Performs final scan for a leaf. More...

#include <parallel_scan.h>

Inheritance diagram for tbb::internal::final_sum< Range, Body >:

Collaboration diagram for tbb::internal::final_sum< Range, Body >:

Public Member Functions
	final_sum (Body &body_)

	~final_sum ()

void	finish_construction (const Range &range_, Body *stuff_last_)

Public Member Functions inherited from tbb::task
virtual	~task ()
	Destructor. More...

internal::allocate_continuation_proxy &	allocate_continuation ()
	Returns proxy for overloaded new that allocates a continuation task of *this. More...

internal::allocate_child_proxy &	allocate_child ()
	Returns proxy for overloaded new that allocates a child task of *this. More...

void	recycle_as_continuation ()
	Change this to be a continuation of its former self. More...

void	recycle_as_safe_continuation ()
	Recommended to use, safe variant of recycle_as_continuation. More...

void	recycle_as_child_of (task &new_parent)
	Change this to be a child of new_parent. More...

void	recycle_to_reexecute ()
	Schedule this for reexecution after current execute() returns. More...

void	set_ref_count (int count)
	Set reference count. More...

void	increment_ref_count ()
	Atomically increment reference count. More...

int	add_ref_count (int count)
	Atomically adds to reference count and returns its new value. More...

int	decrement_ref_count ()
	Atomically decrement reference count and returns its new value. More...

void	spawn_and_wait_for_all (task &child)
	Similar to spawn followed by wait_for_all, but more efficient. More...

void __TBB_EXPORTED_METHOD	spawn_and_wait_for_all (task_list &list)
	Similar to spawn followed by wait_for_all, but more efficient. More...

void	wait_for_all ()
	Wait for reference count to become one, and set reference count to zero. More...

task *	parent () const
	task on whose behalf this task is working, or NULL if this is a root. More...

void	set_parent (task *p)
	sets parent task pointer to specified value More...

task_group_context *	context ()
	This method is deprecated and will be removed in the future. More...

task_group_context *	group ()
	Pointer to the task group descriptor. More...

bool	is_stolen_task () const
	True if task was stolen from the task pool of another thread. More...

bool	is_enqueued_task () const
	True if the task was enqueued. More...

state_type	state () const
	Current execution state. More...

int	ref_count () const
	The internal reference count. More...

bool __TBB_EXPORTED_METHOD	is_owned_by_current_thread () const
	Obsolete, and only retained for the sake of backward compatibility. Always returns true. More...

void	set_affinity (affinity_id id)
	Set affinity for this task. More...

affinity_id	affinity () const
	Current affinity of this task. More...

virtual void __TBB_EXPORTED_METHOD	note_affinity (affinity_id id)
	Invoked by scheduler to notify task that it ran on unexpected thread. More...

void __TBB_EXPORTED_METHOD	change_group (task_group_context &ctx)
	Moves this task from its current group into another one. More...

bool	cancel_group_execution ()
	Initiates cancellation of all tasks in this cancellation group and its subordinate groups. More...

bool	is_cancelled () const
	Returns true if the context has received cancellation request. More...

__TBB_DEPRECATED void	set_group_priority (priority_t p)
	Changes priority of the task group this task belongs to. More...

__TBB_DEPRECATED priority_t	group_priority () const
	Retrieves current priority of the task group this task belongs to. More...

Public Attributes
Body	my_body

Private Member Functions
task *	execute () __TBB_override
	Should be overridden by derived classes. More...

Private Attributes
aligned_space< Range >	my_range

Body *	my_stuff_last
	Where to put result of last subrange, or NULL if not last subrange. More...

Additional Inherited Members
Public Types inherited from tbb::task
enum	state_type { executing, reexecute, ready, allocated, freed, recycle }
	Enumeration of task states that the scheduler considers. More...

typedef internal::affinity_id	affinity_id
	An id as used for specifying affinity. More...

Static Public Member Functions inherited from tbb::task
static internal::allocate_root_proxy	allocate_root ()
	Returns proxy for overloaded new that allocates a root task. More...

static internal::allocate_root_with_context_proxy	allocate_root (task_group_context &ctx)
	Returns proxy for overloaded new that allocates a root task associated with user supplied context. More...

static void	spawn_root_and_wait (task &root)
	Spawn task allocated by allocate_root, wait for it to complete, and deallocate it. More...

static void	spawn_root_and_wait (task_list &root_list)
	Spawn root tasks on list and wait for all of them to finish. More...

static void	enqueue (task &t)
	Enqueue task for starvation-resistant execution. More...

static void	enqueue (task &t, priority_t p)
	Enqueue task for starvation-resistant execution on the specified priority level. More...

static void	enqueue (task &t, task_arena &arena, priority_t p=priority_t(0))
	Enqueue task in task_arena. More...

static task &__TBB_EXPORTED_FUNC	self ()
	The innermost task being executed or destroyed by the current thread at the moment. More...

