tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool Struct Reference

Base class for thread pools which can be customised to determine how cooperative threads should behave. More...

Public Member Functions
	ThreadPool (LockFreeMultiThreadedNodePlayer &p)
	Constructs a ThreadPool for a given LockFreeMultiThreadedNodePlayer. More...
virtual	~ThreadPool ()=default
	Destructor. More...
virtual void	createThreads (size_t numThreads)=0
	Subclasses should implement this to create the given number of threads. More...
virtual void	clearThreads ()=0
	Subclasses should implement this to clear all the threads. More...
virtual void	signalOne ()=0
	Called by the player when a Node becomes available to process. More...
virtual void	signal (int numToSignal)=0
	Called by the player when more than one Node becomes available to process. More...
virtual void	signalAll ()=0
	Called by the player when more than one Node becomes available to process. More...
virtual void	waitForFinalNode ()=0
	Called by the player when the audio thread has no free Nodes to process. More...
void	signalShouldExit ()
	Signals the pool that all the threads should exit. More...
void	resetExitSignal ()
	Signals the pool that all the threads should continue to run and not exit. More...
bool	shouldExit () const
	Returns true if all the threads should exit. More...
bool	shouldWait ()
	Returns true if there are no free Nodes to be processed and the calling thread should wait until there are Nodes ready. More...
bool	isFinalNodeReady ()
	Returns true if all the Nodes have been processed. More...
bool	process ()
	Process the next chain of Nodes. More...
void	setCurrentNode (LockFreeMultiThreadedNodePlayer::PreparedNode *nodeInUse)
	Sets the current PreparedNode in use. More...

Detailed Description

Base class for thread pools which can be customised to determine how cooperative threads should behave.

Constructor & Destructor Documentation

ThreadPool()

tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::ThreadPool

(

LockFreeMultiThreadedNodePlayer &

p

)

Constructs a ThreadPool for a given LockFreeMultiThreadedNodePlayer.

~ThreadPool()

virtual tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::~ThreadPool ( )

virtualdefault

Destructor.

Member Function Documentation

createThreads()

virtual void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::createThreads ( size_t  numThreads )

pure virtual

Subclasses should implement this to create the given number of threads.

clearThreads()

virtual void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::clearThreads ( )

pure virtual

Subclasses should implement this to clear all the threads.

signalOne()

virtual void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::signalOne ( )

pure virtual

Called by the player when a Node becomes available to process.

Subclasses should use this to try and get a thread to call process as soon as possible.

signal()

virtual void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::signal ( int  numToSignal )

pure virtual

Called by the player when more than one Node becomes available to process.

Subclasses should use this to try and get a thread to call process as soon as possible.

signalAll()

virtual void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::signalAll ( )

pure virtual

Called by the player when more than one Node becomes available to process.

Subclasses should use this to try and get a thread to call process as soon as possible.

Referenced by signalShouldExit().

waitForFinalNode()

virtual void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::waitForFinalNode ( )

pure virtual

Called by the player when the audio thread has no free Nodes to process.

Subclasses should can use this to either spin, pause or wait until a Node does become free or isFinalNodeReady returns true.

signalShouldExit()

void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::signalShouldExit

(

)

Signals the pool that all the threads should exit.

References signalAll().

resetExitSignal()

void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::resetExitSignal

(

)

Signals the pool that all the threads should continue to run and not exit.

shouldExit()

bool tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::shouldExit

(

)

const

Returns true if all the threads should exit.

Referenced by setCurrentNode(), and shouldWait().

shouldWait()

bool tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::shouldWait

(

)

Returns true if there are no free Nodes to be processed and the calling thread should wait until there are Nodes ready.

References shouldExit().

isFinalNodeReady()

bool tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::isFinalNodeReady

(

)

Returns true if all the Nodes have been processed.

process()

bool tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::process

(

)

Process the next chain of Nodes.

Returns true if at least one Node was processed, false if no Nodes were processed. You can use this to determine how long to pause/wait for before processing again.

setCurrentNode()

void tracktion::graph::LockFreeMultiThreadedNodePlayer::ThreadPool::setCurrentNode

(

LockFreeMultiThreadedNodePlayer::PreparedNode *

nodeInUse

)

Sets the current PreparedNode in use.

This should live as long as the threads are running once set.

References shouldExit().

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The documentation for this struct was generated from the following file:

• tracktion_LockFreeMultiThreadedNodePlayer.h