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Improve: use atomic for connection statistic (#938)

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This commit is contained in:
gVisor bot 2020-09-02 16:34:12 +08:00
parent 1a4d0ab21c
commit e8603ddeb1
2 changed files with 23 additions and 28 deletions
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43
tunnel/manager.go
View file

@ -2,23 +2,19 @@ package tunnel
import (
"sync"
"sync/atomic"
"time"
)
var DefaultManager *Manager
func init() {
DefaultManager = &Manager{
upload: make(chan int64),
download: make(chan int64),
}
DefaultManager = &Manager{}
DefaultManager.handle()
}
type Manager struct {
connections sync.Map
upload chan int64
download chan int64
uploadTemp int64
downloadTemp int64
uploadBlip int64
@ -35,16 +31,18 @@ func (m *Manager) Leave(c tracker) {
m.connections.Delete(c.ID())
}
func (m *Manager) Upload() chan<- int64 {
return m.upload
func (m *Manager) PushUploaded(size int64) {
atomic.AddInt64(&m.uploadTemp, size)
atomic.AddInt64(&m.uploadTotal, size)
}
func (m *Manager) Download() chan<- int64 {
return m.download
func (m *Manager) PushDownloaded(size int64) {
atomic.AddInt64(&m.downloadTemp, size)
atomic.AddInt64(&m.downloadTotal, size)
}
func (m *Manager) Now() (up int64, down int64) {
return m.uploadBlip, m.downloadBlip
return atomic.LoadInt64(&m.uploadBlip), atomic.LoadInt64(&m.downloadBlip)
}
func (m *Manager) Snapshot() *Snapshot {
@ -55,8 +53,8 @@ func (m *Manager) Snapshot() *Snapshot {
})
return &Snapshot{
UploadTotal: m.uploadTotal,
DownloadTotal: m.downloadTotal,
UploadTotal: atomic.LoadInt64(&m.uploadTotal),
DownloadTotal: atomic.LoadInt64(&m.downloadTotal),
Connections: connections,
}
}
@ -71,21 +69,18 @@ func (m *Manager) ResetStatistic() {
}
func (m *Manager) handle() {
go m.handleCh(m.upload, &m.uploadTemp, &m.uploadBlip, &m.uploadTotal)
go m.handleCh(m.download, &m.downloadTemp, &m.downloadBlip, &m.downloadTotal)
go m.handleCh(&m.uploadTemp, &m.uploadBlip)
go m.handleCh(&m.downloadTemp, &m.downloadBlip)
}
func (m *Manager) handleCh(ch <-chan int64, temp *int64, blip *int64, total *int64) {
func (m *Manager) handleCh(temp *int64, blip *int64) {
ticker := time.NewTicker(time.Second)
for {
select {
case n := <-ch:
*temp += n
*total += n
case <-ticker.C:
*blip = *temp
*temp = 0
}
<-ticker.C
atomic.StoreInt64(blip, atomic.LoadInt64(temp))
atomic.StoreInt64(temp, 0)
}
}

8
tunnel/tracker.go
View file

@ -37,7 +37,7 @@ func (tt *tcpTracker) ID() string {
func (tt *tcpTracker) Read(b []byte) (int, error) {
n, err := tt.Conn.Read(b)
download := int64(n)
tt.manager.Download() <- download
tt.manager.PushDownloaded(download)
tt.DownloadTotal += download
return n, err
}
@ -45,7 +45,7 @@ func (tt *tcpTracker) Read(b []byte) (int, error) {
func (tt *tcpTracker) Write(b []byte) (int, error) {
n, err := tt.Conn.Write(b)
upload := int64(n)
tt.manager.Upload() <- upload
tt.manager.PushUploaded(upload)
tt.UploadTotal += upload
return n, err
}
@ -92,7 +92,7 @@ func (ut *udpTracker) ID() string {
func (ut *udpTracker) ReadFrom(b []byte) (int, net.Addr, error) {
n, addr, err := ut.PacketConn.ReadFrom(b)
download := int64(n)
ut.manager.Download() <- download
ut.manager.PushDownloaded(download)
ut.DownloadTotal += download
return n, addr, err
}
@ -100,7 +100,7 @@ func (ut *udpTracker) ReadFrom(b []byte) (int, net.Addr, error) {
func (ut *udpTracker) WriteTo(b []byte, addr net.Addr) (int, error) {
n, err := ut.PacketConn.WriteTo(b, addr)
upload := int64(n)
ut.manager.Upload() <- upload
ut.manager.PushUploaded(upload)
ut.UploadTotal += upload
return n, err
}