mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-16 10:19:23 +02:00
be8fb0b4e2
* initial metrics work * rename cumulative to counter * rename bidirectional to nonmonotonic * rename unidirectional to monotonic * rename nonnegative to signed this changes the default semantics a bit - before the change measure could record negative values by default, now it can't. The specification draft currently specifies both NonNegative and Signed, but I think it's a mistake. * rename instrument to descriptor * license * rework measurement values * make measurement value a tagged union * simplify to one kind of metrics * add observers * change some interfaces to match the spec * keep integral measurement separate from floating ones * remove duplicated measurement type * add checking for options * reorder some fields and functions * rename a function to avoid confusion between the Handle type and the Measure type * drop disabled field from descriptor * add back typed API for metrics * make metric options type safe * merge alternatives into a single bool * make value kind name less stuttery * fix observation callback prototype * drop context parameter from NewHandle * drop useless parameter names * make descriptor an opaque struct * use a store helper * handle comment fixes * reword Alternate comment * drop the "any value" metrics * make measurement value simpler * document value stuff * add tests for values * docs * do not panic if there is no span ID in the event
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
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 sdk
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import (
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"sync"
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"sync/atomic"
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"go.opentelemetry.io/api/metric"
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"go.opentelemetry.io/api/trace"
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"go.opentelemetry.io/experimental/streaming/exporter"
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)
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type observerData struct {
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observer metric.Observer
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callback metric.ObserverCallback
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}
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type observersMap map[metric.DescriptorID]observerData
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type sdk struct {
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exporter *exporter.Exporter
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resources exporter.EventID
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observersLock sync.Mutex
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observers atomic.Value // observersMap
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}
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type SDK interface {
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trace.Tracer
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metric.Meter
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}
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var _ SDK = &sdk{}
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func New(observers ...exporter.Observer) SDK {
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return &sdk{
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exporter: exporter.NewExporter(observers...),
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}
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}
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