perl Not a HASH reference - perl

Question

Greeting community.
This is related to Odd number of elements in hash assignment with default
However, I use the reference as suggested but now I am passing a hash and a file handler and it gives this error Not a HASH reference when I call
hash2file2(\%m2,$rm3d_fh);
Heres my code.
#!/usr/bin/perl
use strict;
use warnings;
use Getopt::Long;
use POSIX qw(strftime);
#getDate return date in string format 20161010
sub getDate{
my $date = strftime "%Y%m%d", localtime;
#print $date;
return $date;
}
#end getDate
#
#file2hash : read the file in k<file_name> e.g.=kconfig & kmem into hash table
#
sub file2hash {
my ($file) = #_;
open(my $data, '<', $file) or die "Could not open '$file' $!\n";
my %HoH;
my $key;
my $value;
my $who;
my $rec;
my $field;
#while ( my $line = <$data>) {
while ( <$data>) {
#print $line;
next unless (s/^(.*?):\s*//);
$who = $1;
#print $who;
$rec = {};
$HoH{$who} = $rec;
for $field ( split ) {
($key, $value) = split /=/, $field;
$rec->{$key} = $value;
}
}
return %HoH;
}
#
#end file2hash
#
#
#hash2print
#print out hash table in k<file_name> format
#
sub hash2print{
(my %HoH,my $debug) = #_;
#my ($debug)=#_||0;
#my %HoH = shift;
#my $debug = shift || 0;
my $family;
my $role;
for $family ( keys %HoH ) {
#print "$family\n";
for $role ( keys %{ $HoH{$family} } ) {
if ($debug){
print "family:$family\n";
print "role: $role\n";
}
print "$role=$HoH{$family}{$role}";
}
print "\n";
}
}
#
#end hash2print
#
#
#hash2file2
#print out hash table in k<file_name> format
#
sub hash2file2{
#(my %HoH,my $debug) = #_;
(my %HoH,my $fh) = #_;
#my %HoH = shift;
#my $fh = shift;
#my $debug = shift ||0;
my $family;
my $role;
for $family ( keys %HoH ) {
#print "$family\n";
for $role ( keys %{ $HoH{$family} } ) {
#if ($debug){
# print $fh "family:$family\n";
# print $fh "role: $role\n";
#}
print $fh "$role=$HoH{$family}{$role}";
}
print $fh "\n";
}
close $fh;
}
#
#end hash2file2
#
sub dispatch{
my $event= shift;
my $debug = shift||0;
my $mail_prog = shift || "mailx";
my $config_f = shift || "kconfig";
my $memory_f = shift || "kmem";
my %h2=&file2hash($config_f);
my %m2=file2hash($memory_f);
my $today=&getDate();
if ($debug){
print "$today\n";
print "$event\n";
print "$config_f\n";
print "$memory_f\n";
print "$mail_prog\n";
}
my $email1_tag="email1";
my $email1_cnt_tag="email1_cnt";
my $email2_tag="email2";
my $xemail1 = $h2{$event}{$email1_tag};
my $xemail2 = $h2{$event}{$email2_tag};
my $xemail1_cnt = $h2{$event}{$email1_cnt_tag};
#initialize today_event_cnt is not happened today
my $today_event_cnt = $m2{$today}{$event}||1;
if ($today_event_cnt == 1){
$m2{$today}{$event} = 1;
}
if ($debug){
print "$xemail1\n";
print "$xemail2\n";
print "$xemail1_cnt\n";
print "$today_event_cnt\n";
}
my $mail1_cmd_str = $mail_prog." -s ".$event." ".$xemail1;
my $mail2_cmd_str = $mail_prog." -s ".$event." ".$xemail2;
if ($today_event_cnt + 1 >$xemail1_cnt){
system "$mail2_cmd_str";
}else{
system "$mail1_cmd_str";
}
#hash2print(\%m2);
open my $rm3d_fh, '>', $memory_f or die "...$!";
hash2file2(\%m2,$rm3d_fh);
}#end dispatch
#my %h2=&file2hash("kconfig");
#my %m2=&file2hash("kmem");
#hash2print(%h2);
#hash2print(%m2);
#print &getDate();
#my $xcnt= &dispatch("event_c3_z2");
&dispatch("event_c3_z2",1,"echo");
#&dispatch("event_c3_z2",1);
#print $xcnt;
my test data file1
event_a1_x1: email1=ackee0000#gmail.com email2=kym018#gmail.com email1_cnt=8
event_a1_x2: email1=ackee0000#gmail.com email2=kym018#gmail.com email1_cnt=7
event_b2_y1: email1=ackee0000#gmail.com email2=kym018#gmail.com email1_cnt=6
event_b2_y2: email1=ackee0000#gmail.com email2=kym018#gmail.com email1_cnt=5
event_c3_z1: email1=ackee0000#gmail.com email2=kym018#gmail.com email1_cnt=4
event_c3_z2: email1=ackee0000#gmail.com email2=kym018#gmail.com email1_cnt=3
test data file2
20160926: event_a1_x1=7
20160926: event_a1_x2=6
20160926: event_b2_y1=5
20160926: event_b2_y2=4
20160926: event_c3_z1=3
20160926: event_c3_z2=2

Answer 1

I forget to de-reference
Odd number of elements in hash assignment with default
sub hash2print {
(my $hashref, my $debug) = #_;
my %HoH = %$hashref; # dereference $hashref to get back the hash
...