To run the demo, first install go. Then:
./run.sh
There are three executables found in the cmd directory:
- master
- reader
- writer
master creates one writer child process and n reader child processes. For each child, stdout and stderr are piped to master's stdout for visibility.
In addition to the child processes, master also creates n named pipes, one for each reader, using the mkfifo system call.
For more info on mkfifo: https://linux.die.net/man/3/mkfifo
master passes the name of each named pipe to the respective reader process. It passes the name of all named pipes to the writer process.
writer proceeds to write to each of the named pipes in parallel. It simply writes increasing integers to 10. It could write any byte stream to the named pipe.
Each reader process simply reads from it's respective named pipe and writes the output to stdout.