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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_UPDATE_CLIENT_BACKGROUND_DOWNLOADER_MAC_H_
#define COMPONENTS_UPDATE_CLIENT_BACKGROUND_DOWNLOADER_MAC_H_
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/gtest_prod_util.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/task/sequenced_task_runner.h"
#include "components/update_client/crx_downloader.h"
namespace update_client {
namespace {
// TODO(crbug.com/40285933): The session identifier might need to be more
// complex to accommodate multiple Chrome processes.
inline constexpr char kDefaultBackgroundSessionId[] = "CrxDownloader";
} // namespace
class BackgroundDownloaderSharedSession
: public base::RefCountedThreadSafe<BackgroundDownloaderSharedSession> {
public:
using OnDownloadCompleteCallback = base::RepeatingCallback<void(
bool,
const update_client::CrxDownloader::Result&,
const update_client::CrxDownloader::DownloadMetrics&)>;
virtual void DoStartDownload(
const GURL& url,
OnDownloadCompleteCallback on_download_complete_callback) = 0;
// Cancel all download tasks and invalidates this session. Future calls to
// DoStartDownload will fail until the session is recreated.
virtual void InvalidateAndCancel() = 0;
protected:
friend class base::RefCountedThreadSafe<BackgroundDownloaderSharedSession>;
virtual ~BackgroundDownloaderSharedSession() = default;
};
class BackgroundDownloader : public CrxDownloader {
public:
BackgroundDownloader(
scoped_refptr<CrxDownloader> successor,
scoped_refptr<BackgroundDownloaderSharedSession> shared_session,
scoped_refptr<base::SequencedTaskRunner> background_sequence_);
private:
friend class BackgroundDownloaderTest;
friend class BackgroundDownloaderCrashingClientTest;
FRIEND_TEST_ALL_PREFIXES(BackgroundDownloaderTest, ConcurrentDownloaders);
// Overrides for CrxDownloader.
~BackgroundDownloader() override;
base::OnceClosure DoStartDownload(const GURL& url) override;
base::OnceClosure DoStartDownload(
const GURL& url,
BackgroundDownloaderSharedSession::OnDownloadCompleteCallback);
SEQUENCE_CHECKER(sequence_checker_);
scoped_refptr<BackgroundDownloaderSharedSession> shared_session_;
scoped_refptr<base::SequencedTaskRunner> background_sequence_;
base::WeakPtrFactory<BackgroundDownloader> weak_ptr_factory_{this};
};
scoped_refptr<BackgroundDownloaderSharedSession>
MakeBackgroundDownloaderSharedSession(
scoped_refptr<base::SequencedTaskRunner> background_sequence,
const base::FilePath& download_cache,
const std::string& session_identifier = kDefaultBackgroundSessionId);
} // namespace update_client
#endif // COMPONENTS_UPDATE_CLIENT_BACKGROUND_DOWNLOADER_MAC_H_
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