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https://github.com/ceph/ceph-csi.git
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f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package trace // import "go.opentelemetry.io/otel/sdk/trace"
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import (
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"slices"
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"sync"
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"go.opentelemetry.io/otel/internal/global"
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)
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// evictedQueue is a FIFO queue with a configurable capacity.
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type evictedQueue[T any] struct {
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queue []T
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capacity int
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droppedCount int
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logDroppedMsg string
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logDroppedOnce sync.Once
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}
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func newEvictedQueueEvent(capacity int) evictedQueue[Event] {
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// Do not pre-allocate queue, do this lazily.
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return evictedQueue[Event]{
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capacity: capacity,
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logDroppedMsg: "limit reached: dropping trace trace.Event",
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}
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}
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func newEvictedQueueLink(capacity int) evictedQueue[Link] {
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// Do not pre-allocate queue, do this lazily.
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return evictedQueue[Link]{
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capacity: capacity,
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logDroppedMsg: "limit reached: dropping trace trace.Link",
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}
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}
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// add adds value to the evictedQueue eq. If eq is at capacity, the oldest
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// queued value will be discarded and the drop count incremented.
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func (eq *evictedQueue[T]) add(value T) {
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if eq.capacity == 0 {
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eq.droppedCount++
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eq.logDropped()
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return
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}
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if eq.capacity > 0 && len(eq.queue) == eq.capacity {
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// Drop first-in while avoiding allocating more capacity to eq.queue.
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copy(eq.queue[:eq.capacity-1], eq.queue[1:])
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eq.queue = eq.queue[:eq.capacity-1]
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eq.droppedCount++
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eq.logDropped()
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}
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eq.queue = append(eq.queue, value)
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}
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func (eq *evictedQueue[T]) logDropped() {
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eq.logDroppedOnce.Do(func() { global.Warn(eq.logDroppedMsg) })
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}
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// copy returns a copy of the evictedQueue.
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func (eq *evictedQueue[T]) copy() []T {
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return slices.Clone(eq.queue)
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}
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