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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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_BROWSER_MESSAGE_PORT_SERVICE_H_ | 5 #ifndef CONTENT_BROWSER_MESSAGE_PORT_SERVICE_H_ |
6 #define CONTENT_BROWSER_MESSAGE_PORT_SERVICE_H_ | 6 #define CONTENT_BROWSER_MESSAGE_PORT_SERVICE_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <utility> | 9 #include <utility> |
10 #include <vector> | 10 #include <vector> |
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60 // code doing that isn't able to immediately update the message port with a | 60 // code doing that isn't able to immediately update the message port with a |
61 // new filter and routing_id. This queues up all messages sent to this port | 61 // new filter and routing_id. This queues up all messages sent to this port |
62 // until later ReleaseMessages is called for this port (this will happen | 62 // until later ReleaseMessages is called for this port (this will happen |
63 // automatically as soon as a WebMessagePortChannelImpl instance is created | 63 // automatically as soon as a WebMessagePortChannelImpl instance is created |
64 // for this port in the renderer. The browser side code is still responsible | 64 // for this port in the renderer. The browser side code is still responsible |
65 // for updating the port with a new filter before that happens. If ultimately | 65 // for updating the port with a new filter before that happens. If ultimately |
66 // transfering the port to a new process fails, ClosePort should be called to | 66 // transfering the port to a new process fails, ClosePort should be called to |
67 // clean up the port. | 67 // clean up the port. |
68 void HoldMessages(int message_port_id); | 68 void HoldMessages(int message_port_id); |
69 | 69 |
| 70 // Returns true if messages for a message port are on hold. |
| 71 bool AreMessagesHeld(int message_port_id); |
| 72 |
70 // Closes and cleans up the message port. | 73 // Closes and cleans up the message port. |
71 void ClosePort(int message_port_id); | 74 void ClosePort(int message_port_id); |
72 | 75 |
73 void OnMessagePortDelegateClosing(MessagePortDelegate* filter); | 76 void OnMessagePortDelegateClosing(MessagePortDelegate* filter); |
74 | 77 |
75 // Attempts to send the queued messages for a message port. | 78 // Attempts to send the queued messages for a message port. |
76 void SendQueuedMessagesIfPossible(int message_port_id); | 79 void SendQueuedMessagesIfPossible(int message_port_id); |
77 | 80 |
78 private: | 81 private: |
79 friend struct base::DefaultSingletonTraits<MessagePortService>; | 82 friend struct base::DefaultSingletonTraits<MessagePortService>; |
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96 | 99 |
97 // We need globally unique identifiers for each message port. | 100 // We need globally unique identifiers for each message port. |
98 int next_message_port_id_; | 101 int next_message_port_id_; |
99 | 102 |
100 DISALLOW_COPY_AND_ASSIGN(MessagePortService); | 103 DISALLOW_COPY_AND_ASSIGN(MessagePortService); |
101 }; | 104 }; |
102 | 105 |
103 } // namespace content | 106 } // namespace content |
104 | 107 |
105 #endif // CONTENT_BROWSER_MESSAGE_PORT_SERVICE_H_ | 108 #endif // CONTENT_BROWSER_MESSAGE_PORT_SERVICE_H_ |
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