#include <thread.h>

Inheritance diagram for ThreadRefTemplate< INTERFACE >:

Detailed Description

template<typename INTERFACE>
class maxon::ThreadRefTemplate< INTERFACE >

Reference to a thread (ThreadInterface).

Template Parameters

INTERFACE Interface class for the ThreadRef (inherits from ThreadInterface).

Public Member Functions
	MAXON_DEFAULT_REFERENCE_CONSTRUCTORS (ThreadRefTemplate, Ptr)

MAXON_IMPLICIT	ThreadRefTemplate (const Ptr &src)

MAXON_IMPLICIT	ThreadRefTemplate (Ptr &&src)

Bool	IsRunning () const

Bool	Wait (TimeValue timeout=TIMEVALUE_INFINITE, WAITMODE mode=WAITMODE::DEFAULT) const

Result< void >	GetResult (TimeValue timeout=TIMEVALUE_INFINITE, WAITMODE mode=WAITMODE::DEFAULT) const

void	Cancel ()

Bool	IsCancelled () const

void	CancelAndWait (WAITMODE mode=WAITMODE::DEFAULT)

Result< void >	Start (THREADPRIORITY priority=THREADPRIORITY::NORMAL)

ObservableFinishedBase< INTERFACE >	ObservableFinished ()

String	ToString (const FormatStatement *formatStatement=nullptr) const

Bool	operator== (const ThreadRefTemplate &other) const

Bool	operator!= (const ThreadRefTemplate &other) const

Public Member Functions inherited from BaseRef< T, HANDLER >
T *	GetPointer ()

ConstReferencedType *	GetPointer () const

T *	operator-> ()

ConstReferencedType *	operator-> () const

std::conditional< std::is_void< T >::value, DeleteReturnType01, T >::type &	operator* ()

std::conditional< std::is_void< ConstReferencedType >::value, DeleteReturnType01, T >::type &	operator* () const

	operator T* ()

	operator ConstReferencedType * () const

	operator Bool () const

	operator Bool ()

const std::conditional< std::is_void< T >::value, DeleteReturnType01, T >::type &	operator[] (Int) const =delete

ResultRef< typename std::remove_const< T >::type >	MakeWritable (Bool resetOnError=true)

std::conditional< std::is_void< T >::value, DeleteReturnType01, T >::type &	GetOrNull () const

	BaseRef ()

MAXON_IMPLICIT	BaseRef (std::nullptr_t)=delete

MAXON_IMPLICIT	BaseRef (T *o)

template<typename PTR >
	BaseRef (ForwardResultPtr< PTR > o)

	BaseRef (ResultPtr< T > o, Int)

	BaseRef (const BaseRef &src)

template<typename REF , typename = typename std::enable_if<!STD_IS_REPLACEMENT(base_of, BaseRef, REF) && maxon::HasErasedBase<typename REF::ReferencedType, ReferencedType>::value>::type>
MAXON_IMPLICIT	BaseRef (const REF &src)

template<typename REF , typename = typename std::enable_if<!STD_IS_REPLACEMENT(base_of, BaseRef, REF) && maxon::HasErasedBase<typename REF::ReferencedType, ReferencedType>::value>::type>
MAXON_IMPLICIT	BaseRef (REF &src)

BaseRef &	operator= (T *src)

BaseRef &	operator= (std::nullptr_t src)

BaseRef &	operator= (const BaseRef &src)

template<typename REF , typename = typename std::enable_if<!STD_IS_REPLACEMENT(base_of, BaseRef, REF) && maxon::HasErasedBase<typename REF::ReferencedType, ReferencedType>::value>::type>
BaseRef &	operator= (const REF &src)

template<typename REF , typename = typename std::enable_if<!STD_IS_REPLACEMENT(base_of, BaseRef, REF) && maxon::HasErasedBase<typename REF::ReferencedType, ReferencedType>::value>::type>
BaseRef &	operator= (REF &src)

