NonCachedCCWBase.h
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#pragma once
#include "gc/GCHandle.h"
#include "vm/CCWBase.h"
#include "vm/Exception.h"
#include "utils/TemplateUtils.h"
#include "utils/Memory.h"
namespace il2cpp
{
namespace vm
{
template<typename TDerived>
struct NOVTABLE NonCachedCCWBase : CCWBase
{
private:
volatile uint32_t m_RefCount;
uint32_t m_GCHandle;
public:
inline NonCachedCCWBase(Il2CppObject* obj) :
CCWBase(obj),
m_RefCount(1) // We start with a ref count of 1
{
m_GCHandle = gc::GCHandle::New(GetManagedObjectInline(), false);
IL2CPP_ASSERT(m_GCHandle != 0);
Il2CppStaticAssert(utils::TemplateUtils::IsBaseOf<NonCachedCCWBase<TDerived>, TDerived>::value);
}
inline ~NonCachedCCWBase()
{
IL2CPP_ASSERT(m_GCHandle != 0);
gc::GCHandle::Free(m_GCHandle);
m_GCHandle = 0;
}
IL2CPP_FORCE_INLINE uint32_t AddRefImpl()
{
return Atomic::Increment(&m_RefCount);
}
IL2CPP_FORCE_INLINE uint32_t ReleaseImpl()
{
const uint32_t count = Atomic::Decrement(&m_RefCount);
if (count == 0)
Destroy();
return count;
}
IL2CPP_FORCE_INLINE static TDerived* __CreateInstance(Il2CppObject* obj)
{
void* memory = utils::Memory::Malloc(sizeof(TDerived));
if (memory == NULL)
Exception::RaiseOutOfMemoryException();
return new(memory) TDerived(obj);
}
virtual void STDCALL Destroy() IL2CPP_FINAL IL2CPP_OVERRIDE
{
IL2CPP_ASSERT(m_RefCount == 0);
TDerived* instance = static_cast<TDerived*>(this);
instance->~TDerived();
utils::Memory::Free(instance);
}
};
}
}