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Removes an item from the top of the FIFO queue.
Source position: dynqueue.pas line 67
public function TDynamicDataQueue.Pop( |
var Buffer; |
Count: Integer |
):Integer; |
AStream: TStream; |
Count: Integer |
):Integer; |
Buffer |
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Untyped buffer where the queue item is stored after removal. |
Count |
|
Number of bytes for the item data. |
Number of bytes needed for item data removed from the queue.
AStream |
|
TStream instance where the item data removed from the queue is stored. |
Count |
|
Number of bytes for the item data. |
Pop is an overloaded Integer function used to remove an item from the top of the FIFO queue. Overloaded variants are provided to get item data and store them as a sequence of arbitrary byte values, either in an untyped buffer or in a TStream instance.
| Remark: | Pop assumes that AStream is already positioned where the item data will be written. It does not reposition the stream instance. Be aware that writing to a stream can raise an exception. |
Pop calls the PopTopInternal method to perform the actions needed to get the data for the queue item, and to removed the entry from the top of FIFO queue.
The return value contains the number of bytes needed for the item data, and removed from the internal storage for the queue.
Use Push to enqueue a new item to the bottom of the FIFO queue. Use Top to get the item data at the top of the queue without removing it from the queue.
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Adds the specified content to the FIFO queue. |
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Gets the data for the first queue entry, but does not remove it from the queue. |
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Total memory required for item data stored in the queue. |
| Version 4.0 | Generated 2025-05-03 | Home |