	BaseRef (BaseRef &&src)

template<typename REF , typename = typename std::enable_if<!STD_IS_REPLACEMENT(const, REF) && !STD_IS_REPLACEMENT(base_of, BaseRef, REF) && maxon::HasErasedBase<typename REF::ReferencedType, ReferencedType>::value>::type>
MAXON_IMPLICIT	BaseRef (REF &&src)

BaseRef &	operator= (BaseRef &&src)

template<typename REF , typename = typename std::enable_if<!STD_IS_REPLACEMENT(const, REF) && !STD_IS_REPLACEMENT(base_of, BaseRef, REF) && maxon::HasErasedBase<typename REF::ReferencedType, ReferencedType>::value>::type>
BaseRef &	operator= (REF &&src)

	~BaseRef ()

Bool	operator== (const BaseRef &b) const

Bool	operator!= (const BaseRef &b) const

Bool	operator< (const BaseRef &b) const

	MAXON_OPERATOR_INEQUALITY (BaseRef)

Bool	operator== (const T *b) const

Bool	operator!= (const T *b) const

Bool	operator== (typename std::remove_const< T >::type *b) const

Bool	operator!= (typename std::remove_const< T >::type *b) const

Bool	operator== (std::nullptr_t) const

Bool	operator!= (std::nullptr_t) const

HashInt	GetHashCode () const

UniqueHash	GetUniqueHashCode () const

T *	Disconnect ()

void	PrivateSetTarget (ResultPtr< T > src)

void	PrivateSetPointer (T *ptr)

Static Public Member Functions
template<THREADCANCELLATION B = THREADCANCELLATION::AUTOMATIC, typename FN , typename... ARGS>
static auto	Create (FN &&src, ARGS &&... args) -> ResultMemT< ThreadResultRef< decltype(src(std::forward< ARGS >(args)...))>>

static StrongRef< const INTERFACE >	GetCurrentThread ()

static Int	GetCurrentThreadCount ()

static Bool	IsMainThread ()

static THREADTYPE	GetCurrentThreadType ()

static THREADTYPE	GetCurrentThreadType (Int &threadIdentifier)

static Result< void >	AssimilateAlienThread ()

static Bool	IsCurrentThreadCancelled (const ThreadInterface *optionalThread=nullptr)

static Bool	IsCurrentThreadCancelled (const ThreadRefTemplate< INTERFACE > &optionalThread)

template<THREADCANCELLATION B = THREADCANCELLATION::AUTOMATIC, typename FN >
static MAXON_WARN_UNUSED auto	Run (FN &&src, THREADPRIORITY priority=THREADPRIORITY::NORMAL) -> ResultMemT< ThreadResultRef< decltype(src())>>

template<THREADCANCELLATION B = THREADCANCELLATION::AUTOMATIC, typename FN , typename... ARGS>
static auto	Run (FN &&src, THREADPRIORITY priority, ARGS &&... args) -> ResultMemT< ThreadResultRef< decltype(src(std::forward< ARGS >(args)...))>>

static MAXON_ATTRIBUTE_FORCE_INLINE const ThreadRefTemplate &	NullValue ()

Static Public Member Functions inherited from BaseRef< T, HANDLER >
static void	PrivateLookupFn ()

static std::false_type	GenericVarianceCheck (const void *)

template<typename... ARGS>
static MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT< BaseRef >	Create (ARGS &&... args)

static const BaseRef &	NullValueRef ()

static std::conditional< Bool(HANDLER::KIND &VALUEKIND::UNIQUE_REFERENCE), BaseRef, const BaseRef & >::type	NullValue ()

Private Types
using	Ptr = StrongRef< INTERFACE >

Private Member Functions
INTERFACE *	GCCWorkaroundRun (THREADPRIORITY priority)

Static Private Member Functions
template<JOBCANCELLATION B, typename FN , typename... ARGS>
static INTERFACE *	CreateThread (FN &&src, ARGS &&... args)

