chromium/net/disk_cache/blockfile/mapped_file.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// See net/disk_cache/disk_cache.h for the public interface of the cache.

#ifndef NET_DISK_CACHE_BLOCKFILE_MAPPED_FILE_H_
#define NET_DISK_CACHE_BLOCKFILE_MAPPED_FILE_H_

#include <stddef.h>

#include "base/memory/raw_ptr.h"
#include "base/memory/raw_ptr_exclusion.h"
#include "build/build_config.h"
#include "net/base/net_export.h"
#include "net/disk_cache/blockfile/file.h"
#include "net/disk_cache/blockfile/file_block.h"
#include "net/net_buildflags.h"

namespace base {
class FilePath;
}

namespace disk_cache {

// This class implements a memory mapped file used to access block-files. The
// idea is that the header and bitmap will be memory mapped all the time, and
// the actual data for the blocks will be access asynchronously (most of the
// time).
class NET_EXPORT_PRIVATE MappedFile : public File { … };

// Helper class for calling Flush() on exit from the current scope.
class ScopedFlush { … };

}  // namespace disk_cache

#endif  // NET_DISK_CACHE_BLOCKFILE_MAPPED_FILE_H_