Array of queues

[PatrickMiller]

I've been able to control 6 seperate NI modules by having all 6 have their own queue and I put that into an array.

• I can obtain 6 queues in a For loop and output into an array
• I can access each queue using index array and which position I need 
• I can create a VI which iterates through each queue in a for loop and if I only want to control say position 1 and 3 then ignore 2,4,5,6 i use the timed out? boolean

The issue i'm seeing is if I use index array to stop position 1 and say flush queue, it looks like it flushes the entire array of queues. Am i overlooking something?

[RavensFan]

You could be overlooking something.  But we don't know because we can't look over your VI.  When you don't attach code, we can't see what you overlooked.  It is impossible to debug paragraphs.

[PatrickMiller]

attached is a snippet from my stop position code. It requests which position to stop and uses that enum control to set the index position for array. It flushes the test array queue for that individual position if its in the middle of a test.

[crossrulz]

And where is the code where you initialize the queues?  It is possible you are reusing the same reference and/or named queue.

[Ben]

---

@PatrickMiller wrote:

attached is a snippet from my stop position code. It requests which position to stop and uses that enum control to set the index position for array. It flushes the test array queue for that individual position if its in the middle of a test.

---

I have used arrays of queues previously and had not trouble with them.

That image does not help since the problem is most likely elsewhere.

I suspect you are not keeping the queue refs in a shift register and when you stop to For loop you are loosing your refs.

Ben

[RavensFan]

---

@PatrickMiller wrote:

attached is a snippet from my stop position code. It requests which position to stop and uses that enum control to set the index position for array. It flushes the test array queue for that individual position if its in the middle of a test.

---

That's not code.  That is a picture of code.  It doesn't show everything we need to see.

[Ben]

---

@RavensFan wrote:

---

@PatrickMiller wrote:

attached is a snippet from my stop position code. It requests which position to stop and uses that enum control to set the index position for array. It flushes the test array queue for that individual position if its in the middle of a test.

---

That's not code.  That is a picture of code.  It doesn't show everything we need to see.

---

True.

From what little we see there is a possibility that is a FGV being used there which is as prone to a race condition as any global variable.

Ben

[Bob_Schor]

Assuming your project is developed using the LabVIEW Project file (.lvproj), compress the folder holding the Project (and most of the VIs, TypeDefs, etc. that you use) and attach the resulting ZIP file.  We need to see as many pieces of this puzzle as we can to find the bug ...

Bob Schor

[Yamaeda]

If you create named queues and have the same name, you'll in fact have 6 copies of the same queue, and then a Flush will empty it/them.

/Y

[Ben]

---

@Yamaeda wrote:

If you create named queues and have the same name, you'll in fact have 6 copies of the same queue, and then a Flush will empty it/them.

/Y

---

Nice post!

I now understand what Tim was hinting at in post #4.

Spoiler

Yes, some days I can be dense.

Ben