Additional Inherited Members
Public Types inherited from BaseRef< T, HANDLER >
using	ReferencedType = T

using	ConstReferencedType = typename ConstIf< T, Bool(HANDLER::KIND &VALUEKIND::DEEP_CONSTNESS)>::type

using	DirectlyReferencedType = T

using	SelfType = BaseRef< T, HANDLER >

template<typename D >
using	IsGenericBaseOf = std::true_type

using	Handler = HANDLER

using	RefCompareType = RefCompare< MAXON_IS_COW_KIND(HANDLER::KIND), IsInterfaceType< T >::value >

Static Public Attributes inherited from BaseRef< T, HANDLER >
static constexpr Bool	DIRECT_REF

Protected Attributes inherited from BaseRef< T, HANDLER >
union {
T * _object

const void * _impl

};

Member Typedef Documentation

◆ Ptr

using Ptr = StrongRef<INTERFACE>

private

Constructor & Destructor Documentation

◆ ThreadRefTemplate() [1/2]

MAXON_IMPLICIT ThreadRefTemplate ( const Ptr & src )

◆ ThreadRefTemplate() [2/2]

MAXON_IMPLICIT ThreadRefTemplate ( Ptr && src )

Member Function Documentation

◆ MAXON_DEFAULT_REFERENCE_CONSTRUCTORS()

MAXON_DEFAULT_REFERENCE_CONSTRUCTORS	(	ThreadRefTemplate< INTERFACE >	,
		Ptr
	)

◆ Create()

static auto Create	(	FN &&	src,
		ARGS &&...	args
	)		-> ResultMemT<ThreadResultRef<decltype(src(std::forward<ARGS>(args)...))>>

static

Creates a reference to a thread with n arguments.

Parameters

[in]	src	Lambda or object with operator ().
[in]	args	Arguments for the function.

Template Parameters

B	Behaviour for early thread cancellation.
FN	Type of function/lambda, deduced by the compiler.
ARGS	Parameter types.

Returns: OK on success.

◆ IsRunning()

Bool IsRunning ( void ) const

Checks whether this thread is currently running. Will return false for a null reference. THREADSAFE.

Returns: False if the thread wasn't running anymore.

◆ Wait()

Bool Wait	(	TimeValue	timeout = `TIMEVALUE_INFINITE`,
		WAITMODE	mode = `WAITMODE::DEFAULT`
	)		const

Waits until the referenced thread has been executed. As long as a thread hasn't been started it is considered not to have finished yet. Once it has run this will return immediately until you restart the thread.

Wait() might execute other jobs in the current queue until the one you are waiting for has finished or is timed out. Therefore you may never lock a shared resource another job might use as well and then wait. For one this could dead-lock and conceptually this would result in single-threaded performance.

If you call Wait() from within an enqueued job you must have started what you are waiting for. Otherwise Wait() will immediately return false because this would lead to a deadlock. The same applies if a thread tries to wait for itself.

Instead of waiting for a thread to start some action after it has finished you can subscribe to ObservableFinished(). This cannot dead-lock, is more efficient and can even be used to run the observer in a different queue. For example you can run a thread and register an observer for it that will run on the main thread's queue and updates the UI. THREADSAFE.

Parameters

[in]	timeout	Maximum wait interval (or TIMEVALUE_INFINITE for no time-out).
[in]	mode	WAITMODE::DEFAULT by default. WAITMODE::RETURN_ON_CANCEL means that Wait() will return if the caller has been cancelled even if the condition has not been set yet.

Returns: True if successful, false if you try to wait inside an enqueued job or there is no job at all.

◆ GetResult()

Result<void> GetResult	(	TimeValue	timeout = `TIMEVALUE_INFINITE`,
		WAITMODE	mode = `WAITMODE::DEFAULT`
	)		const

Waits until this thread has been executed and returns the result. THREADSAFE.

