Switch modules from reference<> to shared_ptr<> and weak_ptr<>.

1 files changed, 42 insertions, 0 deletions

diff --git a/include/utility/pointer.h b/include/utility/pointer.h
new file mode 100644
index 000000000..2e356ae2b
--- /dev/null
+++ b/include/utility/pointer.h
@@ -0,0 +1,42 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2026 Sadie Powell <sadie@witchery.services>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+
+namespace insp
+{
+	/** Determines if the pointer in \p ptr1 is empty.
+	 * @param ptr Either a shared_ptr<> or a weak_ptr<>.
+	 */
+	template <typename Ptr>
+	bool empty_ptr(const Ptr& ptr)
+	{
+		return same_ptr(ptr, {});
+	}
+
+	/** Determines if the pointer in \p ptr1 points to the same value as the pointer in \p ptr2.
+	 * @param ptr1 Either a shared_ptr<> or a weak_ptr<>.
+	 * @param ptr2 Either a shared_ptr<> or a weak_ptr<>.
+	 */
+	template <typename Ptr1, typename Ptr2 = Ptr1>
+	bool same_ptr(const Ptr1& ptr1, const Ptr2& ptr2)
+	{
+		return !ptr1.owner_before(ptr2) && !ptr2.owner_before(ptr1);
+	}
+}