Show Bid Request
.NET Serial UDP class
Bid Request Id: 48123
|
|
|
|
Posted by: |
Shane Krueger (4 ratings)
(Software buyer rating 10 )
|
|
Non-action Ratio: |
Very Good - 14.29%
|
Buyer Security Verifications: |
Good
|
|
Approved on: |
Feb 13, 2003
12:13:27 PM EDT
|
|
Bidding Closes: |
Feb 27, 2003
11:50:19 AM EDT
|
|
Viewed (by coders): |
97 times
|
|
Deadline: |
3/19/2003
TIME EXPIRED
|
|
|
|
|
Description:
I need a SerialUDPClient and SerialUDPListener class that functions exactly like the TCPClient / TCPListener classes, with the following exceptions:
(1) Data is transmitted via UDP channels and not TCP channels.
(2) Received data will automatically be reordered into proper sequence, with ACK messages and auto-retry for failed messages (just like TCP data).
(3) Sent data will be broken to fit within proper UDP packet sizes, and contain proper ID and checksum fields to reconstruct data at receipient. Maximum packet size will be an option: static or dynamic (dynamic should expand to 32k packets when using a LAN)
(4) Any number SerialUDPClient classes and a single SerialUDPListener class can operate on a single UDP channel. Maybe another class to handle the received UDP messages will be necessary (to broadcast them to the currently opened classes). When all UDP classes using a single port have been closed (using the Close or Dispose method), all remaining socket resources must be released.
(5) Classes must close (like TCP) if data cannot be sent after a given timeout period (just like TCP).
(6) Classes must support synchronous receive with timeout, similar to TCP, without using any CPU resources while waiting for data.
(7) Classes must fully support multithreading, allowing for data to be sent while another thread is waiting for data to be received.
(8) Code must be written in 100% VB.NET using .NET socket classes. (No Windows API calls unless absolutely necessary).
(9) Sample app must be included of a program that transmits a file over the internet to a listening program using these classes. (No fancy interface necessary). App must be able to submit multiple files at once on the same UDP channel, and listening app must automatically save each received file into a directory.
Prerequisites:
- Must have extensive knowledge of UDP and TCP data construction.
Deliverables:
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Complete ownership and distribution copyrights to all work purchased.
Platform:
VB.NET, Windows 98+ (98,Me,2000,XP)
Must be 100% finished and received by buyer on:
Mar 19, 2003 EDT
Deadline legal notes: All times are expressed in the time zone of the site EDT (UT - 5). If the buyer omitted a time, then the deadline is 11:59:59 PM EDT on the indicated date.
Remember that contacting the other party outside of the site (by email, phone, etc.) on all business projects < $500 (before the buyer's money is escrowed) is a violation of both the software buyer and seller agreements.
We monitor all site activity for such violations and can instantly expel transgressers on the spot, so we thank you in advance for your cooperation.
If you notice a violation please help out the site and report it. Thanks for your help.
|
|
|
Bidding/Comments:
|
All monetary amounts on the site are in United States dollars.
Rent a Coder is a closed auction, so coders can only see their own bids and comments. Buyers can view every posting made on their bid requests. |
See all rejected bids (and all comments)
| Name |
Bid Amount
|
Date |
Coder Rating |
|
|
This bid was accepted by the buyer!
|
$100 (USD)
|
Feb 17, 2003
9:08:10 PM EDT
|
5
(Average)
|
|
|
I have extensive experience with VB.NET socket class. All the requirement can be done within one week. Additional week will be spent on testing the multithreading performance on the UPD server side.
|
|
|
|
|
|
|