NullIO is an IO that uses a thread and a timer to call its graph's nextBuffer(); it doesn't do anything with the resulting buffer, but assumes that other objects (observers of the graph) will handle some actual IO. More...

#include <NullIO.h>

Inheritance diagram for csl::NullIO:

List of all members.

Public Member Functions
	NullIO ()
	Constructor.
	NullIO (unsigned s_rate, unsigned b_size, int in_device=0, int out_device=0, unsigned in_chans=0, unsigned out_chans=2)
virtual	~NullIO ()
virtual void	start () throw (CException)
	start my timer thread
virtual void	stop () throw (CException)
	stop the timer thread
virtual Buffer &	getInput () throw (CException)
	Get the current input from the sound card.
virtual Buffer &	getInput (unsigned numFrames, unsigned numChannels) throw (CException)
virtual void	open () throw (CException)
virtual void	close () throw (CException)
	open/close start/stop methods
virtual void	test () throw (CException)
void	setRoot (UnitGenerator &root)
	test the IO's graph
void	clearRoot ()
	set/clear my graph root generator
void	pullInput (Buffer &outBuffer, SampleBuffer out=0) throw (CException)
	get a buffer from the CSL graph
unsigned	getAndIncrementSequence ()
	increment and answer my seq #
void	attachObserver (Observer *)
	(possibly notify obersvers on my death)
void	detachObserver (Observer *)
void	changed (void *argument)
	this is what I send to myself to notify my observers; It's not overridden in general. It results in the observers receiving update() calls < override evaluate to filter updates to the observer map
virtual int	evaluate (void *argument)
int	createThread (VoidFcnPtr func, void args)

Static Public Member Functions
static CThread *	MakeThread ()
	factory method

Public Attributes
UnitGenerator *	mGraph
	the root of my client DSP graph, often a mixer or panner
Buffer	mInputBuffer
	the most recent input buffer (if it's turned on)
Buffer	mOutputBuffer
	the output buffer I use (passed to nextBuffer calls)
SampleBuffer	mInputPointer
	the buffer for holding the sound card input (if open)
unsigned *	mChannelMap
	the output channel remapping array
unsigned	mNumFramesPlayed
	counter of frames I've played
unsigned	mSequence
	sequence counter
unsigned	mLoggingPeriod
	logging period in seconds
unsigned	mNumInChannels
	inputs
unsigned	mNumOutChannels
	outputs
unsigned	mNumRealInChannels
	physical inputs
unsigned	mNumRealOutChannels
	physical outputs
IO_Status	mStatus
	status flag
bool	mInterleaved
	flag if IO is interleaved
pthread_attr_t	mAttributes

Protected Member Functions
virtual void	initialize (unsigned sr, unsigned bs, int is, int os, unsigned ic, unsigned oc)
	initialize overridden in subclasses

Static Protected Member Functions
static void *	FeederFunction (void *arg)
	shared init function

Protected Attributes
bool	mRunning
juce::Thread *	mThread
	whether or not I'm running
Synch *	mSynch
	the sync I wait on

Detailed Description

NullIO is an IO that uses a thread and a timer to call its graph's nextBuffer(); it doesn't do anything with the resulting buffer, but assumes that other objects (observers of the graph) will handle some actual IO.

Definition at line 23 of file NullIO.h.

Constructor & Destructor Documentation

NullIO::NullIO ( )

Constructor.

Definition at line 12 of file NullIO.cpp.

References csl::Synch::MakeSynch(), csl::CThread::MakeThread(), mSynch, and mThread.

NullIO::NullIO	(	unsigned	s_rate,
		unsigned	b_size,
		int	in_device = `0`,
		int	out_device = `0`,
		unsigned	in_chans = `0`,
		unsigned	out_chans = `2`
	)

Definition at line 17 of file NullIO.cpp.

NullIO::~NullIO ( )

virtual

Definition at line 24 of file NullIO.cpp.

Member Function Documentation

void NullIO::start ( void ) throw (CException)

virtual

start my timer thread

< start my timer thread

whether or not I'm running

Reimplemented from csl::IO.

Reimplemented in csl::StdIO.

Definition at line 41 of file NullIO.cpp.

References FeederFunction(), mRunning, and mThread.

void NullIO::stop ( void ) throw (CException)

virtual

stop the timer thread

< stop the timer thread

Reimplemented from csl::IO.

Reimplemented in csl::StdIO.

Definition at line 46 of file NullIO.cpp.

References csl::Synch::condSignal(), mRunning, and mSynch.

virtual Buffer& csl::NullIO::getInput ( ) throw (CException)

inlinevirtual

Get the current input from the sound card.

