consolidate the 3 file_exists() functions into one; use the version that explicitly uses dircache; give dir_exists() the same treatment for consistency

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15742 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 32 insertions, 0 deletions

diff --git a/apps/misc.c b/apps/misc.c
index 4af97afb5e..a8710c312f 100644
--- a/apps/misc.c
+++ b/apps/misc.c
@@ -1092,3 +1092,35 @@ char* strrsplt(char* str, int c)
     return s;
 }
 
+/* Test file existence, using dircache of possible */
+bool file_exists(const char *file)
+{
+    int fd;
+
+    if (!file || strlen(file) <= 0)
+        return false;
+
+#ifdef HAVE_DIRCACHE
+    if (dircache_is_enabled())
+        return (dircache_get_entry_ptr(file) != NULL);
+#endif
+
+    fd = open(file, O_RDONLY);
+    if (fd < 0)
+        return false;
+    close(fd);
+    return true;
+}
+
+bool dir_exists(const char *path)
+{
+    DIR* d = opendir(path);
+    bool retval;
+    if (d != NULL) {
+        closedir(d);
+        retval = true;
+    } else {
+        retval = false;
+    }
+    return retval;
+}