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Deprecated: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in /home/sportsfever/public_html/filemanger/function.php on line 93
• /home/sportsfe.../httpdocs/wp-conte.../plugins/wp-smush.../core/modules/backgrou...
• File: class-mutex.php
<?php
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namespace Smush\Core\Modules\Background;
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class Mutex {
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/**
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* @var string
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*/
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private $key;
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/**
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* TRUE: Don't perform the operation if lock couldn't be acquired
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* FALSE: Even if lock is not acquired, still perform the operation
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*
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* @var bool
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*/
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private $break_on_timeout = false;
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/**
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* @var int
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*/
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private $timeout = 10;
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public function __construct( $key ) {
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$this->key = $key;
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}
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public function execute( $operation ) {
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$acquired = $this->acquire_lock();
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if ( $acquired || ! $this->break_on_timeout() ) {
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call_user_func( $operation );
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}
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$this->release_lock();
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}
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private function acquire_lock() {
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global $wpdb;
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$lock = $wpdb->get_row(
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$wpdb->prepare(
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'SELECT GET_LOCK(%s,%d) as lock_set',
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array(
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$this->get_key(),
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$this->get_timeout(),
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)
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)
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);
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return 1 === intval( $lock->lock_set );
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}
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private function release_lock() {
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global $wpdb;
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$wpdb->get_row(
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$wpdb->prepare(
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'SELECT RELEASE_LOCK(%s) as lock_released',
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array( $this->get_key() )
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)
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);
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}
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/**
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* @return bool
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*/
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public function break_on_timeout() {
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return $this->break_on_timeout;
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}
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/**
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* @param bool $break_on_timeout
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*/
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public function set_break_on_timeout( $break_on_timeout ) {
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$this->break_on_timeout = $break_on_timeout;
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return $this;
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}
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/**
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* @return int
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*/
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public function get_timeout() {
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return $this->timeout;
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}
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/**
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* @param int $timeout
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*/
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public function set_timeout( $timeout ) {
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$this->timeout = $timeout;
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return $this;
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}
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/**
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* @return string
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*/
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public function get_key() {
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return $this->key;
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}
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/**
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* @param string $key
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*/
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public function set_key( $key ) {
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$this->key = $key;
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return $this;
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}
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}
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