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snmp.go
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snmp.go
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package kcp
import "sync/atomic"
// Snmp defines network statistics indicator
type Snmp struct {
BytesSent uint64 // payload bytes sent
BytesReceived uint64
MaxConn uint64
ActiveOpens uint64
PassiveOpens uint64
CurrEstab uint64
InErrs uint64
InCsumErrors uint64 // checksum errors
InSegs uint64
OutSegs uint64
OutBytes uint64 // udp bytes sent
RetransSegs uint64
FastRetransSegs uint64
EarlyRetransSegs uint64
LostSegs uint64
RepeatSegs uint64
FECRecovered uint64
FECErrs uint64
FECSegs uint64 // fec segments received
}
func newSnmp() *Snmp {
return new(Snmp)
}
// Copy make a copy of current snmp snapshot
func (s *Snmp) Copy() *Snmp {
d := newSnmp()
d.BytesSent = atomic.LoadUint64(&s.BytesSent)
d.BytesReceived = atomic.LoadUint64(&s.BytesReceived)
d.MaxConn = atomic.LoadUint64(&s.MaxConn)
d.ActiveOpens = atomic.LoadUint64(&s.ActiveOpens)
d.PassiveOpens = atomic.LoadUint64(&s.PassiveOpens)
d.CurrEstab = atomic.LoadUint64(&s.CurrEstab)
d.InErrs = atomic.LoadUint64(&s.InErrs)
d.InCsumErrors = atomic.LoadUint64(&s.InCsumErrors)
d.InSegs = atomic.LoadUint64(&s.InSegs)
d.OutSegs = atomic.LoadUint64(&s.OutSegs)
d.OutBytes = atomic.LoadUint64(&s.OutBytes)
d.RetransSegs = atomic.LoadUint64(&s.RetransSegs)
d.FastRetransSegs = atomic.LoadUint64(&s.FastRetransSegs)
d.EarlyRetransSegs = atomic.LoadUint64(&s.EarlyRetransSegs)
d.LostSegs = atomic.LoadUint64(&s.LostSegs)
d.RepeatSegs = atomic.LoadUint64(&s.RepeatSegs)
d.FECSegs = atomic.LoadUint64(&s.FECSegs)
d.FECErrs = atomic.LoadUint64(&s.FECErrs)
d.FECRecovered = atomic.LoadUint64(&s.FECRecovered)
return d
}
// DefaultSnmp is the global KCP connection statistics collector
var DefaultSnmp *Snmp
func init() {
DefaultSnmp = newSnmp()
}