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Multithreading

General and Gameplay Programming Programming

Started by ziplux January 15, 2001 05:59 PM

2 comments, last by ziplux 23 years, 3 months ago

ziplux

122

Author

January 15, 2001 05:59 PM

I''m making a multithreaded program. I made a funciton that I want to run, like this:

  
DWORD WINAPI func(LPVOID arg)
{
while(bQuit != true)
{
// do stuff

}
}

WHen I use CreateThread the create a thread that runs that function, my CPU usage goes thru the roof to 100 percent. Is there another way to do this without sitting in a busy while loop? Thanks in advance. My Geekcode: "GCS d s: a14 C++$ P+(++) L+ E-- W+++$ K- w++(+++) O---- M-- Y-- PGP- t X R- tv+ b++ DI+(+++) D- G e* h!" Decode my geekcode! Geekcode.com
Visit our web site: Asylum Entertainment

My Geekcode: "GCS d s: a14 C++$ P+(++) L+ E-- W+++$ K- w++(+++) O---- M-- Y-- PGP- t XR- tv+ b++ DI+(+++) D- G e* h!"Decode my geekcode!Geekcode.com
Visit our web site:Asylum Entertainment

Anonymous

January 15, 2001 06:07 PM

use sleep in the loop.

as long as your loop is running without ever relinquishing control of the thread, your cpu usage will always be 100%.

this isn''t always bad. you can give your thread a low priority and still use 100% of the cpu time. This way any time another process or thread needs the cpu, that thread will give the other process control.

ziplux

122

Author

January 15, 2001 09:23 PM

worked like a charm, thanks AP.

My Geekcode: "GCS d s: a14 C++$ P+(++) L+ E-- W+++$ K- w++(+++) O---- M-- Y-- PGP- t X
R- tv+ b++ DI+(+++) D- G e* h!"
Decode my geekcode!
Geekcode.com

Visit our web site:
Asylum Entertainment

My Geekcode: "GCS d s: a14 C++$ P+(++) L+ E-- W+++$ K- w++(+++) O---- M-- Y-- PGP- t XR- tv+ b++ DI+(+++) D- G e* h!"Decode my geekcode!Geekcode.com
Visit our web site:Asylum Entertainment

Shannon Barber

1,684

January 15, 2001 09:28 PM

You could also WaitOnSingleEvent or multiple events... it depends on what kinds of work is being done in the loop.

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Multithreading

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