Revision control
++ // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
++ // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
++ // SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
++ // SPDX-License-Identifier: Apache-2.0
++
++ #ifndef PX_SLIST_H
++ #define PX_SLIST_H
++
++ #include "foundation/PxAssert.h"
++ #include "foundation/PxAlignedMalloc.h"
++
++ #if PX_P64_FAMILY
++ #define PX_SLIST_ALIGNMENT 16
++ #else
++ #define PX_SLIST_ALIGNMENT 8
++ #endif
++
++ #if !PX_DOXYGEN
++ namespace physx
++ {
++ #endif
++ #if PX_VC
++ #pragma warning(push)
++ #pragma warning(disable : 4324) // Padding was added at the end of a structure because of a __declspec(align) value.
++ #endif
++
++ PX_ALIGN_PREFIX(PX_SLIST_ALIGNMENT)
++ class PxSListEntry
++ {
++ friend struct PxSListImpl;
++
++ public:
++ PxSListEntry() : mNext(NULL)
++ {
++ PX_ASSERT((size_t(this) & (PX_SLIST_ALIGNMENT - 1)) == 0);
++ }
++
++ // Only use on elements returned by SList::flush()
++ // because the operation is not atomic.
++ PxSListEntry* next()
++ {
++ return mNext;
++ }
++
++ private:
++ PxSListEntry* mNext;
++ }PX_ALIGN_SUFFIX(PX_SLIST_ALIGNMENT);
++
++ #if PX_VC
++ #pragma warning(pop)
++ #endif
++
++ // template-less implementation
++ struct PX_FOUNDATION_API PxSListImpl
++ {
++ PxSListImpl();
++ ~PxSListImpl();
++ void push(PxSListEntry* entry);
++ PxSListEntry* pop();
++ PxSListEntry* flush();
++ static uint32_t getSize();
++ };
++
++ template <typename Alloc = PxReflectionAllocator<PxSListImpl> >
++ class PxSListT : protected Alloc
++ {
++ public:
++ PxSListT(const Alloc& alloc = Alloc()) : Alloc(alloc)
++ {
++ mImpl = reinterpret_cast<PxSListImpl*>(Alloc::allocate(PxSListImpl::getSize(), PX_FL));
++ PX_ASSERT((size_t(mImpl) & (PX_SLIST_ALIGNMENT - 1)) == 0);
++ PX_PLACEMENT_NEW(mImpl, PxSListImpl)();
++ }
++ ~PxSListT()
++ {
++ mImpl->~PxSListImpl();
++ Alloc::deallocate(mImpl);
++ }
++
++ // pushes a new element to the list
++ void push(PxSListEntry& entry)
++ {
++ mImpl->push(&entry);
++ }
++
++ // pops an element from the list
++ PxSListEntry* pop()
++ {
++ return mImpl->pop();
++ }
++
++ // removes all items from list, returns pointer to first element
++ PxSListEntry* flush()
++ {
++ return mImpl->flush();
++ }
++
++ private:
++ PxSListImpl* mImpl;
++ };
++
++ typedef PxSListT<> PxSList;
++
++ #if !PX_DOXYGEN
++ } // namespace physx
++ #endif
++
++ #endif
++