clean up signal handling using a polling method, from the genius that is mackstann

git-svn-id: https://svn.musicpd.org/mpd/trunk@697 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/main.c

@@ -451,10 +451,10 @@ int main(int argc, char * argv[]) {
         while(COMMAND_RETURN_KILL!=doIOForInterfaces()) {
                 syncPlayerAndPlaylist();
                 closeOldInterfaces();
+		if(COMMAND_RETURN_KILL==handlePendingSignals()) break;
+		readDirectoryDBIfUpdateIsFinished();
         }
 
-        finishSigHandlers();
-
         savePlaylistState();
         playerKill();