From 97641d17e754daf5bc2745ebd2d311b5dbf89d05 Mon Sep 17 00:00:00 2001 From: jiangheng12 Date: Fri, 10 Mar 2023 17:39:03 +0800 Subject: [PATCH] send should return -1, errno EAGAIN when ring full --- src/lstack/core/lstack_lwip.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/lstack/core/lstack_lwip.c b/src/lstack/core/lstack_lwip.c index baaa18b..b9f97e0 100644 --- a/src/lstack/core/lstack_lwip.c +++ b/src/lstack/core/lstack_lwip.c @@ -507,7 +507,8 @@ ssize_t write_stack_data(struct lwip_sock *sock, const void *buf, size_t len) if (sock->remain_len) { send_len = merge_data_lastpbuf(sock, (char *)buf, len); if (send_len >= len) { - return len; + send_len = len; + goto END; } } @@ -531,7 +532,7 @@ ssize_t write_stack_data(struct lwip_sock *sock, const void *buf, size_t len) } } sock->remain_len = 0; - return send_len; + goto END; } /* send_ring have idle */ @@ -545,6 +546,11 @@ ssize_t write_stack_data(struct lwip_sock *sock, const void *buf, size_t len) del_data_out_event(sock); } +END: + if (send_len == 0) { + errno = EAGAIN; + return -1; + } return send_len; } -- 2.33.0