WP_Background_Process::lock_process()
Lock process
Description
Lock the process so that multiple instances can’t run simultaneously. Override if applicable, but the duration should be greater than that defined in the time_exceeded() method.
Source
File: classes/library/batch-processing/wp-background-process.php
protected function lock_process() {
$this->start_time = time(); // Set start time of current process.
$lock_duration = ( property_exists( $this, 'queue_lock_time' ) ) ? $this->queue_lock_time : 60; // 1 minute
$lock_duration = apply_filters( $this->identifier . '_queue_lock_time', $lock_duration );
set_site_transient( $this->identifier . '_process_lock', microtime(), $lock_duration );
}
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