ceph/src/jaegertracing/opentelemetry-cpp/ext/include/opentelemetry/ext/zpages/latency_boundaries.h

   1 // Copyright The OpenTelemetry Authors
   2 // SPDX-License-Identifier: Apache-2.0
   3
   4 #pragma once
   5
   6 #include <array>
   7 #include <chrono>
   8
   9 #include "opentelemetry/version.h"
  10
  11 using std::chrono::microseconds;
  12 using std::chrono::milliseconds;
  13 using std::chrono::nanoseconds;
  14 using std::chrono::seconds;
  15
  16 OPENTELEMETRY_BEGIN_NAMESPACE
  17 namespace ext
  18 {
  19 namespace zpages
  20 {
  21 /**
  22  * kLatencyBoundaries is a constant array that contains the 9 latency
  23  * boundaries. Each value in the array represents the lower limit(inclusive) of
  24  * the boundary(in nano seconds) and the upper limit(exclusive) of the boundary
  25  * is the lower limit of the next one. The upper limit of the last boundary is
  26  * INF.
  27  */
  28 const std::array<nanoseconds, 9> kLatencyBoundaries = {
  29     nanoseconds(0),
  30     nanoseconds(microseconds(10)),
  31     nanoseconds(microseconds(100)),
  32     nanoseconds(milliseconds(1)),
  33     nanoseconds(milliseconds(10)),
  34     nanoseconds(milliseconds(100)),
  35     nanoseconds(seconds(1)),
  36     nanoseconds(seconds(10)),
  37     nanoseconds(seconds(100)),
  38 };
  39
  40 /**
  41  * LatencyBoundary enum is used to index into the kLatencyBoundaries container.
  42  * Using this enum lets you access the latency boundary at each index without
  43  * using magic numbers
  44  */
  45 enum LatencyBoundary
  46 {
  47   k0MicroTo10Micro,
  48   k10MicroTo100Micro,
  49   k100MicroTo1Milli,
  50   k1MilliTo10Milli,
  51   k10MilliTo100Milli,
  52   k100MilliTo1Second,
  53   k1SecondTo10Second,
  54   k10SecondTo100Second,
  55   k100SecondToMax
  56 };
  57
  58 }  // namespace zpages
  59 }  // namespace ext
  60 OPENTELEMETRY_END_NAMESPACE