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53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package tracer
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import (
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"fmt"
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"runtime"
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)
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const (
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numFuncsInStack = 10
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frameNumToSkip = 2
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)
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// StackTraceMsg returns the stack information, which numFuncs means how many functions do you want to show in the stack
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// information.
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func StackTraceMsg(numFuncs uint) string {
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pc := make([]uintptr, numFuncs)
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n := runtime.Callers(frameNumToSkip, pc)
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frames := runtime.CallersFrames(pc[:n])
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ret := ""
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for {
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frame, more := frames.Next()
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ret += fmt.Sprintf("%s:%d %s\n", frame.File, frame.Line, frame.Function)
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if !more {
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break
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}
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}
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return ret
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}
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// StackTrace returns the stack trace information.
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func StackTrace() string {
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return StackTraceMsg(numFuncsInStack)
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}
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