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"""
Builds the C Python wrapper for libvbz
"""
import os
from cffi import FFI
vbz_include_paths = os.environ["VBZ_INCLUDE_PATHS"].split(";")
vbz_libs = os.environ["VBZ_LINK_LIBS"].split(";")
ffibuilder = FFI()
ffibuilder.set_source(
"_vbz",
"""
#include <vbz.h>
""",
include_dirs=vbz_include_paths,
extra_objects=vbz_libs,
source_extension='.cpp',
libraries=['c', 'stdc++'],
extra_compile_args=['-std=c++11'],
)
ffibuilder.cdef("""
typedef uint32_t vbz_size_t;
typedef struct {
bool perform_delta_zig_zag;
unsigned int integer_size;
unsigned int zstd_compression_level;
unsigned int vbz_version;
} CompressionOptions;
bool vbz_is_error(vbz_size_t result_value);
vbz_size_t vbz_max_compressed_size(
vbz_size_t source_size,
CompressionOptions const* options
);
vbz_size_t vbz_decompressed_size(
void const* source,
vbz_size_t source_size,
CompressionOptions const* options
);
vbz_size_t vbz_compress_sized(
void const* source,
vbz_size_t source_size,
void* destination,
vbz_size_t destination_capacity,
CompressionOptions const* options
);
vbz_size_t vbz_decompress_sized(
void const* source,
vbz_size_t source_size,
void* destination,
vbz_size_t destination_capacity,
CompressionOptions const* options
);
""")
if __name__ == "__main__":
ffibuilder.compile()
|
