50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
// Contains the meters and timers used by the networking layer.
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package p2p
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import (
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"net"
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"github.com/ethereum/go-ethereum/metrics"
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)
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var (
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ingressConnectMeter = metrics.NewMeter("p2p/InboundConnects")
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ingressTrafficMeter = metrics.NewMeter("p2p/InboundTraffic")
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egressConnectMeter = metrics.NewMeter("p2p/OutboundConnects")
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egressTrafficMeter = metrics.NewMeter("p2p/OutboundTraffic")
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)
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// meteredConn is a wrapper around a network TCP connection that meters both the
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// inbound and outbound network traffic.
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type meteredConn struct {
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*net.TCPConn // Network connection to wrap with metering
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}
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// newMeteredConn creates a new metered connection, also bumping the ingress or
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// egress connection meter.
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func newMeteredConn(conn net.Conn, ingress bool) net.Conn {
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if ingress {
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ingressConnectMeter.Mark(1)
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} else {
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egressConnectMeter.Mark(1)
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}
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return &meteredConn{conn.(*net.TCPConn)}
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}
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// Read delegates a network read to the underlying connection, bumping the ingress
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// traffic meter along the way.
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func (c *meteredConn) Read(b []byte) (n int, err error) {
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n, err = c.TCPConn.Read(b)
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ingressTrafficMeter.Mark(int64(n))
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return
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}
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// Write delegates a network write to the underlying connection, bumping the
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// egress traffic meter along the way.
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func (c *meteredConn) Write(b []byte) (n int, err error) {
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n, err = c.TCPConn.Write(b)
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egressTrafficMeter.Mark(int64(n))
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return
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}
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