1 // Copyright 2018 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROMEOS_COMPONENTS_DRIVEFS_DRIVEFS_BOOTSTRAP_H_ 6 #define CHROMEOS_COMPONENTS_DRIVEFS_DRIVEFS_BOOTSTRAP_H_ 7 8 #include <memory> 9 10 #include "base/component_export.h" 11 #include "base/files/scoped_file.h" 12 #include "base/macros.h" 13 #include "base/unguessable_token.h" 14 #include "chromeos/components/drivefs/mojom/drivefs.mojom.h" 15 #include "mojo/public/cpp/bindings/pending_remote.h" 16 #include "mojo/public/cpp/system/invitation.h" 17 18 namespace drivefs { 19 20 // Awaits for connection from DriveFS. COMPONENT_EXPORT(DRIVEFS)21class COMPONENT_EXPORT(DRIVEFS) DriveFsBootstrapListener { 22 public: 23 DriveFsBootstrapListener(); 24 virtual ~DriveFsBootstrapListener(); 25 26 const base::UnguessableToken& pending_token() const { return pending_token_; } 27 virtual mojo::PendingRemote<mojom::DriveFsBootstrap> bootstrap(); 28 bool is_connected() const { return connected_; } 29 30 protected: 31 // Protected for stubbing out for testing. 32 virtual void SendInvitationOverPipe(base::ScopedFD handle); 33 34 private: 35 void AcceptMojoConnection(base::ScopedFD handle); 36 37 mojo::OutgoingInvitation invitation_; 38 mojo::PendingRemote<mojom::DriveFsBootstrap> bootstrap_; 39 40 // The token passed to DriveFS as part of 'source path' used to match it to 41 // this instance. 42 base::UnguessableToken pending_token_; 43 44 bool connected_ = false; 45 46 DISALLOW_COPY_AND_ASSIGN(DriveFsBootstrapListener); 47 }; 48 49 // Establishes and holds mojo connection to DriveFS. COMPONENT_EXPORT(DRIVEFS)50class COMPONENT_EXPORT(DRIVEFS) DriveFsConnection { 51 public: 52 DriveFsConnection() = default; 53 virtual ~DriveFsConnection() = default; 54 virtual base::UnguessableToken Connect(mojom::DriveFsDelegate* delegate, 55 base::OnceClosure on_disconnected) = 0; 56 virtual mojom::DriveFs& GetDriveFs() = 0; 57 58 static std::unique_ptr<DriveFsConnection> Create( 59 std::unique_ptr<DriveFsBootstrapListener> bootstrap_listener, 60 mojom::DriveFsConfigurationPtr config); 61 62 private: 63 DISALLOW_COPY_AND_ASSIGN(DriveFsConnection); 64 }; 65 66 } // namespace drivefs 67 68 #endif // CHROMEOS_COMPONENTS_DRIVEFS_DRIVEFS_BOOTSTRAP_H_ 69