yggdrasil-go/src/core/debug.go

package core

import (
	"fmt"
	"net/http"
	_ "net/http/pprof"
	"os"
)

// Start the profiler if the required environment variable is set.
func init() {
	envVarName := "PPROFLISTEN"
	if hostPort := os.Getenv(envVarName); hostPort != "" {
		fmt.Fprintf(os.Stderr, "DEBUG: Starting pprof on %s\n", hostPort)
		go func() {
			fmt.Fprintf(os.Stderr, "DEBUG: %s", http.ListenAndServe(hostPort, nil))
		}()
	}
}