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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_DRIVEFS_DRIVEFS_BOOTSTRAP_H_
#define CHROMEOS_ASH_COMPONENTS_DRIVEFS_DRIVEFS_BOOTSTRAP_H_
#include <memory>
#include "base/component_export.h"
#include "base/files/scoped_file.h"
#include "base/unguessable_token.h"
#include "chromeos/ash/components/drivefs/mojom/drivefs.mojom.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/system/invitation.h"
namespace drivefs {
// Awaits for connection from DriveFS.
class COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_DRIVEFS)
DriveFsBootstrapListener {
public:
DriveFsBootstrapListener();
DriveFsBootstrapListener(const DriveFsBootstrapListener&) = delete;
DriveFsBootstrapListener& operator=(const DriveFsBootstrapListener&) = delete;
virtual ~DriveFsBootstrapListener();
const base::UnguessableToken& pending_token() const { return pending_token_; }
virtual mojo::PendingRemote<mojom::DriveFsBootstrap> bootstrap();
bool is_connected() const { return connected_; }
protected:
// Protected for stubbing out for testing.
virtual void SendInvitationOverPipe(base::ScopedFD handle);
private:
void AcceptMojoConnection(base::ScopedFD handle);
mojo::OutgoingInvitation invitation_;
mojo::PendingRemote<mojom::DriveFsBootstrap> bootstrap_;
// The token passed to DriveFS as part of 'source path' used to match it to
// this instance.
base::UnguessableToken pending_token_;
bool connected_ = false;
};
// Establishes and holds mojo connection to DriveFS.
class COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_DRIVEFS) DriveFsConnection {
public:
DriveFsConnection() = default;
DriveFsConnection(const DriveFsConnection&) = delete;
DriveFsConnection& operator=(const DriveFsConnection&) = delete;
virtual ~DriveFsConnection() = default;
virtual base::UnguessableToken Connect(mojom::DriveFsDelegate* delegate,
base::OnceClosure on_disconnected) = 0;
virtual mojom::DriveFs& GetDriveFs() = 0;
static std::unique_ptr<DriveFsConnection> Create(
std::unique_ptr<DriveFsBootstrapListener> bootstrap_listener,
mojom::DriveFsConfigurationPtr config);
};
} // namespace drivefs
#endif // CHROMEOS_ASH_COMPONENTS_DRIVEFS_DRIVEFS_BOOTSTRAP_H_
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