Manual

Compilation

To compile run:

$ cython selfrepairing.pyx (not needed)
$ python setup.py build

Note: After compiling you might want to move selfrepairing.so to the working dir by (or equivalent):

$ cp build/lib.linux-i686-2.7/selfrepairing.so .

The code in test.py is the best point to start reading and understanding how selfrepairing.so works. Execute the following:

$ python test.py

Files decode.py and encode.py include a real example of how to encode and decode files using SelfRepairing codes.

Run:

$ python encode.py somefile.dat

to encode any given file somefile.dat to a list of n=7 blocks:

After the encoding we can check the repair property as follows (repairing block 0 from blocks 1 and 2):

$ rm somefile.dat_0
$ python xor.py somefile.dat_1 somefile.dat_2 somefile.dat_0

Finally, we can try the decoding property as follows:

$ rm somefile.dat_2 somefile.dat_4 somefile.dat_5 somefile.dat_6
$ python decode.py somefile.dat
$ diff somefile.dat somefile.dat_decoded