1 files changed, 217 insertions, 0 deletions
diff --git a/include/lldb/Core/Event.h b/include/lldb/Core/Event.h
new file mode 100644
index 000000000000..1c3eec0359c3
--- /dev/null
+++ b/include/lldb/Core/Event.h
@@ -0,0 +1,217 @@
+//===-- Event.h -------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Event_h_
+#define liblldb_Event_h_
+
+// C Includes
+// C++ Includes
+#include <list>
+#include <string>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Host/Predicate.h"
+
+namespace lldb_private {
+
+//----------------------------------------------------------------------
+// lldb::EventData
+//----------------------------------------------------------------------
+class EventData
+{
+    friend class Event;
+
+public:
+    EventData ();
+
+    virtual
+    ~EventData();
+
+    virtual const ConstString &
+    GetFlavor () const = 0;
+
+    virtual void
+    Dump (Stream *s) const;
+
+private:
+    virtual void
+    DoOnRemoval (Event *event_ptr)
+    {
+    }
+
+    DISALLOW_COPY_AND_ASSIGN (EventData);
+
+};
+
+//----------------------------------------------------------------------
+// lldb::EventDataBytes
+//----------------------------------------------------------------------
+class EventDataBytes : public EventData
+{
+public:
+    //------------------------------------------------------------------
+    // Constructors
+    //------------------------------------------------------------------
+    EventDataBytes ();
+
+    EventDataBytes (const char *cstr);
+
+    EventDataBytes (const void *src, size_t src_len);
+
+    virtual
+    ~EventDataBytes();
+
+    //------------------------------------------------------------------
+    // Member functions
+    //------------------------------------------------------------------
+    virtual const ConstString &
+    GetFlavor () const;
+
+    virtual void
+    Dump (Stream *s) const;
+
+    const void *
+    GetBytes() const;
+
+    size_t
+    GetByteSize() const;
+
+    void
+    SetBytes (const void *src, size_t src_len);
+    
+    void
+    SwapBytes (std::string &new_bytes);
+
+    void
+    SetBytesFromCString (const char *cstr);
+
+    //------------------------------------------------------------------
+    // Static functions
+    //------------------------------------------------------------------
+    static const EventDataBytes *
+    GetEventDataFromEvent (const Event *event_ptr);
+
+    static const void *
+    GetBytesFromEvent (const Event *event_ptr);
+
+    static size_t
+    GetByteSizeFromEvent (const Event *event_ptr);
+
+    static const ConstString &
+    GetFlavorString ();
+
+private:
+    std::string m_bytes;
+
+    DISALLOW_COPY_AND_ASSIGN (EventDataBytes);
+
+};
+
+//----------------------------------------------------------------------
+// lldb::Event
+//----------------------------------------------------------------------
+class Event
+{
+    friend class Broadcaster;
+    friend class Listener;
+    friend class EventData;
+
+public:
+
+    Event (Broadcaster *broadcaster, uint32_t event_type, EventData *data = NULL);
+
+    Event (uint32_t event_type, EventData *data = NULL);
+
+    ~Event ();
+
+    void
+    Dump (Stream *s) const;
+
+    EventData *
+    GetData ()
+    {
+        return m_data_ap.get();
+    }
+
+    const EventData *
+    GetData () const
+    {
+        return m_data_ap.get();
+    }
+    
+    void
+    SetData (EventData *new_data)
+    {
+        m_data_ap.reset (new_data);
+    }
+
+    uint32_t
+    GetType () const
+    {
+        return m_type;
+    }
+    
+    void
+    SetType (uint32_t new_type)
+    {
+        m_type = new_type;
+    }
+
+    Broadcaster *
+    GetBroadcaster () const
+    {
+        return m_broadcaster;
+    }
+    
+    bool
+    BroadcasterIs (Broadcaster *broadcaster)
+    {
+        return broadcaster == m_broadcaster;
+    }
+
+    void
+    Clear()
+    {
+        m_data_ap.reset();
+    }
+
+
+private:
+    // This is only called by Listener when it pops an event off the queue for
+    // the listener.  It calls the Event Data's DoOnRemoval() method, which is
+    // virtual and can be overridden by the specific data classes.
+
+    void
+    DoOnRemoval ();
+
+    // Called by Broadcaster::BroadcastEvent prior to letting all the listeners
+    // know about it update the contained broadcaster so that events can be
+    // popped off one queue and re-broadcast to others.
+    void
+    SetBroadcaster (Broadcaster *broadcaster)
+    {
+        m_broadcaster = broadcaster;
+    }
+
+
+    Broadcaster *   m_broadcaster;  // The broadcaster that sent this event
+    uint32_t        m_type;         // The bit describing this event
+    std::unique_ptr<EventData> m_data_ap;         // User specific data for this event
+
+
+    DISALLOW_COPY_AND_ASSIGN (Event);
+    Event();    // Disallow default constructor
+};
+
+} // namespace lldb_private
+
+#endif  // liblldb_Event_h_