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Diffstat (limited to 'tools/lldb-mi/MICmdMgr.cpp')
-rw-r--r-- | tools/lldb-mi/MICmdMgr.cpp | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/tools/lldb-mi/MICmdMgr.cpp b/tools/lldb-mi/MICmdMgr.cpp new file mode 100644 index 000000000000..4abcbad3f48d --- /dev/null +++ b/tools/lldb-mi/MICmdMgr.cpp @@ -0,0 +1,257 @@ +//===-- MICmdMgr.cpp --------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +//++ +// File: MICmdMgr.cpp +// +// Overview: CMICmdMgr 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 "MICmdMgr.h" +#include "MICmnResources.h" +#include "MICmnLog.h" +#include "MICmdInterpreter.h" +#include "MICmdFactory.h" +#include "MICmdInvoker.h" +#include "MICmdBase.h" +#include "MIUtilSingletonBase.h" +#include "MIUtilSingletonHelper.h" + +//++ ------------------------------------------------------------------------------------ +// Details: CMICmdMgr constructor. +// Type: Method. +// Args: None. +// Return: None. +// Throws: None. +//-- +CMICmdMgr::CMICmdMgr( void ) +: m_interpretor( CMICmdInterpreter::Instance() ) +, m_factory( CMICmdFactory::Instance() ) +, m_invoker( CMICmdInvoker::Instance() ) +{ +} + +//++ ------------------------------------------------------------------------------------ +// Details: CMICmdMgr destructor. +// Type: Overridable. +// Args: None. +// Return: None. +// Throws: None. +//-- +CMICmdMgr::~CMICmdMgr( void ) +{ + Shutdown(); +} + +//++ ------------------------------------------------------------------------------------ +// Details: Initialize resources for *this Command Manager. +// Type: Method. +// Args: None. +// Return: MIstatus::success - Functionality succeeded. +// MIstatus::failure - Functionality failed. +// Throws: None. +//-- +bool CMICmdMgr::Initialize( void ) +{ + m_clientUsageRefCnt++; + + if( m_bInitialized ) + return MIstatus::success; + + bool bOk = MIstatus::success; + CMIUtilString errMsg; + + // Note initialization order is important here as some resources depend on previous + MI::ModuleInit< CMICmnLog > ( IDS_MI_INIT_ERR_LOG , bOk, errMsg ); + MI::ModuleInit< CMICmnResources >( IDS_MI_INIT_ERR_RESOURCES, bOk, errMsg ); + if( bOk && !m_interpretor.Initialize() ) + { + bOk = false; + errMsg = CMIUtilString::Format( MIRSRC( IDS_MI_INIT_ERR_CMDINTERPRETER ), m_interpretor.GetErrorDescription().c_str() ); + } + if( bOk && !m_factory.Initialize() ) + { + bOk = false; + errMsg = CMIUtilString::Format( MIRSRC( IDS_MI_INIT_ERR_CMDFACTORY ), m_factory.GetErrorDescription().c_str() ); + } + if( bOk && !m_invoker.Initialize() ) + { + bOk = false; + errMsg = CMIUtilString::Format( MIRSRC( IDS_MI_INIT_ERR_CMDINVOKER ), m_invoker.GetErrorDescription().c_str() ); + } + m_bInitialized = bOk; + + if( !bOk ) + { + CMIUtilString strInitError( CMIUtilString::Format( MIRSRC( IDS_MI_INIT_ERR_CMDMGR ), errMsg.c_str() ) ); + SetErrorDescription( strInitError ); + return MIstatus::failure; + } + + return MIstatus::success; +} + +//++ ------------------------------------------------------------------------------------ +// Details: Release resources for *this Command Manager. +// Type: Method. +// Args: None. +// Return: MIstatus::success - Functionality succeeded. +// MIstatus::failure - Functionality failed. +// Throws: None. +//-- +bool CMICmdMgr::Shutdown( void ) +{ + if( --m_clientUsageRefCnt > 0 ) + return MIstatus::success; + + if( !m_bInitialized ) + return MIstatus::success; + + m_bInitialized = false; + + ClrErrorDescription(); + + bool bOk = MIstatus::success; + CMIUtilString errMsg; + + // Tidy up + m_setCmdDeleteCallback.clear(); + + // Note shutdown order is important here + if( !m_invoker.Shutdown() ) + { + bOk = false; + errMsg += CMIUtilString::Format( MIRSRC( IDS_MI_SHTDWN_ERR_CMDINVOKER ), m_invoker.GetErrorDescription().c_str() ); + } + if( !m_factory.Shutdown() ) + { + bOk = false; + if( !errMsg.empty() ) errMsg += ", "; + errMsg += CMIUtilString::Format( MIRSRC( IDS_MI_SHTDWN_ERR_CMDFACTORY ), m_factory.GetErrorDescription().c_str() ); + } + if( !m_interpretor.Shutdown() ) + { + bOk = false; + if( !errMsg.empty() ) errMsg += ", "; + errMsg += CMIUtilString::Format( MIRSRC( IDS_MI_SHTDWN_ERR_CMDINTERPRETER ), m_interpretor.GetErrorDescription().c_str() ); + } + MI::ModuleShutdown< CMICmnResources >( IDS_MI_INIT_ERR_RESOURCES, bOk, errMsg ); + MI::ModuleShutdown< CMICmnLog >( IDS_MI_INIT_ERR_LOG , bOk, errMsg ); + + if( !bOk ) + { + SetErrorDescriptionn( MIRSRC( IDS_MI_SHUTDOWN_ERR ), errMsg.c_str() ); + } + + return MIstatus::success; +} + +//++ ------------------------------------------------------------------------------------ +// Details: Establish whether the text data is an MI format type command. +// Type: Method. +// Args: vTextLine - (R) Text data to interpret. +// vwbYesValid - (W) True = MI type command, false = not recognised. +// vwbCmdNotInCmdFactor - (W) True = MI command not found in the command factor, false = recognised. +// Return: MIstatus::success - Functionality succeeded. +// MIstatus::failure - Functionality failed. +// Throws: None. +//-- +bool CMICmdMgr::CmdInterpret( const CMIUtilString & vTextLine, bool & vwbYesValid, bool & vwbCmdNotInCmdFactor, SMICmdData & rwCmdData ) +{ + return m_interpretor.ValidateIsMi( vTextLine, vwbYesValid, vwbCmdNotInCmdFactor, rwCmdData ); +} + +//++ ------------------------------------------------------------------------------------ +// Details: Having previously had the potential command validated and found valid now +// get the command executed. +// If the Functionalityity returns MIstatus::failure call GetErrorDescription(). +// This function is used by the application's main thread. +// Type: Method. +// Args: vCmdData - (RW) Command meta data. +// Return: MIstatus::success - Functionality succeeded. +// MIstatus::failure - Functionality failed. +// Throws: None. +//-- +bool CMICmdMgr::CmdExecute( const SMICmdData & vCmdData ) +{ + bool bOk = MIstatus::success; + + // Pass the command's meta data structure to the command + // so it can update it if required. (Need to copy it out of the + // command before the command is deleted) + CMICmdBase * pCmd = nullptr; + bOk = m_factory.CmdCreate( vCmdData.strMiCmd, vCmdData, pCmd ); + if( !bOk ) + { + const CMIUtilString errMsg( CMIUtilString::Format( MIRSRC( IDS_CMDMGR_ERR_CMD_FAILED_CREATE ), m_factory.GetErrorDescription().c_str() ) ); + SetErrorDescription( errMsg ); + return MIstatus::failure; + } + + bOk = m_invoker.CmdExecute( *pCmd ); + if( !bOk ) + { + const CMIUtilString errMsg( CMIUtilString::Format( MIRSRC( IDS_CMDMGR_ERR_CMD_INVOKER ), m_invoker.GetErrorDescription().c_str() ) ); + SetErrorDescription( errMsg ); + return MIstatus::failure; + } + + return bOk; +} + +//++ ------------------------------------------------------------------------------------ +// Details: Iterate all interested clients and tell them a command is being deleted. +// Type: Method. +// Args: vCmdData - (RW) The command to be deleted. +// Return: MIstatus::success - Functional succeeded. +// MIstatus::failure - Functional failed. +// Throws: None. +//-- +bool CMICmdMgr::CmdDelete( SMICmdData vCmdData ) +{ + // Note vCmdData is a copy! The command holding its copy will be deleted soon + // we still need to iterate callback clients after a command object is deleted + + m_setCmdDeleteCallback.Delete( vCmdData ); + + return MIstatus::success; +} + +//++ ------------------------------------------------------------------------------------ +// Details: Register an object to be called when a command object is deleted. +// Type: Method. +// Args: vObject - (R) A new interested client. +// Return: MIstatus::success - Functional succeeded. +// MIstatus::failure - Functional failed. +// Throws: None. +//-- +bool CMICmdMgr::CmdRegisterForDeleteNotification( CMICmdMgrSetCmdDeleteCallback::ICallback & vObject ) +{ + return m_setCmdDeleteCallback.Register( vObject ); +} + +//++ ------------------------------------------------------------------------------------ +// Details: Unregister an object from being called when a command object is deleted. +// Type: Method. +// Args: vObject - (R) The was interested client. +// Return: MIstatus::success - Functional succeeded. +// MIstatus::failure - Functional failed. +// Throws: None. +//-- +bool CMICmdMgr::CmdUnregisterForDeleteNotification( CMICmdMgrSetCmdDeleteCallback::ICallback & vObject ) +{ + return m_setCmdDeleteCallback.Unregister( vObject ); +} |