You can use a lexically scoped scalar as your file handle and return it. This will prevent you from overwriting one open filehandle with another. I would advise always using lexically scoped scalars for file handles (it is just generally safer). See the below example:
sub myopen {
my ($file, $mode, $locktype) = @_;
#open the file...for the sake of brevity
#I'll not include the mode logic here
if (open(my $fh, "$file")){
print "Opened $file successfully.\n";
#lock the file
#do whatever else needs to be done
return $fh;
} else {
warn "Can't open: $!\n";
}
}
May the Force be with you
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