1 // Copyright (c) 2012 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 // See net/disk_cache/disk_cache.h for the public interface of the cache. 6 7 #ifndef NET_DISK_CACHE_BLOCKFILE_BACKEND_WORKER_V3_H_ 8 #define NET_DISK_CACHE_BLOCKFILE_BACKEND_WORKER_V3_H_ 9 10 #include "base/containers/hash_tables.h" 11 #include "base/files/file_path.h" 12 #include "base/memory/ref_counted.h" 13 #include "net/disk_cache/blockfile/addr.h" 14 #include "net/disk_cache/blockfile/backend_impl_v3.h" 15 #include "net/disk_cache/blockfile/block_files.h" 16 17 namespace base { 18 class SingleThreadTaskRunner; 19 } // namespace base 20 21 namespace disk_cache { 22 23 class BackendImplV3::Worker : public base::RefCountedThreadSafe<Worker> { 24 public: 25 Worker(const base::FilePath& path, 26 const scoped_refptr<base::SingleThreadTaskRunner>& main_thread); 27 28 // Performs general initialization for this current instance of the cache. 29 int Init(const CompletionCallback& callback); 30 31 private: 32 friend class base::RefCountedThreadSafe<Worker>; 33 34 ~Worker(); 35 void CleanupCache(); 36 37 // Returns the full name for an external storage file. 38 base::FilePath GetFileName(Addr address) const; 39 40 // Creates a new backing file for the cache index. 41 bool CreateBackingStore(disk_cache::File* file); 42 bool InitBackingStore(bool* file_created); 43 44 // Performs basic checks on the index file. Returns false on failure. 45 bool CheckIndex(); 46 47 base::FilePath path_; // Path to the folder used as backing storage. 48 BlockFiles block_files_; // Set of files used to store all data. 49 bool init_; // controls the initialization of the system. 50 51 DISALLOW_COPY_AND_ASSIGN(Worker); 52 }; 53 54 } // namespace disk_cache 55 56 #endif // NET_DISK_CACHE_BLOCKFILE_BACKEND_WORKER_V3_H_ 57
