ceph-csi/e2e/vendor/k8s.io/klog/v2/exit.go
Niels de Vos f87d06ed85 build: move e2e dependencies into e2e/go.mod
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>
2025-03-04 17:43:49 +01:00

70 lines
2.3 KiB
Go

// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
//
// Copyright 2013 Google Inc. All Rights Reserved.
// Copyright 2022 The Kubernetes 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
//
// http://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 klog
import (
"fmt"
"os"
"time"
)
var (
// ExitFlushTimeout is the timeout that klog has traditionally used during
// calls like Fatal or Exit when flushing log data right before exiting.
// Applications that replace those calls and do not have some specific
// requirements like "exit immediately" can use this value as parameter
// for FlushAndExit.
//
// Can be set for testing purpose or to change the application's
// default.
ExitFlushTimeout = 10 * time.Second
// OsExit is the function called by FlushAndExit to terminate the program.
//
// Can be set for testing purpose or to change the application's
// default behavior. Note that the function should not simply return
// because callers of functions like Fatal will not expect that.
OsExit = os.Exit
)
// FlushAndExit flushes log data for a certain amount of time and then calls
// os.Exit. Combined with some logging call it provides a replacement for
// traditional calls like Fatal or Exit.
func FlushAndExit(flushTimeout time.Duration, exitCode int) {
timeoutFlush(flushTimeout)
OsExit(exitCode)
}
// timeoutFlush calls Flush and returns when it completes or after timeout
// elapses, whichever happens first. This is needed because the hooks invoked
// by Flush may deadlock when klog.Fatal is called from a hook that holds
// a lock. Flushing also might take too long.
func timeoutFlush(timeout time.Duration) {
done := make(chan bool, 1)
go func() {
Flush() // calls logging.lockAndFlushAll()
done <- true
}()
select {
case <-done:
case <-time.After(timeout):
fmt.Fprintln(os.Stderr, "klog: Flush took longer than", timeout)
}
}