//===-- SBListener.h --------------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef LLDB_SBListener_h_
#define LLDB_SBListener_h_

#include "lldb/API/SBDefines.h"

namespace lldb {

class LLDB_API SBListener
{
public:
    SBListener ();

    SBListener (const char *name);

    SBListener (const SBListener &rhs);

    ~SBListener ();

    const lldb::SBListener &
    operator = (const lldb::SBListener &rhs);

    void
    AddEvent (const lldb::SBEvent &event);

    void
    Clear ();

    bool
    IsValid () const;

    uint32_t
    StartListeningForEventClass (SBDebugger &debugger,
                                 const char *broadcaster_class, 
                                 uint32_t event_mask);
                                 
    bool
    StopListeningForEventClass (SBDebugger &debugger,
                                const char *broadcaster_class,
                                uint32_t event_mask);
    
    uint32_t
    StartListeningForEvents (const lldb::SBBroadcaster& broadcaster,
                             uint32_t event_mask);

    bool
    StopListeningForEvents (const lldb::SBBroadcaster& broadcaster,
                            uint32_t event_mask);

    // Returns true if an event was received, false if we timed out.
    bool
    WaitForEvent (uint32_t num_seconds,
                  lldb::SBEvent &event);

    bool
    WaitForEventForBroadcaster (uint32_t num_seconds,
                                const lldb::SBBroadcaster &broadcaster,
                                lldb::SBEvent &sb_event);

    bool
    WaitForEventForBroadcasterWithType (uint32_t num_seconds,
                                        const lldb::SBBroadcaster &broadcaster,
                                        uint32_t event_type_mask,
                                        lldb::SBEvent &sb_event);

    bool
    PeekAtNextEvent (lldb::SBEvent &sb_event);

    bool
    PeekAtNextEventForBroadcaster (const lldb::SBBroadcaster &broadcaster,
                                   lldb::SBEvent &sb_event);

    bool
    PeekAtNextEventForBroadcasterWithType (const lldb::SBBroadcaster &broadcaster,
                                           uint32_t event_type_mask,
                                           lldb::SBEvent &sb_event);

    bool
    GetNextEvent (lldb::SBEvent &sb_event);

    bool
    GetNextEventForBroadcaster (const lldb::SBBroadcaster &broadcaster,
                                lldb::SBEvent &sb_event);

    bool
    GetNextEventForBroadcasterWithType (const lldb::SBBroadcaster &broadcaster,
                                        uint32_t event_type_mask,
                                        lldb::SBEvent &sb_event);

    bool
    HandleBroadcastEvent (const lldb::SBEvent &event);

protected:
    friend class SBAttachInfo;
    friend class SBBroadcaster;
    friend class SBCommandInterpreter;
    friend class SBDebugger;
    friend class SBLaunchInfo;
    friend class SBTarget;

    SBListener (lldb_private::Listener &listener);

    SBListener (const lldb::ListenerSP &listener_sp);

    lldb::ListenerSP
    GetSP ()
    {
        return m_opaque_sp;
    }

private:

    lldb_private::Listener *
    operator->() const;

    lldb_private::Listener *
    get() const;

    lldb_private::Listener &
    ref() const;
        
    lldb_private::Listener &
    operator *();

    const lldb_private::Listener &
    operator *() const;

    void
    reset(lldb_private::Listener *listener, bool transfer_ownership);

    lldb::ListenerSP m_opaque_sp;
    lldb_private::Listener *m_opaque_ptr;
};

} // namespace lldb

#endif  // LLDB_SBListener_h_
