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Side by Side Diff: services/service_manager/public/cpp/service.h

Issue 2804373002: Eliminate Connector::Connect(), Connection, etc. (Closed)
Patch Set: . Created 3 years, 8 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_H_ 5 #ifndef SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_H_
6 #define SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_H_ 6 #define SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/macros.h" 10 #include "base/macros.h"
11 #include "mojo/public/cpp/system/message_pipe.h" 11 #include "mojo/public/cpp/system/message_pipe.h"
12 12
13 namespace service_manager { 13 namespace service_manager {
14 14
15 class InterfaceRegistry;
16 class ServiceContext; 15 class ServiceContext;
17 struct ServiceInfo; 16 struct ServiceInfo;
18 17
19 // The primary contract between a Service and the Service Manager, receiving 18 // The primary contract between a Service and the Service Manager, receiving
20 // lifecycle notifications and connection requests. 19 // lifecycle notifications and connection requests.
21 class Service { 20 class Service {
22 public: 21 public:
23 Service(); 22 Service();
24 virtual ~Service(); 23 virtual ~Service();
25 24
26 // Called exactly once when a bidirectional connection with the Service 25 // Called exactly once when a bidirectional connection with the Service
27 // Manager has been established. No calls to OnConnect() or OnBindInterface() 26 // Manager has been established. No calls to OnConnect() or OnBindInterface()
28 // will be made before this. 27 // will be made before this.
29 virtual void OnStart(); 28 virtual void OnStart();
30 29
31 // Called each time a connection to this service is brokered by the Service
32 // Manager. Implement this to expose interfaces to other services.
33 //
34 // Return true if the connection should succeed or false if the connection
35 // should be rejected.
36 //
37 // The default implementation returns false.
38 virtual bool OnConnect(const ServiceInfo& remote_info,
39 InterfaceRegistry* registry);
40
41 // Called when the service identified by |source_info| requests this service 30 // Called when the service identified by |source_info| requests this service
42 // bind a request for |interface_name|. If this method has been called, the 31 // bind a request for |interface_name|. If this method has been called, the
43 // service manager has already determined that policy permits this interface 32 // service manager has already determined that policy permits this interface
44 // to be bound, so the implementation of this method can trust that it should 33 // to be bound, so the implementation of this method can trust that it should
45 // just blindly bind it under most conditions. 34 // just blindly bind it under most conditions.
46 virtual void OnBindInterface(const ServiceInfo& source_info, 35 virtual void OnBindInterface(const ServiceInfo& source_info,
47 const std::string& interface_name, 36 const std::string& interface_name,
48 mojo::ScopedMessagePipeHandle interface_pipe); 37 mojo::ScopedMessagePipeHandle interface_pipe);
49 38
50 // Called when the Service Manager has stopped tracking this instance. The 39 // Called when the Service Manager has stopped tracking this instance. The
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after
82 // TODO(rockot): Remove this. It's here to satisfy a few remaining use cases 71 // TODO(rockot): Remove this. It's here to satisfy a few remaining use cases
83 // where a Service impl is owned by something other than its ServiceContext. 72 // where a Service impl is owned by something other than its ServiceContext.
84 class ForwardingService : public Service { 73 class ForwardingService : public Service {
85 public: 74 public:
86 // |target| must outlive this object. 75 // |target| must outlive this object.
87 explicit ForwardingService(Service* target); 76 explicit ForwardingService(Service* target);
88 ~ForwardingService() override; 77 ~ForwardingService() override;
89 78
90 // Service: 79 // Service:
91 void OnStart() override; 80 void OnStart() override;
92 bool OnConnect(const ServiceInfo& remote_info,
93 InterfaceRegistry* registry) override;
94 void OnBindInterface(const ServiceInfo& remote_info, 81 void OnBindInterface(const ServiceInfo& remote_info,
95 const std::string& interface_name, 82 const std::string& interface_name,
96 mojo::ScopedMessagePipeHandle interface_pipe) override; 83 mojo::ScopedMessagePipeHandle interface_pipe) override;
97 bool OnServiceManagerConnectionLost() override; 84 bool OnServiceManagerConnectionLost() override;
98 85
99 private: 86 private:
100 void SetContext(ServiceContext* context) override; 87 void SetContext(ServiceContext* context) override;
101 88
102 Service* const target_ = nullptr; 89 Service* const target_ = nullptr;
103 90
104 DISALLOW_COPY_AND_ASSIGN(ForwardingService); 91 DISALLOW_COPY_AND_ASSIGN(ForwardingService);
105 }; 92 };
106 93
107 } // namespace service_manager 94 } // namespace service_manager
108 95
109 #endif // SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_H_ 96 #endif // SERVICES_SERVICE_MANAGER_PUBLIC_CPP_SERVICE_H_
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