/// <summary>
/// Get a pointer to a pointer to the nongc static field data of a type. This function works for all generic types
/// </summary>
public IntPtr TryGetNonGcStaticFieldData(RuntimeTypeHandle runtimeTypeHandle)
{
unsafe
{
// Non-generic, non-dynamic static data is found via the FieldAccessMap
EEType *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
// Non-generic, non-dynamic types need special handling.
Debug.Assert(typeAsEEType->IsDynamicType || typeAsEEType->IsGeneric);
}
// Search hashtable for static entry
ExternalReferencesTable staticInfoLookup;
var parser = GetStaticInfo(runtimeTypeHandle, out staticInfoLookup);
if (!parser.IsNull)
{
var index = parser.GetUnsignedForBagElementKind(BagElementKind.NonGcStaticData);
return(index.HasValue ? staticInfoLookup.GetIntPtrFromIndex(index.Value) : IntPtr.Zero);
}
// Not found in hashtable... must be a dynamically created type
Debug.Assert(runtimeTypeHandle.IsDynamicType());
unsafe
{
EEType *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
if ((typeAsEEType->RareFlags & EETypeRareFlags.IsDynamicTypeWithNonGcStatics) != 0)
{
return(typeAsEEType->DynamicNonGcStaticsData);
}
}
// Type has no non-GC statics
return(IntPtr.Zero);
}
public void RegisterDynamicThreadStaticsInfo(RuntimeTypeHandle runtimeTypeHandle, uint offsetValue, int storageSize)
{
bool registered = false;
Debug.Assert(offsetValue != 0 && storageSize > 0 && runtimeTypeHandle.IsDynamicType());
_threadStaticsLock.Acquire();
try
{
// Sanity check to make sure we do not register thread statics for the same type more than once
uint temp;
Debug.Assert(!_dynamicGenericsThreadStatics.TryGetValue(runtimeTypeHandle, out temp) && storageSize > 0);
_dynamicGenericsThreadStatics.Add(runtimeTypeHandle, offsetValue);
_dynamicGenericsThreadStaticSizes.Add(offsetValue, storageSize);
registered = true;
}
finally
{
if (!registered)
{
_dynamicGenericsThreadStatics.Remove(runtimeTypeHandle);
_dynamicGenericsThreadStaticSizes.Remove(offsetValue);
}
_threadStaticsLock.Release();
}
}
public void RegisterDynamicThreadStaticsInfo(RuntimeTypeHandle runtimeTypeHandle, uint offsetValue, IntPtr gcDesc)
{
bool registered = false;
Debug.Assert(offsetValue != 0 && runtimeTypeHandle.IsDynamicType());
IntPtr typeManager = runtimeTypeHandle.GetTypeManager().GetIntPtrUNSAFE();
_threadStaticsLock.Acquire();
try
{
if (!_dynamicGenericsThreadStaticDescs.TryGetValue(typeManager, out LowLevelDictionary <uint, IntPtr> gcDescs))
{
_dynamicGenericsThreadStaticDescs.Add(typeManager, gcDescs = new LowLevelDictionary <uint, IntPtr>());
}
gcDescs.Add(offsetValue, gcDesc);
registered = true;
}
finally
{
if (!registered)
{
if (_dynamicGenericsThreadStaticDescs.TryGetValue(typeManager, out LowLevelDictionary <uint, IntPtr> gcDescs))
{
gcDescs.Remove(offsetValue);
}
}
_threadStaticsLock.Release();
}
}
public unsafe IntPtr TryGetThreadStaticFieldOffsetCookieForTypeAndFieldOffset(RuntimeTypeHandle runtimeTypeHandle, uint fieldOffset)
{
var cookieData = new PermanentAllocatedMemoryBlobs.ThreadStaticFieldOffsets();
if (runtimeTypeHandle.IsDynamicType())
{
cookieData.StartingOffsetInTlsBlock = 0;
cookieData.FieldOffset = fieldOffset;
}
else
{
