* Updated examples

* added VIF example

examples/base.rb

@@ -0,0 +1,11 @@
+def ask_host
+  host_url = ARGV[0]
+
+  if host_url.nil? or host_url !~ /http:\/\/.*$/
+    puts "Usage: #{$0} <xen-api server url>"
+    puts
+    puts "Example: #{$0} http://xen.example.net:9363"
+    exit
+  end
+  return host_url
+end

examples/vif.rb

@@ -0,0 +1,26 @@
+require 'rubygems'
+begin
+  require '../lib/pangea'
+rescue
+  require 'pangea'
+end
+# cmdline helper
+require "#{File.join(File.dirname(__FILE__), 'base.rb')}"
+# from base.rb
+host_url = ask_host
+
+host = Pangea::Host.connect(host_url, 'foo', 'bar')
+
+# skip if only one VM available (Dom0)
+if host.resident_vms.size > 1
+  vm = host.resident_vms[1]
+  puts "VM Label:      #{vm.label}"
+  vm.vifs.each do |vif|
+    puts "Device:      #{vif.device}"
+    puts "MAC Address: " + vif.mac
+    metrics = vif.metrics
+    puts "Kbs Out:     #{metrics.io_write_kbs}"
+    puts "Kbs In:      #{metrics.io_read_kbs}"
+    puts "----"
+  end
+end