This is indeed a race condition, but it looks like the fault may be in your
code.
The only thing that should transition the model from Stopped to Running is
a Resume message. If a Tick is received when the model is Stopped, the tick
needs to be ignored.
let
model' =
case msg of
...
Tick dt ->
case model of
Stopped -> Stopped
Running t -> Running (t + dt)
...
On Thu, May 26, 2016 at 8:00 AM, Fernando Alegre <[email protected]>
wrote:
>
>
> On Thursday, May 26, 2016 at 9:57:46 AM UTC-5, Fernando Alegre wrote:
>>
>> I may have found a possible race condition in Elm. It is illustrated
>> here:
>> https://gist.github.com/alphalambda/448099e95858b0ffc91fd41fdb1b437a
>>
>> If you click several times on the Pause/Resume button, it becomes
>> unresponsive after a while.
>>
>> I am using Google Chrome, so it may be a race condition in Chrome's event
>> handler. I am not sure. Any hints?
>>
>> Thanks
>>
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