I'm working on a Windows VoIP application.  The high priority thread
must continue sending  audio data to the network every 20ms.  However,
I wish to save the audio to disk too.

WriteFile to local disk doesn't seem to return quick enough if the
disk subsystem is busy.  How can I get the data to disk without
blocking the high priority thread?

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Request for Question Clarification by lazerfx-ga on 12 May 2005 05:25 PDT

What language are you using to create the application, as the
methodology is different depending on the language.

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Clarification of Question by jamieyukes-ga on 12 May 2005 06:45 PDT

C++ ... Visual C++ 6.0

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Request for Question Clarification by lazerfx-ga on 12 May 2005 07:08 PDT

Have you tried using StreamIO?

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Clarification of Question by jamieyukes-ga on 13 May 2005 13:19 PDT

I have never heard of StreamIO.
And I'm not getting super definitive results from Google.

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Clarification of Question by jamieyukes-ga on 23 May 2005 20:41 PDT

Only Windows 2000

This program must work in windows 95/98/me or just Windows 2k and XP?

Create another thread responsible for writing to disk. While sending
audio data on the network the high priority thread puts it in a queue
that is read by the disk writer thread and written to disk. That way
your high priority thread does not block on disk IO and your disk
writer thread writes the data when time is available to it.

coloradite,

Many queues require synchronization.
Is there a good queue implementation that will never cause the Writer
to block or be interrupted?