From 56a7c5b2fd7030d409eb92b70bc3e060a656b794 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 29 Nov 2005 19:00:12 +0000
Subject: [PATCH] assertion to prevent crash

---
 pandatool/src/pstatserver/pStatReader.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pandatool/src/pstatserver/pStatReader.cxx b/pandatool/src/pstatserver/pStatReader.cxx
index 638de6ae63..217d6f655a 100644
--- a/pandatool/src/pstatserver/pStatReader.cxx
+++ b/pandatool/src/pstatserver/pStatReader.cxx
@@ -308,6 +308,7 @@ void PStatReader::
 dequeue_frame_data() {
   while (!_queued_frame_data.empty()) {
     const FrameData &data = _queued_frame_data.front();
+    nassertv(_client_data != (PStatClientData *)NULL); 
 
     // Check to see if any new collectors have level data.
     int num_levels = data._frame_data->get_num_levels();