Re: [ECOS] TCP/IP Stack packet regrouping

[Grant Edwards <grante@visi.com>]

On Mon, Jul 16, 2001 at 03:44:40PM -0600, Trenton D. Adams wrote:

> I'm reading the Linux documentation on send (), and it says
> that a send () call will block if "the message does not fit
> into the send buffer of the socket".  Which tells me it that it
> is sending the information all at once (from the programmer's
> perspective).  It also says that if it's to big to pass through
> the underlying protocol, it will return with an error of
> EMSGSIZE.  Is this correct or not?

It does appear that a write on a TCP socket under Linux will
block until all of the data is sent -- I tried a single write()
with block sizes up to 16MB, and it blocked until all data was
sent. However, if a signal comes along, the write() gets
interrupted and it returns a partial value.

-- 
Grant Edwards
grante@visi.com