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Side by Side Diff: jingle/glue/thread_wrapper.h

Issue 450463002: Update webrtc&libjingle 6774:6825. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 6 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 JINGLE_GLUE_THREAD_WRAPPER_H_ 5 #ifndef JINGLE_GLUE_THREAD_WRAPPER_H_
6 #define JINGLE_GLUE_THREAD_WRAPPER_H_ 6 #define JINGLE_GLUE_THREAD_WRAPPER_H_
7 7
8 #include <list> 8 #include <list>
9 #include <map> 9 #include <map>
10 10
11 #include "base/compiler_specific.h" 11 #include "base/compiler_specific.h"
12 #include "base/message_loop/message_loop.h" 12 #include "base/message_loop/message_loop.h"
13 #include "base/synchronization/lock.h" 13 #include "base/synchronization/lock.h"
14 #include "base/synchronization/waitable_event.h" 14 #include "base/synchronization/waitable_event.h"
15 #include "third_party/libjingle/source/talk/base/thread.h" 15 #include "third_party/webrtc/base/thread.h"
16 16
17 namespace jingle_glue { 17 namespace jingle_glue {
18 18
19 // JingleThreadWrapper implements talk_base::Thread interface on top of 19 // JingleThreadWrapper implements rtc::Thread interface on top of
20 // Chromium's SingleThreadTaskRunner interface. Currently only the bare minimum 20 // Chromium's SingleThreadTaskRunner interface. Currently only the bare minimum
21 // that is used by P2P part of libjingle is implemented. There are two ways to 21 // that is used by P2P part of libjingle is implemented. There are two ways to
22 // create this object: 22 // create this object:
23 // 23 //
24 // - Call EnsureForCurrentMessageLoop(). This approach works only on threads 24 // - Call EnsureForCurrentMessageLoop(). This approach works only on threads
25 // that have MessageLoop In this case JingleThreadWrapper deletes itself 25 // that have MessageLoop In this case JingleThreadWrapper deletes itself
26 // automatically when MessageLoop is destroyed. 26 // automatically when MessageLoop is destroyed.
27 // - Using JingleThreadWrapper() constructor. In this case the creating code 27 // - Using JingleThreadWrapper() constructor. In this case the creating code
28 // must pass a valid task runner for the current thread and also delete the 28 // must pass a valid task runner for the current thread and also delete the
29 // wrapper later. 29 // wrapper later.
30 class JingleThreadWrapper : public base::MessageLoop::DestructionObserver, 30 class JingleThreadWrapper : public base::MessageLoop::DestructionObserver,
31 public talk_base::Thread { 31 public rtc::Thread {
32 public: 32 public:
33 // Create JingleThreadWrapper for the current thread if it hasn't been created 33 // Create JingleThreadWrapper for the current thread if it hasn't been created
34 // yet. The thread wrapper is destroyed automatically when the current 34 // yet. The thread wrapper is destroyed automatically when the current
35 // MessageLoop is destroyed. 35 // MessageLoop is destroyed.
36 static void EnsureForCurrentMessageLoop(); 36 static void EnsureForCurrentMessageLoop();
37 37
38 // Returns thread wrapper for the current thread. NULL is returned 38 // Returns thread wrapper for the current thread. NULL is returned
39 // if EnsureForCurrentMessageLoop() has never been called for this 39 // if EnsureForCurrentMessageLoop() has never been called for this
40 // thread. 40 // thread.
41 static JingleThreadWrapper* current(); 41 static JingleThreadWrapper* current();
42 42
43 explicit JingleThreadWrapper( 43 explicit JingleThreadWrapper(
44 scoped_refptr<base::SingleThreadTaskRunner> task_runner); 44 scoped_refptr<base::SingleThreadTaskRunner> task_runner);
45 virtual ~JingleThreadWrapper(); 45 virtual ~JingleThreadWrapper();
46 46
47 // Sets whether the thread can be used to send messages 47 // Sets whether the thread can be used to send messages
48 // synchronously to another thread using Send() method. Set to false 48 // synchronously to another thread using Send() method. Set to false
49 // by default to avoid potential jankiness when Send() used on 49 // by default to avoid potential jankiness when Send() used on
50 // renderer thread. It should be set explicitly for threads that 50 // renderer thread. It should be set explicitly for threads that
51 // need to call Send() for other threads. 51 // need to call Send() for other threads.
52 void set_send_allowed(bool allowed) { send_allowed_ = allowed; } 52 void set_send_allowed(bool allowed) { send_allowed_ = allowed; }
53 53
54 // MessageLoop::DestructionObserver implementation. 54 // MessageLoop::DestructionObserver implementation.
55 virtual void WillDestroyCurrentMessageLoop() OVERRIDE; 55 virtual void WillDestroyCurrentMessageLoop() OVERRIDE;
56 56
57 // talk_base::MessageQueue overrides. 57 // rtc::MessageQueue overrides.
