Inter Process Communication FIFO java

Question

Hi I'm trying to Implement a IPC in Java with FIFO I cretaed a FIFO with with

mkfifo temp

then I tried to open and FileWriter with

BufferedWriter writeStream = new BufferedWriter(new FileWriter(writePipePath));

but it blocks at this line.

Any idea what the problem could be?

Answer 1

As you can read in the mkfifo manual page , opening a fifo will block until both sides are open. FileWriter opens the named pipe synchronously - ie, it will not return until the pipe is also opened for reading, by another process or another thread.