From fca97d0ca72524b3bdd61817f7a172dd47d53287 Mon Sep 17 00:00:00 2001
From: Brian Robbins <brianrob@microsoft.com>
Date: Fri, 12 May 2017 10:51:31 -0700
Subject: EventPipe Circular Buffer Support and Ability to Start/Stop Tracing
 (#11507)

---
 src/vm/eventpipefile.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/vm/eventpipefile.h')

diff --git a/src/vm/eventpipefile.h b/src/vm/eventpipefile.h
index 1fbb4c0b79..2f6853545d 100644
--- a/src/vm/eventpipefile.h
+++ b/src/vm/eventpipefile.h
@@ -16,7 +16,13 @@
 class EventPipeFile : public FastSerializableObject
 {
     public:
-        EventPipeFile(SString &outputFilePath);
+
+        EventPipeFile(SString &outputFilePath
+#ifdef _DEBUG
+            ,
+            bool lockOnWrite = false
+#endif // _DEBUG
+        );
         ~EventPipeFile();
 
         // Write an event to the file.
@@ -68,6 +74,10 @@ class EventPipeFile : public FastSerializableObject
 
         // Hashtable of metadata labels.
         MapSHashWithRemove<EventPipeEvent*, StreamLabel> *m_pMetadataLabels;
+
+#ifdef _DEBUG
+        bool m_lockOnWrite;
+#endif // _DEBUG
 };
 
 #endif // FEATURE_PERFTRACING
-- 
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