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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 #ifndef BASE_TRACE_EVENT_PERSISTENT_ASYNC_H_ | |
6 #define BASE_TRACE_EVENT_PERSISTENT_ASYNC_H_ | |
7 | |
8 #include "base/macros.h" | |
9 #include "base/trace_event/trace_event.h" | |
10 #include <string> | |
11 #include <ctime> | |
12 | |
13 namespace base { | |
14 namespace trace_event { | |
15 | |
16 // Note: The categories and event names must have application lifetime | |
charliea (OOO until 10-5)
2016/07/19 20:27:18
Take a look at https://cs.chromium.org/chromium/sr
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17 // (strings or literals), as documented in trace_event_common.h. | |
18 // Thus, we must makes subclasses that have hard-coded categories | |
19 // and event names, rather than passing these into the PersistentAsyncEvent. | |
20 | |
21 class BASE_EXPORT PersistentAsyncEvent | |
22 : public trace_event::TraceLog::EnabledStateObserver { | |
23 public: | |
benjhayden
2016/08/10 18:30:00
These should only be indented by 1 space.
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24 PersistentAsyncEvent(); | |
25 ~PersistentAsyncEvent() override; | |
26 | |
27 void Start(std::string param_value = ""); | |
28 void Stop(std::string param_value = ""); | |
29 | |
30 virtual void RecordStartEvent(); | |
31 virtual void RecordStartEventWithOffset(double offset); | |
32 virtual void RecordStopEvent(); | |
33 void OnTraceLogEnabled() override; | |
34 void OnTraceLogDisabled() override; | |
35 | |
36 protected: | |
benjhayden
2016/08/10 18:30:00
only indent by 1 space
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37 std::string param_value_; | |
38 | |
39 bool active_; | |
40 timeval start_time_; | |
41 }; | |
42 | |
43 } | |
benjhayden
2016/08/10 18:30:00
} // namespace trace_event
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44 } | |
benjhayden
2016/08/10 18:30:00
} // namespace base
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45 | |
46 #endif // BASE_TRACE_EVENT_PERSISTENT_ASYNC_H_ | |
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