| This project has been viewed 331
times and was posted by jotdev from United States. |
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| Start date : 11 Nov. 2008, 04:45 |
End date :25 Nov. 2008, 04:45 |
There are 0 registered bids. |
| Project number : 267951 |
Project category:Software Languages Java |
| This is the first project that this owner has posted on Freelance Programming. |
Description :
Client/Server System
You have one server and 5 client processes. Server and clients should be on different machines. There are a list of 5 items to be bid from clients.
Initially, each client decides its maximum bid price for all items.
Operations:
• Bidding Initiation: periodically (every minute), each process initiates a bidding procedure for one randomly chosen item by sending item number and price to the server. The offered price can be chosen randomly between 0 and max_price.
• Notification: Upon the receipt of a bidding, the server broadcasts to all processes the bidding item and price.
• Bidding follow-up: Upon the receipt of a notification, a process other than the initiator will decide to compete or give up. If the price is higher than the maximum price initially set for this item, it will give up by keeping silent. Otherwise, it waits for a short random time (0-10 seconds) and follows up by adding the price by 5-20% and sends to the server.
• Bidding conclusion: After notifying all processes, the server starts a timer of 30 seconds. If no new bidding received for the same item, the most recent bidder wins. The server simply sends a congratulation message to the winner.
• Printing: (1) bidding price from any process. (2) which processes have given up. (3) which process wins for which item.
• All processes run continuously for a long time.
• Bonus: GUI (10%).
Example: 5 processes bidding for a book with maximum prices being $40, $50, $60, $65, and $45, respectively.
If process 1 chooses $25, process 2 offers 27.5, process3 offers 31.25, so on. When the price reaches $40 or higher, process 1 will give up. Eventually, process 4 wins.
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Support :
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