The structure of an arena, except the array of slots. More...
#include <arena.h>
Public Attributes | |
| unsigned | my_num_workers_allotted |
| The number of workers that have been marked out by the resource manager to service the arena. More... | |
| atomic< unsigned > | my_references |
| Reference counter for the arena. More... | |
| atomic< unsigned > | my_limit |
| The maximal number of currently busy slots. More... | |
| task_stream< num_priority_levels > | my_task_stream |
| Task pool for the tasks scheduled via task::enqueue() method. More... | |
| unsigned | my_max_num_workers |
| The number of workers requested by the master thread owning the arena. More... | |
| int | my_num_workers_requested |
| The number of workers that are currently requested from the resource manager. More... | |
| tbb::atomic< uintptr_t > | my_pool_state |
| Current task pool state and estimate of available tasks amount. More... | |
| market * | my_market |
| The market that owns this arena. More... | |
| uintptr_t | my_aba_epoch |
| ABA prevention marker. More... | |
| cpu_ctl_env | my_cpu_ctl_env |
| FPU control settings of arena's master thread captured at the moment of arena instantiation. More... | |
| unsigned | my_num_slots |
| The number of slots in the arena. More... | |
| unsigned | my_num_reserved_slots |
| The number of reserved slots (can be occupied only by masters). More... | |
| concurrent_monitor | my_exit_monitors |
| Waiting object for master threads that cannot join the arena. More... | |
 Public Attributes inherited from tbb::internal::padded_base< intrusive_list_node, NFS_MaxLineSize, sizeof(intrusive_list_node) % NFS_MaxLineSize > | |
| char | pad [S - R] |
| Public Attributes inherited from tbb::internal::intrusive_list_node | |
| intrusive_list_node * | my_prev_node |
| intrusive_list_node * | my_next_node |
Detailed Description
The structure of an arena, except the array of slots.
Separated in order to simplify padding. Intrusive list node base class is used by market to form a list of arenas.
Member Data Documentation
◆ my_aba_epoch
| uintptr_t tbb::internal::arena_base::my_aba_epoch |
ABA prevention marker.
Definition at line 235 of file arena.h.
Referenced by tbb::internal::arena::arena(), tbb::internal::market::detach_arena(), and tbb::internal::arena::on_thread_leaving().
◆ my_cpu_ctl_env
| cpu_ctl_env tbb::internal::arena_base::my_cpu_ctl_env |
FPU control settings of arena's master thread captured at the moment of arena instantiation.
Definition at line 239 of file arena.h.
Referenced by tbb::internal::arena::arena(), and tbb::internal::arena::process().
◆ my_exit_monitors
| concurrent_monitor tbb::internal::arena_base::my_exit_monitors |
Waiting object for master threads that cannot join the arena.
Definition at line 263 of file arena.h.
Referenced by tbb::internal::generic_scheduler::nested_arena_exit().
◆ my_limit
| atomic<unsigned> tbb::internal::arena_base::my_limit |
The maximal number of currently busy slots.
Definition at line 161 of file arena.h.
Referenced by tbb::internal::arena::arena(), tbb::internal::arena::is_out_of_work(), tbb::internal::generic_scheduler::lock_task_pool(), tbb::internal::arena::occupy_free_slot(), and tbb::internal::generic_scheduler::steal_task().
◆ my_market
| market* tbb::internal::arena_base::my_market |
The market that owns this arena.
Definition at line 232 of file arena.h.
Referenced by tbb::internal::arena::advertise_new_work(), tbb::internal::arena::arena(), tbb::internal::generic_scheduler::attach_arena(), tbb::internal::arena::free_arena(), tbb::internal::arena::is_out_of_work(), tbb::internal::generic_scheduler::nested_arena_entry(), tbb::internal::generic_scheduler::nested_arena_exit(), tbb::internal::arena::on_thread_leaving(), and tbb::internal::arena::restore_priority_if_need().
◆ my_max_num_workers
| unsigned tbb::internal::arena_base::my_max_num_workers |
The number of workers requested by the master thread owning the arena.
Definition at line 185 of file arena.h.
