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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_H_ | 5 #ifndef CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_H_ |
6 #define CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_H_ | 6 #define CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_H_ |
7 | 7 |
8 #include <queue> | 8 #include <queue> |
9 #include <set> | 9 #include <set> |
10 #include <string> | 10 #include <string> |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
14 #include "base/callback.h" | 14 #include "base/callback.h" |
15 #include "base/id_map.h" | 15 #include "base/id_map.h" |
16 #include "base/memory/scoped_ptr.h" | 16 #include "base/memory/scoped_ptr.h" |
17 #include "base/process.h" | 17 #include "base/process.h" |
18 #include "base/task.h" | 18 #include "base/task.h" |
19 #include "content/common/notification_observer.h" | 19 #include "content/common/notification_observer.h" |
20 #include "content/common/notification_registrar.h" | 20 #include "content/common/notification_registrar.h" |
21 #include "ipc/ipc_sync_channel.h" | 21 #include "ipc/ipc_sync_channel.h" |
22 | 22 |
23 class Profile; | 23 class Profile; |
24 class CommandLine; | 24 class CommandLine; |
25 | 25 |
26 namespace remoting { | |
27 struct ChromotingHostInfo; | |
28 } // namespace remoting | |
29 | |
30 // A ServiceProcessControl works as a portal between the service process and | 26 // A ServiceProcessControl works as a portal between the service process and |
31 // the browser process. | 27 // the browser process. |
32 // | 28 // |
33 // It is used to start and terminate the service process. It is also used | 29 // It is used to start and terminate the service process. It is also used |
34 // to send and receive IPC messages from the service process. | 30 // to send and receive IPC messages from the service process. |
35 // | 31 // |
36 // THREADING | 32 // THREADING |
37 // | 33 // |
38 // This class is accessed on the UI thread through some UI actions. It then | 34 // This class is accessed on the UI thread through some UI actions. It then |
39 // talks to the IPC channel on the IO thread. | 35 // talks to the IPC channel on the IO thread. |
40 class ServiceProcessControl : public IPC::Channel::Sender, | 36 class ServiceProcessControl : public IPC::Channel::Sender, |
41 public IPC::Channel::Listener, | 37 public IPC::Channel::Listener, |
42 public NotificationObserver { | 38 public NotificationObserver { |
43 public: | 39 public: |
44 typedef IDMap<ServiceProcessControl>::iterator iterator; | 40 typedef IDMap<ServiceProcessControl>::iterator iterator; |
45 typedef std::queue<IPC::Message> MessageQueue; | 41 typedef std::queue<IPC::Message> MessageQueue; |
46 typedef Callback1<const remoting::ChromotingHostInfo&>::Type | |
47 RemotingHostStatusHandler; | |
48 | |
49 // An interface for handling messages received from the service process. | |
50 class MessageHandler { | |
51 public: | |
52 virtual ~MessageHandler() {} | |
53 | |
54 // Called when we receive reply to remoting host status request. | |
55 virtual void OnRemotingHostInfo( | |
56 const remoting::ChromotingHostInfo& host_info) = 0; | |
57 }; | |
58 | 42 |
59 // Construct a ServiceProcessControl with |profile|.. | 43 // Construct a ServiceProcessControl with |profile|.. |
60 explicit ServiceProcessControl(Profile* profile); | 44 explicit ServiceProcessControl(Profile* profile); |
61 virtual ~ServiceProcessControl(); | 45 virtual ~ServiceProcessControl(); |
62 | 46 |
63 // Return the user profile associated with this service process. | 47 // Return the user profile associated with this service process. |
64 Profile* profile() const { return profile_; } | 48 Profile* profile() const { return profile_; } |
65 | 49 |
66 // Return true if this object is connected to the service. | 50 // Return true if this object is connected to the service. |
67 bool is_connected() const { return channel_.get() != NULL; } | 51 bool is_connected() const { return channel_.get() != NULL; } |
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88 // IPC::Channel::Sender implementation | 72 // IPC::Channel::Sender implementation |
89 virtual bool Send(IPC::Message* message); | 73 virtual bool Send(IPC::Message* message); |
90 | 74 |
91 // NotificationObserver implementation. | 75 // NotificationObserver implementation. |
92 virtual void Observe(NotificationType type, | 76 virtual void Observe(NotificationType type, |
93 const NotificationSource& source, | 77 const NotificationSource& source, |
94 const NotificationDetails& details); | 78 const NotificationDetails& details); |
