CFFI Python Example - Part 1/2

generate_cffi_example_module.py

# Generate module `cffi_example` using `python3 generate_cffi_example_module.py`
import os

from cffi import FFI

ffi = FFI()

person_header = """
    unsigned int decompress(const uint8_t* raw_data, size_t compressed_size, uint8_t* decompressed_data);
"""

ffi.set_source("cffi_example.lzo_ext", person_header + """
    #include "lzo/lzo1z.h"
    unsigned int decompress(const uint8_t* raw_data, size_t compressed_size, uint8_t* decompressed_data)
    {
        long unsigned int decompressed_length_size = 0;
        lzo1z_decompress ((const unsigned char *) raw_data, compressed_size,
                        (unsigned char *) decompressed_data, &decompressed_length_size, NULL);
        return decompressed_length_size;
    }
""", libraries=["lzo2"])

ffi.cdef(person_header)

if __name__ == "__main__":
    ffi.compile()