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Re: [CPROG] Flushing af stdin



On Fri, 2 Jun 2000, Frank Damgaard wrote:

> Ja, hvis man skal have tiden på dagen. 

Det skulle man - pointen er netop at du i et spil vil have det tætteste du
kan få på den tid der rent faktisk er gået. 

> Men ok, er det busy-waiting-løkker vi skal have, så er det vel ok :)
> 
> At bruge select() kræver at man tænker lidt anderledes , men den
> er vel mere generel. Fra manual siden select(2) :
> 
>        timeout  is  an  upper bound on the amount of time elapsed
>        before select returns. It may be zero, causing  select  to
>        return  immediately.  If  timeout  is  NULL  (no timeout),
>        select can block indefinitely.
> 
> 
> dvs:
> 
>    time = 0  returner omgående
>    time > 0  returner senest efter "time"
>    time= NULL vent til der er input i file descriptor listen.

Alle disse er underlagt almindelige regler om process skift. Da Linux ikke
er et realtidssystem har du ingen garantier på den tid du snakker om. Med
gettimeofday kan du selv se hvor lang tid der er gået, og så få din
simulations-/spiltid til at forløbe så naturligt som muligt.

Mads

-- 
Mads Bondo Dydensborg.                               sslug@sslug
You know you're a Linux geek when...

    You feel the desire to master vi.

                                                - segfault



 
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