IntPtr ptrToTlsOffset = TryGetTlsOffsetDictionaryCellForStaticType(runtimeTypeHandle);
if (ptrToTlsOffset == IntPtr.Zero)
{
return(IntPtr.Zero);
}
IntPtr tlsOffsetAsIntPtr = *(IntPtr *)ptrToTlsOffset.ToPointer();
uint tlsOffset = (uint)tlsOffsetAsIntPtr.ToInt32();
cookieData.StartingOffsetInTlsBlock = tlsOffset;
cookieData.FieldOffset = fieldOffset;
}
return(PermanentAllocatedMemoryBlobs.GetPointerToThreadStaticFieldOffsets(cookieData));
}
private IntPtr TryGetTlsOffsetDictionaryCellForDynamicType(RuntimeTypeHandle runtimeTypeHandle)
{
Debug.Assert(runtimeTypeHandle.IsDynamicType());
using (LockHolder.Hold(_threadStaticsLock))
{
uint offsetValue;
if (_dynamicGenericsThreadStatics.TryGetValue(runtimeTypeHandle, out offsetValue))
{
return(TryCreateDictionaryCellWithValue(offsetValue));
}
}
return(IntPtr.Zero);
}
public static unsafe bool IsPregeneratedOrTemplateRuntimeTypeHandle(RuntimeTypeHandle rtth)
{
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
if (!rtth.IsDynamicType())
{
return(true);
}
if (rtth.ToEETypePtr()->DynamicModule == null)
{
return(true);
}
return(rtth.ToEETypePtr()->DynamicModule->DynamicTypeSlotDispatchResolve == IntPtr.Zero);
#else
return(true);
#endif
}
public unsafe bool TryGetThreadStaticStartOffset(RuntimeTypeHandle runtimeTypeHandle, out int threadStaticsStartOffset)
{
threadStaticsStartOffset = -1;
if (runtimeTypeHandle.IsDynamicType())
{
// Specific TLS storage is allocated for each dynamic type. There is no starting offset since it's not a
// TLS storage block shared by multiple types.
threadStaticsStartOffset = 0;
return(true);
}
else
{
IntPtr ptrToTlsOffset = TryGetTlsOffsetDictionaryCellForStaticType(runtimeTypeHandle);
if (ptrToTlsOffset == IntPtr.Zero)
{
return(false);
}
threadStaticsStartOffset = *(int *)ptrToTlsOffset;
return(true);
}
}
private IntPtr TryGetTlsIndexDictionaryCellForDynamicType(RuntimeTypeHandle runtimeTypeHandle)
{
// Use TLS index of 0 for dynamic types (the index won't really be used)
Debug.Assert(runtimeTypeHandle.IsDynamicType());
return(TryCreateDictionaryCellWithValue(0));
}
// Various functions in static access need to create permanent pointers for use by thread static lookup.
#region GC/Non-GC Statics
/// <summary>
/// Get a pointer to the nongc static field data of a type. This function works for dynamic
/// types, reflectable types, and for all generic types
/// </summary>
public IntPtr TryGetNonGcStaticFieldData(RuntimeTypeHandle runtimeTypeHandle)
{
unsafe
{
MethodTable *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
// Non-generic, non-dynamic types need special handling.
if (!typeAsEEType->IsDynamicType && !typeAsEEType->IsGeneric)
{
if (typeAsEEType->HasCctor)
{
// The non-gc area for a type is immediately following its cctor context if it has one
IntPtr dataAddress = TryGetStaticClassConstructionContext(runtimeTypeHandle);
if (dataAddress != IntPtr.Zero)
{
return((IntPtr)(((byte *)dataAddress.ToPointer()) + sizeof(System.Runtime.CompilerServices.StaticClassConstructionContext)));
}
}
else
{
// If the type does not have a Cctor context, search for the field on the type in the field map which has the lowest offset,
// yet has the the correct type of storage.
