/// <summary>
/// Prepares for execution as a stolen chore.
/// </summary>
void _UnrealizedChore::_PrepareStealUnstructured(ContextBase *pBaseContext)
{
InternalContextBase *pContext = static_cast<InternalContextBase *> (pBaseContext);
if (pContext->GetRootCollection() == NULL)
{
_TaskCollection* pTaskCollection = static_cast<_TaskCollection *> (_M_pTaskCollection);
ContextBase *pOriginContext = reinterpret_cast <ContextBase *> (pTaskCollection->_M_pOwningContext);
pContext->SetRootCollection(pTaskCollection);
//
// pOriginContext is only safe to touch if the act of stealing from a non-detached context put a hold on that context
// to block deletion until we are chained for cancellation.
//
SafeRWList<ListEntry> *pList = reinterpret_cast<SafeRWList<ListEntry> *> (pTaskCollection->_M_stealTracker);
ASSERT(sizeof(pTaskCollection->_M_stealTracker) >= sizeof(*pList));
if (_M_fDetached)
{
//
// We cannot touch the owning context -- it was detached as of the steal. The chain goes onto the task collection.
//
pContext->NotifyTaskCollectionChainedStealer();
pList->AddTail(&(pContext->m_stealChain));
}
else
{
pList->AcquireWrite();
pTaskCollection->_M_activeStealersForCancellation++;
pList->ReleaseWrite();
pOriginContext->AddStealer(pContext, true);
}
}
}
/// <summary>
/// Prepares for execution as a stolen chore.
/// </summary>
void _UnrealizedChore::_PrepareStealStructured(ContextBase *pBaseContext)
{
InternalContextBase *pContext = static_cast<InternalContextBase *> (pBaseContext);
if (pContext->GetRootCollection() == NULL)
{
_StructuredTaskCollection *pTaskCollection = static_cast<_StructuredTaskCollection *> (_M_pTaskCollection);
ContextBase *pOriginContext = reinterpret_cast <ContextBase *> (pTaskCollection->_M_pOwningContext);
pContext->SetRootCollection(pTaskCollection);
pOriginContext->AddStealer(pContext, false);
}
}