Module protocol 

Wayland Wire Protocol Parser/Serializer

Implements the Wayland wire protocol message format for kernel-side protocol handling. Messages use a fixed header followed by typed arguments.

Wire format: [object_id: u32][size_opcode: u32][arguments...]

• size = upper 16 bits of second word (total message size in bytes)
• opcode = lower 16 bits of second word

Constants and error variants define the complete Wayland core protocol surface area. Items not yet wired into dispatch are retained for protocol completeness.

Structs

MessageHeader

Wayland message header (8 bytes on the wire)

WaylandMessage

A fully parsed Wayland protocol message.

Enums

Argument

Typed argument in a Wayland message.

WaylandError

Wayland protocol-specific error

Constants

WL_COMPOSITOR_CREATE_REGION

create_region

WL_COMPOSITOR_CREATE_SURFACE

create_surface

WL_DISPLAY_DELETE_ID

Server events: delete_id

WL_DISPLAY_ERROR

Server events: error

WL_DISPLAY_GET_REGISTRY

Client requests: get_registry

WL_DISPLAY_ID

wl_display interface – object ID 1 is always the display

WL_DISPLAY_SYNC

Client requests: sync

WL_REGISTRY_BIND

Client binds a global

WL_REGISTRY_GLOBAL

Registry announces a global

WL_REGISTRY_GLOBAL_REMOVE

Registry removes a global

WL_SHM_CREATE_POOL

create_pool

WL_SHM_FORMAT

format announcement

WL_SHM_FORMAT_ARGB8888

ARGB8888 format code

WL_SHM_FORMAT_XRGB8888

XRGB8888 format code

WL_SHM_POOL_CREATE_BUFFER

create_buffer

WL_SHM_POOL_DESTROY

destroy

WL_SURFACE_ATTACH

attach

WL_SURFACE_COMMIT

commit

WL_SURFACE_DAMAGE

damage

WL_SURFACE_DESTROY

destroy

WL_SURFACE_ENTER

enter output

WL_SURFACE_FRAME

frame

Functions

build_callback_done

Build a wl_callback.done event (for sync and frame callbacks).

build_display_delete_id

Build a wl_display.delete_id event.

build_display_error

Build a wl_display.error event.

build_registry_global

Build a wl_registry.global event.

build_shm_format

Build a wl_shm.format event.

parse_args

Parse a typed argument list from raw payload bytes according to a format string where each character describes one argument: i = Int, u = Uint, f = Fixed, s = String, o = Object, n = NewId, a = Array, h = Fd

parse_message

Parse a single Wayland wire-protocol message from the front of data.

serialize_message

Serialize a WaylandMessage into its wire-protocol byte representation.