fix GetAllInterfaceAddr cpu high

README_ZH.md

@@ -48,7 +48,7 @@ Proxy是golang实现的高性能http,https,websocket,tcp,udp,socks5代理服务
 - ...  
 
 
-本页是v5.3手册,其他版本手册请点击[这里](docs/old-release.md)查看. 
+本页是v5.4手册,其他版本手册请点击[这里](docs/old-release.md)查看. 
 
 
 ### 怎么找到组织?  
@@ -159,7 +159,7 @@ curl -L https://raw.githubusercontent.com/snail007/goproxy/master/install_auto.s
 下载地址:https://github.com/snail007/goproxy/releases  
 ```shell  
 cd /root/proxy/  
-wget https://github.com/snail007/goproxy/releases/download/v5.3/proxy-linux-amd64.tar.gz  
+wget https://github.com/snail007/goproxy/releases/download/v5.4/proxy-linux-amd64.tar.gz  
 ```  
 #### **2.下载自动安装脚本**  
 ```shell  

docs/old-release.md

@@ -1,5 +1,6 @@
 # Old Versions of Proxy
 
+- [v5.3手册](https://github.com/snail007/goproxy/tree/v5.3) 
 - [v5.2手册](https://github.com/snail007/goproxy/tree/v5.2) 
 - [v5.1手册](https://github.com/snail007/goproxy/tree/v5.1) 
 - [v5.0手册](https://github.com/snail007/goproxy/tree/v5.0) 

install_auto.sh

@@ -5,7 +5,7 @@ if [ -e /tmp/proxy ]; then
 fi
 mkdir /tmp/proxy
 cd /tmp/proxy
-wget https://github.com/snail007/goproxy/releases/download/v5.3/proxy-linux-amd64.tar.gz
+wget https://github.com/snail007/goproxy/releases/download/v5.4/proxy-linux-amd64.tar.gz
 
 # #install proxy
 tar zxvf proxy-linux-amd64.tar.gz

main.go

@@ -9,7 +9,7 @@ import (
 	"github.com/snail007/goproxy/services"
 )
 
-const APP_VERSION = "5.3"
+const APP_VERSION = "5.4"
 
 func main() {
 	err := initConfig()

release.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-VER="5.3"
+VER="5.4"
 RELEASE="release-${VER}"
 rm -rf .cert
 mkdir .cert

utils/functions.go

@@ -22,15 +22,14 @@ import (
 
 	"golang.org/x/crypto/pbkdf2"
 
+	"context"
 	"strconv"
 	"strings"
 	"time"
-	"context"
 
 	"github.com/snail007/goproxy/utils/id"
 
 	kcp "github.com/xtaci/kcp-go"
-
 )
 
 func IoBind(dst io.ReadWriteCloser, src io.ReadWriteCloser, fn func(err interface{}), log *logger.Logger) {
@@ -210,8 +209,13 @@ func CloseConn(conn *net.Conn) {
 		(*conn).Close()
 	}
 }
-func GetAllInterfaceAddr() ([]net.IP, error) {
 
+var allInterfaceAddrCache []net.IP
+
+func GetAllInterfaceAddr() ([]net.IP, error) {
+	if allInterfaceAddrCache != nil {
+		return allInterfaceAddrCache, nil
+	}
 	ifaces, err := net.Interfaces()
 	if err != nil {
 		return nil, err
@@ -252,6 +256,7 @@ func GetAllInterfaceAddr() ([]net.IP, error) {
 		return nil, fmt.Errorf("no address Found, net.InterfaceAddrs: %v", addresses)
 	}
 	//only need first
+	allInterfaceAddrCache = addresses
 	return addresses, nil
 }
 func UDPPacket(srcAddr string, packet []byte) []byte {
@@ -635,14 +640,13 @@ func InsertProxyHeaders(head []byte, headers string) []byte {
 // 	return
 // }
 
-
 /*
 net.LookupIP may cause  deadlock in windows
 https://github.com/golang/go/issues/24178
 */
 func MyLookupIP(host string) ([]net.IP, error) {
 
-	ctx ,cancel := context.WithTimeout(context.Background(),time.Second *time.Duration(3))
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(3))
 	defer func() {
 		cancel()
 		//ctx.Done()