Inheritance diagram for tbb::internal::nested_arena_context:

Collaboration diagram for tbb::internal::nested_arena_context:

Public Member Functions
	nested_arena_context (generic_scheduler s, arena a, size_t slot_index, bool type, bool same)

	~nested_arena_context ()

Private Member Functions
void	mimic_outermost_level (arena *a, bool type)

Private Member Functions inherited from tbb::internal::no_copy
	no_copy (const no_copy &)=delete

	no_copy ()=default

Private Attributes
generic_scheduler &	my_scheduler

scheduler_state	my_orig_state

task_group_context *	my_orig_ctx

const bool	same_arena

Detailed Description

Definition at line 673 of file arena.cpp.

Constructor & Destructor Documentation

◆ nested_arena_context()

tbb::internal::nested_arena_context::nested_arena_context	(	generic_scheduler *	s,
		arena *	a,
		size_t	slot_index,
		bool	type,
		bool	same
	)

inline

Definition at line 675 of file arena.cpp.

         : my_scheduler(*s), my_orig_ctx(NULL), same_arena(same) {
         if (same_arena) {
             my_orig_state.my_properties = my_scheduler.my_properties;
             my_orig_state.my_innermost_running_task = my_scheduler.my_innermost_running_task;
             mimic_outermost_level(a, type);
         } else {
             my_orig_state = *s;
 #if __TBB_PREVIEW_RESUMABLE_TASKS
             my_scheduler.my_properties.genuine = true;
             my_scheduler.my_current_is_recalled = NULL;
 #endif
             mimic_outermost_level(a, type);
             s->nested_arena_entry(a, slot_index);
         }
     }

References mimic_outermost_level(), tbb::internal::scheduler_state::my_innermost_running_task, my_orig_state, tbb::internal::scheduler_state::my_properties, my_scheduler, s, same_arena, and type.

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◆ ~nested_arena_context()

tbb::internal::nested_arena_context::~nested_arena_context ( )

inline

Definition at line 691 of file arena.cpp.

                             {
 #if __TBB_TASK_GROUP_CONTEXT
         my_scheduler.my_dummy_task->prefix().context = my_orig_ctx; // restore context of dummy task
 #endif
         if (same_arena) {
             my_scheduler.my_properties = my_orig_state.my_properties;
             my_scheduler.my_innermost_running_task = my_orig_state.my_innermost_running_task;
         } else {
             my_scheduler.nested_arena_exit();
             static_cast<scheduler_state&>(my_scheduler) = my_orig_state; // restore arena settings
 #if __TBB_TASK_PRIORITY
             my_scheduler.my_local_reload_epoch = *my_orig_state.my_ref_reload_epoch;
 #endif
             governor::assume_scheduler(&my_scheduler);
         }
     }

References tbb::internal::governor::assume_scheduler(), tbb::internal::task_prefix::context, tbb::internal::generic_scheduler::my_dummy_task, tbb::internal::scheduler_state::my_innermost_running_task, my_orig_ctx, my_orig_state, tbb::internal::scheduler_state::my_properties, my_scheduler, tbb::internal::generic_scheduler::nested_arena_exit(), tbb::task::prefix(), and same_arena.

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Member Function Documentation

◆ mimic_outermost_level()

void tbb::internal::nested_arena_context::mimic_outermost_level	(	arena *	a,
		bool	type
	)

inlineprivate

Definition at line 714 of file arena.cpp.

                                                     {
         my_scheduler.my_properties.outermost = true;
         my_scheduler.my_properties.type = type;
         my_scheduler.my_innermost_running_task = my_scheduler.my_dummy_task;
 #if __TBB_PREVIEW_CRITICAL_TASKS
         my_scheduler.my_properties.has_taken_critical_task = false;
 #endif
 #if __TBB_TASK_GROUP_CONTEXT
         // Save dummy's context and replace it by arena's context
         my_orig_ctx = my_scheduler.my_dummy_task->prefix().context;
         my_scheduler.my_dummy_task->prefix().context = a->my_default_ctx;
 #endif
     }