annotate mercurial/mpatch.h @ 40396:973ff03d9bc0

exewrapper: convert to _tcsxxx functions for Unicode compatability

This fixes more than 50 tests on py3 on Windows when enabled, mostly hooks and
such that invoked `hg` directly.  187 left to go.

I skipped doing the abort printing with Unicode because of apparent issues with
MinGW [1].  It may be moot though, as MinGW isn't listed as a supported compiler
after 3.4 [2].

[1] https://stackoverflow.com/questions/17700797/printf-wprintf-s-s-ls-char-and-wchar-errors-not-announced-by-a-compil
[2] https://wiki.python.org/moin/WindowsCompilers

#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