Merge pull request #9687 from narimiran/fix-7192

export `asyncdispatch.callSoon` (fixes #7192)

lib/pure/asyncdispatch.nim

@@ -16,7 +16,8 @@ import asyncfutures except callSoon
 import nativesockets, net, deques
 
 export Port, SocketFlag
-export asyncfutures, asyncstreams
+export asyncfutures except callSoon
+export asyncstreams
 
 #{.injectStmt: newGcInvariant().}
 
@@ -199,7 +200,7 @@ proc adjustTimeout(pollTimeout: int, nextTimer: Option[int]): int {.inline.} =
   if pollTimeout == -1: return
   result = min(pollTimeout, result)
 
-proc callSoon(cbproc: proc ()) {.gcsafe.}
+proc callSoon*(cbproc: proc ()) {.gcsafe.}
 
 proc initCallSoonProc =
   if asyncfutures.getCallSoonProc().isNil:
@@ -1640,7 +1641,7 @@ 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)

tests/async/t7192.nim

@@ -0,0 +1,14 @@
+discard """
+output: '''
+testCallback()
+'''
+"""
+
+import asyncdispatch
+
+proc testCallback() =
+  echo "testCallback()"
+
+when isMainModule:
+  callSoon(testCallback)
+  poll()