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59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
package logsdk
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import (
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"runtime"
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)
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const (
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maximumFrames = 32
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getCallerSkipOffset = 2
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entrySkipOffset = 2
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)
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// Frame 调用相关信息
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type Frame struct {
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Function string `json:"func"`
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File string `json:"file"`
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Line int `json:"line"`
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}
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// IsValid 表示是否有效
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func (frame Frame) IsValid() bool {
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return frame.Line > 0
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}
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func getCaller(skip int) Frame {
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pc := make([]uintptr, 1)
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n := runtime.Callers(skip+getCallerSkipOffset, pc)
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frame, _ := runtime.CallersFrames(pc[:n]).Next()
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if frame.PC == 0 {
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return Frame{}
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}
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return Frame{
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Function: frame.Function,
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File: frame.File,
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Line: frame.Line,
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}
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}
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func getStack(skip, maximumFrames int) []Frame {
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pc := make([]uintptr, maximumFrames)
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n := runtime.Callers(skip+getCallerSkipOffset, pc)
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stack := make([]Frame, 0, n)
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frames := runtime.CallersFrames(pc[:n])
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for {
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frame, more := frames.Next()
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if frame.PC != 0 {
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stack = append(stack, Frame{
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Function: frame.Function,
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File: frame.File,
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Line: frame.Line,
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})
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}
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if !more {
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break
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}
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}
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return stack
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}
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