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Side by Side Diff: content/public/common/service_manager_connection.h

Issue 2398783002: Rename a bunch of Mojo Application stuff to reference Services. (Closed)
Patch Set: . Created 4 years, 2 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 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 CONTENT_PUBLIC_COMMON_MOJO_SHELL_CONNECTION_H_ 5 #ifndef CONTENT_PUBLIC_COMMON_SERVICE_MANAGER_CONNECTION_H_
6 #define CONTENT_PUBLIC_COMMON_MOJO_SHELL_CONNECTION_H_ 6 #define CONTENT_PUBLIC_COMMON_SERVICE_MANAGER_CONNECTION_H_
7 7
8 #include <memory> 8 #include <memory>
9 9
10 #include "base/callback_forward.h" 10 #include "base/callback_forward.h"
11 #include "base/sequenced_task_runner.h" 11 #include "base/sequenced_task_runner.h"
12 #include "content/common/content_export.h" 12 #include "content/common/content_export.h"
13 #include "content/public/common/mojo_application_info.h" 13 #include "content/public/common/service_info.h"
14 #include "services/shell/public/cpp/identity.h" 14 #include "services/shell/public/cpp/identity.h"
15 #include "services/shell/public/interfaces/service.mojom.h" 15 #include "services/shell/public/interfaces/service.mojom.h"
16 16
17 namespace shell { 17 namespace shell {
18 class Connection; 18 class Connection;
19 class Connector; 19 class Connector;
20 class InterfaceProvider; 20 class InterfaceProvider;
21 class InterfaceRegistry; 21 class InterfaceRegistry;
22 } 22 }
23 23
24 namespace content { 24 namespace content {
25 25
26 class ConnectionFilter; 26 class ConnectionFilter;
27 27
28 // Encapsulates a connection to a //services/shell. 28 // Encapsulates a connection to a //services/shell.
29 // Access a global instance on the thread the ServiceContext was bound by 29 // Access a global instance on the thread the ServiceContext was bound by
30 // calling Holder::Get(). 30 // calling Holder::Get().
31 // Clients can add shell::Service implementations whose exposed interfaces 31 // Clients can add shell::Service implementations whose exposed interfaces
32 // will be exposed to inbound connections to this object's Service. 32 // will be exposed to inbound connections to this object's Service.
33 // Alternatively clients can define named services that will be constructed when 33 // Alternatively clients can define named services that will be constructed when
34 // requests for those service names are received. 34 // requests for those service names are received.
35 // Clients must call any of the registration methods when receiving 35 // Clients must call any of the registration methods when receiving
36 // ContentBrowserClient::RegisterInProcessMojoApplications(). 36 // ContentBrowserClient::RegisterInProcessServices().
37 class CONTENT_EXPORT MojoShellConnection { 37 class CONTENT_EXPORT ServiceManagerConnection {
38 public: 38 public:
39 using ServiceRequestHandler = 39 using ServiceRequestHandler =
40 base::Callback<void(shell::mojom::ServiceRequest)>; 40 base::Callback<void(shell::mojom::ServiceRequest)>;
41 using Factory = base::Callback<std::unique_ptr<MojoShellConnection>(void)>; 41 using Factory =
42 base::Callback<std::unique_ptr<ServiceManagerConnection>(void)>;
42 43
43 // Stores an instance of |connection| in TLS for the current process. Must be 44 // Stores an instance of |connection| in TLS for the current process. Must be
44 // called on the thread the connection was created on. 45 // called on the thread the connection was created on.
45 static void SetForProcess(std::unique_ptr<MojoShellConnection> connection); 46 static void SetForProcess(
47 std::unique_ptr<ServiceManagerConnection> connection);
46 48
47 // Returns the per-process instance, or nullptr if the Shell connection has 49 // Returns the per-process instance, or nullptr if the Service Manager
48 // not yet been bound. Must be called on the thread the connection was created 50 // connection has not yet been bound. Must be called on the thread the
49 // on. 51 // connection was created on.
