[PD] Trigger question

[adam johnson]

I guess I was not clear, I am not using it as a loop, I was just saying
that at the code level [trigger] is a for loop, so having it break would be
simple to add. I am using it more as a conditional, if certain conditions
are met on this output, it bangs the right inlet and stops the rest. This
is easy enough to manage other ways most of the time, but it can get ugly.
I will attempt to simplify my current use after work and send it on if this
has not resolved by then, so far my attempts to simplify it have not been
successful and the patch itself needs to be cleaned up before subjecting
anyone to it, which I am currently working on doing.

On Wed, Mar 17, 2021 at 12:18 PM IOhannes m zmoelnig <zmoelnig at iem.at>
wrote:

> On 3/17/21 9:39 AM, adam johnson wrote:
> > Sometimes when using trigger I find myself needing to break out of it
> > before it completes, simple to work up an abstraction to handle this,
> > but it got me to wondering why trigger does not have a right inlet to
> > stop the sequence. Looking at the code, trigger is a for loop as
> > expected, so it would seem to be a very simple task to add this right
> > inlet to allow breaking out of the sequence, is there a reason trigger
> > lacks this? Something so simple and obvious never having been done
> > suggests I am missing something, is this not as useful as it seems? Am
> > I missing something about dataflow?
>
> i think so.
>
> [trigger] is not a loop¹.
> it's a device to guarantee order-of-execution.
> there are other devices to stop dataflow (e.g. [spigot]), and devices to
> create stoppable loops ([until]), if that is really what you need.
>
> it's hard to say so without an actual example.
>
>
>
> fgdmst
> IOhannes
>
>
> ¹ as you figured by looking at the code, it is implemented (in C) using
> a for-loop. but that doesn't make it a loop. if you look deeper, you
> might find the for-loop translates to CMP and JMP instructions. that
> doesn't make [trigger] much of a comparator or a a jumper.
>
>
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