chromium/net/disk_cache/blockfile/sparse_control.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.

#ifndef NET_DISK_CACHE_BLOCKFILE_SPARSE_CONTROL_H_
#define NET_DISK_CACHE_BLOCKFILE_SPARSE_CONTROL_H_

#include <stdint.h>

#include <string>
#include <vector>

#include "base/compiler_specific.h"
#include "base/memory/raw_ptr.h"
#include "net/base/completion_once_callback.h"
#include "net/disk_cache/blockfile/bitmap.h"
#include "net/disk_cache/blockfile/disk_format.h"
#include "net/disk_cache/disk_cache.h"

namespace net {
class IOBuffer;
class DrainableIOBuffer;
}

namespace disk_cache {

class EntryImpl;

// This class provides support for the sparse capabilities of the disk cache.
// Basically, sparse IO is directed from EntryImpl to this class, and we split
// the operation into multiple small pieces, sending each one to the
// appropriate entry. An instance of this class is associated with each entry
// used directly for sparse operations (the entry passed in to the constructor).
class SparseControl { … };

}  // namespace disk_cache

#endif  // NET_DISK_CACHE_BLOCKFILE_SPARSE_CONTROL_H_