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85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/*-
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* Copyright (c) 2003-2006, Maxime Henrion <mux@FreeBSD.org>
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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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#ifndef _STREAM_H_
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#define _STREAM_H_
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#include "misc.h"
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/* Stream filters. */
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typedef enum {
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STREAM_FILTER_NULL,
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STREAM_FILTER_ZLIB,
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STREAM_FILTER_MD5,
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STREAM_FILTER_MD5RCS
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} stream_filter_t;
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struct stream;
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struct buf;
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typedef ssize_t stream_readfn_t(void *, void *, size_t);
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typedef ssize_t stream_writefn_t(void *, const void *, size_t);
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typedef int stream_closefn_t(void *);
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/* Convenience functions for handling file descriptors. */
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stream_readfn_t stream_read_fd;
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stream_writefn_t stream_write_fd;
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stream_closefn_t stream_close_fd;
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/* Convenience functions for handling character buffers. */
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stream_readfn_t stream_read_buf;
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stream_writefn_t stream_append_buf;
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stream_closefn_t stream_close_buf;
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struct stream *stream_open(void *, stream_readfn_t *, stream_writefn_t *,
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stream_closefn_t *);
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struct stream *stream_open_fd(int, stream_readfn_t *, stream_writefn_t *,
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stream_closefn_t *);
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struct stream *stream_open_buf(struct buf *);
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struct stream *stream_open_file(const char *, int, ...);
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int stream_fileno(struct stream *);
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ssize_t stream_read(struct stream *, void *, size_t);
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ssize_t stream_read_blocking(struct stream *, void *, size_t);
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ssize_t stream_write(struct stream *, const void *, size_t);
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char *stream_getln(struct stream *, size_t *);
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int stream_printf(struct stream *, const char *, ...)
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__printflike(2, 3);
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int stream_flush(struct stream *);
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int stream_sync(struct stream *);
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int stream_truncate(struct stream *, off_t);
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void stream_truncate_buf(struct buf *, off_t);
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int stream_truncate_rel(struct stream *, off_t);
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int stream_rewind(struct stream *);
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int stream_eof(struct stream *);
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int stream_close(struct stream *);
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int stream_filter_start(struct stream *, stream_filter_t, void *);
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void stream_filter_stop(struct stream *);
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struct buf *buf_new(size_t);
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void buf_free(struct buf *);
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#endif /* !_STREAM_H_ */
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