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tcp.h: add TCP_CORK definition
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TCP_CORK and TCP_NODELAY behave almost exactly the opposite,
so first provide simple support for TCP_CORK.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit is contained in:
zhanghongyu
2025-01-14 15:19:00 +08:00
committed by Xiang Xiao
parent 60dc94b909
commit 9869181761
3 changed files with 8 additions and 3 deletions
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include/netinet/tcp.h
+1
View File
@@ -57,5 +57,6 @@
#define TCP_KEEPCNT (__SO_PROTOCOL + 3) /* Number of keepalives before death
* Argument: max retry count */
#define TCP_MAXSEG (__SO_PROTOCOL + 4) /* The maximum segment size */
#define TCP_CORK (__SO_PROTOCOL + 5) /* Coalescing of small segments */
#endif /* __INCLUDE_NETINET_TCP_H */
net/tcp/tcp_getsockopt.c
+2 -1
View File
@@ -204,6 +204,7 @@ int tcp_getsockopt(FAR struct socket *psock, int option,
#endif /* CONFIG_NET_TCP_KEEPALIVE */
case TCP_NODELAY: /* Avoid coalescing of small segments. */
case TCP_CORK: /* coalescing of small segments. */
if (*value_len < sizeof(int))
{
ret = -EINVAL;
@@ -214,7 +215,7 @@ int tcp_getsockopt(FAR struct socket *psock, int option,
/* Always true here since we do not support Nagle. */
*nodelay = 1;
*nodelay = option == TCP_NODELAY ? 1 : 0;
*value_len = sizeof(int);
ret = OK;
}
net/tcp/tcp_setsockopt.c
+5 -2
View File
@@ -216,6 +216,7 @@ int tcp_setsockopt(FAR struct socket *psock, int option,
#endif /* CONFIG_NET_TCP_KEEPALIVE */
case TCP_NODELAY: /* Avoid coalescing of small segments. */
case TCP_CORK: /* coalescing of small segments. */
if (value_len != sizeof(int))
{
ret = -EDOM;
@@ -224,9 +225,11 @@ int tcp_setsockopt(FAR struct socket *psock, int option,
{
int nodelay = *(FAR int *)value;
if (!nodelay)
if ((!nodelay && option == TCP_NODELAY) ||
(nodelay && option == TCP_CORK))
{
nerr("ERROR: TCP_NODELAY not supported\n");
nerr("ERROR: %s not supported\n",
option == TCP_NODELAY ? "TCP_NODELAY" : "TCP_CORK");
ret = -ENOSYS;
}
}