Increase size of TCP read buffer

preserves

@@ -1 +1 @@
-Subproject commit a466930e6e4663b06f173fe692ce46b59138231f
+Subproject commit 1cf0df255f0f18d2e07fe43943f114a66ddb89e9

src/syndicate/relay.nim

@@ -358,7 +358,11 @@ proc connectUnix*(turn: var Turn; path: string; cap: SturdyRef; bootProc: During
     buffered = false)
   proc socketWriter(packet: seq[byte]): Future[void] =
     socket.send cast[string](packet)
-  const recvSize = 4096
+  const recvSize = 1 shl 18
+    # this is an excessive buffer size but the PEG parser
+    # can only read complete documents
+    # TODO: use a binary protocol and improve that
+    # parser to stream data in chunks
   var shutdownRef: Ref
   let reenable = turn.activeFacet.preventInertCheck()
   let connectionClosedRef = newRef(turn, newShutdownEntity())