/*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*-
 *
 * librsync -- the library for network deltas
 * $Id: buf.h,v 1.8 2001/03/18 02:05:33 mbp Exp $
 * 
 * Copyright (C) 2000, 2001 by Martin Pool <mbp@samba.org>
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
/* Modified by Graham Keeling, from 2011 */

#ifndef RS_BUF_H
#define RS_BUF_H

#include "zlibio.h"

#include <librsync.h>
#include <openssl/md5.h>

extern size_t block_len;
extern size_t strong_len;

typedef struct rs_filebuf rs_filebuf_t;
struct rs_filebuf
{
        BFILE *bfd;
	FILE *fp;
        gzFile zp;
	int fd;
	char *buf;
        size_t buf_len;
	unsigned long long bytes;
	size_t data_len;
	int do_known_byte_count;
	struct cntr *cntr;
	MD5_CTX md5;
};

rs_filebuf_t *rs_filebuf_new(BFILE *bfd, FILE *fp, gzFile zp, int fd, size_t buf_len, size_t data_len, struct cntr *cntr);
void rs_filebuf_free(rs_filebuf_t *fb);
rs_result rs_infilebuf_fill(rs_job_t *, rs_buffers_t *buf, void *fb);
rs_result rs_outfilebuf_drain(rs_job_t *, rs_buffers_t *, void *fb);
rs_result do_rs_run(rs_job_t *job, BFILE *bfd, FILE *in_file, FILE *out_file, gzFile in_zfile, gzFile out_zfile, int infd, int outfd, struct cntr *cntr);

rs_result rs_async(rs_job_t *job,
	rs_buffers_t *rsbuf, rs_filebuf_t *infb, rs_filebuf_t *outfb);



rs_result rs_patch_gzfile(FILE *basis_file, FILE *delta_file, gzFile delta_zfile, FILE *new_file, gzFile new_zfile, rs_stats_t *stats, struct cntr *cntr);
rs_result rs_sig_gzfile(FILE *old_file, gzFile old_zfile, FILE *sig_file, size_t new_block_len, size_t strong_len, rs_stats_t *stats, struct cntr *cntr);
rs_result rs_delta_gzfile(rs_signature_t *sig, FILE *new_file, gzFile new_zfile, FILE *delta_file, gzFile delta_zfile, rs_stats_t *stats, struct cntr *cntr);


#endif
