From 80b60f23c912c4f1552a7f2dc89d222ac0252261 Mon Sep 17 00:00:00 2001
From: Cloud Wu <cloudwu@gmail.com>
Date: Fri, 23 Oct 2020 19:20:31 +0800
Subject: [PATCH] use CAS to finish set

---
 service-src/service_snlua.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/service-src/service_snlua.c b/service-src/service_snlua.c
index 240aeb7c..3ef4f0e7 100644
--- a/service-src/service_snlua.c
+++ b/service-src/service_snlua.c
@@ -525,8 +525,8 @@ snlua_signal(struct snlua *l, int signal) {
 			if (!ATOM_CAS(&l->trap, 0, 1))
 				return;
 			lua_sethook (l->activeL, signal_hook, LUA_MASKCOUNT, 1);
-			// set finish ( l->trap 1 -> -1 )
-			l->trap = -1;
+			// finish set ( l->trap 1 -> -1 )
+			ATOM_CAS(&l->trap, 1, -1);
 		}
 	} else if (signal == 1) {
 		skynet_error(l->ctx, "Current Memory %.3fK", (float)l->mem / 1024);