	assert(client.num_subscriptions > 0);
+	assert(num_subscriptions > 0);
 
-	client.subscriptions.erase(i);
-	--client.num_subscriptions;
+	subscriptions.erase(i);
+	--num_subscriptions;
 
 	idle_add(IDLE_SUBSCRIPTION);
 
-	assert((client.num_subscriptions == 0) ==
-	       client.subscriptions.empty());
+	assert((num_subscriptions == 0) ==
+	       subscriptions.empty());
 
 	return true;
 }
 
 void
-client_unsubscribe_all(Client &client)
+Client::UnsubscribeAll()
 {
-	client.subscriptions.clear();
-	client.num_subscriptions = 0;
+	subscriptions.clear();
+	num_subscriptions = 0;
 }
 
 bool
-client_push_message(Client &client, const ClientMessage &msg)
+Client::PushMessage(const ClientMessage &msg)
 {
-	if (client.messages.size() >= CLIENT_MAX_MESSAGES ||
-	    !client.IsSubscribed(msg.GetChannel()))
+	if (messages.size() >= CLIENT_MAX_MESSAGES ||
+	    !IsSubscribed(msg.GetChannel()))
 		return false;
 
-	if (client.messages.empty())
-		client.IdleAdd(IDLE_MESSAGE);
+	if (messages.empty())
+		IdleAdd(IDLE_MESSAGE);
 
-	client.messages.push_back(msg);
+	messages.push_back(msg);
 	return true;
 }

src/ClientSubscribe.hxx

@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef MPD_CLIENT_SUBSCRIBE_HXX
-#define MPD_CLIENT_SUBSCRIBE_HXX
-
-#include "Compiler.h"
-
-class Client;
-class ClientMessage;
-
-enum client_subscribe_result {
-	/** success */
-	CLIENT_SUBSCRIBE_OK,
-
-	/** invalid channel name */
-	CLIENT_SUBSCRIBE_INVALID,
-
-	/** already subscribed to this channel */
-	CLIENT_SUBSCRIBE_ALREADY,
-
-	/** too many subscriptions */
-	CLIENT_SUBSCRIBE_FULL,
-};
-
-enum client_subscribe_result
-client_subscribe(Client &client, const char *channel);
-
-bool
-client_unsubscribe(Client &client, const char *channel);
-
-void
-client_unsubscribe_all(Client &client);
-
-bool
-client_push_message(Client &client, const ClientMessage &msg);
-
-#endif

src/MessageCommands.cxx

@@ -19,7 +19,6 @@
 
 #include "config.h"
 #include "MessageCommands.hxx"
-#include "ClientSubscribe.hxx"
 #include "Client.hxx"
 #include "ClientList.hxx"
 #include "Instance.hxx"
@@ -37,28 +36,29 @@ handle_subscribe(Client &client, gcc_unused int argc, char *argv[])
 {
 	assert(argc == 2);
 
-	switch (client_subscribe(client, argv[1])) {
-	case CLIENT_SUBSCRIBE_OK:
+	switch (client.Subscribe(argv[1])) {
+	case Client::SubscribeResult::OK:
 		return COMMAND_RETURN_OK;
 
-	case CLIENT_SUBSCRIBE_INVALID:
+	case Client::SubscribeResult::INVALID:
 		command_error(client, ACK_ERROR_ARG,
 			      "invalid channel name");
 		return COMMAND_RETURN_ERROR;
 
-	case CLIENT_SUBSCRIBE_ALREADY:
+	case Client::SubscribeResult::ALREADY:
 		command_error(client, ACK_ERROR_EXIST,
 			      "already subscribed to this channel");
 		return COMMAND_RETURN_ERROR;
 
-	case CLIENT_SUBSCRIBE_FULL:
+	case Client::SubscribeResult::FULL:
 		command_error(client, ACK_ERROR_EXIST,
 			      "subscription list is full");
 		return COMMAND_RETURN_ERROR;
 	}
 
 	/* unreachable */
-	return COMMAND_RETURN_OK;
+	assert(false);
+	gcc_unreachable();
 }
 
 enum command_return
@@ -66,7 +66,7 @@ handle_unsubscribe(Client &client, gcc_unused int argc, char *argv[])
 {
 	assert(argc == 2);
 
-	if (client_unsubscribe(client, argv[1]))
+	if (client.Unsubscribe(argv[1]))
 		return COMMAND_RETURN_OK;
 	else {
 		command_error(client, ACK_ERROR_NO_EXIST,
@@ -124,7 +124,7 @@ handle_send_message(Client &client,
 	bool sent = false;
 	const ClientMessage msg(argv[1], argv[2]);
 	for (const auto &c : *instance->client_list)
-		if (client_push_message(*c, msg))
+		if (c->PushMessage(msg))
 			sent = true;
 
 	if (sent)