Mercurial > hg
view setup_bdiff_cffi.py @ 29960:da75bc36202c
manifest: remove dependency on treeinmem from manifest.add
Currently manifest.add uses the treeinmem option to know if it can call
fastdelta on the given manifest instance. In a future patch we will be moving
add() to be on the manifestrevlog, so it won't have access to the treeinmem
option anymore. Instead, let's have it actually check if the given manifest
instance supports the fastdelta operation.
This also means that if treemanifest or any implementation eventually implements
fastdelta(), it will automatically benefit from this code path.
author | Durham Goode <durham@fb.com> |
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date | Tue, 20 Sep 2016 12:24:01 -0700 |
parents | a8933d992a71 |
children |
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from __future__ import absolute_import import cffi import os ffi = cffi.FFI() ffi.set_source("_bdiff_cffi", open(os.path.join(os.path.join(os.path.dirname(__file__), 'mercurial'), 'bdiff.c')).read(), include_dirs=['mercurial']) ffi.cdef(""" struct bdiff_line { int hash, n, e; ssize_t len; const char *l; }; struct bdiff_hunk; struct bdiff_hunk { int a1, a2, b1, b2; struct bdiff_hunk *next; }; int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr); int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn, struct bdiff_hunk *base); void bdiff_freehunks(struct bdiff_hunk *l); void free(void*); """) if __name__ == '__main__': ffi.compile()