Code Quality Rank: L1
Programming language: C
License: GNU General Public License v3.0 only
Tags: Networking    
Latest version: v0.0.4

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WAFer is a C language-based ultra-light scalable server-side web applications framework. Think node.js for C programmers. Because it's written in C for the C eco system, WAFer is wafer-thins with a memory footprint that is only a fraction of that of node.js and other bulky frameworks.

Just copy server.c (say, as myserver.c), put your code inside the function void server(Request request) in myserver.c and, make with make SERVER=myserver, and you are good to go.

WAFer can operate in many different configurations, all selected at compile time. They include:

  1. Single-threaded (Default) or multi-threaded (make with THREADS=n where n>0)

  2. Select(Default) or epoll (make with LOOP=epoll) based event loop

  3. C10K mode (make with LOOP=epoll MAX_CON_CONS=n where n>10,000)

Default port is 4242. Set environment variable 'PORT' to change it.

That's really it. The source comes with a simple example example.c to get you started.

Note to Contributors

Thank you for making this a wonderful project!

Here's our preferred formatting style:

find . \( -name '*.c' -o -name '*.h' \) -exec indent --no-tabs  --linux-style --line-length 90 --indent-level 4 -bli0 \{\} \;


  1. J. David Blackstone and Feng Shen, whose web servers have been repurposed to build this platform.

  2. Mark Karpeles for the incredible number of bug fixes!

  3. Fine folks at /r/programming for the honest and constructive feedback.