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

//++
// File:		MICmnLLDBDebugger.h
//
// Overview:	CMICmnLLDBDebugger interface.
//
// Environment:	Compilers:	Visual C++ 12.
//							gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
//				Libraries:	See MIReadmetxt. 
//
// Copyright:	None.
//--

#pragma once

// Third party headers
#include <queue>
#include <map>
#include <lldb/API/SBDebugger.h>
#include <lldb/API/SBListener.h>
#include <lldb/API/SBEvent.h>

// In-house headers:
#include "MICmnBase.h"
#include "MIUtilThreadBaseStd.h"
#include "MIUtilSingletonBase.h"

// Declarations:
class CMIDriverBase;
class CMICmnLLDBDebuggerHandleEvents;

//++ ============================================================================
// Details:	MI proxy/adapter for the LLDB public SBDebugger API. The CMIDriver
//			requires *this object. Command classes make calls on *this object
//			to facilitate their work effort. The instance runs in its own worker
//			thread.
//			A singleton class.
// Gotchas:	None.
// Authors:	Illya Rudkin 26/02/2014.
// Changes:	None.
//--
class CMICmnLLDBDebugger
:	public CMICmnBase
,	public CMIUtilThreadActiveObjBase
,	public MI::ISingleton< CMICmnLLDBDebugger >
{
	friend class MI::ISingleton< CMICmnLLDBDebugger >;
	
// Methods:
public:
	bool	Initialize( void );
	bool	Shutdown( void );
	
	bool				SetDriver( const CMIDriverBase & vClientDriver );
	CMIDriverBase &		GetDriver( void ) const;
	lldb::SBDebugger &	GetTheDebugger( void );
	lldb::SBListener &	GetTheListener( void );
	
	// MI Commands can use these functions to listen for events they require 
	bool RegisterForEvent( const CMIUtilString & vClientName, const CMIUtilString & vBroadcasterClass, const MIuint vEventMask );
	bool UnregisterForEvent( const CMIUtilString & vClientName, const CMIUtilString & vBroadcasterClass );
	bool RegisterForEvent( const CMIUtilString & vClientName, const lldb::SBBroadcaster & vBroadcaster, const MIuint vEventMask );	
	bool UnregisterForEvent( const CMIUtilString & vClientName, const lldb::SBBroadcaster & vBroadcaster );							
	
// Overridden:
public:
	// From CMIUtilThreadActiveObjBase
	virtual const CMIUtilString & ThreadGetName( void ) const;

// Overridden:
protected:
	// From CMIUtilThreadActiveObjBase
	virtual bool ThreadRun( bool & vrIsAlive );
	virtual bool ThreadFinish( void );
	
// Typedefs:
private:
	typedef std::map< CMIUtilString, MIuint >	MapBroadcastClassNameToEventMask_t;
	typedef std::pair< CMIUtilString, MIuint >	MapPairBroadcastClassNameToEventMask_t;
	typedef std::map< CMIUtilString, MIuint >	MapIdToEventMask_t;
	typedef std::pair< CMIUtilString, MIuint >	MapPairIdToEventMask_t;

// Methods:
private:
	/* ctor */	CMICmnLLDBDebugger( void );
	/* ctor */	CMICmnLLDBDebugger( const CMICmnLLDBDebugger & );
	void		operator=( const CMICmnLLDBDebugger & );
	
	bool InitSBDebugger( void );
	bool InitSBListener( void );
	bool InitStdStreams( void );
	bool MonitorSBListenerEvents( bool & vrbYesExit );
	
	bool BroadcasterGetMask( const CMIUtilString & vBroadcasterClass, MIuint & vEventMask ) const;
	bool BroadcasterRemoveMask( const CMIUtilString & vBroadcasterClass );
	bool BroadcasterSaveMask( const CMIUtilString & vBroadcasterClass, const MIuint vEventMask );
	
	MIuint	ClientGetMaskForAllClients( const CMIUtilString & vBroadcasterClass ) const;
	bool	ClientSaveMask( const CMIUtilString & vClientName, const CMIUtilString & vBroadcasterClass, const MIuint vEventMask );
	bool	ClientRemoveTheirMask( const CMIUtilString & vClientName, const CMIUtilString & vBroadcasterClass );
	bool	ClientGetTheirMask( const CMIUtilString & vClientName, const CMIUtilString & vBroadcasterClass, MIuint & vwEventMask );

// Overridden:
private:
	// From CMICmnBase
	/* dtor */ virtual ~CMICmnLLDBDebugger( void );

// Attributes:
private:
	CMIDriverBase *						m_pClientDriver;		// The driver that wants to use *this LLDB debugger
	lldb::SBDebugger					m_lldbDebugger;			// SBDebugger is the primordial object that creates SBTargets and provides access to them
	lldb::SBListener					m_lldbListener;			// API clients can register its own listener to debugger events 
	const CMIUtilString					m_constStrThisThreadId;
	MapBroadcastClassNameToEventMask_t	m_mapBroadcastClassNameToEventMask;
	MapIdToEventMask_t					m_mapIdToEventMask;
};