chore: use singleDo to get interface info

This commit is contained in:
gVisor bot 2021-01-13 17:30:54 +08:00
parent ed77eeeb97
commit 8c09af3746
2 changed files with 22 additions and 10 deletions

View file

@ -3,8 +3,14 @@ package dialer
import (
"errors"
"net"
"time"
"github.com/Dreamacro/clash/common/singledo"
)
// In some OS, such as Windows, it takes a little longer to get interface information
var ifaceSingle = singledo.NewSingle(time.Second * 20)
var (
errPlatformNotSupport = errors.New("unsupport platform")
)
@ -56,12 +62,14 @@ func fallbackBindToDialer(dialer *net.Dialer, network string, ip net.IP, name st
return nil
}
iface, err := net.InterfaceByName(name)
iface, err, _ := ifaceSingle.Do(func() (interface{}, error) {
return net.InterfaceByName(name)
})
if err != nil {
return err
}
addrs, err := iface.Addrs()
addrs, err := iface.(*net.Interface).Addrs()
if err != nil {
return err
}
@ -85,12 +93,14 @@ func fallbackBindToDialer(dialer *net.Dialer, network string, ip net.IP, name st
}
func fallbackBindToListenConfig(name string) (string, error) {
iface, err := net.InterfaceByName(name)
iface, err, _ := ifaceSingle.Do(func() (interface{}, error) {
return net.InterfaceByName(name)
})
if err != nil {
return "", err
}
addrs, err := iface.Addrs()
addrs, err := iface.(*net.Interface).Addrs()
if err != nil {
return "", err
}

View file

@ -29,23 +29,25 @@ func bindControl(ifaceIdx int) controlFn {
}
func bindIfaceToDialer(dialer *net.Dialer, ifaceName string) error {
iface, err := net.InterfaceByName(ifaceName)
iface, err, _ := ifaceSingle.Do(func() (interface{}, error) {
return net.InterfaceByName(ifaceName)
})
if err != nil {
return err
}
dialer.Control = bindControl(iface.Index)
dialer.Control = bindControl(iface.(*net.Interface).Index)
return nil
}
func bindIfaceToListenConfig(lc *net.ListenConfig, ifaceName string) error {
iface, err := net.InterfaceByName(ifaceName)
iface, err, _ := ifaceSingle.Do(func() (interface{}, error) {
return net.InterfaceByName(ifaceName)
})
if err != nil {
return err
}
lc.Control = bindControl(iface.Index)
lc.Control = bindControl(iface.(*net.Interface).Index)
return nil
}