implement a map for outgoing streams

streams_map_outgoing_bidi.go

@@ -0,0 +1,72 @@
+// This file was automatically generated by genny.
+// Any changes will be lost if this file is regenerated.
+// see https://github.com/cheekybits/genny
+
+package quic
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/lucas-clemente/quic-go/qerr"
+)
+
+type outgoingBidiStreamsMap struct {
+	mutex sync.RWMutex
+
+	streams map[protocol.StreamID]streamI
+
+	nextStream protocol.StreamID
+	newStream  func(protocol.StreamID) streamI
+
+	closeErr error
+}
+
+func newOutgoingBidiStreamsMap(nextStream protocol.StreamID, newStream func(protocol.StreamID) streamI) *outgoingBidiStreamsMap {
+	return &outgoingBidiStreamsMap{
+		streams:    make(map[protocol.StreamID]streamI),
+		nextStream: nextStream,
+		newStream:  newStream,
+	}
+}
+
+func (m *outgoingBidiStreamsMap) OpenStream() (streamI, error) {
+	m.mutex.Lock()
+	defer m.mutex.Unlock()
+
+	if m.closeErr != nil {
+		return nil, m.closeErr
+	}
+	s := m.newStream(m.nextStream)
+	m.streams[m.nextStream] = s
+	m.nextStream += 4
+	return s, nil
+}
+
+func (m *outgoingBidiStreamsMap) GetStream(id protocol.StreamID) (streamI, error) {
+	if id >= m.nextStream {
+		return nil, qerr.Error(qerr.InvalidStreamID, fmt.Sprintf("peer attempted to open stream %d", id))
+	}
+	m.mutex.RLock()
+	s := m.streams[id]
+	m.mutex.RUnlock()
+	return s, nil
+}
+
+func (m *outgoingBidiStreamsMap) DeleteStream(id protocol.StreamID) error {
+	m.mutex.Lock()
+	defer m.mutex.Unlock()
+
+	if _, ok := m.streams[id]; !ok {
+		return fmt.Errorf("Tried to delete unknown stream %d", id)
+	}
+	delete(m.streams, id)
+	return nil
+}
+
+func (m *outgoingBidiStreamsMap) CloseWithError(err error) {
+	m.mutex.Lock()
+	m.closeErr = err
+	m.mutex.Unlock()
+}