Write a program to copy a file to a destination file using message queues.?

Write a program to copy a file to a destination file using message queues.
The server (writer process) has to split the data in the file appropriately
and send it to the message queue. There should be one writer process which
writes into the message queue and four reader processes which read the
appropriate message from message queue and writes into the destination file.
Use semaphores to synchronize writing into the file by the reader process.

How to handle this problem?
If we use 4 reader process and write into one destination file.... with the same copy of source file?

Here is the algorithm ,

1 . Create a message queue id by using the "msgget".

2 . Then open the source file and copy a line to the message queue buffer then send that to the queue.

3 . Among the four process any one has to lock the file by using the semophore functions.

4. And then the process has the read the queue.And it has to write the current contents of the message queue.

5.After some times it has to release the lock and increment the semaphore value to 1.
6. Using the loop just read every line and the same operations.

First Understand the functions :

msgget
msgsnd
msgctl
msgrcv
semget
semop

:) :) :)

Tanku