Broadcast Grid Update to Workers

Sends a grid state update message to all subscribed workers via the nanonext publisher socket.

Usage

broadcast_update(socket, position, version)

Arguments

socket

A nanonext publisher socket created by create_pub_socket().

position

Integer vector of length 2. Grid coordinates c(row, col) of the newly black pixel.

version

Integer. Current version number of the grid state. Workers use this to detect stale caches.

Value

NULL (invisibly). Message is sent asynchronously.

Details

Broadcasts a pixel update message containing:

• type: Always "pixel_update"

• position: Coordinates of new black pixel

• version: Grid state version number

Workers listening on the subscriber socket will receive this message and update their local caches accordingly.

This is a non-blocking operation - the function returns immediately after queuing the message for transmission.

See also

create_pub_socket

Examples

if (FALSE) { # \dontrun{
# Broadcast update when walker terminates
broadcast_update(
  socket = pub_socket,
  position = c(10, 15),
  version = 42
)
} # }