Hi All,
Is there any way I can prioritize my VMs when there is resource crunch in host machine so that some VMs will be allocated more vcpu, more memory than other VMs in kvm/qemu hypervisor based virtual machines?
Lets say in my cloud environment my Ubuntu 16 compute hosts are running some... (0 Replies)
Trying to set or modify the randomly set hostID of a Solaris 10 virtual/guest machine that I installed on a Windows-XP host machine (using Virtual Box 4.1.12).
I was able to set/modify the hostname of the Solaris 10 virtual/guest machine during installation as well as via the Virtual Box... (4 Replies)
I have installed Oracle VM virtual box on Windows 7 and using LINUX (backtrack 5) as my virtual OS. The problem is i'm unable to connect to internet from my virtual OS. i'm using USB dongle (mobile broad band) to connect to internet from my host OS windows 7.
I tried setting NAT in VM settings... (0 Replies)
hi everyone... this is my first post here
please help me with this..as iam new to solaris
i have installed solaris 10 on virtual box.. and am not able to connect to the internet ..
is there anyway i can get connect to the net..
please help me step by step if possible...
thanks in... (1 Reply)
Not really a newbie, but I have a strange problem and I'm not sure how to further troubleshoot it.
I have to log out of a virtual terminal by typing exit, then exit again as in:
woodnt@toshiba-laptop ~ $ exit
logout
woodnt@toshiba-laptop ~ $ exit
logout
I DON'T have to do this when I'm... (1 Reply)
Hi,
I am trying to install FLEX in HP-UX 11 and I am having issues in getting it up. After installing the FLEX I got from the HP-UX site for 11.11, it complained as missing libiconv.sl. Then I got the libiconv installed from the DEPOT got from HP-UX site and now its complaining as... (2 Replies)
Class::Virtual(3pm) User Contributed Perl Documentation Class::Virtual(3pm)NAME
Class::Virtual - Base class for virtual base classes.
SYNOPSIS
package My::Virtual::Idaho;
use base qw(Class::Virtual);
__PACKAGE__->virtual_methods(qw(new foo bar this that));
package My::Private::Idaho;
use base qw(My::Virtual::Idaho);
# Check to make sure My::Private::Idaho implemented everything
my @missing = __PACKAGE__->missing_methods;
die __PACKAGE__ . ' forgot to implement ' . join ', ', @missing
if @missing;
# If My::Private::Idaho forgot to implement new(), the program will
# halt and yell about that.
my $idaho = My::Private::Idaho->new;
# See what methods we're obligated to implement.
my @must_implement = __PACKAGE__->virtual_methods;
DESCRIPTION
This is a base class for implementing virtual base classes (what some people call an abstract class). Kinda kooky. It allows you to
explicitly declare what methods are virtual and that must be implemented by subclasses. This might seem silly, since your program will
halt and catch fire when an unimplemented virtual method is hit anyway, but there's some benefits.
The error message is more informative. Instead of the usual "Can't locate object method" error, you'll get one explaining that a virtual
method was left unimplemented.
Subclass authors can explicitly check to make sure they've implemented all the necessary virtual methods. When used as part of a
regression test, it will shield against the virtual method requirements changing out from under the subclass.
Finally, subclass authors can get an explicit list of everything they're expected to implement.
Doesn't hurt and it doesn't slow you down.
Methods
virtual_methods
Virtual::Class->virtual_methods(@virtual_methods);
my @must_implement = Sub::Class->virtual_methods;
This is an accessor to the list of virtual_methods. Virtual base classes will declare their list of virtual methods. Subclasses will
look at them. Once the virtual methods are set they cannot be undone.
missing_methods
my @missing_methods = Sub::Class->missing_methods;
Returns a list of methods Sub::Class has not yet implemented.
CAVEATS and BUGS
Autoloaded methods are currently not recognized. I have no idea how to solve this.
AUTHOR
Michael G Schwern <schwern@pobox.com>
LEGAL
Copyright 2000, 2001, 2003, 2004 Michael G Schwern
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See <http://www.perl.com/perl/misc/Artistic.html>
SEE ALSO
Class::Virtually::Abstract
perl v5.10.1 2007-10-23 Class::Virtual(3pm)