dmkdmk@ecsvax.UUCP (David M. Kurtiak) (12/15/87)
I'm looking for some additional information about pausing a process on a
PC, as many larger systems have this ability. For those of you that are
familiar with VAX/VMS - equivalent to the $WAIT command.... Let me explain:
I'm using a PC compatible running DOS 3.1 on a dual-floppy system with a
multi-tasking package (DoubleDOS). What I'd like to do is have a batch
file running on one side that "wakes up" every five minutes or thereabouts,
and does some small tasks. The DOS Pause command is not an option, as a
key needs to be hit to continue processing. I thought that a small program
that ran in a tight loop would do the trick, well, it does, but eats CPU
and slows down the other side. I suppose that a "timed pause" would be
what I'm looking for. One that requires no intervention, and is timed by
the clock (actual time) instead of by number of cycles (looping). Perhaps
someone has already developed such a tool, and there is reason to re-invent
the wheel... Or, maybe there is a simple way of achieving this through DOS
but is not documented (at least in my manual).
Please e-mail replies, I'll post a follow-up if enough interest. *Any* ideas
are welcome! Thanks,
---
David M. Kurtiak
UNC - Greensboro
UUCP: dmkdmk@ecsvax.UUCP [{mcnc}!ecsgate!ecsvax!dmkdmk]
BITNET: DMKDMK@ECSVAX.BITNET (mail ONLY)danh@atexrd.UUCP (Dan Hochman) (12/24/87)
In article <4313@ecsvax.UUCP> you write: > >I'm looking for some additional information about pausing a process on a >PC, as many larger systems have this ability. For those of you that are >familiar with VAX/VMS - equivalent to the $WAIT command.... Let me explain: > >I'm using a PC compatible running DOS 3.1 on a dual-floppy system with a >multi-tasking package (DoubleDOS). What I'd like to do is have a batch >file running on one side that "wakes up" every five minutes or thereabouts, >and does some small tasks. The DOS Pause command is not an option, as a The functions you are talking about are available through hooks in the O/S which handle scheduling. PC/MS-DOS are single tasking operating systems and therefore do not have a scheduler which controls time usage. I am not really that familliar with Double DOS, but I would doubt that it has the sophistication of a real multi-tasking operating system. What they are probably doing is splitting clock ticks between the two applications that are running.
danh@atexrd.UUCP (Dan Hochman) (12/24/87)
In article <4313@ecsvax.UUCP> you write: > >I'm looking for some additional information about pausing a process on a >PC, as many larger systems have this ability. For those of you that are >familiar with VAX/VMS - equivalent to the $WAIT command.... Let me explain: > >I'm using a PC compatible running DOS 3.1 on a dual-floppy system with a >multi-tasking package (DoubleDOS). What I'd like to do is have a batch >file running on one side that "wakes up" every five minutes or thereabouts, >and does some small tasks. The DOS Pause command is not an option, as a The functions you are talking about are available through hooks in the O/S which handle scheduling. PC/MS-DOS are single tasking operating systems and therefore do not have a scheduler which controls time usage. I am not really that familliar with Double DOS, but I would doubt that it has the sophistication of a real multi-tasking operating system. What they are probably doing is splitting clock ticks between the two applications that are running.