Delta

Delta intercepts data and divert it to different storage directories.

Usage

Compile and Test

1. Compile libwrite_hook

$ gcc -g -shared -fPIC -pthread -ldl -w -o libwrite_hook.so lib/libwrite_v3.c -Ddebug

2. Compile Test Code

Compile with sharelibrary, this will use intercepted syscall open/write

$ gcc large_write.c -o large_write -g -L. -lwrite_hook -Wl,-rpath=. -lpthread -Daccl

Or, you can directly compile

$ gcc -o large_write_no_accl large_write.c

3. Test and Compare

$ ./large_write
...

$ ./large_write_no_accl
...