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+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __SYSTEMC_CORE_EVENT_HH__
+#define __SYSTEMC_CORE_EVENT_HH__
+
+#include <string>
+#include <vector>
+
+#include "systemc/core/list.hh"
+#include "systemc/core/object.hh"
+#include "systemc/ext/core/sc_prim.hh"
+#include "systemc/ext/core/sc_time.hh"
+
+namespace sc_core
+{
+
+class sc_event;
+
+} // namespace sc_core
+
+namespace sc_gem5
+{
+
+typedef std::vector<sc_core::sc_event *> Events;
+
+class Event
+{
+  public:
+    Event(sc_core::sc_event *_sc_event);
+    Event(sc_core::sc_event *_sc_event, const char *_basename);
+
+    ~Event();
+
+    sc_core::sc_event *sc_event() { return _sc_event; }
+
+    const std::string &name() const;
+    const std::string &basename() const;
+    bool inHierarchy() const;
+    sc_core::sc_object *getParentObject() const;
+
+    void notify();
+    void notify(const sc_core::sc_time &t);
+    void
+    notify(double d, sc_core::sc_time_unit &u)
+    {
+        notify(sc_core::sc_time(d, u));
+    }
+    void cancel();
+
+    bool triggered() const;
+
+    static Event *
+    getFromScEvent(sc_core::sc_event *e)
+    {
+        return e->_gem5_event;
+    }
+
+    static const Event *
+    getFromScEvent(const sc_core::sc_event *e)
+    {
+        return e->_gem5_event;
+    }
+
+  private:
+    sc_core::sc_event *_sc_event;
+
+    std::string _basename;
+    std::string _name;
+    bool _inHierarchy;
+
+    sc_core::sc_object *parent;
+    EventsIt parentIt;
+};
+
+extern Events topLevelEvents;
+extern Events allEvents;
+
+EventsIt findEvent(const std::string &name);
+
+} // namespace sc_gem5
+
+#endif  //__SYSTEMC_CORE_EVENT_HH__