mirror of https://gogs.blitter.com/RLabs/xs
165 lines
5.2 KiB
Go
165 lines
5.2 KiB
Go
package kcp
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import (
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"fmt"
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"sync/atomic"
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)
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// Snmp defines network statistics indicator
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type Snmp struct {
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BytesSent uint64 // bytes sent from upper level
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BytesReceived uint64 // bytes received to upper level
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MaxConn uint64 // max number of connections ever reached
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ActiveOpens uint64 // accumulated active open connections
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PassiveOpens uint64 // accumulated passive open connections
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CurrEstab uint64 // current number of established connections
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InErrs uint64 // UDP read errors reported from net.PacketConn
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InCsumErrors uint64 // checksum errors from CRC32
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KCPInErrors uint64 // packet iput errors reported from KCP
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InPkts uint64 // incoming packets count
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OutPkts uint64 // outgoing packets count
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InSegs uint64 // incoming KCP segments
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OutSegs uint64 // outgoing KCP segments
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InBytes uint64 // UDP bytes received
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OutBytes uint64 // UDP bytes sent
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RetransSegs uint64 // accmulated retransmited segments
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FastRetransSegs uint64 // accmulated fast retransmitted segments
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EarlyRetransSegs uint64 // accmulated early retransmitted segments
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LostSegs uint64 // number of segs infered as lost
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RepeatSegs uint64 // number of segs duplicated
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FECRecovered uint64 // correct packets recovered from FEC
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FECErrs uint64 // incorrect packets recovered from FEC
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FECParityShards uint64 // FEC segments received
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FECShortShards uint64 // number of data shards that's not enough for recovery
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}
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func newSnmp() *Snmp {
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return new(Snmp)
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}
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// Header returns all field names
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func (s *Snmp) Header() []string {
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return []string{
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"BytesSent",
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"BytesReceived",
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"MaxConn",
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"ActiveOpens",
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"PassiveOpens",
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"CurrEstab",
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"InErrs",
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"InCsumErrors",
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"KCPInErrors",
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"InPkts",
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"OutPkts",
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"InSegs",
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"OutSegs",
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"InBytes",
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"OutBytes",
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"RetransSegs",
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"FastRetransSegs",
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"EarlyRetransSegs",
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"LostSegs",
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"RepeatSegs",
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"FECParityShards",
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"FECErrs",
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"FECRecovered",
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"FECShortShards",
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}
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}
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// ToSlice returns current snmp info as slice
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func (s *Snmp) ToSlice() []string {
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snmp := s.Copy()
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return []string{
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fmt.Sprint(snmp.BytesSent),
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fmt.Sprint(snmp.BytesReceived),
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fmt.Sprint(snmp.MaxConn),
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fmt.Sprint(snmp.ActiveOpens),
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fmt.Sprint(snmp.PassiveOpens),
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fmt.Sprint(snmp.CurrEstab),
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fmt.Sprint(snmp.InErrs),
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fmt.Sprint(snmp.InCsumErrors),
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fmt.Sprint(snmp.KCPInErrors),
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fmt.Sprint(snmp.InPkts),
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fmt.Sprint(snmp.OutPkts),
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fmt.Sprint(snmp.InSegs),
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fmt.Sprint(snmp.OutSegs),
