Wrapping asynchronous code in a synchronous method call

[P-development]

Hi,

I wonder how I would go about wrapping some aSynchronous code into a synchronous method call, like the NSURLConnection sendSynchronousRequest:returningResponse:error: method. It wraps the aSynchronous NSURLConnection code into this synchronous method. I'd like to do this do because I need to alter some of the delegate methods of NSURLConnection, but I do need it to be synchronous.

How would I do this? Or, in general, how could I block the calling thread until I notify it?

Thanks in advance.

[P-development]

Anyone?

[kelvin]

There is a way to use NSURLConnection's delegate methods synchronously. However, unless you know about how NSRunLoop works, it's not quite straightforward.

In general, you'll want to create the NSURLConnection and _not_ have it start immediately. Instead, you should schedule NSURLConnection to run in its own run mode in the current NSRunLoop, then start the connection. You should then spin the run mode in the current NSRunLoop until the delegate method flags that the connection has finished loading (or failed loading). After which, you can continue on w/ the rest of your application.

If you want code and a more complete description, there's a blog post about it here:
Using NSURLConnection Synchronously via Asynchronous Delegates | stackq

-Kelvin