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
