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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
#include "common.h"
#include "gcenv.h"
#include "gchandletableimpl.h"
#include "objecthandle.h"
GCHandleStore* g_gcGlobalHandleStore;
IGCHandleManager* CreateGCHandleManager()
{
return new (nothrow) GCHandleManager();
}
void GCHandleStore::Uproot()
{
Ref_RemoveHandleTableBucket(&_underlyingBucket);
}
bool GCHandleStore::ContainsHandle(OBJECTHANDLE handle)
{
return _underlyingBucket.Contains(handle);
}
OBJECTHANDLE GCHandleStore::CreateHandleOfType(Object* object, int type)
{
HHANDLETABLE handletable = _underlyingBucket.pTable[GetCurrentThreadHomeHeapNumber()];
return ::HndCreateHandle(handletable, type, ObjectToOBJECTREF(object));
}
OBJECTHANDLE GCHandleStore::CreateHandleOfType(Object* object, int type, int heapToAffinitizeTo)
{
HHANDLETABLE handletable = _underlyingBucket.pTable[heapToAffinitizeTo];
return ::HndCreateHandle(handletable, type, ObjectToOBJECTREF(object));
}
OBJECTHANDLE GCHandleStore::CreateHandleWithExtraInfo(Object* object, int type, void* pExtraInfo)
{
HHANDLETABLE handletable = _underlyingBucket.pTable[GetCurrentThreadHomeHeapNumber()];
return ::HndCreateHandle(handletable, type, ObjectToOBJECTREF(object), reinterpret_cast<uintptr_t>(pExtraInfo));
}
OBJECTHANDLE GCHandleStore::CreateDependentHandle(Object* primary, Object* secondary)
{
HHANDLETABLE handletable = _underlyingBucket.pTable[GetCurrentThreadHomeHeapNumber()];
OBJECTHANDLE handle = ::HndCreateHandle(handletable, HNDTYPE_DEPENDENT, ObjectToOBJECTREF(primary));
if (!handle)
{
return nullptr;
}
::SetDependentHandleSecondary(handle, ObjectToOBJECTREF(secondary));
return handle;
}
GCHandleStore::~GCHandleStore()
{
::Ref_DestroyHandleTableBucket(&_underlyingBucket);
}
bool GCHandleManager::Initialize()
{
return Ref_Initialize();
}
void GCHandleManager::Shutdown()
{
if (g_gcGlobalHandleStore != nullptr)
{
DestroyHandleStore(g_gcGlobalHandleStore);
}
::Ref_Shutdown();
}
IGCHandleStore* GCHandleManager::GetGlobalHandleStore()
{
return g_gcGlobalHandleStore;
}
IGCHandleStore* GCHandleManager::CreateHandleStore(void* context)
{
#ifndef FEATURE_REDHAWK
GCHandleStore* store = new (nothrow) GCHandleStore();
if (store == nullptr)
return nullptr;
bool success = ::Ref_InitializeHandleTableBucket(&store->_underlyingBucket, context);
if (!success)
{
delete store;
return nullptr;
}
return store;
#else
assert("CreateHandleStore is not implemented when FEATURE_REDHAWK is defined!");
return nullptr;
#endif
}
void GCHandleManager::DestroyHandleStore(IGCHandleStore* store)
{
delete store;
}
void* GCHandleManager::GetHandleContext(OBJECTHANDLE handle)
{
return (void*)((uintptr_t)::HndGetHandleTableADIndex(::HndGetHandleTable(handle)).m_dwIndex);
}
OBJECTHANDLE GCHandleManager::CreateGlobalHandleOfType(Object* object, int type)
{
return ::HndCreateHandle(g_HandleTableMap.pBuckets[0]->pTable[GetCurrentThreadHomeHeapNumber()], type, ObjectToOBJECTREF(object));
}
OBJECTHANDLE GCHandleManager::CreateDuplicateHandle(OBJECTHANDLE handle)
{
return ::HndCreateHandle(HndGetHandleTable(handle), HNDTYPE_DEFAULT, ::HndFetchHandle(handle));
}
void GCHandleManager::DestroyHandleOfType(OBJECTHANDLE handle, int type)
{
::HndDestroyHandle(::HndGetHandleTable(handle), type, handle);
}
void GCHandleManager::DestroyHandleOfUnknownType(OBJECTHANDLE handle)
{
::HndDestroyHandleOfUnknownType(::HndGetHandleTable(handle), handle);
}
void* GCHandleManager::GetExtraInfoFromHandle(OBJECTHANDLE handle)
{
return (void*)::HndGetHandleExtraInfo(handle);
}
void GCHandleManager::StoreObjectInHandle(OBJECTHANDLE handle, Object* object)
{
::HndAssignHandle(handle, ObjectToOBJECTREF(object));
}
bool GCHandleManager::StoreObjectInHandleIfNull(OBJECTHANDLE handle, Object* object)
{
return !!::HndFirstAssignHandle(handle, ObjectToOBJECTREF(object));
}
Object* GCHandleManager::InterlockedCompareExchangeObjectInHandle(OBJECTHANDLE handle, Object* object, Object* comparandObject)
{
return (Object*)::HndInterlockedCompareExchangeHandle(handle, ObjectToOBJECTREF(object), ObjectToOBJECTREF(comparandObject));
}
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