1 files changed, 32 insertions, 0 deletions
diff --git a/src/vm/eventstore.hpp b/src/vm/eventstore.hpp
new file mode 100644
index 0000000000..9e53bb06f8
--- /dev/null
+++ b/src/vm/eventstore.hpp
@@ -0,0 +1,32 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+
+#ifndef __EventStore_hpp
+#define __EventStore_hpp
+
+#include "synch.h"
+
+class SyncBlock;
+struct SLink;
+struct WaitEventLink;
+
+typedef DPTR(WaitEventLink) PTR_WaitEventLink;
+
+// Used inside Thread class to chain all events that a thread is waiting for by Object::Wait
+struct WaitEventLink {
+    SyncBlock         *m_WaitSB;
+    CLREvent          *m_EventWait;
+    PTR_Thread         m_Thread;       // Owner of this WaitEventLink.
+    PTR_WaitEventLink  m_Next;         // Chain to the next waited SyncBlock.
+    SLink              m_LinkSB;       // Chain to the next thread waiting on the same SyncBlock.
+    DWORD              m_RefCount;     // How many times Object::Wait is called on the same SyncBlock.
+};
+
+CLREvent* GetEventFromEventStore();
+void StoreEventToEventStore(CLREvent* hEvent);
+void InitEventStore();
+void TerminateEventStore();
+
+#endif