/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2005-2008 Poul-Henning Kamp
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#define FIFOLOG_PT_BYTES_PRE            0
#define FIFOLOG_PT_BYTES_POST           1
#define FIFOLOG_PT_WRITES               2
#define FIFOLOG_PT_FLUSH                3
#define FIFOLOG_PT_SYNC                 4
#define FIFOLOG_PT_RUNTIME              5
#define FIFOLOG_NPOINT                  6

struct fifolog_writer {
        unsigned                        magic;
#define FIFOLOG_WRITER_MAGIC            0xf1f0706

        struct fifolog_file             *ff;

        unsigned                        writerate;
        unsigned                        syncrate;
        unsigned                        compression;

        int                             cleanup;

        intmax_t                        cnt[FIFOLOG_NPOINT];

        uint32_t                        seq;
        off_t                           recno;
        uint8_t                         flag;
        time_t                          last;

        ssize_t                         obufsize;
        u_char                          *obuf;

        ssize_t                         ibufsize;
        ssize_t                         ibufptr;
        u_char                          *ibuf;

        time_t                          starttime;
        time_t                          lastwrite;
        time_t                          lastsync;
};

struct fifolog_writer *fifolog_write_new(void);
const char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, unsigned compression);
int fifolog_write_record(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
int fifolog_write_poll(struct fifolog_writer *f, time_t now);
int fifolog_write_record_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
void fifolog_write_close(struct fifolog_writer *f);
void fifolog_write_destroy(struct fifolog_writer *f);
extern const char *fifolog_write_statnames[];