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#!/usr/bin/perl
require 5.003;

# Looks for lines emitted by H5O_open() and H5O_close() and tries to
# determine which objects were not properly closed.

while (<>) {
   next unless /^([<>])(0x[\da-f]+|\d+)$/;
   my ($op, $addr) = ($1, $2);

   if ($op eq ">") {
      # Open object
      $obj{$addr} += 1;
   } else {
      # Close object
      die unless $obj{$addr}>0;
      $obj{$addr} -= 1;
      delete $obj{$addr} unless $obj{$addr};
   }
}

for (sort keys %obj) {
   printf "%3d %s\n", $obj{$_}, $_;
}

exit 0;