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Code/ThirdParty/RmlUi/Source/Core/ObserverPtr.cpp
56 строк
2 KB
C-Core
Updated RmlUi to 6.2 and added some improvements (#1813)
10 фев 2026, 01:19
Не верифицирован
10 фев 2026, 01:19
58e2d41
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#include "../../Include/RmlUi/Core/ObserverPtr.h" #include "Pool.h" namespace Rml { struct ObserverPtrData { bool is_shutdown = false; Pool<Detail::ObserverPtrBlock> block_pool{128, true}; }; static ObserverPtrData* observer_ptr_data = nullptr; void Detail::DeallocateObserverPtrBlockIfEmpty(ObserverPtrBlock* block) { RMLUI_ASSERT(block->num_observers >= 0); if (block->num_observers == 0 && block->pointed_to_object == nullptr) { observer_ptr_data->block_pool.DestroyAndDeallocate(block); if (observer_ptr_data->is_shutdown && observer_ptr_data->block_pool.GetNumAllocatedObjects() == 0) { delete observer_ptr_data; observer_ptr_data = nullptr; } } } void Detail::InitializeObserverPtrPool() { if (!observer_ptr_data) observer_ptr_data = new ObserverPtrData; observer_ptr_data->is_shutdown = false; } void Detail::ShutdownObserverPtrPool() { if (observer_ptr_data->block_pool.GetNumAllocatedObjects() == 0) { delete observer_ptr_data; observer_ptr_data = nullptr; } else { // This pool must outlive all other global variables that derive from EnableObserverPtr. This even includes user // variables which we have no control over. So if there are any objects still alive, let the pool garbage // collect itself when all references to it are gone. It is somewhat unreasonable to expect that no observer // pointers remain, particularly because that means no objects derived from Rml::EventListener can be alive in // user space, which can be a hassle to ensure and is otherwise pretty innocent. observer_ptr_data->is_shutdown = true; } } Detail::ObserverPtrBlock* Detail::AllocateObserverPtrBlock() { return observer_ptr_data->block_pool.AllocateAndConstruct(); } } // namespace Rml