Dear friends,
I have to write 3 programms A, B and C (using pipe or socket)

The program A should receive data from B continously and send them to C.
I need some relative sample code in c.
Can anybody help me ?

This should be a good resource:

http://www.makelinux.net/alp/

1 members found this post helpful.

Read the "Question Guidelines" in my posting signature. Putting "C program send data pipe" into Google pulls up 1.3 MILLION results...the first two have samples. Putting "c program send data socket" pulls up 1.5 million....again, with samples.

Do basic research on your own first, before posting a question like this. We're happy to help you, but don't (essentially) ask people to look up things for you. And since you've now been working with C socket programming for FOUR YEARS:
http://www.linuxquestions.org/questi...et-4175425361/

...it's hard to believe you've made no progress on your own in that time.

1 members found this post helpful.

Also, since this is undoubtedly homework, do not leave your instructor out of the loop! That's what s/he is being paid to do ... with your tuition!

"Pipes" are a marvelous invention of Unix/Linux which, in their simplest form, are simply "a file." Or, to the program(s) in question, they appear to be! But pipes synchronize the activity of the readers and writers. Readers wait if the pipe becomes empty; writers wait if the pipe becomes full. Neither of them has to even know that they are reading or writing to "a pipe."

You use pipes unconsciously whenever you use the "| character in a shell command. The character is called "pipe," and we talk of "piping [the output of] one program to [the input of] another," and, whenever we do that, "that's exactly what we are doing ... using pipes."

Now, if you're still befuddled ... get with your instructor! Ask questions. You'll be doing a service to your fellow classmates who are also "befuddled, and afraid to ask."

Prior effort on my part, a lot of duplication and editing on your part to copy and then modify the architecture to do what you want, but check my blog entries. There are examples of pipe architecture written in the C language.