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36 lines
1016 B
Go
36 lines
1016 B
Go
// Copyright 2019, OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metric
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import (
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"sync/atomic"
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)
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var global atomic.Value
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// GlobalMeter returns a meter registered as a global meter. If no
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// meter is registered then an instance of noop Meter is returned.
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func GlobalMeter() Meter {
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if t := global.Load(); t != nil {
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return t.(Meter)
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}
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return NoopMeter{}
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}
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// SetGlobalMeter sets provided meter as a global meter.
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func SetGlobalMeter(t Meter) {
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global.Store(t)
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}
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