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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "base/trace_event/persistent_async_event.h" | |
6 | |
7 #include "base/macros.h" | |
8 #include "base/time/time.h" | |
9 #include "base/trace_event/trace_event.h" | |
10 | |
11 namespace base { | |
12 | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
nit: remove this extra line
alexandermont
2016/09/15 21:05:12
Done
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13 namespace trace_event { | |
14 | |
15 PersistentAsyncEvent::PersistentAsyncEvent(PersistentAsyncEvent::Type type, | |
16 const char* category, const char* event_name): | |
17 active_(false), | |
18 category_(category), | |
19 event_name_(event_name), | |
20 weak_factory_(this) { | |
21 DCHECK(thread_checker_.CalledOnValidThread()); | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
remove this line, as it is tautological.
The threa
alexandermont
2016/09/15 21:05:13
Done
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22 base::trace_event::TraceLog::GetInstance()->AddAsyncEnabledStateObserver( | |
23 weak_factory_.GetWeakPtr()); | |
24 } | |
25 | |
26 PersistentAsyncEvent::~PersistentAsyncEvent() { | |
27 DCHECK(thread_checker_.CalledOnValidThread()); | |
28 base::trace_event::TraceLog::GetInstance()->RemoveAsyncEnabledStateObserver( | |
29 this); | |
30 } | |
31 | |
32 void PersistentAsyncEvent::Begin() { | |
33 DCHECK(thread_checker_.CalledOnValidThread()); | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
oh I didn't think about enforce begin/end to be al
alexandermont
2016/09/15 21:05:13
okay
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34 // We need to use the COPY version of the macro because the category and | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
nit: add a line between comments and the previous
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35 // event names aren't string literals; they're passed in through | |
36 // the constructor. | |
37 TRACE_EVENT_COPY_ASYNC_BEGIN0(category_, event_name_, | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
I dupe my previou (unresolved) question:
Why _COPY
alexandermont
2016/09/15 21:05:13
Fixed
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38 static_cast<void*>(this)); | |
39 active_ = true; | |
40 start_time_ = base::TimeTicks::Now(); | |
41 } | |
42 | |
43 void PersistentAsyncEvent::End() { | |
44 DCHECK(thread_checker_.CalledOnValidThread()); | |
45 TRACE_EVENT_COPY_ASYNC_END0(category_, event_name_, static_cast<void*>(this)); | |
46 active_ = false; | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
just clear start_Time_?
alexandermont
2016/09/15 21:05:13
Done
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47 } | |
48 | |
49 void PersistentAsyncEvent::OnTraceLogEnabled() { | |
50 DCHECK(thread_checker_.CalledOnValidThread()); | |
51 if (active_) | |
52 TRACE_EVENT_COPY_ASYNC_BEGIN_WITH_TIMESTAMP0( | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
ditto about s/_COPY_//
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53 category_, event_name_, static_cast<void*>(this), | |
54 start_time_.ToInternalValue()); | |
Primiano Tucci (use gerrit)
2016/09/15 10:08:29
I think here you want InMicroseconds() not ToInter
alexandermont
2016/09/15 21:05:12
This is a TimeTicks value, not a TimeDelta value.
Primiano Tucci (use gerrit)
2016/09/15 22:06:25
ah right, my bad. do whatever we do for the other
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55 } | |
56 | |
57 void PersistentAsyncEvent::OnTraceLogDisabled() {} | |
58 | |
59 } // namespace trace_event | |
60 } // namespace base | |
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