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C#: Ensure native handles are freed after switch to .NET Core

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Finalizers are longer guaranteed to be called on exit now that
we switched to .NET Core. This results in native instances leaking.

The only solution I can think of so far is to keep a list of all
instances alive to dispose when the AssemblyLoadContext.Unloading
event is raised.
This commit is contained in:
Ignacio Roldán Etcheverry 2021-12-28 23:25:16 +01:00
parent 4d710bf659
commit f88d8902cf
15 changed files with 185 additions and 32 deletions
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1
modules/mono/csharp_script.cpp
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@ -1581,6 +1581,7 @@ void CSharpLanguage::tie_managed_to_unmanaged_with_pre_setup(GCHandleIntPtr p_gc
CSharpInstance *instance = CAST_CSHARP_INSTANCE(p_unmanaged->get_script_instance());
if (!instance) {
// Native bindings don't need post-setup
return;
}