hanchenye-llvm-project/lldb/tools/lldb-mi/MICmdCmdEnviro.cpp

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

//++
// File:        MICmdCmdEnviro.cpp
//
// Overview:    CMICmdCmdEnvironmentCd          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 "MICmdCmdEnviro.h"
#include "MICmnMIResultRecord.h"
#include "MICmnMIValueConst.h"
#include "MICmnLLDBDebugger.h"
#include "MICmnLLDBDebugSessionInfo.h"
#include "MICmdArgValFile.h"

//++ ------------------------------------------------------------------------------------
// Details: CMICmdCmdEnvironmentCd constructor.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdCmdEnvironmentCd::CMICmdCmdEnvironmentCd(void)
    : m_constStrArgNamePathDir("pathdir")
{
    // Command factory matches this name with that received from the stdin stream
    m_strMiCmd = "environment-cd";

    // Required by the CMICmdFactory when registering *this command
    m_pSelfCreatorFn = &CMICmdCmdEnvironmentCd::CreateSelf;
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdCmdEnvironmentCd destructor.
// Type:    Overrideable.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdCmdEnvironmentCd::~CMICmdCmdEnvironmentCd(void)
{
}

//++ ------------------------------------------------------------------------------------
// Details: The invoker requires this function. The parses the command line options
//          arguments to extract values for each of those arguments.
// Type:    Overridden.
// Args:    None.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdCmdEnvironmentCd::ParseArgs(void)
{
    bool bOk = m_setCmdArgs.Add(*(new CMICmdArgValFile(m_constStrArgNamePathDir, true, true)));
    CMICmdArgContext argCntxt(m_cmdData.strMiCmdOption);
    return (bOk && ParseValidateCmdOptions());
}

//++ ------------------------------------------------------------------------------------
// Details: The invoker requires this function. The command does work in this function.
//          The command is likely to communicate with the LLDB SBDebugger in here.
// Type:    Overridden.
// Args:    None.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdCmdEnvironmentCd::Execute(void)
{
    CMICMDBASE_GETOPTION(pArgPathDir, File, m_constStrArgNamePathDir);
    const CMIUtilString &strWkDir(pArgPathDir->GetValue());
    CMICmnLLDBDebugger &rDbg(CMICmnLLDBDebugger::Instance());
    lldb::SBDebugger &rLldbDbg = rDbg.GetTheDebugger();
    bool bOk = rLldbDbg.SetCurrentPlatformSDKRoot(strWkDir.c_str());
    if (bOk)
    {
        const CMIUtilString &rStrKeyWkDir(m_rLLDBDebugSessionInfo.m_constStrSharedDataKeyWkDir);
        if (!m_rLLDBDebugSessionInfo.SharedDataAdd<CMIUtilString>(rStrKeyWkDir, strWkDir))
        {
            SetError(CMIUtilString::Format(MIRSRC(IDS_DBGSESSION_ERR_SHARED_DATA_ADD), m_cmdData.strMiCmd.c_str(), rStrKeyWkDir.c_str()));
            bOk = MIstatus::failure;
        }
    }
    else
        SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_FNFAILED), m_cmdData.strMiCmd.c_str(), "SetCurrentPlatformSDKRoot()"));

    return bOk;
}

//++ ------------------------------------------------------------------------------------
// Details: The invoker requires this function. The command prepares a MI Record Result
//          for the work carried out in the Execute().
// Type:    Overridden.
// Args:    None.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdCmdEnvironmentCd::Acknowledge(void)
{
    const CMIUtilString &rStrKeyWkDir(m_rLLDBDebugSessionInfo.m_constStrSharedDataKeyWkDir);
    CMIUtilString strWkDir;
    const bool bOk = m_rLLDBDebugSessionInfo.SharedDataRetrieve<CMIUtilString>(rStrKeyWkDir, strWkDir);
    if (bOk)
    {
        const CMICmnMIValueConst miValueConst(strWkDir);
        const CMICmnMIValueResult miValueResult("path", miValueConst);
        const CMICmnMIResultRecord miRecordResult(m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done, miValueResult);
        m_miResultRecord = miRecordResult;
        return MIstatus::success;
    }

    SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_SHARED_DATA_NOT_FOUND), m_cmdData.strMiCmd.c_str(), rStrKeyWkDir.c_str()));
    return MIstatus::failure;
}

//++ ------------------------------------------------------------------------------------
// Details: Required by the CMICmdFactory when registering *this command. The factory
//          calls this function to create an instance of *this command.
// Type:    Static method.
// Args:    None.
// Return:  CMICmdBase * - Pointer to a new command.
// Throws:  None.
//--
CMICmdBase *
CMICmdCmdEnvironmentCd::CreateSelf(void)
{
    return new CMICmdCmdEnvironmentCd();
}