From 9741f6acc68abf3dd5dfd142db850f1f8f67e887 Mon Sep 17 00:00:00 2001
From: compile_success <980965867@qq.com>
Date: Sat, 2 Nov 2024 10:47:34 +0000
Subject: [PATCH] fix udp bufs is not enough

---
 examples/src/bussiness.c      | 4 ++--
 src/lstack/core/lstack_lwip.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/src/bussiness.c b/examples/src/bussiness.c
index 46c99fe..9c5f8c2 100644
--- a/examples/src/bussiness.c
+++ b/examples/src/bussiness.c
@@ -203,7 +203,7 @@ static int32_t server_ans_write(int32_t socket_fd, struct ServerBaseCfgInfo *ser
         if (nwrite == 0) {
             return PROGRAM_ABORT;
         } else if (nwrite < 0) {
-            if (errno != EINTR && errno != EWOULDBLOCK && errno != EAGAIN) {
+            if (errno != EINTR && errno != EWOULDBLOCK && errno != EAGAIN && errno != ENOBUFS) {
                 PRINT_ERROR("nwrite =%d, errno=%d", nwrite, errno);
                 return PROGRAM_FAULT;
             }
@@ -328,7 +328,7 @@ int32_t client_ask(struct ClientHandler *client_handler, struct ClientUnit *clie
         if (nwrite == 0) {
             return PROGRAM_ABORT;
         } else if (nwrite < 0) {
-             if (errno != EINTR && errno != EWOULDBLOCK && errno != EAGAIN) {
+             if (errno != EINTR && errno != EWOULDBLOCK && errno != EAGAIN && errno != ENOBUFS) {
                 return PROGRAM_FAULT;
              }
         } else {
diff --git a/src/lstack/core/lstack_lwip.c b/src/lstack/core/lstack_lwip.c
index bb261d2..1a6f9b2 100644
--- a/src/lstack/core/lstack_lwip.c
+++ b/src/lstack/core/lstack_lwip.c
@@ -525,7 +525,7 @@ static ssize_t do_lwip_udp_fill_sendring(struct lwip_sock *sock, const void *buf
     if (write_avail < write_num) {
         LSTACK_LOG(WARNING, LSTACK, "sock send_ring is already exhausted.\n");
         sem_timedwait_nsecs(&sock->snd_ring_sem);
-        GAZELLE_RETURN(ENOMEM);
+        GAZELLE_RETURN(ENOBUFS);
     }
 
     send_len = app_buff_write(sock, (char *)buf, len, write_num, addr, addrlen);
-- 
Gitee