Diff: features/filesystem/Dir.cpp

Revision:

0:f782d9c66c49

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/features/filesystem/Dir.cpp	Fri Feb 02 05:42:23 2018 +0000
@@ -0,0 +1,90 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Dir.h"
+#include "mbed.h"
+#include <errno.h>
+
+
+Dir::Dir()
+    : _fs(0), _dir(0)
+{
+}
+
+Dir::Dir(FileSystem *fs, const char *path)
+    : _fs(0), _dir(0)
+{
+    open(fs, path);
+}
+
+Dir::~Dir()
+{
+    if (_fs) {
+        close();
+    }
+}
+
+int Dir::open(FileSystem *fs, const char *path)
+{
+    if (_fs) {
+        return -EINVAL;
+    }
+
+    _fs = fs;
+    return _fs->dir_open(&_dir, path);
+}
+
+int Dir::close()
+{
+    if (!_fs) {
+        return -EINVAL;
+    }
+
+    int err = _fs->dir_close(_dir);
+    _fs = 0;
+    return err;
+}
+
+ssize_t Dir::read(struct dirent *ent)
+{
+    MBED_ASSERT(_fs);
+    memset(ent, 0, sizeof(struct dirent));
+    return _fs->dir_read(_dir, ent);
+}
+
+void Dir::seek(off_t offset)
+{
+    MBED_ASSERT(_fs);
+    return _fs->dir_seek(_dir, offset);
+}
+
+off_t Dir::tell()
+{
+    MBED_ASSERT(_fs);
+    return _fs->dir_tell(_dir);
+}
+
+void Dir::rewind()
+{
+    MBED_ASSERT(_fs);
+    return _fs->dir_rewind(_dir);
+}
+
+size_t Dir::size()
+{
+    MBED_ASSERT(_fs);
+    return _fs->dir_size(_dir);
+}