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private/queue.h
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/*
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* SpanDSP - a series of DSP components for telephony
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*
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* private/queue.h - simple in process message queuing
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2004 Steve Underwood
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(_SPANDSP_PRIVATE_QUEUE_H_)
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#define _SPANDSP_PRIVATE_QUEUE_H_
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/*!
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Queue descriptor. This defines the working state for a single instance of
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a byte stream or message oriented queue.
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*/
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struct
queue_state_s
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{
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/*! \brief Flags indicating the mode of the queue. */
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int
flags
;
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/*! \brief The length of the data buffer. */
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int
len
;
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/*! \brief The buffer input pointer. */
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volatile
int
iptr
;
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/*! \brief The buffer output pointer. */
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volatile
int
optr
;
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#if defined(SPANDSP_FULLY_DEFINE_QUEUE_STATE_T)
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/*! \brief The data buffer, sized at the time the structure is created. */
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uint8_t data[];
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#endif
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};
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#endif
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/*- End of file ------------------------------------------------------------*/
src
spandsp
private
queue.h
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