IntPtr staticAddress;
if (TryGetStaticFieldBaseFromFieldAccessMap(runtimeTypeHandle, FieldAccessStaticDataKind.NonGC, out staticAddress))
{
return(staticAddress);
}
}
}
}
IntPtr nonGcStaticsAddress;
IntPtr gcStaticsAddress;
if (TryGetStaticsInfoForNamedType(runtimeTypeHandle, out nonGcStaticsAddress, out gcStaticsAddress))
{
return(nonGcStaticsAddress);
}
unsafe
{
// Non-generic, non-dynamic static data is found via the FieldAccessMap
MethodTable *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
// Non-generic, non-dynamic types need special handling.
Debug.Assert(typeAsEEType->IsDynamicType || typeAsEEType->IsGeneric);
}
// Search hashtable for static entry
ExternalReferencesTable staticInfoLookup;
var parser = GetStaticInfo(runtimeTypeHandle, out staticInfoLookup);
if (!parser.IsNull)
{
var index = parser.GetUnsignedForBagElementKind(BagElementKind.NonGcStaticData);
return(index.HasValue ? staticInfoLookup.GetIntPtrFromIndex(index.Value) : IntPtr.Zero);
}
// Not found in hashtable... must be a dynamically created type
Debug.Assert(runtimeTypeHandle.IsDynamicType());
unsafe
{
MethodTable *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
if ((typeAsEEType->RareFlags & EETypeRareFlags.IsDynamicTypeWithNonGcStatics) != 0)
{
return(typeAsEEType->DynamicNonGcStaticsData);
}
}
// Type has no non-GC statics
return(IntPtr.Zero);
}
/// <summary>
/// Get a pointer to the gc static field data of a type. This function works for dynamic
/// types, reflectable types, and for all generic types
/// </summary>
public IntPtr TryGetGcStaticFieldData(RuntimeTypeHandle runtimeTypeHandle)
{
unsafe
{
// Non-generic, non-dynamic static data is found via the FieldAccessMap
MethodTable *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
// Non-generic, non-dynamic types need special handling.
if (!typeAsEEType->IsDynamicType && !typeAsEEType->IsGeneric)
{
//search for the field on the type in the field map which has the lowest offset,
// yet has the the correct type of storage.
IntPtr staticAddress;
if (TryGetStaticFieldBaseFromFieldAccessMap(runtimeTypeHandle, FieldAccessStaticDataKind.GC, out staticAddress))
{
return(staticAddress);
}
else
{
return(IntPtr.Zero);
}
}
}
IntPtr nonGcStaticsAddress;
IntPtr gcStaticsAddress;
if (TryGetStaticsInfoForNamedType(runtimeTypeHandle, out nonGcStaticsAddress, out gcStaticsAddress))
{
return(gcStaticsAddress);
}
unsafe
{
// Non-generic, non-dynamic static data is found via the FieldAccessMap
MethodTable *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
// Non-generic, non-dynamic types need special handling.
Debug.Assert(typeAsEEType->IsDynamicType || typeAsEEType->IsGeneric);
}
// Search hashtable for static entry
ExternalReferencesTable staticInfoLookup;
var parser = GetStaticInfo(runtimeTypeHandle, out staticInfoLookup);
if (!parser.IsNull)
{
var index = parser.GetUnsignedForBagElementKind(BagElementKind.GcStaticData);
return(index.HasValue ? staticInfoLookup.GetIntPtrFromIndex(index.Value) : IntPtr.Zero);
}
// Not found in hashtable... must be a dynamically created type
Debug.Assert(runtimeTypeHandle.IsDynamicType());
unsafe
{
MethodTable *typeAsEEType = runtimeTypeHandle.ToEETypePtr();
if ((typeAsEEType->RareFlags & EETypeRareFlags.IsDynamicTypeWithGcStatics) != 0)
{
return(typeAsEEType->DynamicGcStaticsData);
}
}
// Type has no GC statics
return(IntPtr.Zero);
}
