logos-messaging/go-libp2p-pubsub
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perf: use pooled buffers for message writes (#507)

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Hlib Kanunnikov 2022-11-19 15:59:45 +01:00 committed by GitHub
parent 9c56b2deca
commit aed7fc42c1
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1 changed files with 13 additions and 7 deletions
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20
comm.go
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@ -1,12 +1,14 @@
package pubsub package pubsub
import ( import (
"bufio"
"context" "context"
"encoding/binary"
"io" "io"
"time" "time"
"github.com/gogo/protobuf/proto" "github.com/gogo/protobuf/proto"
pool "github.com/libp2p/go-buffer-pool"
"github.com/multiformats/go-varint"
"github.com/libp2p/go-libp2p/core/network" "github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/core/peer" "github.com/libp2p/go-libp2p/core/peer"
@ -156,16 +158,20 @@ func (p *PubSub) handlePeerEOF(ctx context.Context, s network.Stream) {
} }
func (p *PubSub) handleSendingMessages(ctx context.Context, s network.Stream, outgoing <-chan *RPC) { func (p *PubSub) handleSendingMessages(ctx context.Context, s network.Stream, outgoing <-chan *RPC) {
bufw := bufio.NewWriter(s) writeRpc := func(rpc *RPC) error {
wc := protoio.NewDelimitedWriter(bufw) size := uint64(rpc.Size())
writeMsg := func(msg proto.Message) error { buf := pool.Get(varint.UvarintSize(size) + int(size))
err := wc.WriteMsg(msg) defer pool.Put(buf)
n := binary.PutUvarint(buf, size)
_, err := rpc.MarshalTo(buf[n:])
if err != nil { if err != nil {
return err return err
} }
return bufw.Flush() _, err = s.Write(buf)
return err
} }
defer s.Close() defer s.Close()
@ -176,7 +182,7 @@ func (p *PubSub) handleSendingMessages(ctx context.Context, s network.Stream, ou
return return
} }
err := writeMsg(&rpc.RPC) err := writeRpc(rpc)
if err != nil { if err != nil {
s.Reset() s.Reset()
log.Debugf("writing message to %s: %s", s.Conn().RemotePeer(), err) log.Debugf("writing message to %s: %s", s.Conn().RemotePeer(), err)