From b37eb61864e0f54aff78ac11d20828cb57278753 Mon Sep 17 00:00:00 2001
From: wu-changsheng <[email protected]>
Date: Sat, 12 Nov 2022 14:42:56 +0800
Subject: [PATCH 10/20] fix epoll_wait return when timeout is 0

---
 src/lstack/api/lstack_epoll.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/lstack/api/lstack_epoll.c b/src/lstack/api/lstack_epoll.c
index 6979e12..20ed224 100644
--- a/src/lstack/api/lstack_epoll.c
+++ b/src/lstack/api/lstack_epoll.c
@@ -453,6 +453,10 @@ int32_t lstack_epoll_wait(int32_t epfd, struct epoll_event* events, int32_t maxe
             return lwip_num + kernel_num;
         }
 
+        if (timeout == 0) {
+            return 0;
+        }
+
         if (timeout < 0) {
             ret = pthread_mutex_lock(&wakeup->wait);
         } else {
@@ -654,6 +658,10 @@ int32_t lstack_poll(struct pollfd *fds, nfds_t nfds, int32_t timeout)
             return lwip_num + kernel_num;
         }
 
+        if (timeout == 0) {
+            return 0;
+        }
+
         if (timeout < 0) {
             ret = pthread_mutex_lock(&wakeup->wait);
         } else {
-- 
2.23.0