1 from __future__ import absolute_import

     2 

     3 import cffi

     4 import os

     5 

     6 ffi = cffi.FFI()

     7 mpatch_c = os.path.join(os.path.join(os.path.dirname(__file__), 'mercurial',

     8                                      'mpatch.c'))

     9 ffi.set_source("_mpatch_cffi", open(mpatch_c).read(),

    10                include_dirs=["mercurial"])

    11 ffi.cdef("""

    12 

    13 struct mpatch_frag {

    14        int start, end, len;

    15        const char *data;

    16 };

    17 

    18 struct mpatch_flist {

    19        struct mpatch_frag *base, *head, *tail;

    20 };

    21 

    22 extern "Python" struct mpatch_flist* cffi_get_next_item(void*, ssize_t);

    23 

    24 int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist** res);

    25 ssize_t mpatch_calcsize(size_t len, struct mpatch_flist *l);

    26 void mpatch_lfree(struct mpatch_flist *a);

    27 static int mpatch_apply(char *buf, const char *orig, size_t len,

    28                         struct mpatch_flist *l);

    29 struct mpatch_flist *mpatch_fold(void *bins,

    30                        struct mpatch_flist* (*get_next_item)(void*, ssize_t),

    31                        ssize_t start, ssize_t end);

    32 """)

    33 

    34 if __name__ == '__main__':

    35     ffi.compile()