view mercurial/bdiff.h @ 43178:1b2200bd06b6

rust-cpython: add safe wrapper representing shared data borrowed from PyObject

PySharedRef is a tempoary wrapper around PySharedRefCell. It provides safe
functions for each shared data. $shared_accessor implements a safe method
to construct PySharedRefCell.

This allows us to add more than once PySharedRefCell to a Python object.

#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_

#include "compat.h"

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);

#endif