Ds\Queue::allocate
(PECL ds >= 1.0.0)
Ds\Queue::allocate — Allocates enough memory for a required capacity
Description
public Ds\Queue::allocate ( int $capacity ) : void
Ensures that enough memory is allocated for a required capacity. This removes the need to reallocate the internal as values are added.
Note:
Capacity will always be rounded up to the nearest power of 2.
Parameters
-
capacity -
The number of values for which capacity should be allocated.
Note:
Capacity will stay the same if this value is less than or equal to the current capacity.
Note:
Capacity will always be rounded up to the nearest power of 2.
Return Values
No value is returned.
Examples
Example #1 Ds\Queue::allocate() example
<?php $queue = new \Ds\Queue(); var_dump($queue->capacity()); $queue->allocate(100); var_dump($queue->capacity()); ?>
The above example will output something similar to:
int(8) int(128)
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https://www.php.net/manual/en/ds-queue.allocate.php