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stats.go
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stats.go
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package libcore
import (
"net"
"sync/atomic"
)
type AppStats struct {
Uid int32
TcpConn int32
UdpConn int32
TcpConnTotal int32
UdpConnTotal int32
Uplink int64
Downlink int64
UplinkTotal int64
DownlinkTotal int64
DeactivateAt int32
}
type appStats struct {
tcpConn int32
udpConn int32
tcpConnTotal uint32
udpConnTotal uint32
uplink uint64
downlink uint64
uplinkTotal uint64
downlinkTotal uint64
deactivateAt int64
}
type TrafficListener interface {
UpdateStats(t *AppStats)
}
func (t *Tun2ray) GetTrafficStatsEnabled() bool {
return t.trafficStats
}
func (t *Tun2ray) ResetAppTraffics() {
if !t.trafficStats {
return
}
t.access.Lock()
var toDel []uint16
for uid, stat := range t.appStats {
atomic.StoreUint64(&stat.uplink, 0)
atomic.StoreUint64(&stat.downlink, 0)
atomic.StoreUint64(&stat.uplinkTotal, 0)
atomic.StoreUint64(&stat.downlinkTotal, 0)
if stat.tcpConn+stat.udpConn == 0 {
toDel = append(toDel, uid)
}
}
for _, uid := range toDel {
delete(t.appStats, uid)
}
t.access.Unlock()
}
func (t *Tun2ray) ReadAppTraffics(listener TrafficListener) error {
if !t.trafficStats {
return nil
}
var stats []*AppStats
t.access.Lock()
for uid, stat := range t.appStats {
export := &AppStats{
Uid: int32(uid),
TcpConn: stat.tcpConn,
UdpConn: stat.udpConn,
TcpConnTotal: int32(stat.tcpConnTotal),
UdpConnTotal: int32(stat.udpConnTotal),
DeactivateAt: int32(stat.deactivateAt),
}
uplink := atomic.SwapUint64(&stat.uplink, 0)
uplinkTotal := atomic.AddUint64(&stat.uplinkTotal, uplink)
export.Uplink = int64(uplink)
export.UplinkTotal = int64(uplinkTotal)
downlink := atomic.SwapUint64(&stat.downlink, 0)
downlinkTotal := atomic.AddUint64(&stat.downlinkTotal, downlink)
export.Downlink = int64(downlink)
export.DownlinkTotal = int64(downlinkTotal)
stats = append(stats, export)
}
t.access.Unlock()
for _, stat := range stats {
listener.UpdateStats(stat)
}
return nil
}
type statsConn struct {
net.Conn
uplink *uint64
downlink *uint64
}
func (c *statsConn) Read(b []byte) (n int, err error) {
n, err = c.Conn.Read(b)
defer atomic.AddUint64(c.uplink, uint64(n))
return
}
func (c *statsConn) Write(b []byte) (n int, err error) {
n, err = c.Conn.Write(b)
defer atomic.AddUint64(c.downlink, uint64(n))
return
}
type statsPacketConn struct {
packetConn
uplink *uint64
downlink *uint64
}
func (c statsPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
n, addr, err = c.packetConn.ReadFrom(p)
if err == nil {
atomic.AddUint64(c.downlink, uint64(n))
}
return
}
func (c statsPacketConn) readFrom() (p []byte, addr net.Addr, err error) {
p, addr, err = c.packetConn.readFrom()
if err == nil {
atomic.AddUint64(c.downlink, uint64(len(p)))
}
return
}
func (c statsPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
n, err = c.packetConn.WriteTo(p, addr)
if err == nil {
atomic.AddUint64(c.uplink, uint64(n))
}
return
}