view mercurial/bdiff.h @ 49195:411d591e0a27

auto-upgrade: introduce a way to auto-upgrade to/from dirstate-v2

This is similar to what we introduced for `share-safe`, but apply to the
tracked-hint feature.

Differential Revision: https://phab.mercurial-scm.org/D12614

#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