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Icinga\Protocol\File\FileReader::count(): call iterator_count() only once per instance and cache the returned value

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This commit is contained in:
Alexander A. Klimov 2015-04-24 11:10:40 +02:00
parent 5ba539b7c1
commit 3d53e6f9b5
1 changed files with 11 additions and 1 deletions
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12
library/Icinga/Protocol/File/FileReader.php
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@ -26,6 +26,13 @@ class FileReader implements Selectable, Countable
*/ */
protected $filename; protected $filename;
/**
* Cache for static::count()
*
* @var int
*/
protected $count = null;
/** /**
* Create a new reader * Create a new reader
* *
@ -71,7 +78,10 @@ class FileReader implements Selectable, Countable
*/ */
public function count() public function count()
{ {
return iterator_count($this->iterate()); if ($this->count === null) {
$this->count = iterator_count($this->iterate());
}
return $this->count;
} }
/** /**