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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 WebScheduler_h | 5 #ifndef WebScheduler_h |
| 6 #define WebScheduler_h | 6 #define WebScheduler_h |
| 7 | 7 |
| 8 #include "WebCommon.h" |
| 9 |
| 8 namespace blink { | 10 namespace blink { |
| 9 | 11 |
| 10 class WebTraceLocation; | 12 class WebTraceLocation; |
| 11 | 13 |
| 12 // This class is used to submit tasks and pass other information from Blink to | 14 // This class is used to submit tasks and pass other information from Blink to |
| 13 // the platform's scheduler. | 15 // the platform's scheduler. |
| 14 class WebScheduler { | 16 class BLINK_PLATFORM_EXPORT WebScheduler { |
| 15 public: | 17 public: |
| 16 virtual ~WebScheduler() { } | 18 virtual ~WebScheduler() { } |
| 17 | 19 |
| 18 // An IdleTask is passed a deadline in CLOCK_MONOTONIC seconds and is | 20 // An IdleTask is passed a deadline in CLOCK_MONOTONIC seconds and is |
| 19 // expected to complete before this deadline. | 21 // expected to complete before this deadline. |
| 20 class IdleTask { | 22 class IdleTask { |
| 21 public: | 23 public: |
| 22 virtual ~IdleTask() { } | 24 virtual ~IdleTask() { } |
| 23 virtual void run(double deadlineSeconds) = 0; | 25 virtual void run(double deadlineSeconds) = 0; |
| 24 }; | 26 }; |
| (...skipping 10 matching lines...) Expand all Loading... |
| 35 // Schedule an idle task to run the Blink main thread. For non-critical | 37 // Schedule an idle task to run the Blink main thread. For non-critical |
| 36 // tasks which may be reordered relative to other task types and may be | 38 // tasks which may be reordered relative to other task types and may be |
| 37 // starved for an arbitrarily long time if no idle time is available. | 39 // starved for an arbitrarily long time if no idle time is available. |
| 38 // Takes ownership of |IdleTask|. Can be called from any thread. | 40 // Takes ownership of |IdleTask|. Can be called from any thread. |
| 39 virtual void postIdleTask(const WebTraceLocation&, IdleTask*) { } | 41 virtual void postIdleTask(const WebTraceLocation&, IdleTask*) { } |
| 40 }; | 42 }; |
| 41 | 43 |
| 42 } // namespace blink | 44 } // namespace blink |
| 43 | 45 |
| 44 #endif // WebScheduler_h | 46 #endif // WebScheduler_h |
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