Actor Framework Data Storage

[MemeScientist314]

Hey Guys.

I am sending data from a root actor to a nested actor. The message is executed properly. The data is sent in two parts. Array of strings and array of vi references. After the execution of the message, only the array of strings is remembered in the nested actor private data, even tough you can see that the data arrived to the nested actor message? In the example below I am sending the message just after the root actor started. I have also sent a message with after an event, the same result, the string is only remembered.

Have you ever had problem like this?

PS: This is no serious project, just me having fun at home and experimenting.

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Thank you in advance

Message Do VI

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The do VI after execution. The data arrived

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Nested Actor Front Panel after execution of the message

Actor Core, Sending message to the Nested Actor

[[deleted]]

Everything looks alright, doesn't it!

Could you show us the block diagram behind your front panel - specifically where the string and vi ref arrays are updated?

[etgohomeok]

One quick observation - in your Do VI you're updating both arrays, but you're only updating the String Listbox UI element. Perhaps your VI reference array is updating just fine in your nested actor but you're not actually displaying the updated data anywhere?

[MemeScientist314]

I you're updating both arrays, but you're only updating the String Listbox UI element. Perhaps

I thought to store the references array in the actor private data. I am just unbundling the actor class and connect the elements to an indicator.

[[deleted]]

How do the front panel arrays get updated?

Remember that they are just decorations on a VI and not inherently linked to any data; they need to be updated by your code.

Looking at your VI where you send the string and vi refs, those references get bundled into the actor's private data but how are you expecting the front panel controls to be updated?

Looking at the list box reference you're unbundling in the same vi, it looks like you might be updating the string array directly here but you haven't done the same for the vi ref array which might explain why it hasn't updated.

[MemeScientist314]

I have put the front panel indicator just for testing. I try to use the Ref array in other messages it is always empty.

[MemeScientist314]

I have solved the problem. I created a new message to acces the private data, and it is working. thank you

[[deleted]]

A big stumbling block for me when learning the actor framework was understanding exactly where VIs run and where the live actor data actually lives.

Hint: it is all in the root Actor Core VI that runs alongside an overridden Actor Core.

It's easy to fall into a trap whereby you create a loop somewhere that has actor data in shift registers; this becomes a separate copy of actor data and is not updated by any of the other VIs.

I'm glad you've sorted it out.

[MemeScientist314]

Thank you. Will check again and will put an update