Added VM_metrics.get_all.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

tools/python/xen/xend/XendAPI.py

@@ -1516,6 +1516,9 @@ class XendAPI(object):
     def _VM_metrics_get(self, ref):
         return XendVMMetrics.get_by_uuid(ref)
 
+    def VM_metrics_get_all(self, _):
+        return xen_api_success(XendVMMetrics.get_all())
+
     def VM_metrics_get_record(self, _, ref):
         return xen_api_success(self._VM_metrics_get(ref).get_record())
 

tools/python/xen/xend/XendVMMetrics.py

@@ -31,6 +31,11 @@ class XendVMMetrics:
         return uuid in instances
 
     is_valid_vm_metrics = classmethod(is_valid_vm_metrics)
+
+    def get_all(_):
+        return instances.keys()
+
+    get_all = classmethod(get_all)
    
     def __init__(self, uuid, xend_domain_instance):
         self.uuid = uuid