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662cb04c25
Quoth the man-page:
Fifologs provide a compact round-robin circular storage for recording
text and binary information to permanent storage in a bounded and pre-
dictable fashion, time and space wise.
Not yet connected to the build, but feel free to test & review.
63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
/*-
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* Copyright (c) 2005-2008 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/stdint.h>
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/* CREATORS */
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const char *fifolog_create(const char *fn, off_t size, unsigned recsize);
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/* WRITERS */
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struct fifolog_writer;
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struct fifolog_writer *fifolog_write_new(void);
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const char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, int compression);
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int fifolog_write_bytes(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, unsigned len);
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void fifolog_write_bytes_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, unsigned len);
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int fifolog_write_poll(struct fifolog_writer *f, time_t now);
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void fifolog_write_close(struct fifolog_writer *f);
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void fifolog_write_destroy(struct fifolog_writer *f);
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int fifolog_write_flush(struct fifolog_writer *f);
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extern const char *fifolog_write_statnames[];
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/* READERS */
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typedef void fifolog_reader_render_t(void *priv, time_t when, unsigned flag, const unsigned char *p, unsigned l);
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struct fifolog_reader;
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struct fifolog_reader *fifolog_reader_open(const char *fname);
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off_t fifolog_reader_seek(const struct fifolog_reader *fl, time_t t0);
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void fifolog_reader_process(struct fifolog_reader *fl, off_t from, fifolog_reader_render_t *func, void *priv, time_t end);
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/* UTILS */
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time_t get_date(char *p);
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#if (__FreeBSD__ < 7)
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int expand_number(char *_buf, int64_t *_num);
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#endif
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