METADAPT-A message writer returns an error when the transaction closes

examples/ping/client/main.go

@@ -7,7 +7,7 @@ import "log"
 import "net"
 import "time"
 import "errors"
-import "context"
+// import "context"
 import "git.tebibyte.media/sashakoshka/hopp"
 import "git.tebibyte.media/sashakoshka/hopp/examples/ping"
 
@@ -59,7 +59,7 @@ func dial(address string) (hopp.Conn, error) {
 	// return conn, nil
 	underlying, err := net.Dial("tcp", address)
 	if err != nil { return nil, err }
-	conn := hopp.AdaptA(underlying, hopp.PartyClient)
+	conn := hopp.AdaptA(underlying, hopp.ServerSide)
 	return conn, nil
 }
 

metadapta.go

@@ -413,7 +413,7 @@ type writerA struct {
 }
 
 func (this *writerA) Write(data []byte) (n int, err error) {
-	if !this.open { return 0, io.EOF }
+	if !this.open || this.parent.closed.Load() { return 0, io.EOF }
 	toSend := data
 	for len(toSend) > 0 {
 		nn, err := this.writeOne(toSend)