always allow new data be received if the recvWindow is > 0

libp2p/muxers/yamux/yamux.nim

@@ -45,7 +45,7 @@ type
     Ping = 0x2
     GoAway = 0x3
 
-  MsgFlags {.size: 2.} = enum
+  MsgFlags* {.size: 2.} = enum
     Syn
     Ack
     Fin
@@ -56,14 +56,14 @@ type
     ProtocolError = 0x1,
     InternalError = 0x2,
 
-  YamuxHeader = object
+  YamuxHeader* = object
     version: uint8
     msgType: MsgType
     flags: set[MsgFlags]
     streamId: uint32
     length: uint32
 
-proc readHeader(
+proc readHeader*(
     conn: LPStream
 ): Future[YamuxHeader] {.async: (raises: [
     CancelledError, LPStreamError, MuxerError]).} =
@@ -92,7 +92,7 @@ proc encode(header: YamuxHeader): array[12, byte] =
   result[4..7] = toBytesBE(header.streamId)
   result[8..11] = toBytesBE(header.length)
 
-proc write(
+proc write*(
     conn: LPStream,
     header: YamuxHeader
 ): Future[void] {.async: (raises: [
@@ -116,7 +116,7 @@ proc goAway(T: type[YamuxHeader], status: GoAwayStatus): T =
     length: uint32(status)
   )
 
-proc data(
+proc data*(
     T: type[YamuxHeader],
     streamId: uint32,
     length: uint32 = 0,
@@ -129,7 +129,7 @@ proc data(
     streamId: streamId
   )
 
-proc windowUpdate(
+proc windowUpdate*(
     T: type[YamuxHeader],
     streamId: uint32,
     delta: uint32,
@@ -148,12 +148,12 @@ type
     sent: int
     fut: Future[void].Raising([CancelledError, LPStreamError])
   YamuxChannel* = ref object of Connection
-    id: uint32
+    id*: uint32
     recvWindow: int
     sendWindow: int
     maxRecvWindow: int
     maxSendQueueSize: int
-    conn: Connection
+    conn*: Connection
     isSrc: bool
     opened: bool
     isSending: bool
@@ -204,6 +204,7 @@ proc remoteClosed(channel: YamuxChannel) {.async: (raises: []).} =
 
 method closeImpl*(channel: YamuxChannel) {.async: (raises: []).} =
   if not channel.closedLocally:
+    trace "Closing yamux channel locally", streamId = channel.id, conn = channel.conn
     channel.closedLocally = true
     channel.isEof = true
 
@@ -442,7 +443,7 @@ proc cleanupChannel(m: Yamux, channel: YamuxChannel) {.async: (raises: []).} =
   when defined(libp2p_yamux_metrics):
     libp2p_yamux_channels.set(
       m.lenBySrc(channel.isSrc).int64, [$channel.isSrc, $channel.peerId])
-  if channel.isReset and channel.recvWindow > 0:
+  if channel.recvWindow > 0:
     m.flushed[channel.id] = channel.recvWindow
 
 proc createStream(