Re: How to do deferred terminate in kext? - Found Problem

• Subject: Re: How to do deferred terminate in kext? - Found Problem
• From: Scott Taggart <email@hidden>
• Date: Fri, 02 Aug 2002 11:52:38 -0700

So, I took the example of deferred close from the various ioket drivers:

didterminate()
{
if( something_still_running)
set_flag;
else
interface->close();
return( super::didterminate();
}
other_func()
{
if( all_done && flag_set )
{
interface_close();
}
}

Well, that's just fine as far as it goes. But my real problem is that I
want to defer not just closing my provider, but I want to defer my own
stop() and free() getting called until after my stuff is done. The above
sample does not do this. So, how do I do this? Do I return false from
didTerminate and/or not call super:didterminate()? Do I set the "defer"
parameter? What do I do after the deferment? Do I call
super:didterminate()? Do I call my own stop()? I need a specific sequence
to not only safely defer but to get things cleanly closed. I see no
relevant documentation or sample of any of this.

Thanks.



At 09:56 AM 8/2/2002, Scott Taggart wrote:
>Hi,
>
>I have a kext that I want to implement deferred termination in. I want to
>defer termination until an i/o request completes on my device. Reading
>the docs on terminate (requestTerminate, terminate, willTerminate,
>didTerminate) is a bit mind-numbing and to say the least terse. Can
>someone point me to either sample code or pseudo-code of the functions
>from the above list and how to do this? I assume I return false from one
>of these and then later have to call something else to get the termination
>kicked off again.
>
>Thanks,
>
>Scott
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