godns/main.go

96 lines
1.3 KiB
Go

package main
import (
"os"
"os/signal"
"runtime"
"runtime/pprof"
"time"
)
var (
logger *GoDNSLogger
)
func main() {
initLogger()
server := &Server{
host: settings.Server.Host,
port: settings.Server.Port,
rTimeout: 5 * time.Second,
wTimeout: 5 * time.Second,
}
server.Run()
logger.Info("godns %s start", settings.Version)
if settings.Debug {
go profileCPU()
go profileMEM()
}
sig := make(chan os.Signal)
signal.Notify(sig, os.Interrupt)
forever:
for {
select {
case <-sig:
logger.Info("signal received, stopping")
break forever
}
}
}
func profileCPU() {
f, err := os.Create("godns.cprof")
if err != nil {
logger.Error("%s", err)
return
}
pprof.StartCPUProfile(f)
time.AfterFunc(6*time.Minute, func() {
pprof.StopCPUProfile()
f.Close()
})
}
func profileMEM() {
f, err := os.Create("godns.mprof")
if err != nil {
logger.Error("%s", err)
return
}
time.AfterFunc(5*time.Minute, func() {
pprof.WriteHeapProfile(f)
f.Close()
})
}
func initLogger() {
logger = NewLogger()
if settings.Log.Stdout {
logger.SetLogger("console", nil)
}
if settings.Log.File != "" {
config := map[string]interface{}{"file": settings.Log.File}
logger.SetLogger("file", config)
}
logger.SetLevel(settings.Log.LogLevel())
}
func init() {
runtime.GOMAXPROCS(runtime.NumCPU())
}