directory: added directory_is_empty()

directory_is_empty() is a tiny inline function which determine if a
directory has any child objects (sub directories or songs).

2 files changed, 9 insertions, 1 deletions

diff --git a/src/directory.c b/src/directory.c
index 9913154e2..d1f0e3300 100644
--- a/src/directory.c
+++ b/src/directory.c
@@ -89,7 +89,7 @@ static void deleteEmptyDirectoriesInDirectory(Directory * directory)
 
 	for (i = dv->nr; --i >= 0; ) {
 		deleteEmptyDirectoriesInDirectory(dv->base[i]);
-		if (!dv->base[i]->children.nr && !dv->base[i]->songs.nr)
+		if (directory_is_empty(dv->base[i]))
 			dirvec_delete(dv, dv->base[i]);
 	}
 	if (!dv->nr)
diff --git a/src/directory.h b/src/directory.h
index 44e6f63d5..e197600d1 100644
--- a/src/directory.h
+++ b/src/directory.h
@@ -23,6 +23,8 @@
 #include "songvec.h"
 #include "list.h"
 
+#include <stdbool.h>
+
 struct dirvec {
 	struct _Directory **base;
 	size_t nr;
@@ -53,6 +55,12 @@ newDirectory(const char *dirname, Directory * parent);
 void
 freeDirectory(Directory * directory);
 
+static inline bool
+directory_is_empty(Directory *directory)
+{
+	return directory->children.nr == 0 && directory->songs.nr == 0;
+}
+
 Directory *
 getDirectory(const char *name);