free the memory of the queue after ingesting large paintings on the RT/cRIO

I'm working on an application, running on a cRIO, which receives files from the network (up to about 7 MB per file) and transfers data to the FPGA that writes to synchronized with an external signal. The files are never written to disk of cRIO, they are streamed directly from memory on a DMA channel. I can receive files faster I have save output digital, so I put the incoming files in a queue. Each file is simply a large array of bytes, and the queue contains arrays of bytes. Whenever I finished it passing an array to output digital, I remove the following.

My problem is that, in certain situations, I get files enough to fill the cRIO memory, and that memory don't is released because the elements are removed. It is a normal behavior, according to other threads on this forum. However, I can't find a way to force to free this memory and in some cases, prevents me from download files more - I get error 2 ("memory") when I unflatten the TCP entering a table stream. I tried to add code that empty the enqueues empty tables, queue and then removes the empty bays, but apparently not to free the memory. Anyone have any ideas?

It comes to LabVIEW 2012SP1, running on a cRIO-9076 with VxWorks like operating system.

The only way I know to free up the memory of the queue is to destroy the queue.  But according to the architecture you, would not be possible.

Tags: NI Software

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