Import Mbed OS hard-float snapshot

storage/filesystem/source/File.cpp

@@ -0,0 +1,119 @@
+/* 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 "filesystem/File.h"
+#include <errno.h>
+
+namespace mbed {
+
+File::File()
+    : _fs(0), _file(0)
+{
+}
+
+File::File(FileSystem *fs, const char *path, int flags)
+    : _fs(0), _file(0)
+{
+    open(fs, path, flags);
+}
+
+File::~File()
+{
+    if (_fs) {
+        close();
+    }
+}
+
+int File::open(FileSystem *fs, const char *path, int flags)
+{
+    if (_fs) {
+        return -EINVAL;
+    }
+
+    int err = fs->file_open(&_file, path, flags);
+    if (!err) {
+        _fs = fs;
+    }
+
+    return err;
+}
+
+int File::close()
+{
+    if (!_fs) {
+        return -EINVAL;
+    }
+
+    int err = _fs->file_close(_file);
+    _fs = 0;
+    return err;
+}
+
+ssize_t File::read(void *buffer, size_t len)
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_read(_file, buffer, len);
+}
+
+ssize_t File::write(const void *buffer, size_t len)
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_write(_file, buffer, len);
+}
+
+int File::sync()
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_sync(_file);
+}
+
+int File::isatty()
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_isatty(_file);
+}
+
+off_t File::seek(off_t offset, int whence)
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_seek(_file, offset, whence);
+}
+
+off_t File::tell()
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_tell(_file);
+}
+
+void File::rewind()
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_rewind(_file);
+}
+
+off_t File::size()
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_size(_file);
+}
+
+int File::truncate(off_t length)
+{
+    MBED_ASSERT(_fs);
+    return _fs->file_truncate(_file, length);
+}
+
+} // namespace mbed