158 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			158 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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	"github.com/ethereum/go-ethereum/metrics"
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	"github.com/ethereum/go-ethereum/p2p"
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)
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var (
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	propTxnInPacketsMeter     = metrics.NewMeter("eth/prop/txns/in/packets")
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	propTxnInTrafficMeter     = metrics.NewMeter("eth/prop/txns/in/traffic")
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	propTxnOutPacketsMeter    = metrics.NewMeter("eth/prop/txns/out/packets")
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	propTxnOutTrafficMeter    = metrics.NewMeter("eth/prop/txns/out/traffic")
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	propHashInPacketsMeter    = metrics.NewMeter("eth/prop/hashes/in/packets")
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	propHashInTrafficMeter    = metrics.NewMeter("eth/prop/hashes/in/traffic")
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	propHashOutPacketsMeter   = metrics.NewMeter("eth/prop/hashes/out/packets")
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	propHashOutTrafficMeter   = metrics.NewMeter("eth/prop/hashes/out/traffic")
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	propBlockInPacketsMeter   = metrics.NewMeter("eth/prop/blocks/in/packets")
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	propBlockInTrafficMeter   = metrics.NewMeter("eth/prop/blocks/in/traffic")
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	propBlockOutPacketsMeter  = metrics.NewMeter("eth/prop/blocks/out/packets")
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	propBlockOutTrafficMeter  = metrics.NewMeter("eth/prop/blocks/out/traffic")
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	reqHashInPacketsMeter     = metrics.NewMeter("eth/req/hashes/in/packets")
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	reqHashInTrafficMeter     = metrics.NewMeter("eth/req/hashes/in/traffic")
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	reqHashOutPacketsMeter    = metrics.NewMeter("eth/req/hashes/out/packets")
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	reqHashOutTrafficMeter    = metrics.NewMeter("eth/req/hashes/out/traffic")
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	reqBlockInPacketsMeter    = metrics.NewMeter("eth/req/blocks/in/packets")
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	reqBlockInTrafficMeter    = metrics.NewMeter("eth/req/blocks/in/traffic")
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	reqBlockOutPacketsMeter   = metrics.NewMeter("eth/req/blocks/out/packets")
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	reqBlockOutTrafficMeter   = metrics.NewMeter("eth/req/blocks/out/traffic")
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	reqHeaderInPacketsMeter   = metrics.NewMeter("eth/req/headers/in/packets")
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	reqHeaderInTrafficMeter   = metrics.NewMeter("eth/req/headers/in/traffic")
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	reqHeaderOutPacketsMeter  = metrics.NewMeter("eth/req/headers/out/packets")
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	reqHeaderOutTrafficMeter  = metrics.NewMeter("eth/req/headers/out/traffic")
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	reqBodyInPacketsMeter     = metrics.NewMeter("eth/req/bodies/in/packets")
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	reqBodyInTrafficMeter     = metrics.NewMeter("eth/req/bodies/in/traffic")
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	reqBodyOutPacketsMeter    = metrics.NewMeter("eth/req/bodies/out/packets")
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	reqBodyOutTrafficMeter    = metrics.NewMeter("eth/req/bodies/out/traffic")
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	reqStateInPacketsMeter    = metrics.NewMeter("eth/req/states/in/packets")
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	reqStateInTrafficMeter    = metrics.NewMeter("eth/req/states/in/traffic")
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	reqStateOutPacketsMeter   = metrics.NewMeter("eth/req/states/out/packets")
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	reqStateOutTrafficMeter   = metrics.NewMeter("eth/req/states/out/traffic")
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	reqReceiptInPacketsMeter  = metrics.NewMeter("eth/req/receipts/in/packets")
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	reqReceiptInTrafficMeter  = metrics.NewMeter("eth/req/receipts/in/traffic")
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	reqReceiptOutPacketsMeter = metrics.NewMeter("eth/req/receipts/out/packets")
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	reqReceiptOutTrafficMeter = metrics.NewMeter("eth/req/receipts/out/traffic")
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	miscInPacketsMeter        = metrics.NewMeter("eth/misc/in/packets")
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	miscInTrafficMeter        = metrics.NewMeter("eth/misc/in/traffic")
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	miscOutPacketsMeter       = metrics.NewMeter("eth/misc/out/packets")
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	miscOutTrafficMeter       = metrics.NewMeter("eth/misc/out/traffic")
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)
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// meteredMsgReadWriter is a wrapper around a p2p.MsgReadWriter, capable of
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// accumulating the above defined metrics based on the data stream contents.
