Aksal/nuttx
3
1
Fork 1
mirror of https://github.com/apache/nuttx.git synced 2026-09-01 22:53:01 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

net/local:Add support for MSG_DONTWAIT to SOCK_STREAM

Browse source 
Signed-off-by: wangyingdong <wangyingdong@xiaomi.com>
This commit is contained in:
wangyingdong 2023-08-01 19:40:28 +08:00 • committed by Xiang Xiao
parent 0b2b5b781c
commit 032a456c83
1 changed files with 19 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

19
net/local/local_recvmsg.c
View file

@ -224,6 +224,25 @@ psock_stream_recvfrom(FAR struct socket *psock, FAR void *buf, size_t len,
return -ENOTCONN;
}
/* If it is non-blocking mode, the data in fifo is 0 and
* returns directly
*/
if (flags & MSG_DONTWAIT)
{
int data_len = 0;
ret = file_ioctl(&conn->lc_infile, FIONREAD, &data_len);
if (ret < 0)
{
return ret;
}
if (data_len == 0)
{
return -EAGAIN;
}
}
/* Read the packet */
ret = psock_fifo_read(psock, buf, &readlen, true);