main: export the main_loop variable

Other libraries may need to access the main_loop reference, to add or
remove events, or to call g_main_loop_quit().

src/Makefile.am

@@ -43,6 +43,7 @@ mpd_headers = \
 	listen.h \
 	log.h \
 	ls.h \
+	main.h \
 	main_notify.h \
 	daemon.h \
 	normalize.h \

src/client.c

@@ -25,6 +25,7 @@
 #include "main_notify.h"
 #include "dlist.h"
 #include "idle.h"
+#include "main.h"
 
 #include "../config.h"
 
@@ -471,7 +472,7 @@ client_in_event(G_GNUC_UNUSED GIOChannel *source,
 	switch (ret) {
 	case COMMAND_RETURN_KILL:
 		client_close(client);
-		g_main_loop_quit(NULL);
+		g_main_loop_quit(main_loop);
 		return false;
 
 	case COMMAND_RETURN_CLOSE:

src/main.c

@@ -75,6 +75,8 @@
 #include <locale.h>
 #endif
 
+GMainLoop *main_loop;
+
 static void changeToUser(void)
 {
 #ifndef WIN32
@@ -207,7 +209,6 @@ main_notify_triggered(void)
 int main(int argc, char *argv[])
 {
 	Options options;
-	GMainLoop *main_loop;
 	clock_t start;
 	GTimer *save_state_timer;
 

src/main.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2003-2008 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef MAIN_H
+#define MAIN_H
+
+extern GMainLoop *main_loop;
+
+#endif