goid

Documentation

Overview

Package goid obtaines a thread’s parl.ThreadID unique goroutine identifier.

Index

• func GoID() (threadID parl.ThreadID)

Functions

func GoID

func GoID() (threadID parl.ThreadID)

GoID obtains a numeric string that as of Go1.18 is assigned to each goroutine

• goid 64-bit integer number incremented from 1 for the main invocation thread
• cache this value, it is expensive at 1.7 parallel mutex Lock/Unlock via pruntime.FirstStackLine

Usage:

m := map[goid.ThreadID]SomeInterface{}
cachedGoID := goid.GoID()
m[cachedGoID] = …