-
Notifications
You must be signed in to change notification settings - Fork 51
/
serial.go
75 lines (63 loc) · 1.59 KB
/
serial.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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
package deadline
import (
"net"
"sync"
"github.com/sagernet/sing/common/buf"
"github.com/sagernet/sing/common/debug"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
)
type SerialConn struct {
N.ExtendedConn
access sync.Mutex
}
func NewSerialConn(conn N.ExtendedConn) N.ExtendedConn {
if !debug.Enabled {
return conn
}
return &SerialConn{ExtendedConn: conn}
}
func (c *SerialConn) Read(p []byte) (n int, err error) {
if !c.access.TryLock() {
panic("concurrent read on deadline conn")
}
defer c.access.Unlock()
return c.ExtendedConn.Read(p)
}
func (c *SerialConn) ReadBuffer(buffer *buf.Buffer) error {
if !c.access.TryLock() {
panic("concurrent read on deadline conn")
}
defer c.access.Unlock()
return c.ExtendedConn.ReadBuffer(buffer)
}
func (c *SerialConn) Upstream() any {
return c.ExtendedConn
}
type SerialPacketConn struct {
N.NetPacketConn
access sync.Mutex
}
func NewSerialPacketConn(conn N.NetPacketConn) N.NetPacketConn {
if !debug.Enabled {
return conn
}
return &SerialPacketConn{NetPacketConn: conn}
}
func (c *SerialPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
if !c.access.TryLock() {
panic("concurrent read on deadline conn")
}
defer c.access.Unlock()
return c.NetPacketConn.ReadFrom(p)
}
func (c *SerialPacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
if !c.access.TryLock() {
panic("concurrent read on deadline conn")
}
defer c.access.Unlock()
return c.NetPacketConn.ReadPacket(buffer)
}
func (c *SerialPacketConn) Upstream() any {
return c.NetPacketConn
}