How to Use runtime.Gosched and runtime.Goexit

Use runtime.Gosched() to yield the processor to other goroutines and runtime.Goexit() to terminate the current goroutine immediately without returning to the caller.

package main

import (
	"fmt"
	"runtime"
)

func main() {
	go func() {
		fmt.Println("Starting goroutine")
		runtime.Gosched() // Yield to other goroutines
		fmt.Println("Resumed")
	}()

	go func() {
		fmt.Println("Exiting goroutine")
		runtime.Goexit() // Terminate this goroutine
		fmt.Println("This will not print")
	}()

	// Wait for goroutines to finish
	for i := 0; i < 1000000; i {}
}

runtime.Gosched() is like politely stepping aside in a line to let others go first, ensuring your program stays responsive. runtime.Goexit() is like leaving the room entirely, stopping your specific task immediately without finishing the rest of the instructions. You use Gosched() to prevent blocking and Goexit() to cleanly stop a background task from within a nested function.