udp_send_fec(): Treat ECONNREFUSED like EAGAIN.

Writes to udp sockets may return ECONNREFUSED. As this is often only
a temporary condition, there is no need to kick the target.

This patch makes the udp sender ignore such errors rather than kicking
the client from the udp target list on the first error.

Thanks to Gerrit Renker for suggesting this change.

diff --git a/udp_send.c b/udp_send.c
index efe80b6d68f931d4608106c629540fc7eff0d607..533af63a271f190718c45d8073f988b7971bf338 100644 (file)
--- a/udp_send.c
+++ b/udp_send.c
@@ -237,6 +237,8 @@ static int udp_send_fec(char *buf, size_t len, void *private_data)
        if (ret < 0)
                goto fail;
        ret = send_queued_chunks(ut->fd, ut->cq, 0);
+       if (ret == -ERRNO_TO_PARA_ERROR(ECONNREFUSED))
+               ret = 0;
        if (ret < 0)
                goto fail;
        if (!len)
@@ -247,6 +249,8 @@ static int udp_send_fec(char *buf, size_t len, void *private_data)
                        goto fail;
        }
        ret = write_nonblock(ut->fd, buf, len, 0);
+       if (ret == -ERRNO_TO_PARA_ERROR(ECONNREFUSED))
+               ret = 0;
        if (ret < 0)
                goto fail;
        if (ret != len) {