Referenced by tbb::internal::arena::advertise_new_work(), tbb::internal::arena::arena(), tbb::internal::arena::free_arena(), tbb::internal::arena::is_out_of_work(), tbb::internal::market::try_destroy_arena(), and tbb::internal::market::update_allotment().
◆ my_num_reserved_slots
| unsigned tbb::internal::arena_base::my_num_reserved_slots |
The number of reserved slots (can be occupied only by masters).
Definition at line 253 of file arena.h.
Referenced by tbb::internal::arena::advertise_new_work(), tbb::internal::arena::arena(), tbb::internal::generic_scheduler::nested_arena_entry(), tbb::internal::generic_scheduler::nested_arena_exit(), tbb::internal::arena::occupy_free_slot(), tbb::internal::arena::on_thread_leaving(), and tbb::internal::arena::process().
◆ my_num_slots
| unsigned tbb::internal::arena_base::my_num_slots |
The number of slots in the arena.
Definition at line 250 of file arena.h.
Referenced by tbb::internal::arena::arena(), tbb::internal::arena::free_arena(), tbb::internal::arena::mailbox(), tbb::internal::generic_scheduler::max_threads_in_arena(), tbb::internal::arena::occupy_free_slot(), tbb::internal::arena::on_thread_leaving(), and tbb::internal::arena::process().
◆ my_num_workers_allotted
| unsigned tbb::internal::arena_base::my_num_workers_allotted |
The number of workers that have been marked out by the resource manager to service the arena.
Definition at line 147 of file arena.h.
Referenced by tbb::internal::market::adjust_demand(), tbb::internal::market::arena_in_need(), tbb::internal::arena::free_arena(), tbb::internal::arena::is_recall_requested(), tbb::internal::market::try_destroy_arena(), and tbb::internal::market::update_allotment().
◆ my_num_workers_requested
| int tbb::internal::arena_base::my_num_workers_requested |
The number of workers that are currently requested from the resource manager.
Definition at line 188 of file arena.h.
Referenced by tbb::internal::market::adjust_demand(), tbb::internal::arena::free_arena(), tbb::internal::market::try_destroy_arena(), and tbb::internal::market::update_allotment().
◆ my_pool_state
| tbb::atomic<uintptr_t> tbb::internal::arena_base::my_pool_state |
Current task pool state and estimate of available tasks amount.
The estimate is either 0 (SNAPSHOT_EMPTY) or infinity (SNAPSHOT_FULL). Special state is "busy" (any other unsigned value). Note that the implementation of arena::is_busy_or_empty() requires my_pool_state to be unsigned.
Definition at line 195 of file arena.h.
Referenced by tbb::internal::arena::advertise_new_work(), tbb::internal::arena::free_arena(), tbb::internal::arena::is_out_of_work(), tbb::internal::market::try_destroy_arena(), and tbb::internal::generic_scheduler::wait_until_empty().
◆ my_references
| atomic<unsigned> tbb::internal::arena_base::my_references |
Reference counter for the arena.
Worker and master references are counted separately: first several bits are for references from master threads or explicit task_arenas (see arena::ref_external_bits below); the rest counts the number of workers servicing the arena.
Definition at line 153 of file arena.h.
Referenced by tbb::internal::arena::arena(), tbb::internal::market::arena_in_need(), tbb::internal::arena::free_arena(), tbb::internal::arena::num_workers_active(), tbb::internal::arena::on_thread_leaving(), and tbb::internal::market::try_destroy_arena().
◆ my_task_stream
| task_stream<num_priority_levels> tbb::internal::arena_base::my_task_stream |
Task pool for the tasks scheduled via task::enqueue() method.
Such scheduling guarantees eventual execution even if
- new tasks are constantly coming (by extracting scheduled tasks in relaxed FIFO order);
- the enqueuing thread does not call any of wait_for_all methods. Depending on __TBB_TASK_PRIORITY, num_priority_levels can be 1 or more.
Definition at line 172 of file arena.h.
Referenced by tbb::internal::arena::arena(), tbb::internal::arena::free_arena(), tbb::internal::arena::has_enqueued_tasks(), tbb::internal::arena::is_out_of_work(), and tbb::internal::arena::restore_priority_if_need().
The documentation for this struct was generated from the following file: