| Re: [AD] Can somebody elaborate on lock_bitmap? |
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> I read the description of that function and I think it is meant to be used
> in dos interruption context, but it's a guess. Could somebody elaborate
> it's description with at least a possible example? 'very weird things' is
> slightly helpless :)
Pretty good description, isn't it ? I wrote it :-)
lock_bitmap() is the strict equivalent of LOCK_VARIABLE() for memory
bitmaps: the 'very weird thing' is drawing onto a memory bitmap inside an
interrupt handler.
I chose to be that elusive so as not to give bad ideas to programmers ;-)
--
Eric Botcazou
ebotcazou@xxxxxxxxxx