Even I did the same and so we would like to make sure we conclude that its an original contribution.

See to understand the program first u need to have an idea of shared memory.

Shared memory comes under Inter-Process Communication.

Shared memory is the fastest of all IPC.

Shared memory comes under System V IPC.

SHARED MEMORY:

Shared memory is one of the three System V IPC.

It allows two unrelated processes to access the same logical memory.

Shared memory is a very efficient way of transferring data between two running processes.


In the program i have used these functions.

shmget and shmat for shared memory.

shmget is used to create shared memory.

shmat is used to attach the shared memory to the address space of the process.

When we come to the program,i have created two process i.e process-1 and process-2.

process-1 and process-2 uses same memory i.e shared memory.

I have created a single bit shared memory to control the two process not to access the shared memory at a time.

When process-1 uses the shared memory then process-2 waits until process-1 completes its work and wise versa .

Run the two process at a time (i.e in two terminals ) and u will observe that When process-1 uses the shared memory then process-2 waits until process-1 completes its work and wise versa .

Okay!!! Thanks man...

Leave it bashamsc !!! your effort is really apprecited. Now please dont make issue more. That article should be nominated!!! Finallllll

Voting for article of the month for January 2008

its complex

what is this problem of copy

good one

see this blog www.sharedmemoryprogram.blogspot.com

Winner of the month for January 2008