Protected Member Functions inherited from tbb::task
	task ()
	Default constructor. More...

Detailed Description

template<typename Range, typename Body>
class tbb::internal::final_sum< Range, Body >

Performs final scan for a leaf.

Definition at line 50 of file parallel_scan.h.

Constructor & Destructor Documentation

◆ final_sum()

template<typename Range , typename Body >

tbb::internal::final_sum< Range, Body >::final_sum ( Body & body_ )

inline

Definition at line 58 of file parallel_scan.h.

                                  :
             my_body(body_,split())
         {
             poison_pointer(my_stuff_last);
         }

References tbb::internal::final_sum< Range, Body >::my_stuff_last, and tbb::internal::poison_pointer().

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◆ ~final_sum()

template<typename Range , typename Body >

tbb::internal::final_sum< Range, Body >::~final_sum ( )

inline

Definition at line 63 of file parallel_scan.h.

                      {
             my_range.begin()->~Range();
         }

References tbb::internal::final_sum< Range, Body >::my_range.

Member Function Documentation

◆ execute()

template<typename Range , typename Body >

task* tbb::internal::final_sum< Range, Body >::execute ( )

inlineprivatevirtual

Should be overridden by derived classes.

Implements tbb::task.

Definition at line 71 of file parallel_scan.h.

                                        {
             my_body( *my_range.begin(), final_scan_tag() );
             if( my_stuff_last )
                 my_stuff_last->assign(my_body);
             return NULL;
         }

References tbb::internal::final_sum< Range, Body >::my_body, tbb::internal::final_sum< Range, Body >::my_range, and tbb::internal::final_sum< Range, Body >::my_stuff_last.

◆ finish_construction()

template<typename Range , typename Body >

void tbb::internal::final_sum< Range, Body >::finish_construction	(	const Range &	range_,
		Body *	stuff_last_
	)

inline

Definition at line 66 of file parallel_scan.h.

                                                                            {
             new( my_range.begin() ) Range(range_);
             my_stuff_last = stuff_last_;
         }

References tbb::internal::final_sum< Range, Body >::my_range, and tbb::internal::final_sum< Range, Body >::my_stuff_last.

Referenced by tbb::internal::sum_node< Range, Body >::create_child(), and tbb::internal::start_scan< Range, Body, Partitioner >::run().

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Member Data Documentation

◆ my_body

template<typename Range , typename Body >

Body tbb::internal::final_sum< Range, Body >::my_body

Definition at line 52 of file parallel_scan.h.

Referenced by tbb::internal::final_sum< Range, Body >::execute(), tbb::internal::sum_node< Range, Body >::execute(), tbb::internal::finish_scan< Range, Body >::execute(), and tbb::internal::start_scan< Range, Body, Partitioner >::run().

◆ my_range

template<typename Range , typename Body >

aligned_space<Range> tbb::internal::final_sum< Range, Body >::my_range

private

Definition at line 54 of file parallel_scan.h.

Referenced by tbb::internal::final_sum< Range, Body >::execute(), tbb::internal::final_sum< Range, Body >::finish_construction(), and tbb::internal::final_sum< Range, Body >::~final_sum().

◆ my_stuff_last

template<typename Range , typename Body >

Body* tbb::internal::final_sum< Range, Body >::my_stuff_last

private

Where to put result of last subrange, or NULL if not last subrange.

Definition at line 56 of file parallel_scan.h.

Referenced by tbb::internal::final_sum< Range, Body >::execute(), tbb::internal::final_sum< Range, Body >::final_sum(), and tbb::internal::final_sum< Range, Body >::finish_construction().

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

parallel_scan.h

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

template<typename Range, typename Body> class tbb::internal::final_sum< Range, Body >

Constructor & Destructor Documentation

◆ final_sum()

◆ ~final_sum()

Member Function Documentation

◆ execute()

◆ finish_construction()

Member Data Documentation

◆ my_body

◆ my_range

◆ my_stuff_last

template<typename Range, typename Body>
class tbb::internal::final_sum< Range, Body >