Update METADAPT-A and METADAPT-B accordingly

metadapta.go

@@ -4,7 +4,6 @@ import "io"
 import "fmt"
 import "net"
 import "sync"
-import "context"
 import "git.tebibyte.media/sashakoshka/hopp/tape"
 import "git.tebibyte.media/sashakoshka/go-util/sync"
 
@@ -24,6 +23,7 @@ type a struct {
 	sendLock     sync.Mutex
 	transMap     map[int64] *transA
 	transChan    chan *transA
+	done         chan struct { }
 	err          error
 }
 
@@ -35,12 +35,14 @@ func AdaptA(underlying net.Conn, party Party) Conn {
 		party:      party,
 		transMap:   make(map[int64] *transA),
 		transChan:  make(chan *transA),
+		done:       make(chan struct { }),
 	}
 	go conn.receive()
 	return conn
 }
 
 func (this *a) Close() error {
+	close(this.done)
 	return this.underlying.Close()
 }
 
@@ -61,12 +63,12 @@ func (this *a) OpenTrans() (Trans, error) {
 	return trans, nil
 }
 
-func (this *a) AcceptTrans(ctx context.Context) (Trans, error) {
+func (this *a) AcceptTrans() (Trans, error) {
 	select {
 	case trans := <- this.transChan:
 		return trans, nil
-	case <- ctx.Done():
+	case <- this.done:
-		return nil, ctx.Err()	
+		return nil, fmt.Errorf("could not accept transaction: %w", io.EOF)
 	}
 }
 

metadaptb.go

@@ -29,8 +29,8 @@ func (this *b) OpenTrans() (Trans, error) {
 	return transB { underlying: stream }, nil
 }
 
-func (this *b) AcceptTrans(ctx context.Context) (Trans, error) {
+func (this *b) AcceptTrans() (Trans, error) {
-	stream, err := this.underlying.AcceptStream(ctx)
+	stream, err := this.underlying.AcceptStream(context.Background())
 	if err != nil { return nil, err }
 	return transB { underlying: stream }, nil
 }