Hi:
I am trying to figure out how event handling dispatchers work in flash/.swf.
Specifically, is there a *separat*e event handler thread that invokes the
callback event handler methods or is that done by the main thread, in between
frame by frame execution ?
I've googled this, and looked at the tamarin source and also at the gnash
source. Unfortunately, I am not a C++ programmer so it's proven a bit hard to
follow.
My understanding so far is that there is:
1) There is only one (1) execution thread. No separate event-dispatch thread
exists in the player. (unlike, say java, where all events are dispatched in the
awt-event-dispatcher).
2) Events and callbacks (such as with setTimeout) are "queued" and the main
thread pops events off the queue and invokes them. This is true both for events
recieved from the operating system (network data, for example) and for things
like mouseclicks.
3) The main method also invokes code at each "frame". It invokes queued events
in between frames (or maybe along with them, don't know ?)
Is this understanding by are large true ? This implies that it is possible to
hang the player entirely by saying "while (true) { }" in an event handler ?
Best regards,
--j
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