From 5a39df49593a862d0de9ef01db2f83e23b2fd67f Mon Sep 17 00:00:00 2001
From: Scott Blomquist <sblom@microsoft.com>
Date: Wed, 2 Jan 2013 18:06:41 -0800
Subject: [PATCH] windows: fix perfctr crash on XP and 2003

Some performance counter related functions are not available on Windows
XP and Windows Server 2003, which caused node to call a NULL pointer.

Closes #4462
Closes #4511
---
 src/node_win32_perfctr_provider.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/node_win32_perfctr_provider.cc b/src/node_win32_perfctr_provider.cc
index 8135726852b..903150ed61b 100644
--- a/src/node_win32_perfctr_provider.cc
+++ b/src/node_win32_perfctr_provider.cc
@@ -172,6 +172,13 @@ void InitPerfCountersWin32() {
     ZeroMemory(&providerContext, sizeof(providerContext));
     providerContext.ContextSize = sizeof(providerContext);
 
+    if (!perfctr_startProvider ||
+        !perfctr_setCounterSetInfo ||
+        !perfctr_createInstance) {
+      NodeCounterProvider = NULL;
+      return;
+    }
+
     status = perfctr_startProvider(&NodeCounterSetGuid,
                                    &providerContext,
                                    &NodeCounterProvider);