beego: delete hotupdate

admin.go

@@ -107,7 +107,6 @@ func listConf(rw http.ResponseWriter, r *http.Request) {
 			fmt.Fprintln(rw, "MaxMemory:", MaxMemory)
 			fmt.Fprintln(rw, "EnableGzip:", EnableGzip)
 			fmt.Fprintln(rw, "DirectoryIndex:", DirectoryIndex)
-			fmt.Fprintln(rw, "EnableHotUpdate:", EnableHotUpdate)
 			fmt.Fprintln(rw, "HttpServerTimeOut:", HttpServerTimeOut)
 			fmt.Fprintln(rw, "ErrorsShow:", ErrorsShow)
 			fmt.Fprintln(rw, "XSRFKEY:", XSRFKEY)

app.go

@@ -45,7 +45,7 @@ func (app *App) Run() {
 		err error
 		l   net.Listener
 	)
-	endRunning := make(chan bool)
+	endRunning := make(chan bool, 1)
 
 	if UseFcgi {
 		if HttpPort == 0 {
@@ -57,26 +57,6 @@ func (app *App) Run() {
 			BeeLogger.Critical("Listen: ", err)
 		}
 		err = fcgi.Serve(l, app.Handlers)
-	} else {
-		if EnableHotUpdate {
-			server := &http.Server{
-				Handler:      app.Handlers,
-				ReadTimeout:  time.Duration(HttpServerTimeOut) * time.Second,
-				WriteTimeout: time.Duration(HttpServerTimeOut) * time.Second,
-			}
-			laddr, err := net.ResolveTCPAddr("tcp", addr)
-			if nil != err {
-				BeeLogger.Critical("ResolveTCPAddr:", err)
-			}
-			l, err = GetInitListener(laddr)
-			if err == nil {
-				theStoppable = newStoppable(l)
-				err = server.Serve(theStoppable)
-				if err == nil {
-					theStoppable.wg.Wait()
-					err = CloseSelf()
-				}
-			}
 	} else {
 		s := &http.Server{
 			Addr:         addr,
@@ -109,7 +89,6 @@ func (app *App) Run() {
 			}()
 		}
 	}
-	}
 
 	<-endRunning
 }

config.go

@@ -56,7 +56,6 @@ var (
 	MaxMemory              int64
 	EnableGzip             bool // flag of enable gzip
 	DirectoryIndex         bool // flag of display directory index. default is false.
-	EnableHotUpdate        bool // flag of hot update checking by app self. default is false.
 	HttpServerTimeOut      int64
 	ErrorsShow             bool   // flag of show errors in page. if true, show error and trace info in page rendered with error template.
 	XSRFKEY                string // xsrf hash salt string.
@@ -101,6 +100,7 @@ func init() {
 
 	// set this to 0.0.0.0 to make this app available to externally
 	EnableHttpListen = true //default enable http Listen
+
 	HttpAddr = ""
 	HttpPort = 8080
 
@@ -254,10 +254,6 @@ func ParseConfig() (err error) {
 			DirectoryIndex = directoryindex
 		}
 
-		if hotupdate, err := AppConfig.Bool("HotUpdate"); err == nil {
-			EnableHotUpdate = hotupdate
-		}
-
 		if timeout, err := AppConfig.Int64("HttpServerTimeOut"); err == nil {
 			HttpServerTimeOut = timeout
 		}

reload.go

-// Beego (http://beego.me/)
-// @description beego is an open-source, high-performance web framework for the Go programming language.
-// @link        http://github.com/astaxie/beego for the canonical source repository
-// @license     http://github.com/astaxie/beego/blob/master/LICENSE
-// @authors     astaxie
-
-package beego
-
-import (
-	"errors"
-	"fmt"
-	"log"
-	"net"
-	"os"
-	"os/exec"
-	"os/signal"
-	"reflect"
-	"strconv"
-	"sync"
-	//"syscall"
-)
-
-const (
-	// An environment variable when restarting application http listener.
-	FDKey = "BEEGO_HOT_FD"
-)
-
-// Export an error equivalent to net.errClosing for use with Accept during
-// a graceful exit.
-var ErrClosing = errors.New("use of closed network connection")
-var ErrInitStart = errors.New("init from")
-
-// Allows for us to notice when the connection is closed.
-type conn struct {
-	net.Conn
-	wg      *sync.WaitGroup
-	isclose bool
-	lock    *sync.Mutex
-}
-
-// Close current processing connection.
-func (c conn) Close() error {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-	err := c.Conn.Close()
-	if !c.isclose && err == nil {
-		c.wg.Done()
-		c.isclose = true
-	}
-	return err
-}
-
-type stoppableListener struct {
-	net.Listener
-	count   int64
-	stopped bool
-	wg      sync.WaitGroup
-}
-
-var theStoppable *stoppableListener
-
-func newStoppable(l net.Listener) (sl *stoppableListener) {
-	sl = &stoppableListener{Listener: l}
-
-	// this goroutine monitors the channel. Can't do this in
-	// Accept (below) because once it enters sl.Listener.Accept()
-	// it blocks. We unblock it by closing the fd it is trying to
-	// accept(2) on.
-	go func() {
-		WaitSignal(l)
-		sl.stopped = true
-		sl.Listener.Close()
-	}()
-	return
-}
-
-// Set stopped Listener to accept requests again.
-// it returns the accepted and closable connection or error.
-func (sl *stoppableListener) Accept() (c net.Conn, err error) {
-	c, err = sl.Listener.Accept()
-	if err != nil {
-		return
-	}
-	sl.wg.Add(1)
-	// Wrap the returned connection, so that we can observe when
-	// it is closed.
-	c = conn{Conn: c, wg: &sl.wg}
-
-	return
-}
-
-// Listener waits signal to kill or interrupt then restart.
-func WaitSignal(l net.Listener) error {
-	ch := make(chan os.Signal, 1)
-	signal.Notify(ch, os.Interrupt, os.Kill)
-	for {
-		sig := <-ch
-		log.Println(sig.String())
-		switch sig {
-
-		case os.Kill:
-			return nil
-		case os.Interrupt:
-			err := Restart(l)
-			if nil != err {
-				return err
-			}
-			return nil
-		}
-	}
-}
-
-// Kill current running os process.
-func CloseSelf() error {
-	ppid := os.Getpid()
-	if ppid == 1 { // init provided sockets, for example systemd
-		return nil
-	}
-	p, err := os.FindProcess(ppid)
-	if err != nil {
-		return err
-	}
-	return p.Kill()
-}
-
-// Re-exec this image without dropping the listener passed to this function.
-func Restart(l net.Listener) 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(l).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
-	}
-	log.Printf("spawned child %d\n", p.Pid)
-	return nil
-}
-
-// Get current net.Listen in running process.
-func GetInitListener(tcpaddr *net.TCPAddr) (l net.Listener, err error) {
-	countStr := os.Getenv(FDKey)
-	if countStr == "" {
-		return net.ListenTCP("tcp", tcpaddr)
-	}
-	count, err := strconv.Atoi(countStr)
-	if err != nil {
-		return nil, err
-	}
-	f := os.NewFile(uintptr(count), "listen socket")
-	l, err = net.FileListener(f)
-	if err != nil {
-		return nil, err
-	}
-	return l, nil
-}