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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ | 5 #ifndef COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ |
6 #define COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ | 6 #define COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "base/message_loop/message_loop.h" | 9 #include "base/message_loop/message_loop.h" |
10 #include "components/scheduler/child/child_scheduler.h" | 10 #include "components/scheduler/child/child_scheduler.h" |
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146 | 146 |
147 // Decrements the timer queue suspension count and re-enables the timer queue | 147 // Decrements the timer queue suspension count and re-enables the timer queue |
148 // if the suspension count is zero and the current schduler policy allows it. | 148 // if the suspension count is zero and the current schduler policy allows it. |
149 virtual void ResumeTimerQueue() = 0; | 149 virtual void ResumeTimerQueue() = 0; |
150 | 150 |
151 // Sets whether to allow suspension of timers after the backgrounded signal is | 151 // Sets whether to allow suspension of timers after the backgrounded signal is |
152 // received via OnRendererBackgrounded. Defaults to disabled. | 152 // received via OnRendererBackgrounded. Defaults to disabled. |
153 virtual void SetTimerQueueSuspensionWhenBackgroundedEnabled(bool enabled) = 0; | 153 virtual void SetTimerQueueSuspensionWhenBackgroundedEnabled(bool enabled) = 0; |
154 | 154 |
155 // Returns a double which is the number of seconds since epoch (Jan 1, 1970). | 155 // Returns a double which is the number of seconds since epoch (Jan 1, 1970). |
156 virtual double CurrentTimeSeconds() const = 0; | 156 // This may represent either the real time, or a virtual time depending on |
| 157 // whether or not the system is currently running a task associated with a |
| 158 // virtual time domain or real time domain. |
| 159 virtual double VirtualTimeSeconds() const = 0; |
157 | 160 |
158 // Returns a microsecond resolution platform dependant time source. | 161 // Returns a microsecond resolution platform dependant time source. |
159 virtual double MonotonicallyIncreasingTimeSeconds() const = 0; | 162 // This may represent either the real time, or a virtual time depending on |
| 163 // whether or not the system is currently running a task associated with a |
| 164 // virtual time domain or real time domain. |
| 165 virtual double MonotonicallyIncreasingVirtualTimeSeconds() const = 0; |
160 | 166 |
161 protected: | 167 protected: |
162 RendererScheduler(); | 168 RendererScheduler(); |
163 DISALLOW_COPY_AND_ASSIGN(RendererScheduler); | 169 DISALLOW_COPY_AND_ASSIGN(RendererScheduler); |
164 }; | 170 }; |
165 | 171 |
166 } // namespace scheduler | 172 } // namespace scheduler |
167 | 173 |
168 #endif // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ | 174 #endif // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ |
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