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From: stefan@lbl-csam.arpa (Stefan gottschalk)
Newsgroups: comp.sys.next
Subject: Speakers, Listeners, keeping around C-strings, send rights
Message-ID: <4214@helios.ee.lbl.gov>
Date: 13 Nov 89 22:56:07 GMT
Sender: usenet@helios.ee.lbl.gov
Reply-To: stefan@csam.lbl.gov (Stefan gottschalk)
Distribution: usa
Organization: Lawrence Berkeley Laboratory, Berkeley
Lines: 22


 The documentation on Listeners says that the 'privatePort:' method 
   doesn't register a port publically, and that "other tasks can only
   send messages to this Listener if they are explicitly sent send rights
   to a _listenPort_ in a message."  How do I do that?  I haven't seen
   any mention of how to provide send rights anywhere else in the Listener 
   or Speaker documentation, though I've seen send rights mentioned in many
   places.

 As an experiment, I tried msgwrap-ping a '.msg' file 
   containing the line
   
   "- giveSendRights: (Port_t_send) sendRights;"  

 This seemed to be what the man-page on msgwrap was suggesting.  But msgwrap 
   responded with 

   (1) Expecting a type identifier, found "Port_t_send"

 So how are those types used?

-stefan