Viewing file:  histogram-inl.h (1.68 KB) -rw-r--r--
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#ifndef SRC_HISTOGRAM_INL_H_
#define SRC_HISTOGRAM_INL_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "histogram.h"
#include "base_object-inl.h"
#include "node_internals.h"
namespace node {
void Histogram::Reset() {
hdr_reset(histogram_.get());
}
bool Histogram::Record(int64_t value) {
return hdr_record_value(histogram_.get(), value);
}
int64_t Histogram::Min() {
return hdr_min(histogram_.get());
}
int64_t Histogram::Max() {
return hdr_max(histogram_.get());
}
double Histogram::Mean() {
return hdr_mean(histogram_.get());
}
double Histogram::Stddev() {
return hdr_stddev(histogram_.get());
}
double Histogram::Percentile(double percentile) {
CHECK_GT(percentile, 0);
CHECK_LE(percentile, 100);
return static_cast<double>(
hdr_value_at_percentile(histogram_.get(), percentile));
}
template <typename Iterator>
void Histogram::Percentiles(Iterator&& fn) {
hdr_iter iter;
hdr_iter_percentile_init(&iter, histogram_.get(), 1);
while (hdr_iter_next(&iter)) {
double key = iter.specifics.percentiles.percentile;
double value = static_cast<double>(iter.value);
fn(key, value);
}
}
bool HistogramBase::RecordDelta() {
uint64_t time = uv_hrtime();
bool ret = true;
if (prev_ > 0) {
int64_t delta = time - prev_;
if (delta > 0) {
ret = Record(delta);
TraceDelta(delta);
if (!ret) {
if (exceeds_ < 0xFFFFFFFF)
exceeds_++;
TraceExceeds(delta);
}
}
}
prev_ = time;
return ret;
}
void HistogramBase::ResetState() {
Reset();
exceeds_ = 0;
prev_ = 0;
}
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_HISTOGRAM_INL_H_
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