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<?php
/**
* Bitrix Framework
* @package bitrix
* @subpackage main
* @copyright 2001-2021 Bitrix
*/
namespace Bitrix\Main\Diag;
class FileLogger extends Logger
{
protected $fileName;
protected $maxSize = 1048576;
/**
* @param string $fileName Absulute path.
* @param int|null $maxSize Maximum size of the log file.
*/
public function __construct(string $fileName, int $maxSize = null)
{
$this->fileName = $fileName;
if ($maxSize !== null)
{
$this->maxSize = $maxSize;
}
}
protected function logMessage(string $level, string $message)
{
$current = ignore_user_abort(true);
if ($fp = fopen($this->fileName, 'ab'))
{
if (flock($fp, LOCK_EX))
{
// need it for filesize()
clearstatcache();
$logSize = filesize($this->fileName);
if ($this->maxSize > 0 && $logSize > $this->maxSize)
{
$this->rotateLog();
ftruncate($fp, 0);
}
fwrite($fp, $message);
fflush($fp);
flock($fp, LOCK_UN);
}
fclose($fp);
}
ignore_user_abort($current);
}
protected function rotateLog()
{
$historyName = $this->fileName . '.old';
copy($this->fileName, $historyName);
}
}