Ori Newman fcae491e6d
[NOD-1286] Close router from netConnection.Disconnect (#881)
* [NOD-1286] Close router from netConnection.Disconnect

* [NOD-1286] Close router in grpc errors as well

* [NOD-1286] Fix typo

* [NOD-1286] Rename isConnected->isRouterClosed
2020-08-19 17:28:01 +03:00

102 lines
2.3 KiB
Go

package grpcserver
import (
"io"
"time"
routerpkg "github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
"github.com/pkg/errors"
"github.com/davecgh/go-spew/spew"
"github.com/kaspanet/kaspad/infrastructure/logger"
"github.com/kaspanet/kaspad/infrastructure/network/netadapter/server/grpcserver/protowire"
)
type grpcStream interface {
Send(*protowire.KaspadMessage) error
Recv() (*protowire.KaspadMessage, error)
}
func (c *gRPCConnection) connectionLoops() error {
errChan := make(chan error, 1) // buffered channel because one of the loops might try write after disconnect
spawn("gRPCConnection.receiveLoop", func() { errChan <- c.receiveLoop() })
spawn("gRPCConnection.sendLoop", func() { errChan <- c.sendLoop() })
err := <-errChan
c.Disconnect()
return err
}
func (c *gRPCConnection) sendLoop() error {
outgoingRoute := c.router.OutgoingRoute()
for c.IsConnected() {
message, err := outgoingRoute.Dequeue()
if err != nil {
if errors.Is(err, routerpkg.ErrRouteClosed) {
return nil
}
return err
}
log.Debugf("outgoing '%s' message to %s", message.Command(), c)
log.Tracef("outgoing '%s' message to %s: %s", message.Command(), c, logger.NewLogClosure(func() string {
return spew.Sdump(message)
}))
messageProto, err := protowire.FromAppMessage(message)
if err != nil {
return err
}
err = c.stream.Send(messageProto)
if err != nil {
return err
}
}
return nil
}
func (c *gRPCConnection) receiveLoop() error {
messageNumber := uint64(0)
for c.IsConnected() {
protoMessage, err := c.stream.Recv()
if err != nil {
if err == io.EOF {
err = nil
}
return err
}
message, err := protoMessage.ToAppMessage()
if err != nil {
c.onInvalidMessageHandler(err)
return err
}
messageNumber++
message.SetMessageNumber(messageNumber)
message.SetReceivedAt(time.Now())
log.Debugf("incoming '%s' message from %s (message number %d)", message.Command(), c,
message.MessageNumber())
log.Tracef("incoming '%s' message from %s (message number %d): %s", message.Command(),
c, message.MessageNumber(), logger.NewLogClosure(func() string {
return spew.Sdump(message)
}))
err = c.router.EnqueueIncomingMessage(message)
if err != nil {
if errors.Is(err, routerpkg.ErrRouteClosed) {
return nil
}
c.onInvalidMessageHandler(err)
return err
}
}
return nil
}