Parameters

[in]	timeout	Maximum wait interval (or TIMEVALUE_INFINITE for no time-out).
[in]	mode	WAITMODE::DEFAULT by default. WAITMODE::RETURN_ON_CANCEL means that Wait() will return if the caller has been cancelled even if the condition has not been set yet.

Returns: OK on success.

◆ Cancel()

void Cancel ( )

Asks the thread to cancel execution. The call will not wait for the thread to cancel. THREADSAFE.

◆ IsCancelled()

Bool IsCancelled ( ) const

Checks if the thread should stop. A null reference will not be regarded as being cancelled. THREADSAFE.

Returns: True if the thread has been asked to cancel.

◆ CancelAndWait()

void CancelAndWait ( WAITMODE mode = WAITMODE::DEFAULT )

Asks the thread to cancel execution and waits until it has finished. THREADSAFE.

Parameters

[in] mode WAITMODE::DEFAULT by default.

◆ Start()

Result<void> Start ( THREADPRIORITY priority = THREADPRIORITY::NORMAL )

Starts a thread to execute this job's worker method (will add a reference and remove it when the object is no longer needed). If you try to start an already running thread this will fail and return an error.

Parameters

[in] priority THREADPRIORITY::NORMAL or THREADPRIORITY::BELOW for a background thread.

Returns: OK on success. Fails if the thread is already running or no more threads are available.

◆ ObservableFinished()

ObservableFinishedBase<INTERFACE> ObservableFinished ( )

ObservableFinished is an observable that is triggered after this job has been executed. THREADSAFE.

Returns: Custom observable.

◆ GetCurrentThread()

static StrongRef<const INTERFACE> GetCurrentThread ( )

static

Returns a pointer to the currently running thread. If you call this from a job or a thread you have created by using OS APIs a nullptr is returned. THREADSAFE.

Returns: This thread's ThreadInterface* or nullptr (worker, main or other OS thread)

◆ GetCurrentThreadCount()

static Int GetCurrentThreadCount ( )

static

Returns the number of worker threads for the current job context. This might be different from the actual CPU core or thread count. THREADSAFE.

Returns: Number of worker threads, guaranteed to be > 0.

◆ IsMainThread()

static Bool IsMainThread ( )

static

Checks if this thread is the main application thread. THREADSAFE.

Returns: True if this is the main application thread.

◆ GetCurrentThreadType() [1/2]

static THREADTYPE GetCurrentThreadType ( )

static

Returns information about the current thread. THREADSAFE.

Returns: See THREADTYPE.

◆ GetCurrentThreadType() [2/2]

static THREADTYPE GetCurrentThreadType ( Int & threadIdentifier )

static

Returns information about the current thread. THREADSAFE.

Parameters

[out] threadIdentifier For THREADTYPE::WORKER the the index of the worker thread is returned, for THREADTYPE::MAIN 0 is returned if it currently executes jobs. Otherwise this is an opaque identifier for the current thread.

Returns: See THREADTYPE.

◆ AssimilateAlienThread()

static Result<void> AssimilateAlienThread ( )

static

Allocates internal resources for an alien thread (CoreThread, unique thread index and so on). THREADSAFE.

Returns: OK on success.

◆ IsCurrentThreadCancelled() [1/2]

static Bool IsCurrentThreadCancelled ( const ThreadInterface * optionalThread = nullptr )

static

Checks if the currently running thread (or job) should stop. Works for jobs and threads. THREADSAFE.

Parameters

[in] optionalThread Optional thread which should also be checked for cancellation.

Returns: True if the thread has been asked to cancel.

◆ IsCurrentThreadCancelled() [2/2]

static Bool IsCurrentThreadCancelled ( const ThreadRefTemplate< INTERFACE > & optionalThread )

static

Checks if the currently running thread (or job) should stop. Works for jobs and threads. THREADSAFE.

Parameters

[in] optionalThread Thread which should also be checked for cancellation.

Returns: True if the thread has been asked to cancel.

