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Re: Timeouts and Thread(?) Interruption/Execution

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Gene Wirchenko wrote:
> Dear JavaScripters:
>
>     Something else that the texts do not seem to cover:
>
>     Suppose that I have a form and a timeout.  The form has
> validation on the fields.  If a timeout occurs during the execution of
> validation code, what happens?

The timeout waits until the executing code finishes.

>     Is the validation code terminated?

No.

>  Interrupted then resumed
> somehow?

No.

>  Executed in parallel with the timeout code?

In principle, if a web page consisted of a frameset (or embedded 
IFRAMEs) so there were multiple ECMAScript global objects (one for each 
frame/window) and the timeout was set in one frame/window and the other 
code was executing in another then it may be possible for the two to 
execute in parallel, but I have not yet seen that possibility 
demonstrated in any actual environment
(and I have seen test code that should have been able to demonstrate 
that behaviour if it did exist).

>     Or is this undefined?

The specification makes no provision for the interruption of executing 
code or for parallel execution, and does not provide any of the tools 
that would be necessary in order to render doing that 'safe'.

Richard. 

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Thread

Timeouts and Thread(?) Interruption/Execution Gene Wirchenko <genew@ocis.net> - 2011-11-24 14:29 -0800
  Re: Timeouts and Thread(?) Interruption/Execution "Richard Cornford" <Richard@litotes.demon.co.uk> - 2011-11-24 22:44 +0000
  Re: Timeouts and Thread(?) Interruption/Execution Dr J R Stockton <reply1147@merlyn.demon.co.uk> - 2011-11-25 20:47 +0000

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