Reimplemented from csl::IO.

Definition at line 33 of file NullIO.h.

References csl::IO::mInputBuffer.

virtual Buffer& csl::NullIO::getInput	(	unsigned	numFrames,
		unsigned	numChannels
	)		throw (CException)

inlinevirtual

Reimplemented from csl::IO.

Definition at line 34 of file NullIO.h.

void * NullIO::FeederFunction ( void * arg )

staticprotected

shared init function

Reimplemented in csl::StdIO.

Definition at line 28 of file NullIO.cpp.

References csl::Synch::condWait(), csl::Synch::lock(), csl::IO::mOutputBuffer, mRunning, mSynch, csl::IO::pullInput(), and csl::Synch::unlock().

Referenced by start().

virtual void csl::IO::open ( ) throw (CException)

inlinevirtualinherited

Reimplemented in csl::iPhoneIO, csl::RemoteIO, csl::CAIO, csl::AUIO, csl::JackIO, csl::PAIO, csl::VSTIO, csl::FileIO, csl::AUIO, and csl::JUCEIO.

Definition at line 723 of file CSL_Core.h.

References csl::kIOOpen.

Referenced by main().

virtual void csl::IO::close ( ) throw (CException)

inlinevirtualinherited

open/close start/stop methods

Reimplemented in csl::iPhoneIO, csl::RemoteIO, csl::CAIO, csl::FileIO, csl::PAIO, csl::AUIO, csl::JackIO, csl::VSTIO, csl::AUIO, and csl::JUCEIO.

Definition at line 724 of file CSL_Core.h.

References csl::kIOClosed.

Referenced by csl::CSLService::stop().

virtual void csl::IO::test ( ) throw (CException)

inlinevirtualinherited

Reimplemented in csl::FileIO, and csl::PAIO.

Definition at line 727 of file CSL_Core.h.

void IO::setRoot ( UnitGenerator & root )

inherited

test the IO's graph

Definition at line 1249 of file CSL_Core.cpp.

References csl::UnitGenerator::addOutput(), and csl::IO::mGraph.

Referenced by main(), and csl::VSTIO::VSTIO().

void IO::clearRoot ( )

inherited

set/clear my graph root generator

Definition at line 1254 of file CSL_Core.cpp.

References csl::IO::mGraph, and csl::UnitGenerator::removeOutput().

void IO::pullInput	(	Buffer &	outBuffer,
		SampleBuffer	out = `0`
	)		throw (CException)

inherited

get a buffer from the CSL graph

Definition at line 1269 of file CSL_Core.cpp.

References GET_TIME, csl::kLogError, csl::logMsg(), and csl::CException::mMessage.

Referenced by csl::JUCEIO::audioDeviceIOCallback(), FeederFunction(), csl::StdIO::FeederFunction(), JackCallback(), pa_callback(), csl::VSTIO::processReplacing(), and RenderCallback().

unsigned IO::getAndIncrementSequence ( )

inherited

increment and answer my seq #

Definition at line 1262 of file CSL_Core.cpp.

References csl::IO::mSequence.

virtual void csl::IO::initialize	(	unsigned	sr,
		unsigned	bs,
		int	is,
		int	os,
		unsigned	ic,
		unsigned	oc
	)

inlineprotectedvirtualinherited

initialize overridden in subclasses

Reimplemented in csl::PAIO.

Definition at line 765 of file CSL_Core.h.

void Model::attachObserver ( Observer * o )

inherited

(possibly notify obersvers on my death)

register/remove observers

Definition at line 491 of file CGestalt.cpp.

References csl::logMsg(), csl::Observer::mKey, and csl::Observer::mPeriod.

Referenced by csl::SpatialPanner::setSpeakerLayout().

void Model::detachObserver ( Observer * o )

inherited

Definition at line 507 of file CGestalt.cpp.

References csl::logMsg().

Referenced by csl::SpatialPanner::setSpeakerLayout(), and csl::SpatialPanner::~SpatialPanner().

void Model::changed ( void * argument )

inherited

this is what I send to myself to notify my observers; It's not overridden in general. It results in the observers receiving update() calls < override evaluate to filter updates to the observer map

Definition at line 529 of file CGestalt.cpp.

References csl::logMsg().

Referenced by csl::SpeakerLayout::addSpeaker(), csl::MIDIIn::handleIncomingMidiMessage(), and csl::SpeakerLayout::setDefaultSpeakerLayout().

virtual int csl::Model::evaluate ( void * argument )

inlinevirtualinherited

Reimplemented in csl::MIDIIn.

Definition at line 259 of file CGestalt.h.