// Re-exec this image without dropping the listener passed to this function.
func restart(listener net.Listener, errLogger *common.ErrorLogger) error {
argv0, err := exec.LookPath(os.Args[0])
if nil != err {
return err
}
wd, err := os.Getwd()
if nil != err {
return err
}
v := reflect.ValueOf(listener).Elem().FieldByName("fd").Elem()
fd := uintptr(v.FieldByName("sysfd").Int())
allFiles := append([]*os.File{os.Stdin, os.Stdout, os.Stderr},
os.NewFile(fd, string(v.FieldByName("sysfile").String())))
p, err := os.StartProcess(argv0, os.Args, &os.ProcAttr{
Dir: wd,
Env: append(os.Environ(), fmt.Sprintf("%s=%d", FDKey, fd)),
Files: allFiles,
})
if nil != err {
return err
}
errLogger.Printf("spawned child %d\n", p.Pid)
return nil
}
func (services *Services) RunTcpServe(listener *controledListener, errLogger *common.ErrorLogger) {
defer services.wg.Done()
defer listener.Close()
var tempDelay time.Duration
for {
conn, err := listener.Accept()
if err != nil {
if ne, ok := err.(net.Error); ok && ne.Temporary() {
if tempDelay == 0 {
tempDelay = 5 * time.Millisecond
} else {
tempDelay *= 2
}
if max := 1 * time.Second; tempDelay > max {
tempDelay = max
}
errLogger.Println("http: Accept error:", err, "retry:", tempDelay)
time.Sleep(tempDelay)
continue
}
errLogger.Println("http: Accept error:;", err)
break
}
tempDelay = 0
worker, err := newWorkConn(conn, listener, errLogger)
if err != nil {
continue
}
listener.clientDict.Set(conn.RemoteAddr().String(), worker)
listener.count += 1
go worker.RunWorker()
}
//监听socket关闭后，在这里等所有连接结束
listener.wg.Wait()
}
func RunServer(addr_tcp string, addr_monitor string, errLogger *common.ErrorLogger) {
runtime.GOMAXPROCS(runtime.NumCPU())
errLogger.Println("program start.")
tcpAddr, err := net.ResolveTCPAddr("tcp", addr_tcp)
if err != nil {
errLogger.Fatalln("ResolveTCPAddr:", err)
}
controledListener, err := GetControledListener(tcpAddr)
if err != nil {
errLogger.Fatalln("GetControledListener:", err)
}
tcpMonitor, err := net.ResolveTCPAddr("tcp", addr_monitor)
if err != nil {
errLogger.Fatalln("ResolveMonitorAddr:", err)
}
controledMonitor, err := GetControledListener(tcpMonitor)
if err != nil {
errLogger.Fatalln("GetControledMonitorListener:", err)
}
//强杀
common.SignalWatchRegister(func() { os.Exit(-1) }, syscall.SIGTERM)
//和平结束
common.SignalWatchRegister(func() { controledListener.Close(); controledMonitor.Close() }, os.Interrupt)
//重启
common.SignalWatchRegister(func() { ReceiveSignupSignal(controledListener, errLogger) }, syscall.SIGHUP)
common.SignalWatchRun()
services := Services{wg: &sync.WaitGroup{}}
//启动tcp服务
services.wg.Add(1)
go services.RunTcpServe(controledListener, errLogger)
services.wg.Add(1)
go services.RunHttpServe(controledMonitor, controledListener, errLogger)
//等等所有服务协程都结束
services.wg.Wait()
errLogger.Println("program stop normal.")
}