I wrote this code as an exercise in systems programming with C. This is a simple multi-threaded webserver. Each request is executed in a separate thread and the threads are managed by a thread pool.
The webserver serves cgi scripts, located in the cgi-bin subdirectory and static files, located in the static subdirectory.
$ make server
gcc -c -o server.o server.c
gcc -c -o threadpool.o threadpool.c
gcc -o server server.o threadpool.o
$ ./server
Running on port: 8000
(In a separate terminal)
$ curl 'localhost:8000/cgi-bin/simple.py?num1=5&num2=7'
Content-Type:text/html
<h1>Addition Results</h1>
<p>5 + 7 = 12</p>
$ curl localhost:8000/static/example_org.html
<!doctype html>
...
...
</html>
Or you can use the client binary:
$ make client
gcc -pthread -std=gnu99 -ggdb -c -o client.o client.c
gcc -pthread -std=gnu99 -ggdb -o client client.o
$ ./client '/cgi-bin/simple.py?num1=5&num2=7'
GET /cgi-bin/simple.py?num1=5&num2=7 HTTP/1.1
Server: PetkoWS/1.0 (MacOS)
Content-Type: text/html
...
$ ./client /static/example_org.html
GET /static/example_org.html HTTP/1.1
Server: PetkoWS/1.0 (MacOS)
Content-Type: text/html
...
It's pretty easy to create memory leaks in C. Therefore, it's highly recommended to use valgrind to check for them:
$ make server && valgrind --leak-check=full ./serverRun some queries and press Ctrl-C in valgrind. You'll see a list of memory leaks.