goroutine

README

goroutine identification

Package goroutine provides functions that will return the runtime's ID number for the calling goroutine or its creator.

The implementation is derived from Laevus Dexter's comment in Gophers' Slack #darkarts, https://gophers.slack.com/archives/C1C1YSQBT/p1593885226448300 post which linked to this playground snippet https://play.golang.org/p/CSOp9wyzydP.

The code here is an exercise in minimalism, doing as little as possible by deferring nearly all of the logic to runtime functions co-opted via //go:linkname comments.

Documentation

Overview

Package goroutine provides functions that will return the runtime's ID number for the calling goroutine or its creator.

The implementation is derived from Laevus Dexter's comment in Gophers' Slack #darkarts, https://gophers.slack.com/archives/C1C1YSQBT/p1593885226448300 post which linked to this playground snippet https://play.golang.org/p/CSOp9wyzydP.

Index

• func ID() int64
• func PID() int32
• func ParentID() int64
• type Link
  • func All() []Link

Functions

func ID

func ID() int64

ID returns the runtime ID of the calling goroutine.

func PID

func PID() int32

PID returns the "P" ID of the calling goroutine.

func ParentID

func ParentID() int64

ParentID returns the runtime ID of goroutine that created the calling goroutine.

Types

type Link

type Link struct {
	Parent, Child int64
}

Link is a goroutine parent-child relationship.

func All

func All() []Link

All returns all the known goroutine parent-child relationships.