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//===-- OperatingSystemPython.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_DISABLE_PYTHON

#ifndef liblldb_OperatingSystemPython_h_
#define liblldb_OperatingSystemPython_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
#include "lldb/Interpreter/ScriptInterpreter.h"
#include "lldb/Target/OperatingSystem.h"

class DynamicRegisterInfo;

class OperatingSystemPython : public lldb_private::OperatingSystem
{
public:
    //------------------------------------------------------------------
    // Static Functions
    //------------------------------------------------------------------
    static lldb_private::OperatingSystem *
    CreateInstance (lldb_private::Process *process, bool force);
    
    static void
    Initialize();
    
    static void
    Terminate();
    
    static lldb_private::ConstString
    GetPluginNameStatic();
    
    static const char *
    GetPluginDescriptionStatic();
    
    //------------------------------------------------------------------
    // Class Methods
    //------------------------------------------------------------------
    OperatingSystemPython (lldb_private::Process *process,
                           const lldb_private::FileSpec &python_module_path);
    
    virtual
    ~OperatingSystemPython ();
    
    //------------------------------------------------------------------
    // lldb_private::PluginInterface Methods
    //------------------------------------------------------------------
    virtual lldb_private::ConstString
    GetPluginName();
    
    virtual uint32_t
    GetPluginVersion();
    
    //------------------------------------------------------------------
    // lldb_private::OperatingSystem Methods
    //------------------------------------------------------------------
    virtual bool
    UpdateThreadList (lldb_private::ThreadList &old_thread_list,
                      lldb_private::ThreadList &real_thread_list,
                      lldb_private::ThreadList &new_thread_list);
    
    virtual void
    ThreadWasSelected (lldb_private::Thread *thread);

    virtual lldb::RegisterContextSP
    CreateRegisterContextForThread (lldb_private::Thread *thread,
                                    lldb::addr_t reg_data_addr);

    virtual lldb::StopInfoSP
    CreateThreadStopReason (lldb_private::Thread *thread);

    //------------------------------------------------------------------
    // Method for lazy creation of threads on demand
    //------------------------------------------------------------------
    virtual lldb::ThreadSP
    CreateThread (lldb::tid_t tid, lldb::addr_t context);

protected:
    
    bool IsValid() const
    {
        return m_python_object_sp && m_python_object_sp->GetObject() != NULL;
    }
    
    lldb::ThreadSP
    CreateThreadFromThreadInfo (lldb_private::PythonDictionary &thread_dict,
                                lldb_private::ThreadList &core_thread_list,
                                lldb_private::ThreadList &old_thread_list,
                                bool *did_create_ptr);

    DynamicRegisterInfo *
    GetDynamicRegisterInfo ();

    lldb::ValueObjectSP m_thread_list_valobj_sp;
    std::unique_ptr<DynamicRegisterInfo> m_register_info_ap;
    lldb_private::ScriptInterpreter *m_interpreter;
    lldb::ScriptInterpreterObjectSP m_python_object_sp;
    
};

#endif // #ifndef liblldb_OperatingSystemPython_h_
#endif // #ifndef LLDB_DISABLE_PYTHON