50 static MojoShellConnection* GetForProcess(); 52 static ServiceManagerConnection* GetForProcess();
51 53
52 // Destroys the per-process instance. Must be called on the thread the 54 // Destroys the per-process instance. Must be called on the thread the
53 // connection was created on. 55 // connection was created on.
54 static void DestroyForProcess(); 56 static void DestroyForProcess();
55 57
56 virtual ~MojoShellConnection(); 58 virtual ~ServiceManagerConnection();
57 59
58 // Sets the factory used to create the MojoShellConnection. This must be 60 // Sets the factory used to create the ServiceManagerConnection. This must be
59 // called before the MojoShellConnection has been created. 61 // called before the ServiceManagerConnection has been created.
60 static void SetFactoryForTest(Factory* factory); 62 static void SetFactoryForTest(Factory* factory);
61 63
62 // Creates a MojoShellConnection from |request|. The connection binds 64 // Creates a ServiceManagerConnection from |request|. The connection binds
63 // its interfaces and accept new connections on |io_task_runner| only. Note 65 // its interfaces and accept new connections on |io_task_runner| only. Note
64 // that no incoming connections are accepted until Start() is called. 66 // that no incoming connections are accepted until Start() is called.
65 static std::unique_ptr<MojoShellConnection> Create( 67 static std::unique_ptr<ServiceManagerConnection> Create(
66 shell::mojom::ServiceRequest request, 68 shell::mojom::ServiceRequest request,
67 scoped_refptr<base::SequencedTaskRunner> io_task_runner); 69 scoped_refptr<base::SequencedTaskRunner> io_task_runner);
68 70
69 // Begins accepting incoming connections. Connection filters MUST be added 71 // Begins accepting incoming connections. Connection filters MUST be added
70 // before calling this in order to avoid races. See AddConnectionFilter() 72 // before calling this in order to avoid races. See AddConnectionFilter()
71 // below. 73 // below.
72 virtual void Start() = 0; 74 virtual void Start() = 0;
73 75
74 // Sets a closure to be invoked once the connection receives an Initialize() 76 // Sets a closure to be invoked once the connection receives an Initialize()
75 // request from the shell. 77 // request from the shell.
76 virtual void SetInitializeHandler(const base::Closure& handler) = 0; 78 virtual void SetInitializeHandler(const base::Closure& handler) = 0;
77 79
78 // Returns the shell::Connector received via this connection's Service 80 // Returns the shell::Connector received via this connection's Service
79 // implementation. Use this to initiate connections as this object's Identity. 81 // implementation. Use this to initiate connections as this object's Identity.
80 virtual shell::Connector* GetConnector() = 0; 82 virtual shell::Connector* GetConnector() = 0;
81 83
82 // Returns this connection's identity with the shell. Connections initiated 84 // Returns this connection's identity with the Service Manager. Connections
83 // via the shell::Connector returned by GetConnector() will use this. 85 // initiated via the shell::Connector returned by GetConnector() will use
86 // this.
84 virtual const shell::Identity& GetIdentity() const = 0; 87 virtual const shell::Identity& GetIdentity() const = 0;
85 88
86 // Sets a closure that is called when the connection is lost. Note that 89 // Sets a closure that is called when the connection is lost. Note that
87 // connection may already have been closed, in which case |closure| will be 90 // connection may already have been closed, in which case |closure| will be
88 // run immediately before returning from this function. 91 // run immediately before returning from this function.
89 virtual void SetConnectionLostClosure(const base::Closure& closure) = 0; 92 virtual void SetConnectionLostClosure(const base::Closure& closure) = 0;
90 93
91 // Provides an InterfaceRegistry to forward incoming interface requests to 94 // Provides an InterfaceRegistry to forward incoming interface requests to
92 // on the MojoShellConnection's own thread if they aren't bound by the 95 // on the ServiceManagerConnection's own thread if they aren't bound by the
93 // connection's internal InterfaceRegistry on the IO thread. 96 // connection's internal InterfaceRegistry on the IO thread.
