/
sing.go
40 lines (32 loc) · 1.01 KB
/
sing.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
package net
import (
"context"
"net"
"runtime"
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/bufio"
"github.com/sagernet/sing/common/bufio/deadline"
"github.com/sagernet/sing/common/network"
)
var NewExtendedConn = bufio.NewExtendedConn
var NewExtendedWriter = bufio.NewExtendedWriter
var NewExtendedReader = bufio.NewExtendedReader
type ExtendedConn = network.ExtendedConn
type ExtendedWriter = network.ExtendedWriter
type ExtendedReader = network.ExtendedReader
func NewDeadlineConn(conn net.Conn) ExtendedConn {
return deadline.NewFallbackConn(conn)
}
func NeedHandshake(conn any) bool {
if earlyConn, isEarlyConn := common.Cast[network.EarlyConn](conn); isEarlyConn && earlyConn.NeedHandshake() {
return true
}
return false
}
type CountFunc = network.CountFunc
// Relay copies between left and right bidirectionally.
func Relay(leftConn, rightConn net.Conn) {
defer runtime.KeepAlive(leftConn)
defer runtime.KeepAlive(rightConn)
_ = bufio.CopyConn(context.TODO(), leftConn, rightConn)
}