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Side by Side Diff: Source/platform/scheduler/TracedTask.h

Issue 595023002: Implement idle task scheduling. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Fix whitespace Created 6 years, 2 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 TracedTask_h 5 #ifndef TracedTask_h
6 #define TracedTask_h 6 #define TracedTask_h
7 7
8 #include "platform/Task.h" 8 #include "platform/Task.h"
9 #include "platform/TraceEvent.h" 9 #include "platform/TraceEvent.h"
10 #include "platform/TraceLocation.h" 10 #include "platform/TraceLocation.h"
11 11
12 namespace blink { 12 namespace blink {
13 13
14 #ifdef MANGLE_COMPILES_ON_WIN_OK 14 #ifdef MANGLE_COMPILES_ON_WIN_OK
15 // TODO: Once win version compiles correctly when using TRACE_ID_MANGLE remove 15 // TODO: Once win version compiles correctly when using TRACE_ID_MANGLE remove
16 // the ifdef to always mangle 16 // the ifdef to always mangle
17 #define MANGLE(id) TRACE_ID_MANGLE(id) 17 #define MANGLE(id) TRACE_ID_MANGLE(id)
18 #else 18 #else
19 #define MANGLE(id) (id) 19 #define MANGLE(id) (id)
20 #endif 20 #endif
21 21
22 class TracedTask { 22 class TracedTask {
23 public: 23 public:
24 typedef Function<void()> Task; 24 virtual void run() const = 0;
25 virtual ~TracedTask();
25 26
26 void run() const; 27 protected:
28 TracedTask(const TraceLocation&, const char* traceName);
29 TraceLocation getLocation() const;
30 const char* getTraceName() const;
31 void endFlowTraceEvent() const;
27 32
28 private: 33 private:
29 friend class Scheduler;
30 TracedTask(const Task&, const TraceLocation&, const char* traceName);
31
32 // Declared volatile as it is atomically incremented. 34 // Declared volatile as it is atomically incremented.
33 static volatile int s_nextFlowTraceID; 35 static volatile int s_nextFlowTraceID;
34 36
35 uint64_t m_flowTraceID; 37 uint64_t m_flowTraceID;
36 Task m_task;
37 TraceLocation m_location; 38 TraceLocation m_location;
38 const char* m_traceName; 39 const char* m_traceName;
39 }; 40 };
40 41
42 class TracedStandardTask : public TracedTask {
43 public:
44 typedef Function<void()> Task;
45
46 virtual void run() const;
47 virtual ~TracedStandardTask();
48
49 private:
50 friend class Scheduler;
51
52 TracedStandardTask(const Task&, const TraceLocation&, const char* traceName) ;
53
54 Task m_task;
55 };
56
57 class TracedIdleTask : public TracedTask {
58 public:
59 typedef Function<void(double deadlineSeconds)> IdleTask;
60
61 virtual void run() const;
62 virtual ~TracedIdleTask();
63
64 private:
65 friend class Scheduler;
66
67 TracedIdleTask(const IdleTask&, const TraceLocation&, const char* traceName) ;
68
69 IdleTask m_idleTask;
70 };
71
41 } // namespace blink 72 } // namespace blink
42 73
43 #endif // TracedTask_h 74 #endif // TracedTask_h
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