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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package eth
import (
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/p2p"
)
var (
propTxnInPacketsMeter = metrics.NewMeter("eth/prop/txns/in/packets")
propTxnInTrafficMeter = metrics.NewMeter("eth/prop/txns/in/traffic")
propTxnOutPacketsMeter = metrics.NewMeter("eth/prop/txns/out/packets")
propTxnOutTrafficMeter = metrics.NewMeter("eth/prop/txns/out/traffic")
propHashInPacketsMeter = metrics.NewMeter("eth/prop/hashes/in/packets")
propHashInTrafficMeter = metrics.NewMeter("eth/prop/hashes/in/traffic")
propHashOutPacketsMeter = metrics.NewMeter("eth/prop/hashes/out/packets")
propHashOutTrafficMeter = metrics.NewMeter("eth/prop/hashes/out/traffic")
propBlockInPacketsMeter = metrics.NewMeter("eth/prop/blocks/in/packets")
propBlockInTrafficMeter = metrics.NewMeter("eth/prop/blocks/in/traffic")
propBlockOutPacketsMeter = metrics.NewMeter("eth/prop/blocks/out/packets")
propBlockOutTrafficMeter = metrics.NewMeter("eth/prop/blocks/out/traffic")
reqHashInPacketsMeter = metrics.NewMeter("eth/req/hashes/in/packets")
reqHashInTrafficMeter = metrics.NewMeter("eth/req/hashes/in/traffic")
reqHashOutPacketsMeter = metrics.NewMeter("eth/req/hashes/out/packets")
reqHashOutTrafficMeter = metrics.NewMeter("eth/req/hashes/out/traffic")
reqBlockInPacketsMeter = metrics.NewMeter("eth/req/blocks/in/packets")
reqBlockInTrafficMeter = metrics.NewMeter("eth/req/blocks/in/traffic")
reqBlockOutPacketsMeter = metrics.NewMeter("eth/req/blocks/out/packets")
reqBlockOutTrafficMeter = metrics.NewMeter("eth/req/blocks/out/traffic")
reqHeaderInPacketsMeter = metrics.NewMeter("eth/req/header/in/packets")
reqHeaderInTrafficMeter = metrics.NewMeter("eth/req/header/in/traffic")
reqHeaderOutPacketsMeter = metrics.NewMeter("eth/req/header/out/packets")
reqHeaderOutTrafficMeter = metrics.NewMeter("eth/req/header/out/traffic")
reqStateInPacketsMeter = metrics.NewMeter("eth/req/state/in/packets")
reqStateInTrafficMeter = metrics.NewMeter("eth/req/state/in/traffic")
reqStateOutPacketsMeter = metrics.NewMeter("eth/req/state/out/packets")
reqStateOutTrafficMeter = metrics.NewMeter("eth/req/state/out/traffic")
miscInPacketsMeter = metrics.NewMeter("eth/misc/in/packets")
miscInTrafficMeter = metrics.NewMeter("eth/misc/in/traffic")
miscOutPacketsMeter = metrics.NewMeter("eth/misc/out/packets")
miscOutTrafficMeter = metrics.NewMeter("eth/misc/out/traffic")
)
// meteredMsgReadWriter is a wrapper around a p2p.MsgReadWriter, capable of
// accumulating the above defined metrics based on the data stream contents.
type meteredMsgReadWriter struct {
p2p.MsgReadWriter
}
// newMeteredMsgWriter wraps a p2p MsgReadWriter with metering support. If the
// metrics system is disabled, this fucntion returns the original object.
func newMeteredMsgWriter(rw p2p.MsgReadWriter) p2p.MsgReadWriter {
if !metrics.Enabled {
return rw
}
return &meteredMsgReadWriter{rw}
}
func (rw *meteredMsgReadWriter) ReadMsg() (p2p.Msg, error) {
// Read the message and short circuit in case of an error
msg, err := rw.MsgReadWriter.ReadMsg()
if err != nil {
return msg, err
}
// Account for the data traffic
packets, traffic := miscInPacketsMeter, miscInTrafficMeter
switch msg.Code {
case BlockHashesMsg:
packets, traffic = reqHashInPacketsMeter, reqHashInTrafficMeter
case BlocksMsg:
packets, traffic = reqBlockInPacketsMeter, reqBlockInTrafficMeter
case BlockHeadersMsg:
packets, traffic = reqHeaderInPacketsMeter, reqHeaderInTrafficMeter
case NodeDataMsg:
packets, traffic = reqStateInPacketsMeter, reqStateInTrafficMeter
case NewBlockHashesMsg:
packets, traffic = propHashInPacketsMeter, propHashInTrafficMeter
case NewBlockMsg:
packets, traffic = propBlockInPacketsMeter, propBlockInTrafficMeter
case TxMsg:
packets, traffic = propTxnInPacketsMeter, propTxnInTrafficMeter
}
packets.Mark(1)
traffic.Mark(int64(msg.Size))
return msg, err
}
func (rw *meteredMsgReadWriter) WriteMsg(msg p2p.Msg) error {
// Account for the data traffic
packets, traffic := miscOutPacketsMeter, miscOutTrafficMeter
switch msg.Code {
case BlockHashesMsg:
packets, traffic = reqHashOutPacketsMeter, reqHashOutTrafficMeter
case BlocksMsg:
packets, traffic = reqBlockOutPacketsMeter, reqBlockOutTrafficMeter
case BlockHeadersMsg:
packets, traffic = reqHeaderOutPacketsMeter, reqHeaderOutTrafficMeter
case NodeDataMsg:
packets, traffic = reqStateOutPacketsMeter, reqStateOutTrafficMeter
case NewBlockHashesMsg:
packets, traffic = propHashOutPacketsMeter, propHashOutTrafficMeter
case NewBlockMsg:
packets, traffic = propBlockOutPacketsMeter, propBlockOutTrafficMeter
case TxMsg:
packets, traffic = propTxnOutPacketsMeter, propTxnOutTrafficMeter
}
packets.Mark(1)
traffic.Mark(int64(msg.Size))
// Send the packet to the p2p layer
return rw.MsgReadWriter.WriteMsg(msg)
}
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