lukego

This is a simple example of a low-level script that uses the Snabb Switch 82599 10G ethernet device driver directly to feed packets into a C function provided as a shared library. Written for a discussion with Pavel Odintsov.

Here is now to run it:

1. Compile snabbswitch to get snabb executable.
2. Compile a C callback function to a shared library e.g. capturecallback.c below.
3. Run: sudo ./snabb snsh capture2c <pciaddress> <filename.so>

The output should look something like this:

pklaus

#!/usr/bin/env python
"""
LICENSE http://www.apache.org/licenses/LICENSE-2.0
"""

import argparse
import datetime
import sys
import time
import threading

ofan

Lisp interpreter in 90 lines of C++

I've enjoyed reading Peter Norvig's recent articles on Lisp. He implements a Scheme interpreter in 90 lines of Python in the first, and develops it further in the second.

Just for fun I wondered if I could write one in C++. My goals would be

1. A Lisp interpreter that would complete Peter's Lis.py test cases correctly...
2. ...in no more than 90 lines of C++.

Although I've been thinking about this for a few weeks, as I write this I have not written a line of the code. I'm pretty sure I will achieve 1, and 2 will be... a piece of cake!