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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 BASE_MESSAGE_PUMP_LIBEVENT_H_ | 5 #ifndef BASE_MESSAGE_PUMP_LIBEVENT_H_ |
| 6 #define BASE_MESSAGE_PUMP_LIBEVENT_H_ | 6 #define BASE_MESSAGE_PUMP_LIBEVENT_H_ |
| 7 | 7 |
| 8 #include "base/message_pump.h" | 8 #include "base/message_pump.h" |
| 9 #include "base/time.h" | 9 #include "base/time.h" |
| 10 | 10 |
| (...skipping 29 matching lines...) Expand all Loading... |
| 40 void WatchSocket(int socket, short interest_mask, event* e, Watcher*); | 40 void WatchSocket(int socket, short interest_mask, event* e, Watcher*); |
| 41 | 41 |
| 42 // Stop watching a socket. | 42 // Stop watching a socket. |
| 43 // Event was previously initialized by WatchSocket. | 43 // Event was previously initialized by WatchSocket. |
| 44 void UnwatchSocket(event* e); | 44 void UnwatchSocket(event* e); |
| 45 | 45 |
| 46 // MessagePump methods: | 46 // MessagePump methods: |
| 47 virtual void Run(Delegate* delegate); | 47 virtual void Run(Delegate* delegate); |
| 48 virtual void Quit(); | 48 virtual void Quit(); |
| 49 virtual void ScheduleWork(); | 49 virtual void ScheduleWork(); |
| 50 virtual void ScheduleDelayedWork(const Time& delayed_work_time); | 50 virtual void ScheduleDelayedWork(const base::Time& delayed_work_time); |
| 51 | 51 |
| 52 private: | 52 private: |
| 53 | 53 |
| 54 // Risky part of constructor. Returns true on success. | 54 // Risky part of constructor. Returns true on success. |
| 55 bool Init(); | 55 bool Init(); |
| 56 | 56 |
| 57 // This flag is set to false when Run should return. | 57 // This flag is set to false when Run should return. |
| 58 bool keep_running_; | 58 bool keep_running_; |
| 59 | 59 |
| 60 // This flag is set when inside Run. | 60 // This flag is set when inside Run. |
| 61 bool in_run_; | 61 bool in_run_; |
| 62 | 62 |
| 63 // The time at which we should call DoDelayedWork. | 63 // The time at which we should call DoDelayedWork. |
| 64 Time delayed_work_time_; | 64 base::Time delayed_work_time_; |
| 65 | 65 |
| 66 // Libevent dispatcher. Watches all sockets registered with it, and sends | 66 // Libevent dispatcher. Watches all sockets registered with it, and sends |
| 67 // readiness callbacks when a socket is ready for I/O. | 67 // readiness callbacks when a socket is ready for I/O. |
| 68 event_base* event_base_; | 68 event_base* event_base_; |
| 69 | 69 |
| 70 // Called by libevent to tell us a registered socket is ready | 70 // Called by libevent to tell us a registered socket is ready |
| 71 static void OnReadinessNotification(int socket, short flags, void* context); | 71 static void OnReadinessNotification(int socket, short flags, void* context); |
| 72 | 72 |
| 73 // Unix pipe used to implement ScheduleWork() | 73 // Unix pipe used to implement ScheduleWork() |
| 74 // ... callback; called by libevent inside Run() when pipe is ready to read | 74 // ... callback; called by libevent inside Run() when pipe is ready to read |
| 75 static void OnWakeup(int socket, short flags, void* context); | 75 static void OnWakeup(int socket, short flags, void* context); |
| 76 // ... write end; ScheduleWork() writes a single byte to it | 76 // ... write end; ScheduleWork() writes a single byte to it |
| 77 int wakeup_pipe_in_; | 77 int wakeup_pipe_in_; |
| 78 // ... read end; OnWakeup reads it and then breaks Run() out of its sleep | 78 // ... read end; OnWakeup reads it and then breaks Run() out of its sleep |
| 79 int wakeup_pipe_out_; | 79 int wakeup_pipe_out_; |
| 80 // ... libevent wrapper for read end | 80 // ... libevent wrapper for read end |
| 81 event* wakeup_event_; | 81 event* wakeup_event_; |
| 82 | 82 |
| 83 DISALLOW_COPY_AND_ASSIGN(MessagePumpLibevent); | 83 DISALLOW_COPY_AND_ASSIGN(MessagePumpLibevent); |
| 84 }; | 84 }; |
| 85 | 85 |
| 86 } // namespace base | 86 } // namespace base |
| 87 | 87 |
| 88 #endif // BASE_MESSAGE_PUMP_LIBEVENT_H_ | 88 #endif // BASE_MESSAGE_PUMP_LIBEVENT_H_ |
| 89 | 89 |
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