◆ Run() [1/2]

static MAXON_WARN_UNUSED auto Run	(	FN &&	src,
		THREADPRIORITY	priority = `THREADPRIORITY::NORMAL`
	)		-> ResultMemT<ThreadResultRef<decltype(src())>>

static

Runs a lambda or object with operator () and n arguments in a thread. THREADSAFE.

Parameters

[in]	src	Lambda or object with operator ().
[in]	priority	THREADPRIORITY::NORMAL or THREADPRIORITY::BELOW for a background thread.

Template Parameters

B	Behaviour for early thread cancellation.
FN	Type of function/lambda, deduced by the compiler.

Returns: The ThreadInterface encapsulating the closure, might be nullptr if starting the thread failed.

◆ Run() [2/2]

static auto Run	(	FN &&	src,
		THREADPRIORITY	priority,
		ARGS &&...	args
	)		-> ResultMemT<ThreadResultRef<decltype(src(std::forward<ARGS>(args)...))>>

static

Runs a lambda or object with operator () and n arguments in a thread. THREADSAFE.

Parameters

[in]	src	Lambda or object with operator ().
[in]	priority	THREADPRIORITY::NORMAL or THREADPRIORITY::BELOW for a background thread.
[in]	args	Arguments for the function.

Template Parameters

B	Behaviour for early thread cancellation.
FN	Type of function/lambda, deduced by the compiler.
ARGS	Parameter types.

Returns: The ThreadInterface encapsulating the closure, might be nullptr if starting the thread failed.

◆ ToString()

String ToString ( const FormatStatement * formatStatement = nullptr ) const

Returns a readable string of the content.

Parameters

[in] formatStatement Nullptr or additional formatting instruction. Currently no additional formatting instructions are supported.

Returns: The converted result.

◆ operator==()

Bool operator== ( const ThreadRefTemplate< INTERFACE > & other ) const

◆ operator!=()

Bool operator!= ( const ThreadRefTemplate< INTERFACE > & other ) const

◆ NullValue()

static MAXON_ATTRIBUTE_FORCE_INLINE const ThreadRefTemplate& NullValue ( )

static

◆ GCCWorkaroundRun()

INTERFACE* GCCWorkaroundRun ( THREADPRIORITY priority )

private

Workaround for buggy gcc 4.7. It mixes up the member method Run(priority) and the static method Run(fn, priority). THREADSAFE.

Parameters

[in] priority THREADPRIORITY::NORMAL or THREADPRIORITY::BELOW for a background thread.

Returns: The ThreadInterface encapsulating the closure, might be nullptr if memory allocation or thread start failed.

◆ CreateThread()

static INTERFACE* CreateThread	(	FN &&	src,
		ARGS &&...	args
	)

staticprivate

Detailed Description

template<typename INTERFACE> class maxon::ThreadRefTemplate< INTERFACE >

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Additional Inherited Members

Member Typedef Documentation

◆ Ptr

Constructor & Destructor Documentation

◆ ThreadRefTemplate() [1/2]

◆ ThreadRefTemplate() [2/2]

Member Function Documentation

◆ MAXON_DEFAULT_REFERENCE_CONSTRUCTORS()

◆ Create()

◆ IsRunning()

◆ Wait()

◆ GetResult()

◆ Cancel()

◆ IsCancelled()

◆ CancelAndWait()

◆ Start()

◆ ObservableFinished()

◆ GetCurrentThread()

◆ GetCurrentThreadCount()

◆ IsMainThread()

◆ GetCurrentThreadType() [1/2]

◆ GetCurrentThreadType() [2/2]

◆ AssimilateAlienThread()

◆ IsCurrentThreadCancelled() [1/2]

◆ IsCurrentThreadCancelled() [2/2]

◆ Run() [1/2]

◆ Run() [2/2]

◆ ToString()

◆ operator==()

◆ operator!=()

◆ NullValue()

◆ GCCWorkaroundRun()

◆ CreateThread()

template<typename INTERFACE>
class maxon::ThreadRefTemplate< INTERFACE >