dirstate: move opendirstatefile to dirstatemap
As part of moving the dirstate storage logic to another class, let's move
opendirstatefile to dirstatemap. This will allow extensions to replace the
pending abstraction.
Future patches will move the consumers of _opendirstatefile into dirstatemap as
well.
Differential Revision: https://phab.mercurial-scm.org/D757
from __future__ import absolute_import
import cffi
import os
ffi = cffi.FFI()
mpatch_c = os.path.join(os.path.join(os.path.dirname(__file__), '..',
'mpatch.c'))
ffi.set_source("mercurial.cffi._mpatch", open(mpatch_c).read(),
include_dirs=["mercurial"])
ffi.cdef("""
struct mpatch_frag {
int start, end, len;
const char *data;
};
struct mpatch_flist {
struct mpatch_frag *base, *head, *tail;
};
extern "Python" struct mpatch_flist* cffi_get_next_item(void*, ssize_t);
int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist** res);
ssize_t mpatch_calcsize(size_t len, struct mpatch_flist *l);
void mpatch_lfree(struct mpatch_flist *a);
static int mpatch_apply(char *buf, const char *orig, size_t len,
struct mpatch_flist *l);
struct mpatch_flist *mpatch_fold(void *bins,
struct mpatch_flist* (*get_next_item)(void*, ssize_t),
ssize_t start, ssize_t end);
""")
if __name__ == '__main__':
ffi.compile()