NAME

       wl_interface

SYNOPSIS

       #include <wayland-util.h>

   Data Fields
       const char * name
       int version
       int method_count
       const struct wl_message * methods
       int event_count
       const struct wl_message * events

Detailed Description

       Protocol object interface

       A wl_interface describes the API of a protocol object defined in the Wayland protocol
       specification. The protocol implementation uses a wl_interface within its marshalling
       machinery for encoding client requests.

       The name of a wl_interface is the name of the corresponding protocol interface, and
       version represents the version of the interface. The members method_count and event_count
       represent the number of methods (requests) and events in the respective wl_message
       members.

       For example, consider a protocol interface foo, marked as version 1, with two requests and
       one event.

       <interface name="foo" version="1">
         <request name="a"></request>
         <request name="b"></request>
         <event name="c"></event>
       </interface>

       Given two wl_message arrays foo_requests and foo_events, a wl_interface for foo might be:

       struct wl_interface foo_interface = {
               "foo", 1,
               2, foo_requests,
               1, foo_events
       };

       Note:
           The server side of the protocol may define interface implementation types that
           incorporate the term interface in their name. Take care to not confuse these server-
           side structs with a wl_interface variable whose name also ends in interface. For
           example, while the server may define a type struct wl_foo_interface, the client may
           define a struct wl_interface wl_foo_interface.

       See also:
           wl_message

           wl_proxy

           Interfaces

           Versioning

Field Documentation

   int wl_interface::event_count
       Number of events

   const struct wl_message* wl_interface::events
       Event signatures

   int wl_interface::method_count
       Number of methods (requests)

   const struct wl_message* wl_interface::methods
       Method (request) signatures

   const char* wl_interface::name
       Interface name

   int wl_interface::version
       Interface version

Author

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