//===-- 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 liblldb_OperatingSystemPython_h_
#define liblldb_OperatingSystemPython_h_

#ifndef LLDB_DISABLE_PYTHON

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/StructuredData.h"
#include "lldb/Target/OperatingSystem.h"

class DynamicRegisterInfo;

namespace lldb_private
{
class ScriptInterpreter;
}

class OperatingSystemPython : public lldb_private::OperatingSystem
{
public:
    OperatingSystemPython(lldb_private::Process *process,
                          const lldb_private::FileSpec &python_module_path);

    ~OperatingSystemPython() override;

    //------------------------------------------------------------------
    // 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();
    
    //------------------------------------------------------------------
    // lldb_private::PluginInterface Methods
    //------------------------------------------------------------------
    lldb_private::ConstString
    GetPluginName() override;
    
    uint32_t
    GetPluginVersion() override;
    
    //------------------------------------------------------------------
    // lldb_private::OperatingSystem Methods
    //------------------------------------------------------------------
    bool
    UpdateThreadList(lldb_private::ThreadList &old_thread_list,
                     lldb_private::ThreadList &real_thread_list,
                     lldb_private::ThreadList &new_thread_list) override;
    
    void
    ThreadWasSelected(lldb_private::Thread *thread) override;

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

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

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

protected:
    bool IsValid() const
    {
        return m_python_object_sp && m_python_object_sp->IsValid();
    }

    lldb::ThreadSP CreateThreadFromThreadInfo(lldb_private::StructuredData::Dictionary &thread_dict,
                                              lldb_private::ThreadList &core_thread_list, lldb_private::ThreadList &old_thread_list,
                                              std::vector<bool> &core_used_map, 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_private::StructuredData::ObjectSP m_python_object_sp;
};

#endif // LLDB_DISABLE_PYTHON

#endif // liblldb_OperatingSystemPython_h_