vendor/lldb/lldb-r216948

1 files changed, 229 insertions, 0 deletions

diff --git a/tools/lldb-mi/MICmdFactory.cpp b/tools/lldb-mi/MICmdFactory.cpp
new file mode 100644
index 000000000000..4897c60e4d66
--- /dev/null
+++ b/tools/lldb-mi/MICmdFactory.cpp
@@ -0,0 +1,229 @@
+//===-- MICmdFactory.cpp ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+//++
+// File:		MICmdFactory.cpp
+//
+// Overview:	CMICmdFactory implementation.
+//
+// Environment:	Compilers:	Visual C++ 12.
+//							gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
+//				Libraries:	See MIReadmetxt. 
+//
+// Copyright:	None.
+//--
+
+// In-house headers:
+#include "MICmdFactory.h"
+#include "MICmnResources.h"
+#include "MICmdData.h"
+#include "MICmdBase.h"
+#include "MICmdCommands.h"
+
+//++ ------------------------------------------------------------------------------------
+// Details:	CMICmdFactory constructor.
+// Type:	Method.
+// Args:	None.
+// Return:	None.
+// Throws:	None.
+//--
+CMICmdFactory::CMICmdFactory( void )
+{
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	CMICmdFactory destructor.
+// Type:	Overridable.
+// Args:	None.
+// Return:	None.
+// Throws:	None.
+//--
+CMICmdFactory::~CMICmdFactory( void )
+{
+	Shutdown();
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Initialize resources for *this Command factory.
+// Type:	Method.
+// Args:	None.
+// Return:	MIstatus::success - Functionality succeeded.
+//			MIstatus::failure - Functionality failed.
+// Throws:	None.
+//--
+bool CMICmdFactory::Initialize( void )
+{
+	m_clientUsageRefCnt++;
+
+	if( m_bInitialized )
+		return MIstatus::success;
+
+	m_bInitialized = true;
+
+	MICmnCommands::RegisterAll();
+
+	return  MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Release resources for *this Command Factory.
+// Type:	Method.
+// Args:	None.
+// Return:	MIstatus::success - Functionality succeeded.
+//			MIstatus::failure - Functionality failed.
+// Throws:	None.
+//--
+bool CMICmdFactory::Shutdown( void )
+{
+	if( --m_clientUsageRefCnt > 0 )
+		return MIstatus::success;
+	
+	if( !m_bInitialized )
+		return MIstatus::success;
+
+	m_mapMiCmdToCmdCreatorFn.clear();
+
+	m_bInitialized = false;
+
+	return MIstatus::success;
+}	
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Register a command's creator function with the command identitier the MI
+//			command name i.e. 'file-exec-and-symbols'.
+// Type:	Method.
+// Args:	vMiCmd			- (R) Command's name, the MI command.
+//			vCmdCreateFn	- (R) Command's creator function pointer.
+// Return:	MIstatus::success - Functionality succeeded.
+//			MIstatus::failure - Functionality failed.
+// Throws:	None.
+//--
+bool CMICmdFactory::CmdRegister( const CMIUtilString & vMiCmd, CmdCreatorFnPtr vCmdCreateFn )
+{
+	if( !IsValid( vMiCmd ) )
+	{
+		SetErrorDescription( CMIUtilString::Format( MIRSRC( IDS_CMDFACTORY_ERR_INVALID_CMD_NAME ), vMiCmd.c_str() ) );
+		return MIstatus::failure;
+	}
+	if( vCmdCreateFn == nullptr )
+	{
+		SetErrorDescription( CMIUtilString::Format( MIRSRC( IDS_CMDFACTORY_ERR_INVALID_CMD_CR8FN ), vMiCmd.c_str() ) );
+		return MIstatus::failure;
+	}
+
+	if( HaveAlready( vMiCmd ) )
+	{
+		SetErrorDescription( CMIUtilString::Format( MIRSRC( IDS_CMDFACTORY_ERR_CMD_ALREADY_REGED ), vMiCmd.c_str() ) );
+		return MIstatus::failure;
+	}
+
+	MapPairMiCmdToCmdCreatorFn_t pr( vMiCmd, vCmdCreateFn );
+	m_mapMiCmdToCmdCreatorFn.insert( pr );
+
+	return MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Check a command is already registered.
