xiaoxiang781216 commented on a change in pull request #1446:
URL: https://github.com/apache/incubator-nuttx/pull/1446#discussion_r462751927
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File path: net/usrsock/usrsock_recvfrom.c
##########
@@ -418,6 +418,15 @@ ssize_t usrsock_recvfrom(FAR struct socket *psock, FAR
void *buf, size_t len,
*/
outaddrlen = state.valuelen_nontrunc;
+
+ /* If the MSG_PEEK flag is enabled, it will only peek
Review comment:
Ok.
##########
File path: net/usrsock/usrsock_recvfrom.c
##########
@@ -424,6 +424,15 @@ ssize_t usrsock_recvfrom(FAR struct socket *psock, FAR
void *buf, size_t len,
*/
outaddrlen = state.valuelen_nontrunc;
+
+ /* If the MSG_PEEK flag is enabled, it will only peek
+ * from the buffer, so remark the input as ready.
+ */
+
+ if (flags & MSG_PEEK)
+ {
+ conn->flags |= USRSOCK_EVENT_RECVFROM_AVAIL;
Review comment:
should we modify recvfrom_event to skip clear
USRSOCK_EVENT_RECVFROM_AVAIL in the first place?
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