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diff --git a/tools/debugserver/source/DNBThreadResumeActions.h b/tools/debugserver/source/DNBThreadResumeActions.h
new file mode 100644
index 0000000000000..81c7c43b72229
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+++ b/tools/debugserver/source/DNBThreadResumeActions.h
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+//===-- DNBThreadResumeActions.h --------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  Created by Greg Clayton on 03/13/2010
+//
+//===----------------------------------------------------------------------===//
+
+
+#ifndef __DNBThreadResumeActions_h__
+#define __DNBThreadResumeActions_h__
+
+#include <vector>
+
+#include "DNBDefs.h"
+
+
+class DNBThreadResumeActions
+{
+public:
+    DNBThreadResumeActions ();
+
+    DNBThreadResumeActions (nub_state_t default_action, int signal);
+
+    DNBThreadResumeActions (const DNBThreadResumeAction *actions, size_t num_actions);
+
+    bool
+    IsEmpty() const
+    {
+        return m_actions.empty();
+    }
+
+    void
+    Append (const DNBThreadResumeAction &action);
+
+    void
+    AppendAction (nub_thread_t tid,
+                  nub_state_t state,
+                  int signal = 0,
+                  nub_addr_t addr = INVALID_NUB_ADDRESS);
+
+    void
+    AppendResumeAll ()
+    {
+        AppendAction (INVALID_NUB_THREAD, eStateRunning);
+    }
+
+    void
+    AppendSuspendAll ()
+    {
+        AppendAction (INVALID_NUB_THREAD, eStateStopped);
+    }
+
+    void
+    AppendStepAll ()
+    {
+        AppendAction (INVALID_NUB_THREAD, eStateStepping);
+    }
+
+    const DNBThreadResumeAction *
+    GetActionForThread (nub_thread_t tid, bool default_ok) const;
+
+    size_t
+    NumActionsWithState (nub_state_t state) const;
+
+    bool
+    SetDefaultThreadActionIfNeeded (nub_state_t action, int signal);
+
+    void
+    SetSignalHandledForThread (nub_thread_t tid) const;
+
+    const DNBThreadResumeAction *
+    GetFirst() const
+    {
+        return m_actions.data();
+    }
+
+    size_t
+    GetSize () const
+    {
+        return m_actions.size();
+    }
+    
+    void
+    Clear()
+    {
+        m_actions.clear();
+        m_signal_handled.clear();
+    }
+
+protected:
+    std::vector<DNBThreadResumeAction> m_actions;
+    mutable std::vector<bool> m_signal_handled;
+};
+
+
+#endif    // #ifndef __DNBThreadResumeActions_h__