Making "read from file" less blocky.

[Tom Glod]

Jerry, that simple tweak worked to improve the performance of the UI a
great deal...... its a slower method of loading...........but not too slow
to use as background loading. ...Its actually better than what I
expected.   Awesome.
I always love to use the forever loop..... its just so fun to write. lol
I gotta get some error handling in there but thats another story.
Consider this one SOLVED. Thanks again.



On Sat, Aug 3, 2019 at 10:47 PM Tom Glod <tom at makeshyft.com> wrote:

> Dar, Yes...I understand.....it is a blocking operation no matter what I
> can just introduce breaks in the blockiness.  So I'm not expecting a socket
> like experience for sure.
>
> Those are very good suggestions to try.... thank you.
>
> Jerry, I will give that a try, it looks promising.....even a little
> improvement would be better and sufficient for this need, and I can use it
> sparingly.  Thanks alot!  Onward indeed.
>
> On Sat, Aug 3, 2019 at 10:36 PM Jerry Jensen via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>
>> Hi Tom,
>>
>> I’ve done this in the past watching it instead of the result. I seem to
>> remember eof was not useful. Maybe for a serial port it would be?
>>
>> As in:
>>
>> repeat forever
>>   read from file ThisFile for (1024 * 1000) bytes
>>   if it is empty then exit repeat
>> — do your stuff
>>   wait 0 with messages
>> end repeat
>>
>> Onward,
>> .Jerry non-sphere (tetrahedron?)
>>
>> It was a long time ago in, I think, LC 5, so YMMV.
>>
>>
>> > On Aug 3, 2019, at 5:56 PM, Tom Glod via use-livecode <
>> use-livecode at lists.runrev.com> wrote:
>> >
>> > Hey folks,
>> >
>> > I'm having trouble finding a combination of settings that allows my file
>> > loading  to seem to happen in the background.
>> >
>> >  repeat while read_result is not "eof"
>> >         read from file ThisFile for (1024 * 1000) bytes
>> >         put the result into read_result
>> >         put it after IntoThisVariable
>> >         add length(it) to amount_read
>> >         TSTProgress amount_read,ExpectedSize,"%","Loading File ..."
>> > (Progress Indicator Handler)
>> >         wait 10 milliseconds with messages
>> >      end repeat
>> >
>> > no matter what I try, its still sluggish, and it seems like messages are
>> > still accumilating instead of being processed by the engine.
>> >
>> > Am I missing something?  Normally waiting with messages sufficiently
>> frees
>> > the engine to allow the UI to remain responsive.
>> >
>> > Thanks,
>> >
>> > Tom
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