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[Qemu-devel] [PATCH] Handle link status in qemu_sendv_packet()
From: |
Mark McLoughlin |
Subject: |
[Qemu-devel] [PATCH] Handle link status in qemu_sendv_packet() |
Date: |
Fri, 16 Jan 2009 10:17:41 +0000 |
If link is down, pretend that the packet has been successfully sent.
Signed-off-by: Mark McLoughlin <address@hidden>
---
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
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