1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_DIR_READER_FALLBACK_H_ 6 #define BASE_DIR_READER_FALLBACK_H_ 7 #pragma once 8 9 namespace base { 10 11 class DirReaderFallback { 12 public: 13 // Open a directory. If |IsValid| is true, then |Next| can be called to start 14 // the iteration at the beginning of the directory. 15 explicit DirReaderFallback(const char* directory_path) { } 16 // After construction, IsValid returns true iff the directory was 17 // successfully opened. 18 bool IsValid() const { return false; } 19 // Move to the next entry returning false if the iteration is complete. 20 bool Next() { return false; } 21 // Return the name of the current directory entry. 22 const char* name() { return 0;} 23 // Return the file descriptor which is being used. 24 int fd() const { return -1; } 25 // Returns true if this is a no-op fallback class (for testing). 26 static bool IsFallback() { return true; } 27 }; 28 29 } // namespace base 30 31 #endif // BASE_DIR_READER_FALLBACK_H_ 32