58 virtual void Post(talk_base::MessageHandler *phandler, 58 virtual void Post(rtc::MessageHandler *phandler,
59 uint32 id, 59 uint32 id,
60 talk_base::MessageData *pdata, 60 rtc::MessageData *pdata,
61 bool time_sensitive) OVERRIDE; 61 bool time_sensitive) OVERRIDE;
62 virtual void PostDelayed(int delay_ms, 62 virtual void PostDelayed(int delay_ms,
63 talk_base::MessageHandler* handler, 63 rtc::MessageHandler* handler,
64 uint32 id, 64 uint32 id,
65 talk_base::MessageData* data) OVERRIDE; 65 rtc::MessageData* data) OVERRIDE;
66 virtual void Clear(talk_base::MessageHandler* handler, 66 virtual void Clear(rtc::MessageHandler* handler,
67 uint32 id, 67 uint32 id,
68 talk_base::MessageList* removed) OVERRIDE; 68 rtc::MessageList* removed) OVERRIDE;
69 virtual void Send(talk_base::MessageHandler *handler, 69 virtual void Send(rtc::MessageHandler *handler,
70 uint32 id, 70 uint32 id,
71 talk_base::MessageData *data) OVERRIDE; 71 rtc::MessageData *data) OVERRIDE;
72 72
73 // Following methods are not supported.They are overriden just to 73 // Following methods are not supported.They are overriden just to
74 // ensure that they are not called (each of them contain NOTREACHED 74 // ensure that they are not called (each of them contain NOTREACHED
75 // in the body). Some of this methods can be implemented if it 75 // in the body). Some of this methods can be implemented if it
76 // becomes neccessary to use libjingle code that calls them. 76 // becomes neccessary to use libjingle code that calls them.
77 virtual void Quit() OVERRIDE; 77 virtual void Quit() OVERRIDE;
78 virtual bool IsQuitting() OVERRIDE; 78 virtual bool IsQuitting() OVERRIDE;
79 virtual void Restart() OVERRIDE; 79 virtual void Restart() OVERRIDE;
80 virtual bool Get(talk_base::Message* message, 80 virtual bool Get(rtc::Message* message,
81 int delay_ms, 81 int delay_ms,
82 bool process_io) OVERRIDE; 82 bool process_io) OVERRIDE;
83 virtual bool Peek(talk_base::Message* message, 83 virtual bool Peek(rtc::Message* message,
84 int delay_ms) OVERRIDE; 84 int delay_ms) OVERRIDE;
85 virtual void PostAt(uint32 timestamp, 85 virtual void PostAt(uint32 timestamp,
86 talk_base::MessageHandler* handler, 86 rtc::MessageHandler* handler,
87 uint32 id, 87 uint32 id,
88 talk_base::MessageData* data) OVERRIDE; 88 rtc::MessageData* data) OVERRIDE;
89 virtual void Dispatch(talk_base::Message* message) OVERRIDE; 89 virtual void Dispatch(rtc::Message* message) OVERRIDE;
90 virtual void ReceiveSends() OVERRIDE; 90 virtual void ReceiveSends() OVERRIDE;
91 virtual int GetDelay() OVERRIDE; 91 virtual int GetDelay() OVERRIDE;
92 92
93 // talk_base::Thread overrides. 93 // rtc::Thread overrides.
94 virtual void Stop() OVERRIDE; 94 virtual void Stop() OVERRIDE;
95 virtual void Run() OVERRIDE; 95 virtual void Run() OVERRIDE;
96 96
97 private: 97 private:
98 typedef std::map<int, talk_base::Message> MessagesQueue; 98 typedef std::map<int, rtc::Message> MessagesQueue;
99 struct PendingSend; 99 struct PendingSend;
100 100
101 void PostTaskInternal( 101 void PostTaskInternal(
102 int delay_ms, talk_base::MessageHandler* handler, 102 int delay_ms, rtc::MessageHandler* handler,
103 uint32 message_id, talk_base::MessageData* data); 103 uint32 message_id, rtc::MessageData* data);
104 void RunTask(int task_id); 104 void RunTask(int task_id);
105 void ProcessPendingSends(); 105 void ProcessPendingSends();
106 106
107 // Task runner used to execute messages posted on this thread. 107 // Task runner used to execute messages posted on this thread.
108 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; 108 scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
109 109
110 bool send_allowed_; 110 bool send_allowed_;
111 111
112 // |lock_| must be locked when accessing |messages_|. 112 // |lock_| must be locked when accessing |messages_|.
113 base::Lock lock_; 113 base::Lock lock_;
114 int last_task_id_; 114 int last_task_id_;
115 MessagesQueue messages_; 115 MessagesQueue messages_;
116 std::list<PendingSend*> pending_send_messages_; 116 std::list<PendingSend*> pending_send_messages_;
117 base::WaitableEvent pending_send_event_; 117 base::WaitableEvent pending_send_event_;
118 118
119 base::WeakPtr<JingleThreadWrapper> weak_ptr_; 119 base::WeakPtr<JingleThreadWrapper> weak_ptr_;
120 base::WeakPtrFactory<JingleThreadWrapper> weak_ptr_factory_; 120 base::WeakPtrFactory<JingleThreadWrapper> weak_ptr_factory_;
121 121
122 DISALLOW_COPY_AND_ASSIGN(JingleThreadWrapper); 122 DISALLOW_COPY_AND_ASSIGN(JingleThreadWrapper);
123 }; 123 };
124 124
125 } // namespace jingle_glue 125 } // namespace jingle_glue
126 126
127 #endif // JINGLE_GLUE_THREAD_WRAPPER_H_ 127 #endif // JINGLE_GLUE_THREAD_WRAPPER_H_
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