remove the Range method in the streamsMap

streamsMap.Range was only used to pass the stream flow control window to
all open streams after receiving the peer's transport parameters. It's
easier to pass the transport parameters to the streamsMap directly.

streams_map.go

@@ -5,8 +5,10 @@ import (
 	"fmt"
 	"sync"
 
+	"github.com/lucas-clemente/quic-go/internal/handshake"
 	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
+	"github.com/lucas-clemente/quic-go/internal/wire"
 	"github.com/lucas-clemente/quic-go/qerr"
 )
 
@@ -225,16 +227,6 @@ func (m *streamsMap) DeleteStream(id protocol.StreamID) error {
 	return nil
 }
 
-// Range executes a callback for all streams, in pseudo-random order
-func (m *streamsMap) Range(cb func(s streamI)) {
-	m.mutex.RLock()
-	defer m.mutex.RUnlock()
-
-	for _, s := range m.streams {
-		cb(s)
-	}
-}
-
 func (m *streamsMap) putStream(s streamI) error {
 	id := s.StreamID()
 	if _, ok := m.streams[id]; ok {
@@ -255,9 +247,16 @@ func (m *streamsMap) CloseWithError(err error) {
 	}
 }
 
-func (m *streamsMap) UpdateMaxStreamLimit(limit uint32) {
+// TODO(#952): this won't be needed when gQUIC supports stateless handshakes
+func (m *streamsMap) UpdateLimits(params *handshake.TransportParameters) {
 	m.mutex.Lock()
-	defer m.mutex.Unlock()
-	m.maxOutgoingStreams = limit
+	m.maxOutgoingStreams = params.MaxStreams
+	for id, str := range m.streams {
+		str.handleMaxStreamDataFrame(&wire.MaxStreamDataFrame{
+			StreamID:   id,
+			ByteOffset: params.StreamFlowControlWindow,
+		})
+	}
+	m.mutex.Unlock()
 	m.openStreamOrErrCond.Broadcast()
 }