diff options
Diffstat (limited to 'vendor/go.opentelemetry.io/otel/metric/internal/global/state.go')
-rw-r--r-- | vendor/go.opentelemetry.io/otel/metric/internal/global/state.go | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/vendor/go.opentelemetry.io/otel/metric/internal/global/state.go b/vendor/go.opentelemetry.io/otel/metric/internal/global/state.go deleted file mode 100644 index 47c0d787d..000000000 --- a/vendor/go.opentelemetry.io/otel/metric/internal/global/state.go +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright The OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// htmp://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package global // import "go.opentelemetry.io/otel/metric/internal/global" - -import ( - "errors" - "sync" - "sync/atomic" - - "go.opentelemetry.io/otel/internal/global" - "go.opentelemetry.io/otel/metric" -) - -var ( - globalMeterProvider = defaultMeterProvider() - - delegateMeterOnce sync.Once -) - -type meterProviderHolder struct { - mp metric.MeterProvider -} - -// MeterProvider is the internal implementation for global.MeterProvider. -func MeterProvider() metric.MeterProvider { - return globalMeterProvider.Load().(meterProviderHolder).mp -} - -// SetMeterProvider is the internal implementation for global.SetMeterProvider. -func SetMeterProvider(mp metric.MeterProvider) { - current := MeterProvider() - if _, cOk := current.(*meterProvider); cOk { - if _, mpOk := mp.(*meterProvider); mpOk && current == mp { - // Do not assign the default delegating MeterProvider to delegate - // to itself. - global.Error( - errors.New("no delegate configured in meter provider"), - "Setting meter provider to it's current value. No delegate will be configured", - ) - return - } - } - - delegateMeterOnce.Do(func() { - if def, ok := current.(*meterProvider); ok { - def.setDelegate(mp) - } - }) - globalMeterProvider.Store(meterProviderHolder{mp: mp}) -} - -func defaultMeterProvider() *atomic.Value { - v := &atomic.Value{} - v.Store(meterProviderHolder{mp: &meterProvider{}}) - return v -} |