Re: Euphoria 2.6 Attn: Robert
C Bouzy wrote:
> I have been playing around with the multitasking version of EU, and I have
> also been experimenting with Al’s virtual thread manager, and neither seems
> to remedy the freezing of Win32 applications when calling certain kinds of
> functions. For example when I call BASS_StreamCreateURL (Bass.dll Library),
> my app will freeze until a value is returned. This happens with most
> functions that deal with connecting to the internet. I have always found
> workarounds with EU limitations, but I have never been able to find a
> solution to this problem. Is there a way to correct this with the current
> version of EU, if not, will the new version of EU fix this problem?
Euphoria's multitasking will not by itself solve the problem
of I/O calls that block, i.e. make you wait a long time
before they return. However you might look into the User Contribution
by Daniel Kluss, where, while using Euphoria multitasking,
he creates a second independent O/S thread to handle
a slow API call. I'm not sure how many different API calls
that works for, but I think it's a lot.
Also, in general, you can sometimes substitute a non-blocking
I/O call for a blocking one, e.g. for reading a big chunk of data.
In that case you could have a separate Euphoria task that polls
a variable or memory location, waiting for the I/O operation
to complete. While it's doing that, other Euphoria tasks could be
free to do other useful things.
Regards,
Rob Craig
Rapid Deployment Software
http://www.RapidEuphoria.com
|
Not Categorized, Please Help
|
|
