WordPress at a glance
function is not described

generic_ping() WP 1.2.0

Sends pings to all of the ping site services.

No Hooks.

Return

Int. Same as Post ID from parameter

Usage

generic_ping( $post_id );
$post_id(int)
Post ID.
Default: 0

Code of generic ping: wp-includes/comment.php VER 5.0.3

<?php
function generic_ping( $post_id = 0 ) {
	$services = get_option('ping_sites');

	$services = explode("\n", $services);
	foreach ( (array) $services as $service ) {
		$service = trim($service);
		if ( '' != $service )
			weblog_ping($service);
	}

	return $post_id;
}