What are the secrets to doing synchronous IO with FreeBSD? I
have this application that I'm writing where I need to play
a WAV file but I need to make sure all the bits are sent on
there way before I move on. The WAV file is being played
through a controller that I have to toggle some bits via a
serial port to get the WAV file through. Without doing a
sleep(3) and praying that IO is complete is there another way?
I'm pretty sure what I need is the equivalent of O_SYNC in
SVR4, but I think I'm drain-bamaged (sic) because I haven't
found the equivalent in BSD.
Thanks in advance.
-steve
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