|
06-05-2007, 13:35
|
#1 |
|
Chump!!!
Join Date: Jul 2006
Location: North West
Posts: 993
|
Quick help
In XP how does the OS prevent mutual access to critical resources? It's a question on my mock paper and I can't seem to find a definate answer.
(a)One of the main issues in multi-tasking operating systems relates to the prevention of mutual access to a critical resource. How, in practice, can this be achieved |
|
|
|
06-05-2007, 18:26
|
#2 |
|
Bananaman
Join Date: Jul 2006
Location: Liverpool/Edinburgh
Posts: 4,817
|
I've got no idea, but if i had to answer it, i'd go down the line of something to do with Interrupt requests etc...
__________________
 
|
|
|
|
|
06-05-2007, 18:37
|
#3 |
|
Screaming Orgasm
Join Date: Jul 2006
Location: Newbury
Posts: 15,194
|
Ah, inter-process/inter-thread synchronisation. Fun (and generally evil) stuff.
Do some google research on 'mutex' and 'semaphore' (the latter in computer use, not old-style signalling use). That should get you a good start. 
|
|
|
|
|
06-05-2007, 23:06
|
#4 |
|
Chump!!!
Join Date: Jul 2006
Location: North West
Posts: 993
|
I made some notes about Locks. Phone something on Semaphores as well.
|
|
|
|
|
07-05-2007, 13:41
|
#5 |
|
The Stig
Join Date: Jun 2006
Location: Swad!
Posts: 10,713
|
How do they define 'critical resources'?
__________________
apt-get moo |
|
|
|
Linear Mode
