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();