Program for Inter-Process Communication using named pipes || mkfifo

In this lecture on Program for Inter-Process Communication using named pipes, you will learn how to pass messages between two processes using mkfifo.
mkfifo() creates a named pipe which can be used exactly like a file. So, if you know how to read/write in a file this is a convenient method for IPC. The advantage is that this FIFO special file can be used by any process for reading or writing just like a normal file. This means to sender process can use the write() system call to write data into the pipe and the receiver process can use the read() system call to read data from the pipe, hence, completing the communication.
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This lecture is part of the Operating System Lab playlist: • Operating System Lab
For Program code and more details visit: dextutor.com/program-for-ipc-...
Reference Videos:
1. IPC using pipe(): • Program for Inter-Proc...
2. IPC using named pipes: • Program for Inter-Proc...
3. IPC using Shared memory: • Program for Inter-Proc...
4. IPC using message queues: • Program for Inter Proc...
5. IPC using popen: • Program for Inter-Proc...
Tools Required:
1. Linux environment
2. Basic knowledge of C Language
3. gcc compiler installed
Reference Links:
Operating System Theory PPTs Link: dextutor.com/courses/operatin...
Operating System Programs: dextutor.com/courses/operatin...
Other Playlists:
OS: • Operating System
Linux Essential: • Linux Tutorial For Beg...
RHCSA: • RHCSA Exam Full Course
Was this tutorial about Program for Inter-Process Communication using named pipes helpful? If so, please share. Let me know your thoughts in the comments.
#linux #oslab #os #dextutor #ipc

[@aninditasaha0307]

Sir...wonderful lecture..so far i have seen only big and tough progs on this topic..it is the first time here i saw someone explaining this as easily and moreover with such a simple prog which is easy for everyone to understand....great work sir...

[@abuzarmohsin5259]

One of the concise and best lecture upto the mark

[@dextutor]

Thanks

[@daipayanhore3726]

Thank you so much

[@javvajivenkat7302]

Nice explanation Good 👍

[@arjungaming2706]

Best video 😘

[@smartconstructionlab7374]

Thanks for explanation. I am using Linux Apollo server, but when I run your sender and receiver programs, I get this error and the ‘Message’ is not printed. Secondly, when I run sender separately, I get the output output but in mkfifo I should not get the output when i only run the sender process alone. Please let me know if i am making any mistake. Thanks!
./p2 & ./p3
[2] 17806
Reader process 17807 started
Data received by receiver 17807 is:
[1] Exit 35 ./p2
Sender Process 17806 sent the data

[@souldetox9824]

Can you please create a video on how to do this in MQL4? Just a simple send and receive. I want to send information from one EA installed on a MetaTrader 4 'terminal A' to the EA installed on 'terminal B' (Both the terminals are on the same computer.)

[@SanjayKumar-Engineer]

Sir plz make lectures on Message Queue and Shared Memory as well.

[@dextutor]

Next one will be on shared memory

[@aninditasaha0307]

yes that would be of great help for us

[@aninditasaha0307]

shared memory is uploaded ....message queue awaited sir...

[@elijahkorneffel2960]

@@dextutor How would you implement this in Java code? I am attempting to write via c code, and read the same pipe but in a Java file.

[@saikiranreddymannem9903]

can we use named pipes to communicate with parent and child process?

[@dextutor]

Yes

[@rajkumar45das]

Sir if possible then please provide a class about permission.you say that 0777 means you give all permission if we want to change then what kind of number we write? Otherwise if you have any resources then please provide us.
Thank you sir 🙏🙏

[@dextutor]

ruclips.net/video/wKZH-7P7YZE/видео.html

[@ankitpodder9272]

Sir I am facing a problem to create named pipes.
I used "mkfifo fifo1" command to create a named pipe but I got an error message "mkfifo: cannot create fifo 'fifo1': Operation not permitted".
I tried to create a named pipe using program but it didn't work. mkfifo("pipe_name" , 0777) function returned -1.
How can I resolve this?
Thank you in advance.

[@dextutor]

Can you copy paste the exact code and the error.. Which linux distribution are you using?

[@ankitpodder9272]

@@dextutor
Code :
#include
#include
#include
int main()
{
int res;
res = mkfifo("./fifo3", 0777);
printf("Value of res is : %d
",res);
if(res == 0)
printf("Named pipe created
");
else
printf("Pipe isn't created
");
return 0;
}
Output:
ankit@LAPTOP-RM11A289:/mnt/d/SEM/6th/Networking/lab3$ ./createFifo
Value of res is : -1
Pipe isn't created
Linux Distribution : Ubuntu 20.04LTS

[@dextutor]

mkfifo line is wrong... Write mkfifo ("fifo3",0777)..don't write ./fifo3..we use ./ to execute files

[@ankitpodder9272]

@@dextutor It's not working.

[@dextutor]

Share your contact number

[@sandhya1495]

Sir It doesn't pass the "Message" word in the receiver it works like NONBLOCK but it's not can you help me sir?

[@sudchmo744]

I can help you
contact me

[@jayasharma4208]

I have done the same program but no message is printed, can you tell me the reason?

[@dextutor]

Can't help until i see your code

[@nishantbodke838]

@@dextutor same here ...i got blank console

[@dextutor]

Are you executing the 2nd and 3rd program together? If not, then you will not get any output

[@shilpimondaldas4493]

Hppplooo

[@hanna_935]

Hi sir.. can i have your insta id? Please 🙏