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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_FILES_DIR_READER_FALLBACK_H_
#define BASE_FILES_DIR_READER_FALLBACK_H_
namespace base {
class DirReaderFallback {
public:
// Open a directory. If |IsValid| is true, then |Next| can be called to start
// the iteration at the beginning of the directory.
explicit DirReaderFallback(const char* /* directory_path */) {}
// After construction, IsValid returns true iff the directory was
// successfully opened.
bool IsValid() const { return false; }
// Move to the next entry returning false if the iteration is complete.
bool Next() { return false; }
// Return the name of the current directory entry.
const char* name() { return nullptr;}
// Return the file descriptor which is being used.
int fd() const { return -1; }
// Returns true if this is a no-op fallback class (for testing).
static bool IsFallback() { return true; }
};
} // namespace base
#endif // BASE_FILES_DIR_READER_FALLBACK_H_
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