split FutureStream from asyncfutures

lib/pure/asyncdispatch.nim

@@ -9,11 +9,12 @@
 
 include "system/inclrtl"
 
-import os, tables, strutils, times, heapqueue, options, asyncfutures
+import os, tables, strutils, times, heapqueue, options, asyncstreams
+import asyncfutures except callSoon
 import nativesockets, net, deques
 
 export Port, SocketFlag
-export asyncfutures
+export asyncfutures, asyncstreams
 
 #{.injectStmt: newGcInvariant().}
 
@@ -188,7 +189,7 @@ proc adjustedTimeout(p: PDispatcherBase, timeout: int): int {.inline.} =
       result = int((timerTimeout - curTime) * 1000)
       if result < 0: result = 0
 
-proc callSoon*(cbproc: proc ()) {.gcsafe.}
+proc callSoon(cbproc: proc ()) {.gcsafe.}
 
 proc initGlobalDispatcher =
   if asyncfutures.callSoonProc == nil:
@@ -1336,7 +1337,7 @@ proc recvLine*(socket: AsyncFD): Future[string] {.async, deprecated.} =
       return
     add(result, c)
 
-proc callSoon*(cbproc: proc ()) =
+proc callSoon(cbproc: proc ()) =
   ## Schedule `cbproc` to be called as soon as possible.
   ## The callback is called when control returns to the event loop.
   getGlobalDispatcher().callbacks.addLast(cbproc)