Theodore H. Smith wrote:
Also, anyone know anything about double-buffering file streams?
So, basically, how I'd like it to work, is that ask for a read into
the buffer, and return instantly before the read is complete! The user
will process a previously made buffer. By the time he's finished
processing it, the last read will be complete. If not, we'll actually
just block until the read is complete.
Does fread offer such functionality? OR any standard Unix calls?
fread not, but read yes.
You control the read behavior with fcntl.
Basically, you can make the read asynchronous (O_NONBLOCK), you can be
notified when data is available (O_ASYNC), and you can disable data
caching (F_NOCACHE).
This should work on Unix and Mac OS. I don't know how this works for
windows.
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