ceph/src/jaegertracing/opentelemetry-cpp/api/include/opentelemetry/metrics/async_instruments.h

   1 // Copyright The OpenTelemetry Authors
   2 // SPDX-License-Identifier: Apache-2.0
   3
   4 #pragma once
   5 #ifndef ENABLE_METRICS_PREVIEW
   6
   7 #  include "opentelemetry/metrics/observer_result.h"
   8
   9 OPENTELEMETRY_BEGIN_NAMESPACE
  10 namespace metrics
  11 {
  12 class AsynchronousInstrument
  13 {};
  14
  15 template <class T>
  16 class ObservableCounter : public AsynchronousInstrument
  17 {};
  18
  19 template <class T>
  20 class ObservableGauge : public AsynchronousInstrument
  21 {};
  22
  23 template <class T>
  24 class ObservableUpDownCounter : public AsynchronousInstrument
  25 {};
  26
  27 }  // namespace metrics
  28 OPENTELEMETRY_END_NAMESPACE
  29 #endif