I'd love to know if my explanation made any sense when someone gets a
free moment. If it sounds like I'm smoking crack, please let me know
and I'll check myself into rehab.
Thanks!
-R
--- In flexcoders@yahoogroups.com, "robbarreca" <[EMAIL PROTECTED]> wrote:
>
> So when I say "thread" maybe I'm using the wrong terminology. I'm not
> actually talking about two different users/browsers. I'm talking about
> the same browser running two calls of load().
>
> Let me expand:
>
> function onInitialize() {
> loader.addEventListener(handleComplete);
> load(1); // Say this takes 20 seconds to complete load
> load(2); // But this one only takes 5 seconds to complete
> }
>
> private var storedFlag:uint = 0;
>
> function load(flag:uint) {
> storedFlag = flag;
> loader.loadSomeStuff();
> }
>
> function handleComplete(event:Event) {
> // What is storedFlag here?
> }
>
> The execution goes like this:
>
> load(1);
>
> load(2);
>
> handleComplete(event1); // Triggered from the load(1) which is the
> race since this storedFlag == 2, but this is handling the completion
> of the first load. I really want to get that flag data from the event
> object so there is no race condition.
>
> handleComplete(event2);
>
> This is a simplified example, but I really do have a use case for
> this. Did I do a better job of explaining this time?
>
> -R
>
> --- In flexcoders@yahoogroups.com, "Daniel Gold" <danielggold@> wrote:
> >
> > It makes sense when dealing with concurrent programming, but Flash
> is single
> > threaded and you won't have a case where multiple threads are task
> switching
> > and simultaneously executing functions. Every function call and event
> > handler in flex is basically "in-lined" and will execute to
completion.
> >
> > On Mon, Jun 9, 2008 at 5:11 PM, robbarreca <rob@>
> > wrote:
> >
> > > Sorry, I must have not explained well. The race condition I'm
> talking
> > > about exists here:
> > >
> > > thread 1: calls load() and say someFlag gets set to 1;
> > > thread 2: calls load() and someFlag is set to 2;
> > > thread 1: the first load is complete and handleComplete() is called,
> > > but someFlag is set to 2 when the value I want is 1.
> > >
> > > I want to attach a copy of the value of someFlag to the event so in
> > > handleComplete() I could call event.target.someFlagCopy and
always get
> > > the value that was set in *that* thread's load() call.
> > >
> > > Does that make any sense?
> > >
> > > -R
> > >
> > >
> > > --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>,
> "Daniel
> > > Gold" <danielggold@> wrote:
> > > >
> > > > does determineFlag() do some asynch service call? If so you
need to
> > > wait and
> > > > raise an event or update a var in a model and listen for changes
> > > that way.
> > > > Otherwise your determineFlag() method will run to completion
> before the
> > > > loader.loadSomeStuff() line is executed, Flash is single threaded
> > > for user
> > > > code execution so you shouldn't have a race condition there
> > > >
> > > > On Mon, Jun 9, 2008 at 3:55 PM, robbarreca <rob@>
> > > > wrote:
> > > >
> > > > > Say I have two functions load() and handleComplete(event:Event).
> > > Right
> > > > > now to get custom data to handleComplete I do something like
this
> > > > >
> > > > > private var someFlag:uint = 0;
> > > > >
> > > > > function load() {
> > > > > loader.addEventListener(handleComplete);
> > > > > someFlag = determineFlag();
> > > > > loader.loadSomeStuff();
> > > > > }
> > > > >
> > > > > function handleComplete(event:Event) {
> > > > > trace(someFlag);
> > > > > }
> > > > >
> > > > > But if I call this super fast, someFlag is gonna be wrong.
> I've seen a
> > > > > method where you can add an anonymous function somehow, but
> I'm pretty
> > > > > sure that even faced the same race condition problem. What
is the
> > > > > *proper* way to go about this?
> > > > >
> > > > >
> > > > >
> > > >
> > >
> > >
> > >
> >
>
