[PATCH 1/3] ws2_32: Implement a basic synchronous TransmitFile (try 3).
00cpxxx at gmail.com
Mon Oct 12 21:03:21 CDT 2015
On Monday, October 12, 2015, Erich E. Hoover <
erich.e.hoover at wine-staging.com> wrote:
> On Mon, Oct 12, 2015 at 9:16 AM, Erich E. Hoover
> > On Mon, Oct 12, 2015 at 1:25 AM, Alexandre Julliard <julliard at winehq.org
> >>> + /* set reasonable defaults when requested */
> >>> + if (!bytes_per_send)
> >>> + bytes_per_send = 1024;
> >> Is that the Windows default? It doesn't seem very reasonable to me, it
> >> won't even fill a network packet.
> > I don't know, it's not in the documentation. However, if you like I
> > could try to tease it out by doing some tests and running Wireshark on
> > it. I figured that since the default MTU is 1500 bytes that 1024
> > would be a reasonable power of two less than that to use, but if you
> > think that 2^16 is more reasonable then, obviously, we could use that
> > instead.
> Some googling suggests that this value is controlled by
> and that the default is different depending on the Windows version.
> Apparently "normal" versions default to 64512 and server versions
> default to 655360. How would you like this to be approached?
Hi all. What about reading SO_SNDBUF where it is available and 1024 where
it is not. Because I think send() will fail if you try to write more than
the kernel buffer size.
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