reconnectable_url_loader_factory.h | Explore in Territory

// 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.

#ifndef CONTENT_BROWSER_LOADER_RECONNECTABLE_URL_LOADER_FACTORY_H_
#define CONTENT_BROWSER_LOADER_RECONNECTABLE_URL_LOADER_FACTORY_H_

#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
#include "content/public/browser/browser_thread.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"

namespace content {

// SharedURLLoaderFactory that caches and reuses a URLLoaderFactory remote
// created by its `CreateCallback`, and re-create and reconnect if the cached
// remote is disconnected.
// All methods (including the `CreateCallback` and the destructor) must be/are
// called on the original sequence.
// TODO(crbug.com/40947547): Merge `ReconnectableURLLoaderFactoryForIOThread`
// and rename the file.
class CONTENT_EXPORT ReconnectableURLLoaderFactory final
    : public network::SharedURLLoaderFactory { … };

// Similar to `ReconnectableURLLoaderFactory`, but this IO-thread-only version
// caches a URLLoaderFactory on IO thread at
// `ReconnectableURLLoaderFactoryForIOThread::url_loader_factory_` and
// re-creates and reconnects it if needed.
//
// `ReconnectableURLLoaderFactoryForIOThread` must live on UI thread (just
// because it is hard-coded using `GetUIThreadTaskRunner`).
class CONTENT_EXPORT ReconnectableURLLoaderFactoryForIOThread final
    : public base::RefCountedThreadSafe<
          ReconnectableURLLoaderFactoryForIOThread,
          BrowserThread::DeleteOnIOThread> { … };

// Bundles `ReconnectableURLLoaderFactoryForIOThread` and
// `ReconnectableURLLoaderFactory`. The two classes are held separately by this
// wrapper instead of e.g. being merged into a single object, so that
// `scoped_refptr` for one of them doesn't affect the lifetime of the other.
class CONTENT_EXPORT ReconnectableURLLoaderFactoryForIOThreadWrapper final { … };

}  // namespace content

#endif  // CONTENT_BROWSER_LOADER_RECONNECTABLE_URL_LOADER_FACTORY_H_
chromium/content/browser/loader/reconnectable_url_loader_factory.h
