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vendor: update buildkit to v0.18.0-rc1
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
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vendor/go.opentelemetry.io/otel/sdk/metric/internal/aggregate/limit.go
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vendor/go.opentelemetry.io/otel/sdk/metric/internal/aggregate/limit.go
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// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package aggregate // import "go.opentelemetry.io/otel/sdk/metric/internal/aggregate"
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import "go.opentelemetry.io/otel/attribute"
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// overflowSet is the attribute set used to record a measurement when adding
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// another distinct attribute set to the aggregate would exceed the aggregate
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// limit.
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var overflowSet = attribute.NewSet(attribute.Bool("otel.metric.overflow", true))
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// limiter limits aggregate values.
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type limiter[V any] struct {
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// aggLimit is the maximum number of metric streams that can be aggregated.
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//
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// Any metric stream with attributes distinct from any set already
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// aggregated once the aggLimit will be meet will instead be aggregated
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// into an "overflow" metric stream. That stream will only contain the
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// "otel.metric.overflow"=true attribute.
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aggLimit int
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}
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// newLimiter returns a new Limiter with the provided aggregation limit.
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func newLimiter[V any](aggregation int) limiter[V] {
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return limiter[V]{aggLimit: aggregation}
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}
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// Attributes checks if adding a measurement for attrs will exceed the
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// aggregation cardinality limit for the existing measurements. If it will,
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// overflowSet is returned. Otherwise, if it will not exceed the limit, or the
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// limit is not set (limit <= 0), attr is returned.
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func (l limiter[V]) Attributes(attrs attribute.Set, measurements map[attribute.Distinct]V) attribute.Set {
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if l.aggLimit > 0 {
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_, exists := measurements[attrs.Equivalent()]
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if !exists && len(measurements) >= l.aggLimit-1 {
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return overflowSet
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}
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}
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return attrs
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}
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