Module jls.util.Worker
Provides a way to process tasks in background.
The worker thread interacts with the current thread via message passing.
Class Worker
| Worker:new (fn[, data]) | Creates a new Worker. |
| worker:postMessage (message) | Sends a message to the worker. |
| worker:onMessage (message) | Receives a message from the worker. |
| worker:close () | Closes the worker. |
Class Worker
The Worker class.
The Worker provides a way to process task in background.
- Worker:new (fn[, data])
-
Creates a new Worker.
Parameters:
- fn function the function that the worker will execute
- data the data to pass to the worker function (optional)
Returns:
-
a new Worker
Usage:
local w = Worker:new(function(w) function w:onMessage(message) print('received in worker', message) w:postMessage('Hi '..tostring(message)) end end) function w:onMessage(message) print('received from worker', message) self:close() end w:postMessage('John')
- worker:postMessage (message)
-
Sends a message to the worker.
Parameters:
- message the message to send
Returns:
-
jls.lang.Promise
a promise that resolves once the message is sent.
- worker:onMessage (message)
-
Receives a message from the worker.
Parameters:
- message the message to handle
- worker:close ()
- Closes the worker.