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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_EXTENSIONS_API_SOCKETS_TCP_TCP_SOCKET_EVENT_DISPATCHER_H_ | |
6 #define CHROME_BROWSER_EXTENSIONS_API_SOCKETS_TCP_TCP_SOCKET_EVENT_DISPATCHER_H_ | |
7 | |
8 #include "chrome/browser/extensions/api/sockets_tcp/sockets_tcp_api.h" | |
9 #include "extensions/browser/api/api_resource_manager.h" | |
10 | |
11 namespace content { | |
12 class BrowserContext; | |
13 } | |
14 | |
15 namespace extensions { | |
16 struct Event; | |
17 class ResumableTCPSocket; | |
18 } | |
19 | |
20 namespace extensions { | |
21 namespace api { | |
22 | |
23 // Dispatch events related to "sockets.tcp" sockets from callback on native | |
24 // socket instances. There is one instance per profile. | |
25 class TCPSocketEventDispatcher | |
26 : public BrowserContextKeyedAPI, | |
27 public base::SupportsWeakPtr<TCPSocketEventDispatcher> { | |
28 public: | |
29 explicit TCPSocketEventDispatcher(content::BrowserContext* context); | |
30 virtual ~TCPSocketEventDispatcher(); | |
31 | |
32 // Socket is active, start receving from it. | |
33 void OnSocketConnect(const std::string& extension_id, int socket_id); | |
34 | |
35 // Socket is active again, start receiving data from it. | |
36 void OnSocketResume(const std::string& extension_id, int socket_id); | |
37 | |
38 // BrowserContextKeyedAPI implementation. | |
39 static BrowserContextKeyedAPIFactory<TCPSocketEventDispatcher>* | |
40 GetFactoryInstance(); | |
41 | |
42 // Convenience method to get the SocketEventDispatcher for a profile. | |
43 static TCPSocketEventDispatcher* Get(content::BrowserContext* context); | |
44 | |
45 private: | |
46 typedef ApiResourceManager<ResumableTCPSocket>::ApiResourceData SocketData; | |
47 friend class BrowserContextKeyedAPIFactory<TCPSocketEventDispatcher>; | |
48 // BrowserContextKeyedAPI implementation. | |
49 static const char* service_name() { return "TCPSocketEventDispatcher"; } | |
50 static const bool kServiceHasOwnInstanceInIncognito = true; | |
51 static const bool kServiceIsNULLWhileTesting = true; | |
52 | |
53 // base::Bind supports methods with up to 6 parameters. ReadParams is used | |
54 // as a workaround that limitation for invoking StartReceive. | |
55 struct ReadParams { | |
56 ReadParams(); | |
57 ~ReadParams(); | |
58 | |
59 content::BrowserThread::ID thread_id; | |
60 void* browser_context_id; | |
61 std::string extension_id; | |
62 scoped_refptr<SocketData> sockets; | |
63 int socket_id; | |
64 }; | |
65 | |
66 // Start a receive and register a callback. | |
67 void StartSocketRead(const std::string& extension_id, int socket_id); | |
68 | |
69 // Start a receive and register a callback. | |
70 static void StartRead(const ReadParams& params); | |
71 | |
72 // Called when socket receive data. | |
73 static void ReadCallback(const ReadParams& params, | |
74 int bytes_read, | |
75 scoped_refptr<net::IOBuffer> io_buffer); | |
76 | |
77 // Post an extension event from IO to UI thread | |
78 static void PostEvent(const ReadParams& params, scoped_ptr<Event> event); | |
79 | |
80 // Dispatch an extension event on to EventRouter instance on UI thread. | |
81 static void DispatchEvent(void* browser_context_id, | |
82 const std::string& extension_id, | |
83 scoped_ptr<Event> event); | |
84 | |
85 // Usually IO thread (except for unit testing). | |
86 content::BrowserThread::ID thread_id_; | |
87 content::BrowserContext* const browser_context_; | |
88 scoped_refptr<SocketData> sockets_; | |
89 }; | |
90 | |
91 } // namespace api | |
92 } // namespace extensions | |
93 | |
94 #endif // CHROME_BROWSER_EXTENSIONS_API_SOCKETS_TCP_TCP_SOCKET_EVENT_DISPATCHER
_H_ | |
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