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comp.lang.ruby

sending files over a network

Pieter Breed

4/1/2006 10:18:00 AM

Hi All,

I am relatively new to Ruby and I am considering using it for a little
itch of my own I want to scratch. It deals with sending files over a
network, but in a one-computer-to-one-computer way, not swarming like
with torrents.

My question is two-fold: What is, in general, the better way of sending
files across a network like this. By better I mean appropriate for
files that may be both very long and very short? Some error checking
also needs to be done so the files don't corrupt. I realise this is not
really ruby specific, but bear with me please.

How would you do/implement this in Ruby? If I was more familiar with
either Ruby or network programming I could probably bootstrap my
knowledge, but it seems I just don't know enough.

Regards,
Pieter Breed
9 Answers

f3l

4/1/2006 5:32:00 PM

0


Pieter Breed wrote:
> Hi All,
>
> I am relatively new to Ruby and I am considering using it for a little
> itch of my own I want to scratch. It deals with sending files over a
> network, but in a one-computer-to-one-computer way, not swarming like
> with torrents.

why not useing ftp?

>
> My question is two-fold: What is, in general, the better way of sending
> files across a network like this. By better I mean appropriate for
> files that may be both very long and very short? Some error checking
> also needs to be done so the files don't corrupt. I realise this is not
> really ruby specific, but bear with me please.
>
> How would you do/implement this in Ruby?

u dont need to, its been done for you before, lots fo times, just find
one implementation that suits your needs, and stick to it.

> If I was more familiar with
> either Ruby or network programming I could probably bootstrap my
> knowledge, but it seems I just don't know enough.
>
> Regards,
> Pieter Breed

Pieter Breed

4/1/2006 10:12:00 PM

0

Uhm, thanks... I didn't think of that...

actually I really meant to ask what I asked in the first place... Sorry
for being bitchy, but I your answer was kind of silly.

Pieter

Ara.T.Howard

4/1/2006 10:31:00 PM

0

Konstantin Levinski

4/2/2006 3:54:00 PM

0

If you know how to work with files, and how to set up connections
(TCPServer/TCPSocket) you know enough to send a file over network with
Ruby. Performance will be network-limited, so don't worry too much
about it.

You can use MD5/SHA1 for additional error checking, for error checking,
tough TCP has this feature on its own.

pseudocode ( as in - not tested but with a couple of fixes should
probably work )

- sender:
name="file.txt"; len = File.new(name).stat.size.to_s
socket = TCPSocket.new('remote.host.org', 6666)
socket.puts name
socket.pits.len
socket.write File.read(name)
socket.close

- reciever:
socket = TCPServer.new('0.0.0.0', 6666).accept
name = socket.gets
len = socket.gets
File.open(name, "wb") { | fl | fl.write (socket.read len.to_i ) }
socket.close
---

HTH

Pieter Breed

4/2/2006 8:11:00 PM

0

Thanks Konstantin, that is really helpful and I will give it a bash

Regards,
Pieter

Konstantin Levinski

4/3/2006 9:09:00 AM

0

btw, depending on your requirements you might want to have a look at
http://rio.ruby... -
it gives IO, File, Dir and sevral others a simple consistent interface
- in case you want to work with directories and files and a lot

Douglas Mcneely

2/13/2013 10:48:00 PM

0

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E-mail: hummel@world.std.com
Possible Fag Butt-Buddy: Arnold D Thomas (Age 52)

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700 Boylston Street
Boston, Massachusetts 02116
(617) 536-5400
(617) 536-3813 Fax
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[][][][][][]


The DemocRAT Hall Of Shame http://www.democrathallof... asks
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[Courtesy of Buster Norris]

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Posted from:
The DemocRATs Hall of Shame!
http://www.democrathallof...

tomservo56954

2/14/2013 1:51:00 AM

0

On Tuesday, February 12, 2013 6:55:34 PM UTC-5, Tom Sr. wrote:
> On Feb 12, 6:48 pm, Tracey12 <tracey12em...@gmail.com> wrote:
>
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>
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>
>
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>
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>
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Aida Trinidad Christensen

2/14/2013 11:23:00 PM

0

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Note that when you reply to a Proven Liar you encourage them to
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Diane M Roselles (52+)
4215 Cedar Ridge Pl, Apt 42
Rapid City, SD 57702-3190
(605) 341-2445

[][][][][][]
The DemocRAT Hall Of Shame http://www.democrathallof... asks
"Why do you always LIE?"

[Courtesy of Buster Norris]

On Fri, 01 Feb 2013 10:35:31 -0700, Yoorghis@Jurgis.net wrote:
>By 2009---60,000,000 w/o Health care

LIAR!!!!!!!!!!!!!!!!!!!!!!!!

32.8 million (10.9%) had been uninsured for more than a year at the
time of interview.
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Posted from:
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http://www.democrathallof...