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ceph-csi/vendor/k8s.io/klog/v2/internal/dbg/dbg.go
dependabot[bot] f8c8ff6c70 rebase: bump k8s.io/klog/v2 from 2.60.1 to 2.70.1
Bumps [k8s.io/klog/v2](https://github.com/kubernetes/klog) from 2.60.1 to 2.70.1.
- [Release notes](https://github.com/kubernetes/klog/releases)
- [Changelog](https://github.com/kubernetes/klog/blob/main/RELEASE.md)
- [Commits](https://github.com/kubernetes/klog/compare/v2.60.1...v2.70.1)

---
updated-dependencies:
- dependency-name: k8s.io/klog/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-15 14:37:18 +00:00

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1.2 KiB
Go

// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
//
// Copyright 2013 Google Inc. All Rights Reserved.
//
// 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 dbg provides some helper code for call traces.
package dbg
import (
"runtime"
)
// Stacks is a wrapper for runtime.Stack that attempts to recover the data for
// all goroutines or the calling one.
func Stacks(all bool) []byte {
// We don't know how big the traces are, so grow a few times if they don't fit. Start large, though.
n := 10000
if all {
n = 100000
}
var trace []byte
for i := 0; i < 5; i++ {
trace = make([]byte, n)
nbytes := runtime.Stack(trace, all)
if nbytes < len(trace) {
return trace[:nbytes]
}
n *= 2
}
return trace
}