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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_UPDATER_UPDATE_SERVICE_INTERNAL_H_
#define CHROME_UPDATER_UPDATE_SERVICE_INTERNAL_H_
#include "base/functional/callback_forward.h"
#include "base/memory/ref_counted.h"
namespace updater {
enum class UpdaterScope;
// The UpdateServiceInternal is a service abstraction to expose functionality
// made available only to callers which are part of the same instance of
// the updater installation. In other words, only a client and a service with
// identical build versions can communicate using this interface.
class UpdateServiceInternal
: public base::RefCountedThreadSafe<UpdateServiceInternal> {
public:
// Runs the UpdateServiceInternal and checks for updates if needed.
virtual void Run(base::OnceClosure callback) = 0;
// When UpdateServiceInternalProxy::Hello is invoked, the server will wake and
// do its ModeCheck. As a result, the candidate can be qualified and promoted
// (thus initializing the UpdateService for this candidate). Calling this
// function ensures that there is an active updater on the system when
// --install is running without performing expensive operations such as
// checking for updates.
virtual void Hello(base::OnceClosure callback) = 0;
protected:
friend class base::RefCountedThreadSafe<UpdateServiceInternal>;
virtual ~UpdateServiceInternal() = default;
};
} // namespace updater
#endif // CHROME_UPDATER_UPDATE_SERVICE_INTERNAL_H_
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