Pipe Error Examples

Based on code in _Network Programming with Perl_ by Lincoln D. Stein

All of the four programs
  01_write_ten.pl
  02_write_ten_ph.pl
  03_write_ten_i.pl
  04_write_ten_popi.pl
write ten lines of output to a pipe that is to be read by the 
  read_three.pl
program (which only reads three lines).  None of these programs will be
able to write all ten lines.  Each example is more robust than the previous
one.


01_write_ten.pl
  has little error checking.

02_write_ten_ph.pl
  checks for PIPE signals and stops as soon as it is recieved.

03_write_ten_i.pl
  ignores PIPE signals but checks to see if anything went wrong when
  printing a line.

04_write_ten_popi.pl
  intercepts the PIPE signal (as 02_write_ten_ph.pl did) and decides what
  to do depending on what the real error condition was.

## README ends ##