[whatwg] WebWorkers and images
Benjamin Poulain
benjamin.poulain at nokia.com
Fri Jan 7 04:38:20 PST 2011
Hi,
On 01/07/2011 12:24 PM, ext Berend-Jan Wever wrote:
> I assume you've discussed this before, but couldn't find any record. Please
> let me know if there is a document somewhere that explains why WebWorkers
> have so little access to browser features.
I did not see the original discussion but for me this make sense in the
scope defined for web workers:
"This specification defines an API that allows Web application authors
to spawn background workers running scripts in parallel to their main
page. This allows for thread-like operation with message-passing as the
coordination mechanism."
Since it is a _message passing_ concurrent system, you should not have
to care about concurrent access to objects.
To have image manipulation in workers, you would need a way to pass
images as messages between the main thread and a worker thread. If it is
not already possible, I guess that could be a nice addition to the
specification.
cheers,
Benjamin
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