C++ (Cpp) CWorker::Execute示例

//---------------------------------------------------------------------------
//	@function:
//		CAutoTaskProxy::Execute
//
//	@doc:
//		Execute task in thread owning ATP (synchronous execution);
//
//---------------------------------------------------------------------------
void
CAutoTaskProxy::Execute
	(
	CTask *task
	)
{
	GPOS_ASSERT(OwnerOf(task) && "Task not owned by this ATP object");
	GPOS_ASSERT(CTask::EtsInit == task->m_status && "Task already scheduled");

	// mark task as ready to execute
	task->SetStatus(CTask::EtsDequeued);

	GPOS_TRY
	{
		// get worker of current thread
		CWorker *worker = CWorker::Self();
		GPOS_ASSERT(NULL != worker);

		// execute task
		worker->Execute(task);
	}
	GPOS_CATCH_EX(ex)
	{
		// mark task as erroneous
		task->SetStatus(CTask::EtsError);

		if (m_propagate_error)
		{
			GPOS_RETHROW(ex);
		}
	}
	GPOS_CATCH_END;

	// Raise exception if task encounters an exception
	if (task->HasPendingExceptions())
	{
		if (m_propagate_error)
		{
			GPOS_RETHROW(task->GetErrCtxt()->GetException());
		}
		else
		{
			task->GetErrCtxt()->Reset();
		}
	}

	// mark task as reported
	task->SetReported();
}

示例#2

显示文件

文件： CAutoTaskProxy.cpp 项目： MoZhonghua/gporca

//---------------------------------------------------------------------------
//	@function:
//		CAutoTaskProxy::Execute
//
//	@doc:
//		Execute task in thread owning ATP (synchronous execution);
//
//---------------------------------------------------------------------------
void
CAutoTaskProxy::Execute
	(
	CTask *ptsk
	)
{
	GPOS_ASSERT(FOwnerOf(ptsk) && "Task not owned by this ATP object");
	GPOS_ASSERT(CTask::EtsInit == ptsk->m_estatus && "Task already scheduled");

	// mark task as ready to execute
	ptsk->SetStatus(CTask::EtsDequeued);

	GPOS_TRY
	{
		// get worker of current thread
		CWorker *pwrkr = CWorker::PwrkrSelf();
		GPOS_ASSERT(NULL != pwrkr);

		// execute task
		pwrkr->Execute(ptsk);
	}
	GPOS_CATCH_EX(ex)
	{
		// mark task as erroneous
		ptsk->SetStatus(CTask::EtsError);

		if (m_fPropagateError)
		{
			GPOS_RETHROW(ex);
		}
	}
	GPOS_CATCH_END;

	// Raise exception if task encounters an exception
	if (ptsk->FPendingExc())
	{
		if (m_fPropagateError)
		{
			GPOS_RETHROW(ptsk->Perrctxt()->Exc());
		}
		else
		{
			ptsk->Perrctxt()->Reset();
		}
	}

	// mark task as reported
	ptsk->SetReported();
}