From 59e921d4538ac663b66dd08e300387afa507a971 Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Wed, 17 Jan 2018 02:49:55 -0800
Subject: [PATCH] ircd::ctx: Enforce semantics on ctx::list.

---
 include/ircd/ctx/list.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/include/ircd/ctx/list.h b/include/ircd/ctx/list.h
index d2d030206..b4e57e7b4 100644
--- a/include/ircd/ctx/list.h
+++ b/include/ircd/ctx/list.h
@@ -84,9 +84,34 @@ class ircd::ctx::list
 	void remove(ctx *const & = current);
 
 	list() = default;
+	list(list &&) noexcept;
+	list(const list &) = delete;
+	list &operator=(list &&) noexcept;
+	list &operator=(const list &) = delete;
 	~list() noexcept;
 };
 
+inline
+ircd::ctx::list::list(list &&o)
+noexcept
+:head{std::move(o.head)}
+,tail{std::move(o.tail)}
+{
+	o.head = nullptr;
+	o.tail = nullptr;
+}
+
+inline
+ircd::ctx::list &
+ircd::ctx::list::operator=(list &&o)
+noexcept
+{
+	this->~list();
+	std::swap(head, o.head);
+	std::swap(tail, o.tail);
+	return *this;
+}
+
 inline
 ircd::ctx::list::~list()
 noexcept