[Twisted-Python] Sending jpeg data over TCP/IP

[gary clark]

The correct way I think is to use base64 and just one connection after more research. Good to research.

Thanks,
Garyc

--- On Sun, 2/14/10, gary clark <burslem2001 at yahoo.com> wrote:

> From: gary clark <burslem2001 at yahoo.com>
> Subject: Re: [Twisted-Python] Sending jpeg data over TCP/IP
> To: "Twisted general discussion" <twisted-python at twistedmatrix.com>
> Date: Sunday, February 14, 2010, 12:18 PM
> 
> hey Alexandra,
> 
> The only reason why I suggested another server would be to
> distribute the
> load on the system. Essentially the files that are intended
> to be sent over will consume alot of processing since .jpeg
> etc are humongous.
> Yes two connections would be required. Well you could use
> the MD5 sum, I will not, essentially your after a unique
> identifier that represents the file your sending. What I
> intend to do is simply embed the filename and unique
> identifier as a header. Hence I do not not need to recompute
> the MD5 at the receiving end, which to be honest seems
> overkill. 
> 
> Anyway good luck. KISS for software is the best approach.
> 
> Thanks,
> Garyc
> 
> 
> --- On Sun, 2/14/10, Alexandre Quessy <alexandre at quessy.net>
> wrote:
> 
> > From: Alexandre Quessy <alexandre at quessy.net>
> > Subject: Re: [Twisted-Python] Sending jpeg data over
> TCP/IP
> > To: "Twisted general discussion" <twisted-python at twistedmatrix.com>
> > Date: Sunday, February 14, 2010, 11:10 AM
> > Hello again everyone,
> > Maybe using two senders/receivers would help. The
> control
> > protocol,
> > which can use XML or JSON, or whatever, would identify
> the
> > files by
> > their md5 sum? The file transfert protocol would
> detect the
> > header of
> > each file to separate them.
> > 
> > a
> > 
> > gary clark wrote:
> > > There are probably several way to accomplish this
> I
> > just needed to think about it a wee bit longer. One
> way
> > would be to prepend an identifier to the file,strip
> the
> > header from the raw data on reception and then save
> the
> > image. I dont think its complicated. I may need a
> seperate
> > server to handle the files though.
> > > 
> > > Thanks,
> > > Garyc
> > > 
> > > --- On Sat, 2/13/10, Maarten ter Huurne <maarten at treewalker.org>
> > wrote:
> > > 
> > >> From: Maarten ter Huurne <maarten at treewalker.org>
> > >> Subject: Re: [Twisted-Python] Sending jpeg
> data
> > over TCP/IP
> > >> To: "Twisted general discussion" <twisted-python at twistedmatrix.com>
> > >> Date: Saturday, February 13, 2010, 6:07 PM
> > >> On Sunday 14 February 2010, Alexandre
> > >> Quessy wrote:
> > >>
> > >>> This said, sending them using a
> programmer's
> > solution
> > >> - not a sysadmin
> > >>> solution - would be closer to my own
> skills,
> > so I am
> > >> interested in
> > >>> knowing if this could be suitable. I
> think,
> > though,
> > >> that it would be
> > >>> faster to use a transfert protocol that
> would
> > be
> > >> implemented in C, not
> > >>> Python. Am I wrong?
> > >> I would suggest to implement it in Python
> first
> > and then
> > >> benchmark it. Maybe 
> > >> the simplest implementation is already fast
> > enough. Maybe
> > >> the bottleneck is 
> > >> the network or the disk you're writing to; in
> that
> > case you
> > >> would be better 
> > >> off upgrading your switches or buying an SSD
> > instead of
> > >> writing C code.
> > >>
> > >> Bye,
> > >>         Maarten
> > >>
> > >>
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