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Re: [Qemu-devel] [PATCH] qemu-char: (Re-)connect for tcp_chr_write() unc


From: Lei Li
Subject: Re: [Qemu-devel] [PATCH] qemu-char: (Re-)connect for tcp_chr_write() unconnected writing
Date: Mon, 06 Aug 2012 18:54:07 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120717 Thunderbird/14.0

Ping?

On 07/20/2012 07:09 AM, Anthony Liguori wrote:

Lei Li <address@hidden> writes:
tcp_chr_write() did not deal with writing to an unconnected
connection and return the original length of the data, it's
not right and would cause false writing. So (re-)connect it
and return 0 for this situation.

Signed-off-by: Lei Li <address@hidden>
Looks good.

Reviewed-by: Anthony Liguori <address@hidden>

Regards,

Anthony Liguori

---
  qemu-char.c |    7 +++++--
  1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/qemu-char.c b/qemu-char.c
index c2aaaee..25eaeeb 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2141,14 +2141,17 @@ typedef struct {
static void tcp_chr_accept(void *opaque); +static void tcp_chr_connect(void *opaque);
+
  static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
  {
      TCPCharDriver *s = chr->opaque;
      if (s->connected) {
          return send_all(s->fd, buf, len);
      } else {
-        /* XXX: indicate an error ? */
-        return len;
+        /* (Re-)connect for unconnected writing */
+        tcp_chr_connect(chr);
+        return 0;
      }
  }
--
1.7.7.6


--
Lei




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