view mercurial/mpatch.h @ 49562:27bff60887fe stable

perf-unbundle: do a quick and dirty fix to make it run on more commit

Without this change, the perf commands fails within the
f67741e8264b::18415fc918a1 range (boundary excluded).

Check inline comment for details.

With this fix, the command is able to run on this range, with a slightly
different behavior (as no revset is "uninlined"). However this is still much
better than not being able to run anything in this range. Especially because
that range do see some performance regression for unbundle.

#ifndef HG_MPATCH_H
#define HG_MPATCH_H

#define MPATCH_ERR_NO_MEM -3
#define MPATCH_ERR_CANNOT_BE_DECODED -2
#define MPATCH_ERR_INVALID_PATCH -1

struct mpatch_frag {
	int start, end, len;
	const char *data;
};

struct mpatch_flist {
	struct mpatch_frag *base, *head, *tail;
};

int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist **res);
ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);
void mpatch_lfree(struct mpatch_flist *a);
int mpatch_apply(char *buf, const char *orig, ssize_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);

#endif