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RingBuffer.h
Go to the documentation of this file.
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//*****************************************************************
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/*
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JackTrip: A System for High-Quality Audio Network Performance
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over the Internet
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Copyright (c) 2008 Juan-Pablo Caceres, Chris Chafe.
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SoundWIRE group at CCRMA, Stanford University.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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*/
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//*****************************************************************
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#ifndef __RINGBUFFER_H__
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#define __RINGBUFFER_H__
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#include <QWaitCondition>
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#include <QMutex>
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#include <QMutexLocker>
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#include "
jacktrip_types.h
"
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class
RingBuffer
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{
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public
:
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RingBuffer
(
int
SlotSize,
int
NumSlots);
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virtual
~RingBuffer
();
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void
insertSlotBlocking
(
const
int8_t
* ptrToSlot);
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void
readSlotBlocking
(
int8_t
* ptrToReadSlot);
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void
insertSlotNonBlocking
(
const
int8_t
* ptrToSlot);
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void
readSlotNonBlocking
(
int8_t
* ptrToReadSlot);
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protected
:
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virtual
void
setUnderrunReadSlot
(
int8_t
* ptrToReadSlot);
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virtual
void
setMemoryInReadSlotWithLastReadSlot
(
int8_t
* ptrToReadSlot);
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private
:
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void
underrunReset
();
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void
overflowReset
();
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void
debugDump
()
const
;
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const
int
mSlotSize
;
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const
int
mNumSlots
;
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const
int
mTotalSize
;
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int
mReadPosition
;
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int
mWritePosition
;
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int
mFullSlots
;
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int8_t
*
mRingBuffer
;
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int8_t
*
mLastReadSlot
;
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// Thread Synchronization Private Members
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QMutex
mMutex
;
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QWaitCondition
mBufferIsNotFull
;
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QWaitCondition
mBufferIsNotEmpty
;
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};
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#endif