view mercurial/mpatch.h @ 38899:7a154778fb46

changegroup: consolidate tree manifests sending into cg1packer

Previously, we overrode a method to control how manifests were
serialized. This method was redefined on cg3packer to send tree
manifests.

This commit moves the tree manifests sending variation to cg1packer
and teaches the cgpacker constructor to control which version to
use.

After these changes, cg3packer was empty. So it has been removed.

Differential Revision: https://phab.mercurial-scm.org/D4081

#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