> However, there is still a problem to solve. The audio thread (the one
> thats copying data from the soundcard hardware) is absolutely *not*
> allowed to block for anything except the soundcard. That includes page
> faults. As a result, it must be guaranteed that the region it maps are
> in physical memory before it tries to read/write from them. This is
> where the butler thread comes in. Its primary job is to keep touching
> pages some distance ahead of the current playback and record positions
> to try to ensure that the pages are faulted in before the audio thread
> tries to use them.
Did you try to mlock() the buffer ?
Bye.
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This archive was generated by hypermail 2b29 : Fri Apr 07 2000 - 21:00:08 EST