Passing an array like in sub(%prevsidstat) flattens the hash into a list and passes the list.

This would be better, passing the references 

 
my $loopCnt=0;
my $prevsidstat=getSessStat();
while (1) {
 debug("Sleeping for $ENV{SESSNAP_INTRVL}...\n");
 sleep $ENV{SESSNAP_INTRVL};
 my $cursidstat=getSessStat();
 if ((keys %$cursidstat) != 0 ) {
  my $ComResult={sidStatComp($prevsidstat,$cursidstat)};
  $prevsidstat=$cursidstat;
 }
last;
}

sub sidStatComp {
#*****************************************************
my ($prevsidstat,$cursidstat)=@_;
print "Previous\n";
for my $instsid (keys %$prevsidstat) {
 print "$instsid =>".$prevsidstat->{$instsid}{SQLEXECINFO}."\n";
}
print "Current\n";
for my $instsid1 (keys %$cursidstat) {
 print "$instsid1 =>". $cursidstat->{$instsid1}{SQLEXECINFO}."\n";
}
return 1;
}

[download]

In reply to Re: Passing hashes to sub by huck
in thread Passing hashes to sub by PSP

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.