#include <WaitingTaskWithArenaHolder.h>

Public Member Functions
void	doneWaiting (std::exception_ptr iExcept)

WaitingTaskHolder	makeWaitingTaskHolderAndRelease ()

WaitingTaskWithArenaHolder &	operator= (const WaitingTaskWithArenaHolder &iRHS)

WaitingTaskWithArenaHolder &	operator= (WaitingTaskWithArenaHolder &&iRHS)

	WaitingTaskWithArenaHolder ()

	WaitingTaskWithArenaHolder (WaitingTask *iTask)

	WaitingTaskWithArenaHolder (WaitingTaskWithArenaHolder &&iOther)

	WaitingTaskWithArenaHolder (WaitingTaskWithArenaHolder const &iHolder)

	~WaitingTaskWithArenaHolder ()

Private Attributes
std::shared_ptr< tbb::task_arena >	m_arena

WaitingTask *	m_task

Detailed Description

Description: This holds a WaitingTask and can be passed to something the WaitingTask is waiting for. That allows that something to call doneWaiting to let the WaitingTask know it can run. The use of the arena allows one to call doneWaiting from a thread external to the arena where the task should run. The external thread might be a non-TBB thread.

Definition at line 31 of file WaitingTaskWithArenaHolder.h.

Constructor & Destructor Documentation

◆ WaitingTaskWithArenaHolder() [1/4]

edm::WaitingTaskWithArenaHolder::WaitingTaskWithArenaHolder ( )

Definition at line 16 of file WaitingTaskWithArenaHolder.cc.

16 : m_task(nullptr) {}

◆ WaitingTaskWithArenaHolder() [2/4]

edm::WaitingTaskWithArenaHolder::WaitingTaskWithArenaHolder ( WaitingTask * iTask )

explicit

Definition at line 21 of file WaitingTaskWithArenaHolder.cc.

       : m_task(iTask), m_arena(std::make_shared<tbb::task_arena>(tbb::task_arena::attach())) {
     m_task->increment_ref_count();
   }

References m_task.

◆ ~WaitingTaskWithArenaHolder()

edm::WaitingTaskWithArenaHolder::~WaitingTaskWithArenaHolder ( )

Definition at line 26 of file WaitingTaskWithArenaHolder.cc.

                                                           {
     if (m_task) {
       doneWaiting(std::exception_ptr{});
     }
   }

References doneWaiting(), and m_task.

◆ WaitingTaskWithArenaHolder() [3/4]

edm::WaitingTaskWithArenaHolder::WaitingTaskWithArenaHolder ( WaitingTaskWithArenaHolder const & iHolder )

Definition at line 32 of file WaitingTaskWithArenaHolder.cc.

       : m_task(iHolder.m_task), m_arena(iHolder.m_arena) {
     if (LIKELY(m_task != nullptr)) {
       m_task->increment_ref_count();
     }
   }

References LIKELY, and m_task.

◆ WaitingTaskWithArenaHolder() [4/4]

edm::WaitingTaskWithArenaHolder::WaitingTaskWithArenaHolder ( WaitingTaskWithArenaHolder && iOther )

Definition at line 39 of file WaitingTaskWithArenaHolder.cc.

       : m_task(iOther.m_task), m_arena(std::move(iOther.m_arena)) {
     iOther.m_task = nullptr;
   }

Member Function Documentation

◆ doneWaiting()

void edm::WaitingTaskWithArenaHolder::doneWaiting ( std::exception_ptr iExcept )

Definition at line 62 of file WaitingTaskWithArenaHolder.cc.

                                                                        {
     if (iExcept) {
       m_task->dependentTaskFailed(iExcept);
     }
     //enqueue can run the task before we finish
     // doneWaiting and some other thread might
     // try to reuse this object. Resetting
     // before enqueue avoids problems
     auto task = m_task;
     m_task = nullptr;
     if (0 == task->decrement_ref_count()) {
       // The enqueue call will cause a worker thread to be created in
       // the arena if there is not one already.
       m_arena->enqueue([task = task]() { tbb::task::spawn(*task); });
     }
   }

References edm::WaitingTask::dependentTaskFailed(), m_arena, m_task, and TrackValidation_cff::task.

Referenced by edm::Worker::runAcquireAfterAsyncPrefetch(), and ~WaitingTaskWithArenaHolder().

◆ makeWaitingTaskHolderAndRelease()

WaitingTaskHolder edm::WaitingTaskWithArenaHolder::makeWaitingTaskHolderAndRelease ( )

Definition at line 91 of file WaitingTaskWithArenaHolder.cc.

                                                                                 {
     WaitingTaskHolder holder(m_task);
     m_task->decrement_ref_count();
     m_task = nullptr;
     return holder;
   }

References m_task.

◆ operator=() [1/2]

WaitingTaskWithArenaHolder & edm::WaitingTaskWithArenaHolder::operator= ( const WaitingTaskWithArenaHolder & iRHS )

Definition at line 44 of file WaitingTaskWithArenaHolder.cc.

                                                                                                           {
     WaitingTaskWithArenaHolder tmp(iRHS);
     std::swap(m_task, tmp.m_task);
     std::swap(m_arena, tmp.m_arena);
     return *this;
   }

References m_arena, m_task, std::swap(), and createJobs::tmp.

◆ operator=() [2/2]

WaitingTaskWithArenaHolder & edm::WaitingTaskWithArenaHolder::operator= ( WaitingTaskWithArenaHolder && iRHS )

Definition at line 51 of file WaitingTaskWithArenaHolder.cc.

                                                                                                      {
     WaitingTaskWithArenaHolder tmp(std::move(iRHS));
     std::swap(m_task, tmp.m_task);
     std::swap(m_arena, tmp.m_arena);
     return *this;
   }