1 // Copyright 2013 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 CHROME_BROWSER_CHROMEOS_DRIVE_DEBUG_INFO_COLLECTOR_H_ 6 #define CHROME_BROWSER_CHROMEOS_DRIVE_DEBUG_INFO_COLLECTOR_H_ 7 8 #include "base/basictypes.h" 9 #include "base/callback_forward.h" 10 #include "chrome/browser/chromeos/drive/file_cache.h" 11 #include "chrome/browser/chromeos/drive/file_system_interface.h" 12 13 namespace drive { 14 15 // This class provides some methods which are useful to show the debug 16 // info on chrome://drive-internals page. 17 // All the method should be called on UI thread. 18 class DebugInfoCollector { 19 public: 20 // Callback for IterateFileCache(). 21 typedef base::Callback<void(const std::string& id, 22 const FileCacheEntry& cache_entry)> 23 IterateFileCacheCallback; 24 25 DebugInfoCollector(FileSystemInterface* file_system, 26 internal::FileCache* file_cache, 27 base::SequencedTaskRunner* blocking_task_runner); 28 ~DebugInfoCollector(); 29 30 // Iterates all files in the file cache and calls |iteration_callback| for 31 // each file. |completion_callback| is run upon completion. 32 // |iteration_callback| and |completion_callback| must not be null. 33 void IterateFileCache(const IterateFileCacheCallback& iteration_callback, 34 const base::Closure& completion_callback); 35 36 // Returns miscellaneous metadata of the file system like the largest 37 // timestamp. |callback| must not be null. 38 void GetMetadata(const GetFilesystemMetadataCallback& callback); 39 40 private: 41 FileSystemInterface* file_system_; // Not owned. 42 internal::FileCache* file_cache_; // Not owned. 43 scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_; 44 45 DISALLOW_COPY_AND_ASSIGN(DebugInfoCollector); 46 }; 47 48 } // namespace drive 49 50 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_DEBUG_INFO_COLLECTOR_H_ 51