chromium/net/disk_cache/simple/simple_backend_impl.h

// Copyright 2013 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_SIMPLE_SIMPLE_BACKEND_IMPL_H_
#define NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_

#include <stdint.h>

#include <memory>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>

#include "base/compiler_specific.h"
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string_split.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/task_traits.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "net/base/cache_type.h"
#include "net/base/net_export.h"
#include "net/disk_cache/disk_cache.h"
#include "net/disk_cache/simple/post_operation_waiter.h"
#include "net/disk_cache/simple/simple_entry_impl.h"
#include "net/disk_cache/simple/simple_index_delegate.h"

namespace net {
class PrioritizedTaskRunner;
}  // namespace net

namespace disk_cache {

// SimpleBackendImpl is a new cache backend that stores entries in individual
// files.
// See
// http://www.chromium.org/developers/design-documents/network-stack/disk-cache/very-simple-backend
//
// The SimpleBackendImpl provides safe iteration; mutating entries during
// iteration cannot cause a crash. It is undefined whether entries created or
// destroyed during the iteration will be included in any pre-existing
// iterations.
//
// The non-static functions below must be called on the sequence on which the
// SimpleBackendImpl instance is created.

class BackendCleanupTracker;
class BackendFileOperationsFactory;
class SimpleEntryImpl;
class SimpleFileTracker;
class SimpleIndex;

class NET_EXPORT_PRIVATE SimpleBackendImpl final : public Backend,
                                                   public SimpleIndexDelegate { … };

}  // namespace disk_cache

#endif  // NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_