update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / api / include / opentelemetry / metrics / meter_provider.h

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0

#pragma once
#ifndef ENABLE_METRICS_PREVIEW

#  include "opentelemetry/metrics/meter.h"
#  include "opentelemetry/nostd/shared_ptr.h"
#  include "opentelemetry/nostd/string_view.h"

OPENTELEMETRY_BEGIN_NAMESPACE
namespace metrics
{
/**
 * Creates new Meter instances.
 */
class MeterProvider
{
public:
  virtual ~MeterProvider() = default;
  /**
   * Gets or creates a named Meter instance.
   *
   * Optionally a version can be passed to create a named and versioned Meter
   * instance.
   */
  virtual nostd::shared_ptr<Meter> GetMeter(nostd::string_view library_name,
                                            nostd::string_view library_version = "",
                                            nostd::string_view schema_url      = "") noexcept = 0;
};
}  // namespace metrics
OPENTELEMETRY_END_NAMESPACE
#endif