Changeset 59c07773 in mainline

Timestamp:

2011-08-02T19:36:08Z (14 years ago)

Author:

Oleg Romanenko <romanenko.oleg@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0bd5ff1

Parents:

8f54827

Message:

Implement exfat_has_children

File:

• uspace/srv/fs/exfat/exfat_ops.c (modified) (1 diff)

uspace/srv/fs/exfat/exfat_ops.c

@@ -481 +481 @@
 int exfat_has_children(bool *has_children, fs_node_t *fn)
 {
+        exfat_directory_t di;
+        exfat_dentry_t *d;
+        exfat_node_t *nodep = EXFAT_NODE(fn);
+        int rc;
+
         *has_children = false;
-        return EOK;
+
+        if (nodep->type != EXFAT_DIRECTORY)
+                return EOK;
+
+        fibril_mutex_lock(&nodep->idx->lock);
+
+        rc = exfat_directory_open(nodep, &di);
+        if (rc != EOK) {
+                fibril_mutex_unlock(&nodep->idx->lock);
+                return rc;
+        }
+
+        do {
+                rc = exfat_directory_get(&di, &d);
+                if (rc != EOK) {
+                        (void) exfat_directory_close(&di);
+                        fibril_mutex_unlock(&nodep->idx->lock);
+                        return rc;
+                }
+                switch (exfat_classify_dentry(d)) {
+                case EXFAT_DENTRY_SKIP:
+                case EXFAT_DENTRY_FREE:
+                        continue;
+                case EXFAT_DENTRY_LAST:
+                        *has_children = false;
+                        goto exit;
+                default:
+                        *has_children = true;
+                        goto exit;
+                }
+        } while (exfat_directory_next(&di) == EOK);
+
+exit:
+        rc = exfat_directory_close(&di);
+        fibril_mutex_unlock(&nodep->idx->lock);
+        return rc;
 }