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[Qemu-devel] [PATCH 1/4] net: ensure "socket" backend uses non-blocking
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 1/4] net: ensure "socket" backend uses non-blocking fds |
Date: |
Tue, 26 Mar 2013 17:07:49 +0100 |
There are several code paths in net_init_socket() depending on how the
socket is created: file descriptor passing, UDP multicast, TCP, or UDP.
Some of these support both listen and connect.
Not all code paths set the socket to non-blocking. This patch addresses
the file descriptor passing and UDP cases which were missing
socket_set_nonblock(fd) calls.
I considered moving socket_set_nonblock(fd) to a central location but it
turns out the code paths are different enough to require non-blocking at
different places.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
net/socket.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/socket.c b/net/socket.c
index 6c3752b..4a88142 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -674,6 +674,7 @@ static int net_socket_udp_init(NetClientState *peer,
closesocket(fd);
return -1;
}
+ socket_set_nonblock(fd);
s = net_socket_fd_init(peer, model, name, fd, 0);
if (!s) {
@@ -712,6 +713,7 @@ int net_init_socket(const NetClientOptions *opts, const
char *name,
int fd;
fd = monitor_handle_fd_param(cur_mon, sock->fd);
+ socket_set_nonblock(fd);
if (fd == -1 || !net_socket_fd_init(peer, "socket", name, fd, 1)) {
return -1;
}
--
1.8.1.4