mirror of
https://github.com/opentffoundation/opentf.git
synced 2026-03-10 10:01:16 -04:00
ee5fc3b986
This puts us on a version that has grpc protocol support. Although we're not actually using that yet, the plugin has handshake changed slightly to allow plugins to declare whether they use the old or new protocols, and so this upgrade allows us to support plugins that were built against newer versions of go-plugin that include this extra field in the handshake. This fixes #15756.
109 lines
3.1 KiB
Go
109 lines
3.1 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package hclog
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import (
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"bytes"
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"runtime"
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"strconv"
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"strings"
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"sync"
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)
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var (
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_stacktraceIgnorePrefixes = []string{
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"runtime.goexit",
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"runtime.main",
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}
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_stacktracePool = sync.Pool{
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New: func() interface{} {
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return newProgramCounters(64)
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},
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}
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)
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// A stacktrace gathered by a previous call to log.Stacktrace. If passed
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// to a logging function, the stacktrace will be appended.
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type CapturedStacktrace string
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// Gather a stacktrace of the current goroutine and return it to be passed
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// to a logging function.
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func Stacktrace() CapturedStacktrace {
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return CapturedStacktrace(takeStacktrace())
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}
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func takeStacktrace() string {
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programCounters := _stacktracePool.Get().(*programCounters)
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defer _stacktracePool.Put(programCounters)
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var buffer bytes.Buffer
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for {
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// Skip the call to runtime.Counters and takeStacktrace so that the
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// program counters start at the caller of takeStacktrace.
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n := runtime.Callers(2, programCounters.pcs)
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if n < cap(programCounters.pcs) {
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programCounters.pcs = programCounters.pcs[:n]
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break
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}
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// Don't put the too-short counter slice back into the pool; this lets
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// the pool adjust if we consistently take deep stacktraces.
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programCounters = newProgramCounters(len(programCounters.pcs) * 2)
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}
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i := 0
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frames := runtime.CallersFrames(programCounters.pcs)
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for frame, more := frames.Next(); more; frame, more = frames.Next() {
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if shouldIgnoreStacktraceFunction(frame.Function) {
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continue
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}
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if i != 0 {
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buffer.WriteByte('\n')
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}
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i++
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buffer.WriteString(frame.Function)
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buffer.WriteByte('\n')
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buffer.WriteByte('\t')
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buffer.WriteString(frame.File)
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buffer.WriteByte(':')
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buffer.WriteString(strconv.Itoa(int(frame.Line)))
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}
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return buffer.String()
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}
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func shouldIgnoreStacktraceFunction(function string) bool {
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for _, prefix := range _stacktraceIgnorePrefixes {
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if strings.HasPrefix(function, prefix) {
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return true
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}
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}
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return false
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}
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type programCounters struct {
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pcs []uintptr
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}
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func newProgramCounters(size int) *programCounters {
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return &programCounters{make([]uintptr, size)}
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}
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