get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", '_transient_doing_cron' ) ); if ( is_object( $row ) ) $value = $row->option_value; } return $value; } if ( false === $crons = _get_cron_array() ) die(); $keys = array_keys( $crons ); $gmt_time = microtime( true ); if ( isset($keys[0]) && $keys[0] > $gmt_time ) die(); $doing_cron_transient = get_transient( 'doing_cron'); // Use global $doing_wp_cron lock otherwise use the GET lock. If no lock, trying grabbing a new lock. if ( empty( $doing_wp_cron ) ) { if ( empty( $_GET[ 'doing_wp_cron' ] ) ) { // Called from external script/job. Try setting a lock. if ( $doing_cron_transient && ( $doing_cron_transient + WP_CRON_LOCK_TIMEOUT > $gmt_time ) ) return; $doing_cron_transient = $doing_wp_cron = sprintf( '%.22F', microtime( true ) ); set_transient( 'doing_cron', $doing_wp_cron ); } else { $doing_wp_cron = $_GET[ 'doing_wp_cron' ]; } } // Check lock if ( $doing_cron_transient != $doing_wp_cron ) return; foreach ( $crons as $timestamp => $cronhooks ) { if ( $timestamp > $gmt_time ) break; foreach ( $cronhooks as $hook => $keys ) { foreach ( $keys as $k => $v ) { $schedule = $v['schedule']; if ( $schedule != false ) { $new_args = array($timestamp, $schedule, $hook, $v['args']); call_user_func_array('wp_reschedule_event', $new_args); } wp_unschedule_event( $timestamp, $hook, $v['args'] ); do_action_ref_array( $hook, $v['args'] ); // If the hook ran too long and another cron process stole the lock, quit. if ( _get_cron_lock() != $doing_wp_cron ) return; } } } if ( _get_cron_lock() == $doing_wp_cron ) delete_transient( 'doing_cron' ); die();