// Copyright (c) 2011 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 NET_DISK_CACHE_CACHE_UTIL_H_ #define NET_DISK_CACHE_CACHE_UTIL_H_ #include #include "base/callback_forward.h" #include "base/feature_list.h" #include "net/base/net_export.h" #include "net/disk_cache/disk_cache.h" namespace base { class FilePath; } namespace disk_cache { // Experiment to increase the cache size to see the impact on various // performance metrics. NET_EXPORT_PRIVATE extern const base::Feature kChangeDiskCacheSizeExperiment; // Moves the cache files from the given path to another location. // Fails if the destination exists already, or if it doesn't have // permission for the operation. This is basically a rename operation // for the cache directory. Returns true if successful. On ChromeOS, // this moves the cache contents, and leaves the empty cache // directory. NET_EXPORT_PRIVATE bool MoveCache(const base::FilePath& from_path, const base::FilePath& to_path); // Deletes the cache files stored on |path|, and optionally also attempts to // delete the folder itself. NET_EXPORT_PRIVATE void DeleteCache(const base::FilePath& path, bool remove_folder); // Deletes the given directory recursively, asynchronously. `callback` will // called with whether the operation succeeded. // This is done by: // 1. Renaming the directory to another directory, // 2. Calling `callback` with the result, and // 3. Deleting the directory. // This means the caller won't know the result of 3. NET_EXPORT_PRIVATE void CleanupDirectory( const base::FilePath& path, base::OnceCallback callback); // This runs 1. (see the above comments) synchronously. bool CleanupDirectorySync(const base::FilePath& path); // Returns the preferred max cache size given the available disk space and // cache type. NET_EXPORT_PRIVATE int PreferredCacheSize( int64_t available, net::CacheType type = net::DISK_CACHE); // The default cache size should not ideally be exposed, but the blockfile // backend uses it for reasons that include testing. NET_EXPORT_PRIVATE extern const int kDefaultCacheSize; } // namespace disk_cache #endif // NET_DISK_CACHE_CACHE_UTIL_H_