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Lossy Enqueue Element (G Dataflow)

Version:
    Last Modified: March 15, 2017

    Adds an element to the back of a queue. Unlike Enqueue Element, this node does not wait for space in the queue to become available. If no space is available in the queue, this node discards an element from the front of the queue to make space.

    Programming Patterns

    Use Obtain Queue to set the maximum size of the queue.

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    queue

    A reference to a queue.

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    element

    The element you want to add to the back of the queue.

    The data type of this input changes to match the data type of the elements in the queue.

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    error in

    Error conditions that occur before this node runs.

    The node responds to this input according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Default: No error

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    queue out

    Reference to the queue.

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    overflow element

    The element that this node removed from the front of the queue if the queue was full.

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    overflow?

    A Boolean value that indicates whether the queue was full and this node had to make space for the element.

    True The queue was full and this node removed an element to create space.
    False The queue accepted the element and did not remove an element to make space.
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    error out

    Error information.

    The node produces this output according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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