1 files changed, 59 insertions, 0 deletions
diff --git a/src/vm/threads.h b/src/vm/threads.h
index 34fca24c4f..74b239d776 100644
--- a/src/vm/threads.h
+++ b/src/vm/threads.h
@@ -185,6 +185,10 @@ typedef DPTR(PTR_ThreadLocalBlock) PTR_PTR_ThreadLocalBlock;
 #include "interoputil.h"
 #include "eventtrace.h"
 
+#ifdef FEATURE_PERFTRACING
+class EventPipeBufferList;
+#endif // FEATURE_PERFTRACING
+
 #ifdef CROSSGEN_COMPILE
 
 #include "asmconstants.h"
@@ -5334,6 +5338,61 @@ public:
         m_pAllLoggedTypes = pAllLoggedTypes;
     }
 
+#ifdef FEATURE_PERFTRACING
+private:
+    // The object that contains the list write buffers used by this thread.
+    Volatile<EventPipeBufferList*> m_pEventPipeBufferList;
+
+    // Whether or not the thread is currently writing an event.
+    Volatile<bool> m_eventWriteInProgress;
+
+    // SampleProfiler thread state.  This is set on suspension and cleared before restart.
+    // True if the thread was in cooperative mode.  False if it was in preemptive when the suspension started.
+    Volatile<ULONG> m_gcModeOnSuspension;
+
+public:
+    EventPipeBufferList* GetEventPipeBufferList()
+    {
+        LIMITED_METHOD_CONTRACT;
+        return m_pEventPipeBufferList;
+    }
+
+    void SetEventPipeBufferList(EventPipeBufferList *pList)
+    {
+        LIMITED_METHOD_CONTRACT;
+        m_pEventPipeBufferList = pList;
+    }
+
+    bool GetEventWriteInProgress() const
+    {
+        LIMITED_METHOD_CONTRACT;
+        return m_eventWriteInProgress;
+    }
+
+    void SetEventWriteInProgress(bool value)
+    {
+        LIMITED_METHOD_CONTRACT;
+        m_eventWriteInProgress = value;
+    }
+
+    bool GetGCModeOnSuspension()
+    {
+        LIMITED_METHOD_CONTRACT;
+        return m_gcModeOnSuspension;
+    }
+
+    void SaveGCModeOnSuspension()
+    {
+        LIMITED_METHOD_CONTRACT;
+        m_gcModeOnSuspension = m_fPreemptiveGCDisabled;
+    }
+
+    void ClearGCModeOnSuspension()
+    {
+        m_gcModeOnSuspension = 0;
+    }
+#endif // FEATURE_PERFTRACING
+
 #ifdef FEATURE_HIJACK
 private: