Hi All,
I am facing a vague issue while trying to make two process talk to each
other using named pipe.
read process
The process which reads, basically creates FIFO using
mkfifo - ret_val = mkfifo(HALF_DUPLEX, 0666)
func.
It then opens the pipe using open func - fd = open (HALF_DUPLEX,O_RDONLY);
After this read function is called - numread = read(fd, test_data, MAX_BUF_SIZE);
Write process
This opens pipe fd = open(HALF_DUPLEX, O_WRONLY);
Then write is done to the pipe - write (fd, 1, 1);
I am finding that even though i am writing a value of 1, it gets
reflected as 255 by read process.
One thing I noticed is that the file descriptor returned for read process
and write process are both different as can be seen by the
program output below
read process - @ 0 NS Created pipe successfully fd = 6
read process - Read fd = 6
write process - Opened pipe for writing only .. fd = 3
write process - New request with data rqst = 1 fd = 3
read process - Received data from test .. ff
Could you please help ..