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counterAccumulator.h
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2 // Copyright 2018 Pixar
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24 
25 #ifndef TRACE_COUNTER_ACCUMULATOR_H
26 #define TRACE_COUNTER_ACCUMULATOR_H
27 
28 #include "pxr/pxr.h"
29 
30 #include "pxr/base/trace/api.h"
31 #include "pxr/base/trace/collection.h"
32 
33 #include "pxr/base/tf/token.h"
34 
35 #include <map>
36 #include <unordered_map>
37 #include <vector>
38 
39 PXR_NAMESPACE_OPEN_SCOPE
40 
51 public:
52  using CounterValues = std::vector<std::pair<TraceEvent::TimeStamp, double>>;
53  using CounterValuesMap =
54  std::unordered_map<TfToken, CounterValues, TfToken::HashFunctor>;
55  using CounterMap =
56  std::unordered_map<TfToken, double, TfToken::HashFunctor>;
57 
59  TraceCounterAccumulator() = default;
60 
62  const CounterValuesMap& GetCounters() const {
63  return _counterValuesOverTime;
64  }
65 
67  TRACE_API void SetCurrentValues(const CounterMap&);
68 
70  const CounterMap& GetCurrentValues() const {
71  return _currentValues;
72  }
73 
76  TRACE_API void Update(const TraceCollection& collection);
77 
78 protected:
80  virtual bool _AcceptsCategory(TraceCategoryId id) = 0;
81 
82 private:
83  // TraceCollection::Visitor Interface
84  virtual void OnBeginCollection() override;
85  virtual void OnEndCollection() override;
86  virtual void OnBeginThread(const TraceThreadId&) override;
87  virtual void OnEndThread(const TraceThreadId&) override;
88  virtual bool AcceptsCategory(TraceCategoryId) override;
89  virtual void OnEvent(
90  const TraceThreadId&, const TfToken&, const TraceEvent&) override;
91 
92  struct _CounterValue {
93  double value;
94  bool isDelta;
95  };
96 
97  using _CounterDeltaValues =
98  std::multimap<TraceEvent::TimeStamp, _CounterValue>;
99  using _CounterDeltaMap = std::map<TfToken, _CounterDeltaValues>;
100 
101  _CounterDeltaMap _counterDeltas;
102  CounterValuesMap _counterValuesOverTime;
103  CounterMap _currentValues;
104 };
105 
106 PXR_NAMESPACE_CLOSE_SCOPE
107 
108 #endif //TRACE_COUNTER_ACCUMULATOR_H
const CounterMap & GetCurrentValues() const
Returns the current value of the counters.
virtual bool _AcceptsCategory(TraceCategoryId id)=0
Determines whether or not counter events with id should be processed.
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:89
This represents an event recorded by a TraceCollector.
Definition: event.h:47
TraceCounterAccumulator()=default
Constructor.
TRACE_API void Update(const TraceCollection &collection)
Reads events /p collection and updates the current values of the counters.
This interface provides a way to access data a TraceCollection.
Definition: collection.h:83
This class owns lists of TraceEvent instances per thread, and allows read access to them...
Definition: collection.h:49
This class accumulates counter values from TraceCollection instances.
const CounterValuesMap & GetCounters() const
Returns a map of the counter values over time.
TRACE_API void SetCurrentValues(const CounterMap &)
Sets the current value of the counters.
uint32_t TraceCategoryId
Categories that a TraceReporter can use to filter events.
Definition: category.h:44