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Bugtraq archives for 2nd quarter (Apr-Jun) 1998: Re: pingflood.c

Re: pingflood.c

Phil Stracchino (alaricBABCOM.COM)
Mon, 18 May 1998 20:01:43 -0700

> void mysleep(int seconds)
> {
>         struct timeval  tv;
>         tv.tv_sec=seconds;
>         tv.tv_usec=0;
>         select(0,NULL,NULL,NULL,&tv);
> }
> The code above should be portable to every platform that supports the standard
> select(2) semantics.  It allows for subsecond precision too.  This implementation
> isn't subject to signal dainbrammage either.

However, depending on your platform's implementation of select(), it may
consume idle CPU cycles, causing an artificially high load figure and
possibly stealing cycles from other lower-priority jobs.

 ----  phil stracchino  ----  the renaissance man  ----  lone geek biker  ----
   "I have a cat named Easter, he says, Will you ever learn -
    It's just an empty cage girl, if you kill the bird...."  -- Tori Amos
 ----  "Oh, bother!" said Pooh, as Sheridan decompressed the airlock....  ----