Method refcount_decremented

modules/mono/csharp_script.cpp:1883–1919

}

bool CSharpInstance::refcount_decremented() {
#ifdef DEBUG_ENABLED
	CRASH_COND(!base_ref_counted);
	CRASH_COND(owner == nullptr);
#endif // DEBUG_ENABLED

	RefCounted *rc_owner = Object::cast_to<RefCounted>(owner);

	int refcount = rc_owner->get_reference_count();

	if (refcount == 1 && !gchandle.is_weak()) { // The managed side also holds a reference, hence 1 instead of 0
		// If owner owner is no longer referenced by the unmanaged side,
		// the managed instance takes responsibility of deleting the owner when GCed.

		// Release the current strong handle and replace it with a weak handle.

		GCHandleIntPtr old_gchandle = gchandle.get_intptr();
		gchandle.handle = { nullptr }; // No longer owns the handle (released by swap function)

		GCHandleIntPtr new_gchandle = { nullptr };
		bool create_weak = true;
		bool target_alive = GDMonoCache::managed_callbacks.ScriptManagerBridge_SwapGCHandleForType(
				old_gchandle, &new_gchandle, create_weak);

		if (!target_alive) {
			return refcount == 0; // Called after the managed side was collected, so nothing to do here
		}

		gchandle = MonoGCHandleData(new_gchandle, gdmono::GCHandleType::WEAK_HANDLE);

		return false;
	}

	ref_dying = (refcount == 0);

	return ref_dying;
}

const Variant CSharpInstance::get_rpc_config() const {
	return script->get_rpc_config();