NOTE: I'm not actively supporting this project. Please use at your own risk.
Aardwolf is an asynchronous HTTP API service provider for C# that does not depend on ASP.NET nor IIS. Aardwolf is based on the HttpListener API provided as part of the .NET framework and the Windows implementation makes use of the low-level HTTP.SYS driver to handle and queue HTTP requests in the kernel and forward those to user-mode applications. IIS versions 6 and up make use of this same HTTP.SYS driver so it is a trusted and well-tested component that can be relied upon for production scenarios.
The Aardwolf framework builds an asynchronous request event loop to handle HTTP requests, taking full advantage of the asynchronous features of the .NET 4.5 framework. A very simple and efficient C# library is exposed to the developer who wants to write fast, asynchronous web services or web sites.
At this time, the framework is solid and runs very efficiently. However, it is incomplete with regard to features.
For an example which uses this framework, see my rest0 project at https://github.com/JamesDunne/rest0-api
GET /
200 OK - empty response
Connections, Requests/Second
15, 59107
17, 59935
19, 60587
21, 61089
23, 61516
25, 61877
27, 62182
29, 62422
31, 62639
33, 62827
35, 62978
37, 63114
39, 63242
41, 63353
43, 63451
45, 63547
47, 63626
49, 63698
51, 63773
53, 63846
55, 63900
57, 63952
59, 64004
61, **64044** (max)
328, 63640
489, 62689
651, 62124
812, 61771
960, 61521
**Test system:**
Windows 7 Ultimate x64 SP1
Intel Core i5-2500K @ 3.30GHz
8 GB RAM
Crucial SSD 64GB, C300-CTFDDAC064MAG
WEI(processor): 7.6
WEI(ram): 7.6
WEI(disk): 7.6
The mono project also has an HttpListener implementation which works on more OSes than just Windows. Its performance is quite comparable to Windows, if perhaps not better on some OSes!
Unfortunately, as of the time of this writing, the mono project does not fully support the .NET 4.5 async support that was recently released with Visual Studio 2012 so this project will not run on mono yet. At least, I could not get it to run. I am certainly no mono expert and I don't use it very much but I'm not opposed to supporting it once it achieves the milestone of having stable support for the .NET 4.5 framework. It may be only a matter of time until support will be added. I know the async language extensions were added to mono's compilers, but the framework parts remain to be worked on.