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Telegram/SourceFiles/data/data_abstract_structure.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "data/data_abstract_structure.h"
+
+#include "base/never_freed_pointer.h"
+
+namespace Data {
+namespace {
+
+using DataStructures = OrderedSet<AbstractStructure**>;
+base::NeverFreedPointer<DataStructures> structures;
+
+} // namespace
+
+namespace internal {
+
+void registerAbstractStructure(AbstractStructure **p) {
+	structures.createIfNull();
+	structures->insert(p);
+}
+
+} // namespace internal
+
+void clearGlobalStructures() {
+	if (!structures) return;
+	for (auto &p : *structures) {
+		delete (*p);
+		*p = nullptr;
+	}
+	structures.clear();
+}
+
+} // namespace Data