octarion/libuhttpd

A Lightweight and fully asynchronous HTTP server library based on libev for Embedded Linux.

libuhttpd(中文)

A very flexible, lightweight and high performance HTTP server library based on libev and http-parser for Embedded Linux.

Features

• Lightweight and high performance
• Use libev as its event backend
• Support HTTPS - OpenSSL, mbedtls and CyaSSl(wolfssl)
• Support IPv6
• Support CGI
• Support plugin
• Support upload large file
• Support HTTP range requests
• Support multi-process model - The same multi-process model as Nginx
• Flexible - you can easily extend your application to have HTTP/HTTPS services
• Code structure is concise and understandable, also suitable for learning

Dependencies

• libev - A full-featured and high-performance event loop
• http-parser - A high performance parser for HTTP messages written in C
• mbedtls - If you choose mbedtls as your SSL backend
• wolfssl - If you choose wolfssl as your SSL backend
• openssl - If you choose openssl as your SSL backend

Benchmark

Nginx

$ wrk -t4 -c400 -d10s http://localhost:80/test.html
Running 10s test @ http://localhost:80/test.html
4 threads and 400 connections
Thread Stats   Avg      Stdev     Max   +/- Stdev
	Latency     3.54ms    7.32ms 224.58ms   93.30%
	Req/Sec    40.63k    12.49k   96.29k    74.50%
1622012 requests in 10.05s, 385.09MB read
Requests/sec: 161390.39
Transfer/sec:     38.32MB

libuhttpd

$ wrk -t4 -c400 -d10s http://localhost:8080/test.html
Running 10s test @ http://localhost:8080/test.html
4 threads and 400 connections
Thread Stats   Avg      Stdev     Max   +/- Stdev
	Latency     2.12ms    3.01ms  31.30ms   89.26%
	Req/Sec    70.87k    12.53k  142.54k    79.75%
2826394 requests in 10.05s, 547.18MB read
Requests/sec: 281328.83
Transfer/sec:     54.46MB

Build

~/libuhttpd/$ mkdir build && cd build
~/libuhttpd/build$ cmake ..
~/libuhttpd/build$ make

Run Example

Run

~/libuhttpd/build$ ./example/simple_server -v -a :8080

Then use the curl to test

$ curl 'http://127.0.0.1:8000/echo' -v

Install on OpenWrt

opkg update
opkg list | grep libuhttpd
opkg install libuhttpd-nossl

If the install command fails, you can compile it yourself.

Example

Contributing

If you would like to help making libuhttpd better, see the CONTRIBUTING.md file.