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app.go
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app.go
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package config
import (
"flag"
"fmt"
"math/rand"
"net"
"runtime"
"strings"
"time"
)
// AppConf 应用全局参数
var AppConf appConf
func init() {
AppConf.goos = runtime.GOOS
AppConf.goarch = runtime.GOARCH
if AppConf.goos == "windows" {
AppConf.OS = OS_TYPE_WINDOWS
} else if AppConf.goos == "darwin" {
AppConf.OS = OS_TYPE_DARWIN
} else if AppConf.goos == "linux" {
AppConf.OS = OS_TYPE_LINUX
}
if AppConf.OS == OS_TYPE_UNSUPPORT {
panic("不支持 " + AppConf.goos + " 系统的编译运行")
}
if AppConf.goarch == "amd64" {
AppConf.Arch = ARCH_TYPE_AMD64
}
if AppConf.Arch == ARCH_TYPE_UNSUPPORT {
panic("不支持 " + AppConf.goarch + " 核心的编译运行")
}
mode := ""
flag.BoolVar(&AppConf.Debug, "debug", false, "调试模式,默认:false")
flag.StringVar(&AppConf.IP, "ip", "", "监听的IP地址,默认:127.0.0.1")
flag.IntVar(&AppConf.Port, "port", 0, "服务端口,默认:随机")
flag.StringVar(&mode, "mode", "app", "运行模式:web:Web模式;app:App模式(试验);默认:app")
flag.Parse()
if AppConf.IP == "" {
AppConf.IP = "127.0.0.1"
}
if AppConf.Port <= 0 {
AppConf.Port = newPort(AppConf.IP)
}
AppConf.Host = fmt.Sprintf("http://%s:%d", AppConf.IP, AppConf.Port)
switch strings.ToLower(mode) {
case "web":
AppConf.RunMode = RUN_MODE_WEB
case "app":
AppConf.RunMode = RUN_MODE_APP
default:
AppConf.RunMode = RUN_MODE_WEB
}
AppConf.Name = "goman"
AppConf.Version = "0.3.1"
AppConf.Started = time.Now().Unix()
}
type appConf struct {
goos string
goarch string
OS OSType
Arch ArchType
Name string
Version string
Debug bool
Host string
IP string
Port int
Started int64
RunMode RunModeType
}
//newPort 查找可用端口
func newPort(ip string) int {
i := 0
for {
if i > 10 {
return 8080
}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
port := r.Intn(60000)
if port <= 0 {
continue
}
conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", ip, port))
if err != nil {
if strings.Contains(err.Error(), "refused") {
return port
}
i++
continue
}
conn.Close()
}
}