1 /*****************************************************************************
2  *
3  * Copyright (c) 2008-2010, CoreCodec, Inc.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are met:
8  *     * Redistributions of source code must retain the above copyright
9  *       notice, this list of conditions and the following disclaimer.
10  *     * Redistributions in binary form must reproduce the above copyright
11  *       notice, this list of conditions and the following disclaimer in the
12  *       documentation and/or other materials provided with the distribution.
13  *     * Neither the name of CoreCodec, Inc. nor the
14  *       names of its contributors may be used to endorse or promote products
15  *       derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY CoreCodec, Inc. ``AS IS'' AND ANY
18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED. IN NO EVENT SHALL CoreCodec, Inc. BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  ****************************************************************************/
29 
30 #ifndef __BUFFER_H
31 #define __BUFFER_H
32 
33 typedef struct buffer
34 {
35 	uint8_t* Begin;
36 	uint8_t* Write;
37 	uint8_t* Read;
38 	uint8_t* End;
39 
40 } buffer;
41 
42 NODE_DLL void BufferClear(buffer*);
43 NODE_DLL void BufferDrop(buffer*);
44 NODE_DLL bool_t BufferAlloc(buffer* p, size_t Size, size_t Align);
45 NODE_DLL uint8_t* BufferWrite(buffer*, const void* Ptr, size_t Length, size_t Align);
46 NODE_DLL const uint8_t* BufferRead(buffer*, size_t Length);
47 NODE_DLL void BufferPack(buffer*, size_t Readed);
48 
49 #endif
50