mercurial/bdiff.h

clonebundles: optional memory-requirement attribution

The new REQUIREDRAM option allows a client to skip bundles it isn't
expected to handle well, e.g. without swapping. This allows a fallback
path to be provided e.g. using zstd level 10 instead of 22.

Differential Revision: https://phab.mercurial-scm.org/D8645

#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