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Side by Side Diff: public/platform/WebScheduler.h

Issue 876623002: Adds a CancellableTaskFactory and exposes postLoadingTasks to Blink (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 5 years, 11 months ago
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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 "public/platform/WebThread.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 WebScheduler {
15 public: 17 public:
16 virtual ~WebScheduler() { } 18 virtual ~WebScheduler() { }
17 19
(...skipping 12 matching lines...) Expand all
30 // Returns true if there is high priority work pending on the main thread 32 // Returns true if there is high priority work pending on the main thread
31 // and the caller should yield to let the scheduler service that work. 33 // and the caller should yield to let the scheduler service that work.
32 // Must be called on the main thread. 34 // Must be called on the main thread.
33 virtual bool shouldYieldForHighPriorityWork() { return false; } 35 virtual bool shouldYieldForHighPriorityWork() { return false; }
34 36
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*) { }
42
43 // Schedule a loading task to be run on the Blink main thread. Loading
44 // tasks usually have the default priority, but may be deprioritised
45 // when the user is interacting with the device.
46 // Takes ownership of |IdleTask|. Can be called from any thread.
jochen (gone - plz use gerrit) 2015/01/26 15:53:31 nit. WebThread::Task instead of IdleTask
alex clarke (OOO till 29th) 2015/01/26 17:00:45 Done.
47 virtual void postLoadingTask(const WebTraceLocation&, WebThread::Task*) { }
40 }; 48 };
41 49
42 } // namespace blink 50 } // namespace blink
43 51
44 #endif // WebScheduler_h 52 #endif // WebScheduler_h
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