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type meteredMsgReadWriter struct {
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	p2p.MsgReadWriter     // Wrapped message stream to meter
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	version           int // Protocol version to select correct meters
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}
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// newMeteredMsgWriter wraps a p2p MsgReadWriter with metering support. If the
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// metrics system is disabled, this function returns the original object.
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func newMeteredMsgWriter(rw p2p.MsgReadWriter) p2p.MsgReadWriter {
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	if !metrics.Enabled {
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		return rw
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	}
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	return &meteredMsgReadWriter{MsgReadWriter: rw}
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}
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// Init sets the protocol version used by the stream to know which meters to
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// increment in case of overlapping message ids between protocol versions.
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func (rw *meteredMsgReadWriter) Init(version int) {
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	rw.version = version
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}
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func (rw *meteredMsgReadWriter) ReadMsg() (p2p.Msg, error) {
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	// Read the message and short circuit in case of an error
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	msg, err := rw.MsgReadWriter.ReadMsg()
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	if err != nil {
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		return msg, err
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	}
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	// Account for the data traffic
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	packets, traffic := miscInPacketsMeter, miscInTrafficMeter
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	switch {
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	case rw.version < eth62 && msg.Code == BlockHashesMsg:
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		packets, traffic = reqHashInPacketsMeter, reqHashInTrafficMeter
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	case rw.version < eth62 && msg.Code == BlocksMsg:
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		packets, traffic = reqBlockInPacketsMeter, reqBlockInTrafficMeter
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	case rw.version >= eth62 && msg.Code == BlockHeadersMsg:
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		packets, traffic = reqHeaderInPacketsMeter, reqHeaderInTrafficMeter
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	case rw.version >= eth62 && msg.Code == BlockBodiesMsg:
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		packets, traffic = reqBodyInPacketsMeter, reqBodyInTrafficMeter
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	case rw.version >= eth63 && msg.Code == NodeDataMsg:
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		packets, traffic = reqStateInPacketsMeter, reqStateInTrafficMeter
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	case rw.version >= eth63 && msg.Code == ReceiptsMsg:
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		packets, traffic = reqReceiptInPacketsMeter, reqReceiptInTrafficMeter
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	case msg.Code == NewBlockHashesMsg:
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		packets, traffic = propHashInPacketsMeter, propHashInTrafficMeter
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	case msg.Code == NewBlockMsg:
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		packets, traffic = propBlockInPacketsMeter, propBlockInTrafficMeter
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	case msg.Code == TxMsg:
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		packets, traffic = propTxnInPacketsMeter, propTxnInTrafficMeter
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	}
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	packets.Mark(1)
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	traffic.Mark(int64(msg.Size))
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	return msg, err
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}
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func (rw *meteredMsgReadWriter) WriteMsg(msg p2p.Msg) error {
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	// Account for the data traffic
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	packets, traffic := miscOutPacketsMeter, miscOutTrafficMeter
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	switch {
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	case rw.version < eth62 && msg.Code == BlockHashesMsg:
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		packets, traffic = reqHashOutPacketsMeter, reqHashOutTrafficMeter
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	case rw.version < eth62 && msg.Code == BlocksMsg:
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		packets, traffic = reqBlockOutPacketsMeter, reqBlockOutTrafficMeter
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	case rw.version >= eth62 && msg.Code == BlockHeadersMsg:
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		packets, traffic = reqHeaderOutPacketsMeter, reqHeaderOutTrafficMeter
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	case rw.version >= eth62 && msg.Code == BlockBodiesMsg:
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		packets, traffic = reqBodyOutPacketsMeter, reqBodyOutTrafficMeter
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	case rw.version >= eth63 && msg.Code == NodeDataMsg:
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		packets, traffic = reqStateOutPacketsMeter, reqStateOutTrafficMeter
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	case rw.version >= eth63 && msg.Code == ReceiptsMsg:
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		packets, traffic = reqReceiptOutPacketsMeter, reqReceiptOutTrafficMeter
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	case msg.Code == NewBlockHashesMsg:
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		packets, traffic = propHashOutPacketsMeter, propHashOutTrafficMeter
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	case msg.Code == NewBlockMsg:
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		packets, traffic = propBlockOutPacketsMeter, propBlockOutTrafficMeter
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	case msg.Code == TxMsg:
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		packets, traffic = propTxnOutPacketsMeter, propTxnOutTrafficMeter
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	}
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	packets.Mark(1)
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	traffic.Mark(int64(msg.Size))
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	// Send the packet to the p2p layer
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	return rw.MsgReadWriter.WriteMsg(msg)
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}
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