updating_db in status and some ideas for the TODO that i've already forgotten

git-svn-id: https://svn.musicpd.org/mpd/trunk@669 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/directory.c

@@ -88,6 +88,11 @@ void deleteEmptyDirectoriesInDirectory(Directory * directory);
 
 int addSubDirectoryToDirectory(Directory * directory, char * shortname, char * name);
 
+int isUpdatingDB() {
+	if(directory_updatePid>0) return 1;
+	return 0;
+}
+
 void directory_sigChldHandler(int pid, int status) {
 	if(directory_updatePid==pid) {
 		if(WIFSIGNALED(status) && WTERMSIG(status)!=SIGTERM) {