Adjust actor API

src/syndicate.nim

@@ -188,8 +188,3 @@ macro during*(turn: untyped; ds: Cap; pattern: Pattern; publishBody: untyped) =
     `callbackProc`
     discard inFacet(`turn`) do (`turn`: var Turn):
       discard observe(`turn`, `ds`, `pattern`, during(`callbackSym`))
-
-proc runActor*(name: string; bootProc: TurnAction) =
-  ## Boot an actor `Actor` and churn ioqueue once.
-  discard bootActor(name, bootProc)
-  actors.run()

src/syndicate/actors.nim

@@ -704,17 +704,20 @@ proc run(turn: var Turn) =
     turnQueue.addLast(move eff)
   turn.facet = nil # invalidate the turn
 
+proc runPendingTurns* =
+  while turnQueue.len > 0:
+    var turn = turnQueue.popFirst()
+    # TODO: check if actor is still valid
+    try: run(turn)
+    except CatchableError as err:
+      stderr.writeLine("actor ", turn.actor.name, " threw an error during a turn")
+      terminateActor(turn, err)
+
 proc run* =
   ## Run actors to completion
   var ready: seq[Continuation]
   while true:
-    while turnQueue.len > 0:
-      var turn = turnQueue.popFirst()
-      # TODO: check if actor is still valid
-      try: run(turn)
-      except CatchableError as err:
-        stderr.writeLine("actor ", turn.actor.name, " threw an error during a turn")
-        terminateActor(turn, err)
+    runPendingTurns()
     ioqueue.poll(ready)
     if ready.len == 0: break
     while ready.len > 0:
@@ -725,6 +728,15 @@ proc run* =
         stderr.writeLine "ioqueue continuation threw an error"
         raise err
 
+proc runActor*(name: string; bootProc: TurnAction) =
+  ## Boot an actor `Actor` and churn ioqueue.
+  let actor = bootActor(name, bootProc)
+  if not actor.exitReason.isNil:
+    raise actor.exitReason
+  actors.run()
+  if not actor.exitReason.isNil:
+    raise actor.exitReason
+
 type FacetGuard* = object
   facet: Facet