+// Type:	Method.
+// Args:	vMiCmd	- (R) Command's name, the MI command.
+// Return:	True - registered.
+//			False - not found.
+// Throws:	None.
+//--
+bool CMICmdFactory::HaveAlready( const CMIUtilString & vMiCmd ) const
+{
+	const MapMiCmdToCmdCreatorFn_t::const_iterator it = m_mapMiCmdToCmdCreatorFn.find( vMiCmd );
+	if( it != m_mapMiCmdToCmdCreatorFn.end() )
+		return true;
+	
+	return false;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Check a command's name is valid:
+//				- name is not empty
+//				- name does not have spaces
+// Type:	Method.
+// Args:	vMiCmd	- (R) Command's name, the MI command.
+// Return:	True - valid.
+//			False - not valid.
+// Throws:	None.
+//--
+bool CMICmdFactory::IsValid( const CMIUtilString & vMiCmd ) const
+{
+	bool bValid = true;
+
+	if( vMiCmd.empty() )
+	{
+		bValid = false;
+		return false;
+	}
+
+	const MIint nPos = vMiCmd.find( " " );
+	if( nPos != (MIint) std::string::npos )
+		bValid = false;
+	
+	return bValid;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Check a command is already registered.
+// Type:	Method.
+// Args:	vMiCmd	- (R) Command's name, the MI command.
+// Return:	True - registered.
+//			False - not found.
+// Throws:	None.
+//--
+bool CMICmdFactory::CmdExist( const CMIUtilString & vMiCmd ) const
+{
+	return HaveAlready( vMiCmd );
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Create a command given the specified MI command name. The command data object
+//			contains the options for the command.
+// Type:	Method.
+// Args:	vMiCmd		- (R) Command's name, the MI command.
+//			vCmdData	- (RW) Command's metadata status/information/result object.		
+//			vpNewCmd	- (W) New command instance.
+// Return:	MIstatus::success - Functionality succeeded.
+//			MIstatus::failure - Functionality failed.
+// Throws:	None.
+//--
+bool CMICmdFactory::CmdCreate( const CMIUtilString & vMiCmd, const SMICmdData & vCmdData, CMICmdBase *& vpNewCmd )
+{
+	bool bOk = MIstatus::success;
+
+	vpNewCmd = nullptr;
+
+	if( !IsValid( vMiCmd ) )
+	{
+		SetErrorDescription( CMIUtilString::Format( MIRSRC( IDS_CMDFACTORY_ERR_INVALID_CMD_NAME ), vMiCmd.c_str() ) );
+		return MIstatus::failure;
+	}
+	if( !HaveAlready( vMiCmd ) )
+	{
+		SetErrorDescription( CMIUtilString::Format( MIRSRC( IDS_CMDFACTORY_ERR_CMD_NOT_REGISTERED ), vMiCmd.c_str() ) );
+		return MIstatus::failure;
+	}
+
+	const MapMiCmdToCmdCreatorFn_t::const_iterator it = m_mapMiCmdToCmdCreatorFn.find( vMiCmd );
+	const CMIUtilString & rMiCmd( (*it).first ); MIunused( rMiCmd );
+	CmdCreatorFnPtr pFn = (*it).second;
+	CMICmdBase * pCmd = (*pFn)();
+
+	SMICmdData cmdData( vCmdData );
+	cmdData.id = pCmd->GetGUID();
+	bOk = pCmd->SetCmdData( cmdData );
+	if( bOk )
+		vpNewCmd = pCmd;
+
+	return bOk;
+}