Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 3511)
+++ wp-includes/functions.php	(working copy)
@@ -2317,4 +2317,71 @@
 	return $wpdb->num_queries;
 }
 
+function wp_schedule_event($timestamp, $recurrence, $hook) {
+	$args = array_slice(func_get_args(), 3);
+	$crons = get_option('cron');
+	$crons[$timestamp][$hook] = array('recur' => $recurrence, 'args' => $args);
+	ksort($crons);
+	update_option('cron', $crons);
+}
+
+function wp_unschedule_event($timestamp, $hook) {
+	$crons = get_option('cron');
+	unset($crons[$timestamp][$hook]);
+	if ( empty($crons[$timestamp]) )
+		unset($crons[$timestamp]);
+	update_option('cron', $crons);
+}
+
+function wp_clear_scheduled_hook($hook) {
+	while($timestamp = next_scheduled('scheduled_hook'))
+		wp_unschedule_event($timestamp, 'scheduled_hook');
+}
+
+function next_scheduled($hook) {
+	$crons = get_option('cron');
+	if ( empty($crons) )
+		return false;
+	foreach($crons as $timestamp => $cron) {
+		//if($timestamp <= time()) continue;
+		if(isset($cron[$hook])) return $timestamp;
+	}
+	return false;
+}
+
+function spawn_cron() {
+	if (array_shift(array_keys(get_option('cron'))) > time()) return;
+
+	$cron_url = get_settings('siteurl') . '/wp-cron.php';
+	$parts = parse_url($cron_url);
+	$argyle = @ fsockopen($parts['host'], $_SERVER['SERVER_PORT'], $errno, $errstr, 0.01);
+	if ( $argyle )
+		fputs($argyle, "GET {$parts['path']}?time=" . time() . '&check='
+		. md5(DB_PASS . '187425') . " HTTP/1.0\r\nHost: {$_SERVER['HTTP_HOST']}\r\n\r\n");
+}
+
+function wp_cron() {
+	if (array_shift(array_keys(get_option('cron'))) > time())
+		return;
+
+	$crons = get_option('cron');
+	$newcrons = $crons;
+	foreach ($crons as $timestamp => $cronhooks) {
+		if ($timestamp > time()) break;
+		foreach($cronhooks as $hook => $args) {
+			do_action($hook, $args['args']);
+			$recurrence = $args['recur'];
+			if ( 'hourly' == $recurrence ) {
+				$args = array_merge( array($timestamp + 3600, $recurrence, $hook), $args['args']);
+				call_user_func_array('wp_schedule_event', $args);
+			} else if ( 'daily' == $recurrence ) {
+				$args = array_merge( array($timestamp + 86400, $recurrence, $hook), $args['args']);
+				call_user_func_array('wp_schedule_event', $args);
+			}
+
+			wp_unschedule_event($timestamp, $hook);
+		}
+	}
+}
+
 ?>