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// Copyright 2011 The Chromium Authors
// 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 <stdint.h>
#include "base/feature_list.h"
#include "base/functional/callback_forward.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 BASE_DECLARE_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<void(bool)> 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_
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