Mercurial > hg > audiostuff
comparison spandsp-0.0.6pre17/src/spandsp/private/queue.h @ 4:26cd8f1ef0b1
import spandsp-0.0.6pre17
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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date | Fri, 25 Jun 2010 15:50:58 +0200 |
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3:c6c5a16ce2f2 | 4:26cd8f1ef0b1 |
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1 /* | |
2 * SpanDSP - a series of DSP components for telephony | |
3 * | |
4 * private/queue.h - simple in process message queuing | |
5 * | |
6 * Written by Steve Underwood <steveu@coppice.org> | |
7 * | |
8 * Copyright (C) 2004 Steve Underwood | |
9 * | |
10 * All rights reserved. | |
11 * | |
12 * This program is free software; you can redistribute it and/or modify | |
13 * it under the terms of the GNU Lesser General Public License version 2.1, | |
14 * as published by the Free Software Foundation. | |
15 * | |
16 * This program is distributed in the hope that it will be useful, | |
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 * GNU Lesser General Public License for more details. | |
20 * | |
21 * You should have received a copy of the GNU Lesser General Public | |
22 * License along with this program; if not, write to the Free Software | |
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 * | |
25 * $Id: queue.h,v 1.2 2009/01/31 08:48:11 steveu Exp $ | |
26 */ | |
27 | |
28 #if !defined(_SPANDSP_PRIVATE_QUEUE_H_) | |
29 #define _SPANDSP_PRIVATE_QUEUE_H_ | |
30 | |
31 /*! | |
32 Queue descriptor. This defines the working state for a single instance of | |
33 a byte stream or message oriented queue. | |
34 */ | |
35 struct queue_state_s | |
36 { | |
37 /*! \brief Flags indicating the mode of the queue. */ | |
38 int flags; | |
39 /*! \brief The length of the data buffer. */ | |
40 int len; | |
41 /*! \brief The buffer input pointer. */ | |
42 volatile int iptr; | |
43 /*! \brief The buffer output pointer. */ | |
44 volatile int optr; | |
45 #if defined(SPANDSP_FULLY_DEFINE_QUEUE_STATE_T) | |
46 /*! \brief The data buffer, sized at the time the structure is created. */ | |
47 uint8_t data[]; | |
48 #endif | |
49 }; | |
50 | |
51 #endif | |
52 /*- End of file ------------------------------------------------------------*/ |