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fmt.Sprint(snmp.InBytes),
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fmt.Sprint(snmp.OutBytes),
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fmt.Sprint(snmp.RetransSegs),
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fmt.Sprint(snmp.FastRetransSegs),
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fmt.Sprint(snmp.EarlyRetransSegs),
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fmt.Sprint(snmp.LostSegs),
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fmt.Sprint(snmp.RepeatSegs),
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fmt.Sprint(snmp.FECParityShards),
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fmt.Sprint(snmp.FECErrs),
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fmt.Sprint(snmp.FECRecovered),
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fmt.Sprint(snmp.FECShortShards),
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}
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}
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// Copy make a copy of current snmp snapshot
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func (s *Snmp) Copy() *Snmp {
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d := newSnmp()
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d.BytesSent = atomic.LoadUint64(&s.BytesSent)
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d.BytesReceived = atomic.LoadUint64(&s.BytesReceived)
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d.MaxConn = atomic.LoadUint64(&s.MaxConn)
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d.ActiveOpens = atomic.LoadUint64(&s.ActiveOpens)
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d.PassiveOpens = atomic.LoadUint64(&s.PassiveOpens)
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d.CurrEstab = atomic.LoadUint64(&s.CurrEstab)
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d.InErrs = atomic.LoadUint64(&s.InErrs)
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d.InCsumErrors = atomic.LoadUint64(&s.InCsumErrors)
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d.KCPInErrors = atomic.LoadUint64(&s.KCPInErrors)
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d.InPkts = atomic.LoadUint64(&s.InPkts)
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d.OutPkts = atomic.LoadUint64(&s.OutPkts)
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d.InSegs = atomic.LoadUint64(&s.InSegs)
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d.OutSegs = atomic.LoadUint64(&s.OutSegs)
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d.InBytes = atomic.LoadUint64(&s.InBytes)
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d.OutBytes = atomic.LoadUint64(&s.OutBytes)
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d.RetransSegs = atomic.LoadUint64(&s.RetransSegs)
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d.FastRetransSegs = atomic.LoadUint64(&s.FastRetransSegs)
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d.EarlyRetransSegs = atomic.LoadUint64(&s.EarlyRetransSegs)
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d.LostSegs = atomic.LoadUint64(&s.LostSegs)
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d.RepeatSegs = atomic.LoadUint64(&s.RepeatSegs)
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d.FECParityShards = atomic.LoadUint64(&s.FECParityShards)
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d.FECErrs = atomic.LoadUint64(&s.FECErrs)
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d.FECRecovered = atomic.LoadUint64(&s.FECRecovered)
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d.FECShortShards = atomic.LoadUint64(&s.FECShortShards)
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return d
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}
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// Reset values to zero
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func (s *Snmp) Reset() {
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atomic.StoreUint64(&s.BytesSent, 0)
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atomic.StoreUint64(&s.BytesReceived, 0)
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atomic.StoreUint64(&s.MaxConn, 0)
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atomic.StoreUint64(&s.ActiveOpens, 0)
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atomic.StoreUint64(&s.PassiveOpens, 0)
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atomic.StoreUint64(&s.CurrEstab, 0)
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atomic.StoreUint64(&s.InErrs, 0)
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atomic.StoreUint64(&s.InCsumErrors, 0)
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atomic.StoreUint64(&s.KCPInErrors, 0)
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atomic.StoreUint64(&s.InPkts, 0)
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atomic.StoreUint64(&s.OutPkts, 0)
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atomic.StoreUint64(&s.InSegs, 0)
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atomic.StoreUint64(&s.OutSegs, 0)
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atomic.StoreUint64(&s.InBytes, 0)
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atomic.StoreUint64(&s.OutBytes, 0)
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atomic.StoreUint64(&s.RetransSegs, 0)
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atomic.StoreUint64(&s.FastRetransSegs, 0)
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atomic.StoreUint64(&s.EarlyRetransSegs, 0)
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atomic.StoreUint64(&s.LostSegs, 0)
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atomic.StoreUint64(&s.RepeatSegs, 0)
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atomic.StoreUint64(&s.FECParityShards, 0)
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atomic.StoreUint64(&s.FECErrs, 0)
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atomic.StoreUint64(&s.FECRecovered, 0)
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atomic.StoreUint64(&s.FECShortShards, 0)
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}
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// DefaultSnmp is the global KCP connection statistics collector
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var DefaultSnmp *Snmp
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func init() {
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DefaultSnmp = newSnmp()
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}
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