74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/*
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* Copyright (C) 2003-2011 The Music Player Daemon Project
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* http://www.musicpd.org
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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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*
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* - 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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*
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* - 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
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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*
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* Helper functions for our FIFO buffer library (fifo_buffer.h) that
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* allows growing the buffer on demand.
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*
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* This library is not thread safe.
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*/
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#ifndef MPD_GROWING_FIFO_H
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#define MPD_GROWING_FIFO_H
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#include <stddef.h>
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struct fifo_buffer;
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/**
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* Allocate a new #fifo_buffer with the default size.
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*/
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struct fifo_buffer *
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growing_fifo_new(void);
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/**
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* Prepares writing to the buffer, see fifo_buffer_write() for
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* details. The difference is that this function will automatically
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* grow the buffer if it is too small.
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*
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* The caller is responsible for limiting the capacity of the buffer.
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*
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* @param length the number of bytes that will be written
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* @return a pointer to the end of the buffer (will not be NULL)
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*/
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void *
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growing_fifo_write(struct fifo_buffer **buffer_p, size_t length);
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/**
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* A helper function that combines growing_fifo_write(), memcpy(),
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* fifo_buffer_append().
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*/
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void
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growing_fifo_append(struct fifo_buffer **buffer_p,
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const void *data, size_t length);
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#endif
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