mirror of
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>
79 lines
2.4 KiB
Go
79 lines
2.4 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package logreduction
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import (
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"sync"
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"time"
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)
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var nowfunc = func() time.Time { return time.Now() }
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// LogReduction provides a filter for consecutive identical log messages;
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// a message will be printed no more than once per interval.
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// If a string of messages is interrupted by a different message,
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// the interval timer will be reset.
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type LogReduction struct {
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lastError map[string]string
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errorPrinted map[string]time.Time
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errorMapLock sync.Mutex
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identicalErrorDelay time.Duration
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}
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// NewLogReduction returns an initialized LogReduction
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func NewLogReduction(identicalErrorDelay time.Duration) *LogReduction {
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l := new(LogReduction)
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l.lastError = make(map[string]string)
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l.errorPrinted = make(map[string]time.Time)
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l.identicalErrorDelay = identicalErrorDelay
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return l
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}
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func (l *LogReduction) cleanupErrorTimeouts() {
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for name, timeout := range l.errorPrinted {
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if nowfunc().Sub(timeout) >= l.identicalErrorDelay {
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delete(l.errorPrinted, name)
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delete(l.lastError, name)
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}
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}
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}
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// ShouldMessageBePrinted determines whether a message should be printed based
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// on how long ago this particular message was last printed
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func (l *LogReduction) ShouldMessageBePrinted(message string, parentID string) bool {
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l.errorMapLock.Lock()
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defer l.errorMapLock.Unlock()
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l.cleanupErrorTimeouts()
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lastMsg, ok := l.lastError[parentID]
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lastPrinted, ok1 := l.errorPrinted[parentID]
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if !ok || !ok1 || message != lastMsg || nowfunc().Sub(lastPrinted) >= l.identicalErrorDelay {
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l.errorPrinted[parentID] = nowfunc()
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l.lastError[parentID] = message
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return true
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}
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return false
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}
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// ClearID clears out log reduction records pertaining to a particular parent
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// (e. g. container ID)
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func (l *LogReduction) ClearID(parentID string) {
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l.errorMapLock.Lock()
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defer l.errorMapLock.Unlock()
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delete(l.lastError, parentID)
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delete(l.errorPrinted, parentID)
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}
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