Yeow

Theme

Timer Channel ​

The underlying implementation of the timer mechanism. setTimeout / setInterval work through this channel.

Call Format ​

json
{ "type": "<type>", "cb": "<callbackId>", "delay": <ms> }

Operations ​

timeout ​

Delayed execution (underlying setTimeout).

  • delay: milliseconds (lower bound 0)
  • After it expires, a callback message is delivered to JS through cb (one-shot)

interval ​

Repeated execution (underlying setInterval).

  • delay: milliseconds (lower bound 1 — scheduleAtFixedRate's period must be >0)
  • A callback message is delivered to JS through cb every delay milliseconds
  • Until JS calls clearInterval to stop it (see below)

clear ​

Cancels a timer task (underlying clearTimeout / clearInterval).

json
{ "type": "clear", "cb": "<callbackId>" }
  • cb: the callback ID registered by the cancelled timer (matches the one in the timeout / interval request)
  • The runtime must cancel the corresponding Java timer task and release its registration — locally deregistering the callback alone is not enough to stop interval's periodic delivery (it would create a permanently idle zombie task until the plugin is unloaded)