hub_create/3

Documentation
- Reference manual
- Packages
  - SWI-Prolog HTTP support
    - library(http/hub): Manage a hub for websockets

Availability::- use_module(library(http/hub)).

[det]hub_create(+Name, -Hub, +Options)

Create a new hub. Hub is a dict containing the following public information:

Hub . name: The name of the hub (the Name argument)
queues . event: Message queue to which the hub thread(s) can listen.

After creating a hub, the application normally creates a thread that listens to Hub.queues.event and exposes some mechanisms to establish websockets and add them to the hub using hub_add/3.

See also: http_upgrade_to_websocket/3 establishes a websocket from the SWI-Prolog webserver.