From 0b2de75812246d6055d3bc2b0f62bc2d77cdb040 Mon Sep 17 00:00:00 2001
From: Iustin Pop <iustin@google.com>
Date: Wed, 10 Sep 2008 17:07:03 +0000
Subject: [PATCH] Add an atomic ConfigWrite.GetAllInstanceInfo()
In order to be able to query instance without locking them, we need the
same atomic query of multiple instances as for nodes.
Reviewed-by: ultrotter
---
lib/config.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/lib/config.py b/lib/config.py
index f1c9bf228..f939ecff9 100644
--- a/lib/config.py
+++ b/lib/config.py
@@ -469,6 +469,19 @@ class ConfigWriter:
"""
return self._UnlockedGetInstanceInfo(instance_name)
+ @locking.ssynchronized(_config_lock, shared=1)
+ def GetAllInstancesInfo(self):
+ """Get the configuration of all instances.
+
+ @rtype: dict
+ @returns: dict of (instance, instance_info), where instance_info is what
+ would GetInstanceInfo return for the node
+
+ """
+ my_dict = dict([(node, self._UnlockedGetInstanceInfo(node))
+ for node in self._UnlockedGetInstanceList()])
+ return my_dict
+
@locking.ssynchronized(_config_lock)
def AddNode(self, node):
"""Add a node to the configuration.
--
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