Project created for passing Operating Systems subject in
High School of Information Technology


Example usages
--------------

Without bootstrap program
=========================

In separate terminals enter:
$ ./bin/process1
$ ./bin/process2
$ ./bin/process3

After that in terminal with process1 running enter some characters followed by
new line (ENTER).

- Process1 displays information about data buffer and how many bytes has been
  sent to process2.
- Process2 displays information about received bytes, prints to stderr info
  about number of characters in buffer, and sent this value to process3.
- Process3 displays information about number of entered characters.

With bootstrap program
======================

In terminal, go to the ./bin directory (where compiled programs resides).
Execute:
$ ./bootstrap

After that there should be shown info about spawning new processess.
You can now pass to the standard input of the first spawned process data, .e.g:
$ echo "qwertyuiop" > /proc/(process 0 pid)/fd/3

If process creation was completed without errors, you should see following output:
[process2] Fetched: 11 bytes
[process2] Calculated: 10 characters. Sending...
[process3] Fetched: 4 bytes
[process3] Process2 send: 10