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Fix gc hole in Frozen.cs #76868

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Merged
EgorBo merged 3 commits into from
Oct 11, 2022
Merged

Fix gc hole in Frozen.cs #76868

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d6f1257
Fix gc hole in Frozen.cs
EgorBo Oct 11, 2022
0b721e7
Update src/tests/GC/API/Frozen/Frozen.cs
EgorBo Oct 11, 2022
c0425dd
Clean up
EgorBo Oct 11, 2022
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13 changes: 1 addition & 12 deletions src/tests/GC/API/Frozen/Frozen.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -134,20 +134,9 @@ internal class Node

internal static class Program
{
private static unsafe IntPtr GetMethodTablePointer(object obj)
{
GCHandle gch = GCHandle.Alloc(obj);
IntPtr pointerToPointerToObject = GCHandle.ToIntPtr(gch);
IntPtr pointerToObject = *((IntPtr*)pointerToPointerToObject);
IntPtr methodTable = *((IntPtr*)pointerToObject);
gch.Free();
return methodTable;
}

private static unsafe int Main(string[] args)
{
Node template = new Node();
IntPtr methodTable = GetMethodTablePointer(template);
IntPtr methodTable = typeof(Node).TypeHandle.Value;

FrozenSegmentBuilder frozenSegmentBuilder = new FrozenSegmentBuilder(1000);
IntPtr node1Ptr = frozenSegmentBuilder.Allocate(methodTable);
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