95 | 79 |
96 // Message handlers | 80 // Message handlers |
97 void OnCloudPrintProxyIsEnabled(bool enabled, std::string email); | 81 void OnCloudPrintProxyIsEnabled(bool enabled, std::string email); |
98 void OnRemotingHostInfo(const remoting::ChromotingHostInfo& host_info); | |
99 | 82 |
100 // Send a shutdown message to the service process. IPC channel will be | 83 // Send a shutdown message to the service process. IPC channel will be |
101 // destroyed after calling this method. | 84 // destroyed after calling this method. |
102 // Return true if the message was sent. | 85 // Return true if the message was sent. |
103 bool Shutdown(); | 86 bool Shutdown(); |
104 | 87 |
105 // Send request for cloud print proxy status and the registered | 88 // Send request for cloud print proxy status and the registered |
106 // email address. The callback gets the information when received. | 89 // email address. The callback gets the information when received. |
107 bool GetCloudPrintProxyStatus( | 90 bool GetCloudPrintProxyStatus( |
108 Callback2<bool, std::string>::Type* cloud_print_status_callback); | 91 Callback2<bool, std::string>::Type* cloud_print_status_callback); |
109 | 92 |
110 // Send a message to enable the remoting service in the service process. | |
111 // Return true if the message was sent. | |
112 bool SetRemotingHostCredentials(const std::string& user, | |
113 const std::string& auth_token); | |
114 | |
115 bool EnableRemotingHost(); | |
116 bool DisableRemotingHost(); | |
117 | |
118 // Send request for current status of the remoting service. | |
119 // MessageHandler::OnRemotingHostInfo() will be called when remoting host | |
120 // status is available. | |
121 bool RequestRemotingHostStatus(); | |
122 | |
123 // Add a message handler for receiving messages from the service | |
124 // process. | |
125 void AddMessageHandler(MessageHandler* message_handler); | |
126 | |
127 // Remove a message handler from the list of message handlers. Must | |
128 // not be called from a message handler (i.e. while a message is | |
129 // being processed). | |
130 void RemoveMessageHandler(MessageHandler* message_handler); | |
131 | |
132 private: | 93 private: |
133 // This class is responsible for launching the service process on the | 94 // This class is responsible for launching the service process on the |
134 // PROCESS_LAUNCHER thread. | 95 // PROCESS_LAUNCHER thread. |
135 class Launcher | 96 class Launcher |
136 : public base::RefCountedThreadSafe<ServiceProcessControl::Launcher> { | 97 : public base::RefCountedThreadSafe<ServiceProcessControl::Launcher> { |
137 public: | 98 public: |
138 Launcher(ServiceProcessControl* process, CommandLine* cmd_line); | 99 Launcher(ServiceProcessControl* process, CommandLine* cmd_line); |
139 // Execute the command line to start the process asynchronously. | 100 // Execute the command line to start the process asynchronously. |
140 // After the comamnd is executed |task| is called with the process handle on | 101 // After the comamnd is executed |task| is called with the process handle on |
141 // the UI thread. | 102 // the UI thread. |
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186 TaskList connect_done_tasks_; | 147 TaskList connect_done_tasks_; |
187 // Callbacks that get invoked ONLY when the channel is successfully connected. | 148 // Callbacks that get invoked ONLY when the channel is successfully connected. |
188 TaskList connect_success_tasks_; | 149 TaskList connect_success_tasks_; |
189 // Callbacks that get invoked ONLY when there was a connection failure. | 150 // Callbacks that get invoked ONLY when there was a connection failure. |
190 TaskList connect_failure_tasks_; | 151 TaskList connect_failure_tasks_; |
191 | 152 |
192 // Callback that gets invoked when a status message is received from | 153 // Callback that gets invoked when a status message is received from |
193 // the cloud print proxy. | 154 // the cloud print proxy. |
194 scoped_ptr<Callback2<bool, std::string>::Type> cloud_print_status_callback_; | 155 scoped_ptr<Callback2<bool, std::string>::Type> cloud_print_status_callback_; |
195 | 156 |
196 // Handler for messages from service process. | |
197 std::set<MessageHandler*> message_handlers_; | |
198 | |
199 NotificationRegistrar registrar_; | 157 NotificationRegistrar registrar_; |
200 }; | 158 }; |
201 | 159 |
202 #endif // CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_H_ | 160 #endif // CHROME_BROWSER_SERVICE_SERVICE_PROCESS_CONTROL_H_ |
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