1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/mtransport/third_party/nrappkit/src/util/p_buf.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,72 @@
1.4 +/**
1.5 + p_buf.h
1.6 +
1.7 +
1.8 + Copyright (C) 2003, Network Resonance, Inc.
1.9 + Copyright (C) 2006, Network Resonance, Inc.
1.10 + All Rights Reserved
1.11 +
1.12 + Redistribution and use in source and binary forms, with or without
1.13 + modification, are permitted provided that the following conditions
1.14 + are met:
1.15 +
1.16 + 1. Redistributions of source code must retain the above copyright
1.17 + notice, this list of conditions and the following disclaimer.
1.18 + 2. Redistributions in binary form must reproduce the above copyright
1.19 + notice, this list of conditions and the following disclaimer in the
1.20 + documentation and/or other materials provided with the distribution.
1.21 + 3. Neither the name of Network Resonance, Inc. nor the name of any
1.22 + contributors to this software may be used to endorse or promote
1.23 + products derived from this software without specific prior written
1.24 + permission.
1.25 +
1.26 + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
1.27 + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.28 + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.29 + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
1.30 + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.31 + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.32 + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.33 + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.34 + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.35 + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.36 + POSSIBILITY OF SUCH DAMAGE.
1.37 +
1.38 +
1.39 + ekr@rtfm.com Tue Nov 25 15:58:37 2003
1.40 + */
1.41 +
1.42 +
1.43 +#ifndef _p_buf_h
1.44 +#define _p_buf_h
1.45 +
1.46 +typedef struct nr_p_buf_ {
1.47 + UCHAR *data; /*The pointer to the buffer where the data lives */
1.48 + UINT4 size; /*The size of the buffer */
1.49 + UINT4 r_offset; /*The offset into the buffer where the data starts
1.50 + when reading */
1.51 + UINT4 length; /*The length of the data portion */
1.52 +
1.53 + STAILQ_ENTRY(nr_p_buf_) entry;
1.54 +} nr_p_buf;
1.55 +
1.56 +typedef STAILQ_HEAD(nr_p_buf_head_,nr_p_buf_) nr_p_buf_head;
1.57 +
1.58 +
1.59 +typedef struct nr_p_buf_ctx_ {
1.60 + int buf_size;
1.61 +
1.62 + nr_p_buf_head free_list;
1.63 +} nr_p_buf_ctx;
1.64 +
1.65 +int nr_p_buf_ctx_create(int size,nr_p_buf_ctx **ctxp);
1.66 +int nr_p_buf_ctx_destroy(nr_p_buf_ctx **ctxp);
1.67 +int nr_p_buf_alloc(nr_p_buf_ctx *ctx,nr_p_buf **bufp);
1.68 +int nr_p_buf_free(nr_p_buf_ctx *ctx,nr_p_buf *buf);
1.69 +int nr_p_buf_free_chain(nr_p_buf_ctx *ctx,nr_p_buf_head *chain);
1.70 +int nr_p_buf_write_to_chain(nr_p_buf_ctx *ctx,
1.71 + nr_p_buf_head *chain,
1.72 + UCHAR *data,UINT4 len);
1.73 +
1.74 +#endif
1.75 +
