Async Handler Support

[donpark]

Because response is expected to be returned instead of being passed to a completion block passed into handler blocks, handler blocks are in-effect required to be synchronous.

My handler block needs to build responses based on query result from YapDatabase which only supports async so I had to use dispatch_semaphore to block the calling thread until query finishes.

It would be nice of optional async handler blocks are supported as an optional feature.

[swisspol]

You might be interested in https://github.com/Objective-Cloud/OCFWebServer which is a fork of GCDWebServer which does exactly this. Might be outdated though.

[swisspol]

I added support for async handlers on a branch which I will merge later after more testing has been completed as that's a big change. Try it out and let me know!

[donpark]

Wow. Thanks for the quick action. Will try & report the result. 👍

[donpark]

Async feature works as advertised. I'll be hooking up GCDWebServer to JavaScriptCore cause handling large number of routes gets pretty tedious in Objective-C. Thanks again @swisspol

[swisspol]

I've merged to master and released v3.0.

[ChristianKienle]

@donpark If you wanna have a more sophisticated route handling you can check out https://github.com/Objective-Cloud/OCFWeb which builds on top of OCFWebServer which is a fork of GCDWebServer. I will probably switch it back to GCDWebServer though but this is an implementation detail.

[donpark]

Hi @ChristianKienle, I'm happy with GCDWebServer now that it supports async handlers. Besides, I spent a good day implementing SSE on top of it so I think I'll stay around for awhile. ;-)