[ECOS] TCP stack order question (eCos + 802.11)

[ECOS] TCP stack order question (eCos + 802.11)

[Trenton D. Adams]

Doesn't the TCP/IP standard insure that a computer receives items in the
same order they were sent at the application level?

Take for instance if I sent 4 buffers of 200 bytes each.  Those buffers
should arrive on the other end of the TCP connection in the same order I
sent them as far as the socket programmer is concerned right?  PLEASE
say yes! :)

I'm looking through some RFCs, but I'm not even sure if I'm looking at
the right ones.  Right now I'm looking at rfc2126.txt

Trenton D. Adams
Extreme Engineering
#17, 6025 - 12 St. SE
Calgary, Alberta, Canada
T2H 2K1

Phone: 403 640 9494 ext-208
Fax: 403 640 9599

http://www.extremeeng.com

Re: [ECOS] TCP stack order question (eCos + 802.11)

[Grant Edwards]

On Mon, Aug 13, 2001 at 04:21:38PM -0600, Trenton D. Adams wrote:

> Doesn't the TCP/IP standard insure that a computer receives
> items in the same order they were sent at the application
> level?

Yes.

> Take for instance if I sent 4 buffers of 200 bytes each.  Those
> buffers should arrive on the other end of the TCP connection in
> the same order I sent them as far as the socket programmer is
> concerned right?  PLEASE say yes! :)

The bytes arrive in the same order you sent them.  They might
not arrive as "4 buffers", and if you depend on that behavior
your software will someday break.  ;)

> I'm looking through some RFCs, but I'm not even sure if I'm
> looking at the right ones.  Right now I'm looking at
> rfc2126.txt

-- 
Grant Edwards
grante@visi.com

RE: [ECOS] TCP stack order question (eCos + 802.11)

[Trenton D. Adams]

Actually, I was just thinking of receiving a maximum of my buffer size,
and then receiving the next bit of data up to the maximum of that buffer
size again until I've got all the buffers.  That shouldn't cause a
problem right?

-----Original Message-----
From: ecos-discuss-owner@sources.redhat.com
[ mailto:ecos-discuss-owner@sources.redhat.com ] On Behalf Of Grant
Edwards
Sent: Monday, August 13, 2001 4:27 PM
To: Trenton D. Adams
Cc: 'eCos Disuss'
Subject: Re: [ECOS] TCP stack order question (eCos + 802.11)


On Mon, Aug 13, 2001 at 04:21:38PM -0600, Trenton D. Adams wrote:

> Doesn't the TCP/IP standard insure that a computer receives
> items in the same order they were sent at the application
> level?

Yes.

> Take for instance if I sent 4 buffers of 200 bytes each.  Those
> buffers should arrive on the other end of the TCP connection in
> the same order I sent them as far as the socket programmer is
> concerned right?  PLEASE say yes! :)

The bytes arrive in the same order you sent them.  They might
not arrive as "4 buffers", and if you depend on that behavior
your software will someday break.  ;)

> I'm looking through some RFCs, but I'm not even sure if I'm
> looking at the right ones.  Right now I'm looking at
> rfc2126.txt

-- 
Grant Edwards
grante@visi.com

Re: [ECOS] TCP stack order question (eCos + 802.11)

[Grant Edwards]

On Mon, Aug 13, 2001 at 04:30:55PM -0600, Trenton D. Adams wrote:

> Actually, I was just thinking of receiving a maximum of my buffer size,
> and then receiving the next bit of data up to the maximum of that buffer
> size again until I've got all the buffers.  That shouldn't cause a
> problem right?

That should work.  

-- 
Grant Edwards
grante@visi.com