wp_is_large_network()
Determines whether or not we have a large network.
WordPress File wp-includes/ms-functions.php
wp_maybe_update_network_site_counts()
Updates the count of sites for the current network.
wp_maybe_update_network_user_counts()
Updates the network-wide users count.
wp_network_admin_email_change_notification()
Sends an email to the old network admin email address when the network admin email address changes.
wp_schedule_update_network_counts()
Schedules update of the network-wide counts for the current network.
wp_update_network_counts()
Updates the network-wide counts for the current network.
wp_update_network_site_counts()
Updates the network-wide site count.
wp_update_network_user_counts()
Updates the network-wide user count.
wpmu_activate_signup()
Activates a signup.
wpmu_create_blog()
Creates a site.