94 // 97 //
95 // Also configures |interface_provider| to forward all of its outgoing 98 // Also configures |interface_provider| to forward all of its outgoing
96 // interface requests to the connection's internal remote interface provider. 99 // interface requests to the connection's internal remote interface provider.
97 // 100 //
98 // Note that neither |interface_registry| or |interface_provider| is owned 101 // Note that neither |interface_registry| or |interface_provider| is owned
99 // and both MUST outlive the MojoShellConnection. 102 // and both MUST outlive the ServiceManagerConnection.
100 // 103 //
101 // TODO(rockot): Remove this. It's a temporary solution to avoid porting all 104 // TODO(rockot): Remove this. It's a temporary solution to avoid porting all
102 // relevant code to ConnectionFilters at once. 105 // relevant code to ConnectionFilters at once.
103 virtual void SetupInterfaceRequestProxies( 106 virtual void SetupInterfaceRequestProxies(
104 shell::InterfaceRegistry* registry, 107 shell::InterfaceRegistry* registry,
105 shell::InterfaceProvider* provider) = 0; 108 shell::InterfaceProvider* provider) = 0;
106 109
107 static const int kInvalidConnectionFilterId = 0; 110 static const int kInvalidConnectionFilterId = 0;
108 111
109 // Allows the caller to filter inbound connections and/or expose interfaces 112 // Allows the caller to filter inbound connections and/or expose interfaces
(...skipping 10 matching lines...) Expand all
120 std::unique_ptr<ConnectionFilter> filter) = 0; 123 std::unique_ptr<ConnectionFilter> filter) = 0;
121 124
122 // Removes a filter using the id value returned by AddConnectionFilter(). 125 // Removes a filter using the id value returned by AddConnectionFilter().
123 // Removal (and destruction) happens asynchronously on the IO thread. 126 // Removal (and destruction) happens asynchronously on the IO thread.
124 virtual void RemoveConnectionFilter(int filter_id) = 0; 127 virtual void RemoveConnectionFilter(int filter_id) = 0;
125 128
126 // Adds an embedded service to this connection's ServiceFactory. 129 // Adds an embedded service to this connection's ServiceFactory.
127 // |info| provides details on how to construct new instances of the 130 // |info| provides details on how to construct new instances of the
128 // service when an incoming connection is made to |name|. 131 // service when an incoming connection is made to |name|.
129 virtual void AddEmbeddedService(const std::string& name, 132 virtual void AddEmbeddedService(const std::string& name,
130 const MojoApplicationInfo& info) = 0; 133 const ServiceInfo& info) = 0;
131 134
132 // Adds a generic ServiceRequestHandler for a given service name. This 135 // Adds a generic ServiceRequestHandler for a given service name. This
133 // will be used to satisfy any incoming calls to CreateService() which 136 // will be used to satisfy any incoming calls to CreateService() which
134 // reference the given name. 137 // reference the given name.
135 // 138 //
136 // For in-process services, it is preferable to use |AddEmbeddedService()| as 139 // For in-process services, it is preferable to use |AddEmbeddedService()| as
137 // defined above. 140 // defined above.
138 virtual void AddServiceRequestHandler( 141 virtual void AddServiceRequestHandler(
139 const std::string& name, 142 const std::string& name,
140 const ServiceRequestHandler& handler) = 0; 143 const ServiceRequestHandler& handler) = 0;
141 }; 144 };
142 145
143 } // namespace content 146 } // namespace content
144 147
145 #endif // CONTENT_PUBLIC_COMMON_MOJO_SHELL_CONNECTION_H_ 148 #endif // CONTENT_PUBLIC_COMMON_SERVICE_MANAGER_CONNECTION_H_
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