From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LNllq-00013t-Mm for qemu-devel@nongnu.org; Fri, 16 Jan 2009 05:17:46 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LNllo-00012u-W4 for qemu-devel@nongnu.org; Fri, 16 Jan 2009 05:17:46 -0500 Received: from [199.232.76.173] (port=59986 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LNllo-00012i-NT for qemu-devel@nongnu.org; Fri, 16 Jan 2009 05:17:44 -0500 Received: from mail10.svc.cra.dublin.eircom.net ([159.134.118.26]:36114) by monty-python.gnu.org with smtp (Exim 4.60) (envelope-from ) id 1LNllo-0001Ki-FM for qemu-devel@nongnu.org; Fri, 16 Jan 2009 05:17:44 -0500 From: Mark McLoughlin Date: Fri, 16 Jan 2009 10:17:41 +0000 Message-Id: <1232101061-21414-1-git-send-email-markmc@redhat.com> Subject: [Qemu-devel] [PATCH] Handle link status in qemu_sendv_packet() Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: Mark McLoughlin , qemu-devel@nongnu.org If link is down, pretend that the packet has been successfully sent. Signed-off-by: Mark McLoughlin --- net.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/net.c b/net.c index 86ee7d5..8d9b3de 100644 --- a/net.c +++ b/net.c @@ -421,6 +421,16 @@ static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, return offset; } +static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) +{ + size_t offset = 0; + int i; + + for (i = 0; i < iovcnt; i++) + offset += iov[i].iov_len; + return offset; +} + ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, int iovcnt) { @@ -428,12 +438,17 @@ ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, VLANClientState *vc; ssize_t max_len = 0; + if (vc1->link_down) + return calc_iov_length(iov, iovcnt); + for (vc = vlan->first_client; vc != NULL; vc = vc->next) { ssize_t len = 0; if (vc == vc1) continue; + if (vc->link_down) + len = calc_iov_length(iov, iovcnt); if (vc->fd_readv) len = vc->fd_readv(vc->opaque, iov, iovcnt); else if (vc->fd_read) -- 1.6.0.6