Semaphores in C

Tuork · 03-01-07, 02:43 PM

Hello again all. Today's topic is the use of semaphores to protect the screen in C-Unix.

Basically, I have a a program that uses threads to display and add paths of "shared files". There's a string array that holds them.

Basically, printList, addToList and openFile are the three functions I have, and each must work through threads.

I have the threads figured out, but I'm stumped as how to protect the screen so that stuff is printed in the apropriate order.

Any idea?
This project is due tomorrow midnight. Any suggestions are welcome with open arms.

Tuork · 03-02-07, 12:07 AM

EDIT!

Neeeeeeeeeever mind... got it to work.

No I need to work on figuring out how tocompare efficiency of thread vs. process creation.

Looking up ways to check the system time (in milliseconds, mind you).
Anyone have any bright ideas?

03-01-07, 02:43 PM	#1
Tuork Official pain in the ass Join Date: May 2003 Location: 127.0.0.1 Posts: 1,197	Semaphores in C Hello again all. Today's topic is the use of semaphores to protect the screen in C-Unix. Basically, I have a a program that uses threads to display and add paths of "shared files". There's a string array that holds them. Basically, printList, addToList and openFile are the three functions I have, and each must work through threads. I have the threads figured out, but I'm stumped as how to protect the screen so that stuff is printed in the apropriate order. Any idea? This project is due tomorrow midnight. Any suggestions are welcome with open arms. __________________ My avatar: "An obscure and non sensical pattern made to get people to post what they think it is" - Vamp Dimitri: Dell XPS M1530 Core2Duo T5550 1.86Ghz \| 3GB DDR2 \| 8600M GT 256MB \| 250GB Hdd \| BenQ FP202W 20" LCD \| MX1000 mouse \| Inspire T5400 5.1

03-02-07, 12:07 AM	#2
Tuork Official pain in the ass Join Date: May 2003 Location: 127.0.0.1 Posts: 1,197	Re: Semaphores in C EDIT! Neeeeeeeeeever mind... got it to work. No I need to work on figuring out how tocompare efficiency of thread vs. process creation. Looking up ways to check the system time (in milliseconds, mind you). Anyone have any bright ideas? __________________ My avatar: "An obscure and non sensical pattern made to get people to post what they think it is" - Vamp Dimitri: Dell XPS M1530 Core2Duo T5550 1.86Ghz \| 3GB DDR2 \| 8600M GT 256MB \| 250GB Hdd \| BenQ FP202W 20" LCD \| MX1000 mouse \| Inspire T5400 5.1