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perf: use msgio pooled buffers for received msgs #500

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Nov 19, 2022
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23 changes: 16 additions & 7 deletions comm.go
Original file line number Diff line number Diff line change
Expand Up @@ -6,14 +6,14 @@ import (
"io"
"time"

"github.com/gogo/protobuf/proto"

"github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/core/peer"

pb "github.com/libp2p/go-libp2p-pubsub/pb"

"github.com/libp2p/go-msgio"
"github.com/libp2p/go-msgio/protoio"

"github.com/gogo/protobuf/proto"
pb "github.com/libp2p/go-libp2p-pubsub/pb"
)

// get the initial RPC containing all of our subscriptions to send to new peers
Expand Down Expand Up @@ -60,11 +60,11 @@ func (p *PubSub) handleNewStream(s network.Stream) {
p.inboundStreamsMx.Unlock()
}()

r := protoio.NewDelimitedReader(s, p.maxMessageSize)
r := msgio.NewVarintReaderSize(s, p.maxMessageSize)
for {
rpc := new(RPC)
err := r.ReadMsg(&rpc.RPC)
msgbytes, err := r.ReadMsg()
if err != nil {
r.ReleaseMsg(msgbytes)
if err != io.EOF {
s.Reset()
log.Debugf("error reading rpc from %s: %s", s.Conn().RemotePeer(), err)
Expand All @@ -77,6 +77,15 @@ func (p *PubSub) handleNewStream(s network.Stream) {
return
}

rpc := new(RPC)
err = rpc.Unmarshal(msgbytes)
r.ReleaseMsg(msgbytes)
if err != nil {
s.Reset()
log.Warnf("bogus rpc from %s: %s", s.Conn().RemotePeer(), err)
return
}

rpc.from = peer
select {
case p.incoming <- rpc:
Expand Down