From:	MERC::"uunet!WKUVX1.BITNET!MacroMan" 23-APR-1992 14:51:43.96
To:	MACRO32%WKUVX1.BITNET@TGV.COM
CC:	
Subj:	Re: how to read keystrokes from a process that is hibernated or what?


>Issue a $QIO specifying an AST routine that calls $WAKE.  Then call $HIBER.
>When the I/O completes, the AST routine will be called, and this will then wake
>the process.  You might have trouble with a race condition if the I/O completes
>before your call to $HIBER takes effect.

The AST's $WAKE call should set the process's wake-pending bit, so the HIBER
call will complete immediately even if the $WAKE call occures first.

To explicitely clear the WAKE_PENDING bit, you can do this:

        SYS$WAKE(0,0);
        SYS$HIBER();

-bruce

----------------------------------------------------------------------------
Bruce R'. Miller, MILLER@TGV.COM        (408) 427-4366  in Santa Cruz CA
        "And through the wire, we can talk..." - PG