Before setting SIG{CHLD} its value is...<br/>
$VAR1 = undef;<br/>
After setting SIG{CHLD} its value is...<br/>
$VAR1 = sub { "DUMMY" };<br/>
After require statement SIG{CHLD} value is...<br/>
$VAR1 = sub { "DUMMY" };<br/>
Calling ping now...<br/>
I AM A SIG{CHLD} handler<br/>
Reading ping stream...<br/>
Reading ping stream...<br/>
Reading ping stream...<br/>
Reading ping stream...<br/>
Reading ping stream...<br/>
Reading ping stream...<br/>
DONE