chromium/storage/browser/blob/blob_transport_strategy.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "storage/browser/blob/blob_transport_strategy.h"

#include <memory>

#include "base/containers/circular_deque.h"
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/task/sequenced_task_runner.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "storage/browser/blob/blob_data_builder.h"
#include "third_party/blink/public/mojom/blob/data_element.mojom.h"

namespace storage {

namespace {

MemoryStrategy;

// Transport strategy when no transport is needed. All Bytes elements should
// have their data embedded already.
class NoneNeededTransportStrategy : public BlobTransportStrategy { … };

// Transport strategy that requests all data as replies.
class ReplyTransportStrategy : public BlobTransportStrategy { … };

// Transport strategy that requests all data as data pipes, one pipe at a time.
class DataPipeTransportStrategy : public BlobTransportStrategy { … };

// Transport strategy that requests all data through files.
class FileTransportStrategy : public BlobTransportStrategy { … };

}  // namespace

// static
std::unique_ptr<BlobTransportStrategy> BlobTransportStrategy::Create(
    MemoryStrategy strategy,
    BlobDataBuilder* builder,
    ResultCallback result_callback,
    const BlobStorageLimits& limits) { … }

BlobTransportStrategy::~BlobTransportStrategy() = default;

BlobTransportStrategy::BlobTransportStrategy(BlobDataBuilder* builder,
                                             ResultCallback result_callback)
    : … { … }

}  // namespace storage