From c13f24d55fea3bfafcc12851f7d5ea52797dbd6e Mon Sep 17 00:00:00 2001
From: Zifeng Deng <oi_dzf@qq.com>
Date: Thu, 9 Nov 2023 22:15:12 +0800
Subject: [PATCH] feat(io_context): no  require lock_free in local spsc_cursor

---
 include/co_context/detail/spsc_cursor.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/co_context/detail/spsc_cursor.hpp b/include/co_context/detail/spsc_cursor.hpp
index cebcf3f..c84feb4 100644
--- a/include/co_context/detail/spsc_cursor.hpp
+++ b/include/co_context/detail/spsc_cursor.hpp
@@ -14,7 +14,7 @@ template<
     bool is_blocking = is_thread_safe>
 struct spsc_cursor {
     static_assert(std::has_single_bit(capacity));
-    static_assert(std::atomic<T>::is_always_lock_free);
+    static_assert(!is_thread_safe || std::atomic<T>::is_always_lock_free);
     static_assert(
         is_thread_safe || !is_blocking,
         "a thread-unsafe instance "