tbb::internal::arena_slot Struct Reference

#include <scheduler_common.h>

Inheritance diagram for tbb::internal::arena_slot:

Collaboration diagram for tbb::internal::arena_slot:

Public Member Functions
void	fill_with_canary_pattern (size_t, size_t)
void	allocate_task_pool (size_t n)
void	free_task_pool ()
	Deallocate task pool that was allocated by means of allocate_task_pool. More...

Additional Inherited Members
Public Attributes inherited from tbb::internal::padded_base< arena_slot_line1, NFS_MaxLineSize, sizeof(arena_slot_line1) % NFS_MaxLineSize >
char	pad [S - R]
Public Attributes inherited from tbb::internal::arena_slot_line1
generic_scheduler *	my_scheduler
	Scheduler of the thread attached to the slot. More...
task **__TBB_atomic	task_pool
__TBB_atomic size_t	head
	Index of the first ready task in the deque. More...
Public Attributes inherited from tbb::internal::padded_base< arena_slot_line2, NFS_MaxLineSize, sizeof(arena_slot_line2) % NFS_MaxLineSize >
char	pad [S - R]
Public Attributes inherited from tbb::internal::arena_slot_line2
unsigned	hint_for_pop
	Hint provided for operations with the container of starvation-resistant tasks. More...
__TBB_atomic size_t	tail
	Index of the element following the last ready task in the deque. More...
size_t	my_task_pool_size
	Capacity of the primary task pool (number of elements - pointers to task). More...
task **__TBB_atomic	task_pool_ptr

Detailed Description

Definition at line 366 of file scheduler_common.h.

Member Function Documentation

allocate_task_pool()

void tbb::internal::arena_slot::allocate_task_pool ( size_t  n )

inline

Definition at line 376 of file scheduler_common.h.

                                        {
        size_t byte_size = ((n * sizeof(task*) + NFS_MaxLineSize - 1) / NFS_MaxLineSize) * NFS_MaxLineSize;
        my_task_pool_size = byte_size / sizeof(task*);
        task_pool_ptr = (task**)NFS_Allocate( 1, byte_size, NULL );
        // No need to clear the fresh deque since valid items are designated by the head and tail members.
        // But fill it with a canary pattern in the high vigilance debug mode.
        fill_with_canary_pattern( 0, my_task_pool_size );
    }

References tbb::internal::NFS_Allocate(), and tbb::internal::NFS_MaxLineSize.

Referenced by tbb::internal::generic_scheduler::prepare_task_pool().

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fill_with_canary_pattern()

void tbb::internal::arena_slot::fill_with_canary_pattern ( size_t  , size_t    )

inline

Definition at line 373 of file scheduler_common.h.

{}

Referenced by tbb::internal::generic_scheduler::prepare_task_pool().

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free_task_pool()

void tbb::internal::arena_slot::free_task_pool ( )

inline

Deallocate task pool that was allocated by means of allocate_task_pool.

Definition at line 386 of file scheduler_common.h.

                           {
        // TODO: understand the assertion and modify
        // __TBB_ASSERT( !task_pool /*TODO: == EmptyTaskPool*/, NULL);
        if( task_pool_ptr ) {
           __TBB_ASSERT( my_task_pool_size, NULL);
           NFS_Free( task_pool_ptr );
           task_pool_ptr = NULL;
           my_task_pool_size = 0;
        }
    }

References __TBB_ASSERT, and tbb::internal::NFS_Free().

Referenced by tbb::internal::arena::free_arena().

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

• scheduler_common.h