Find freelancers. Lose those costly delays.

With 1.7 million freelancers, we'll match you with the perfect talent.

or, Register with Elance »

Large file transfer in chunks with a Socket in C#
Sign in to Add to Watch List

IT & Programming > Other IT & Programming

View Change History

The client has made the following changes to the job.


Job awarded.

Dec 27, 2012

Job Description

  |  Change History >>


  • Posted: Thu, Dec 27, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:

    You are still able to submit a proposal for this job.

    The client prefers freelancers from
    a different location.

    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: Not Sure
  • Fixed Price Job
  • Elance Escrow Protection
  • U.S. freelancers must have W9
Sign in to view client's details

I need some C# code that does the following:

* A TCP client splits a file into chunks and sends the chunks over TCP to a receiver.
* The client must resume sending the chunks of the file IF the connection is disconnected and reconnected. You'll probably need to track and save which chunks were sent/received.
* The receiving application puts the chunks together to make the original file, and does a hashcode check (SHA-1 preferred) to ensure the file is the same as the one sent.
* This must be fast and work with large files (100MB+)
* I should be able to send a file from a client to a receiver by calling a function on some object like so: FileTransfer.Send("C:\Some_Filename", 343 /*port #*/)

I will be inspecting your code, so please include comments and use best coding practices. I will test your application with a 100MB file and disconnect the network and reconnect it to assure it works as required
Added 27 DEC 2012, 16:32 PM...

Sign in or Register to see more

Desired Skills
.NET Framework, TCP/IP, C#, Sockets
Job ID: 36351523
Avg $ | High $ | Low $ — Show Pricing
  • Submit Date (Latest)

 China  |  
I am a software engineer with more than 15 years experiences in secure network design, system analysis, and full lifecycle project management....
 0.0   |  Private   |  0 Jobs
Bid ID: 36355065  |  Submitted: Dec 27, 2012 20:42 ET 
Proposal SEALED

 United States  |  
I am accomplished software Developer/Architect with 20+ years of experience. I am fluent in C/C++/C#/.NET/WCF/XML/JSON/MFC/DevExpress just to...
 4.9   |  Private   |  26 Jobs
Bid ID: 36354014  |  Submitted: Dec 27, 2012 19:17 ET 
Proposal SEALED

I am a seasoned Software Engineer with a graduate degree in Electrical Engineering. My primary competency lies in Embedded Systems, Machine...
 0.0   |  Private   |  0 Jobs
Bid ID: 36352670  |  Submitted: Dec 27, 2012 17:34 ET 
Proposal SEALED

 Serbia  |  
Software solutions and consulting - C++, Win32, C#, VB.NET, WPF, XAML, Surface SUR40, Office.
 5.0   |  Private   |  38 Jobs   |  1 verified credential(s)
Bid ID: 36352452  |  Submitted: Dec 27, 2012 17:17 ET 
Proposal SEALED
Elance is now an Upwork company.
Upwork is the choice of 4M+ clients. Get started working on Upwork today.
Are you ready to post a job like this one?
Post a Similar Job »