C++ SBCommandReturnObject类代码示例

void SBCommandInterpreter::ResolveCommand(const char *command_line,
                                          SBCommandReturnObject &result) {
  result.Clear();
  if (command_line && IsValid()) {
    m_opaque_ptr->ResolveCommand(command_line, result.ref());
  } else {
    result->AppendError(
        "SBCommandInterpreter or the command line is not valid");
    result->SetStatus(eReturnStatusFailed);
  }
}

void
SBCommandInterpreter::SourceInitFileInCurrentWorkingDirectory (SBCommandReturnObject &result)
{
    result.Clear();
    if (m_opaque_ptr)
    {
        m_opaque_ptr->SourceInitFile (true, result.ref());
    }
    else
    {
        result->AppendError ("SBCommandInterpreter is not valid");
        result->SetStatus (eReturnStatusFailed);
    }
}

void
Driver::ExecuteInitialCommands (bool before_file)
{
    size_t num_commands;
    std::vector<std::pair<bool, std::string> > *command_set;
    if (before_file)
        command_set = &(m_option_data.m_initial_commands);
    else
        command_set = &(m_option_data.m_after_file_commands);
    
    num_commands = command_set->size();
    SBCommandReturnObject result;
    bool old_async = GetDebugger().GetAsync();
    GetDebugger().SetAsync(false);
    for (size_t idx = 0; idx < num_commands; idx++)
    {
        bool is_file = (*command_set)[idx].first;
        const char *command = (*command_set)[idx].second.c_str();
        char command_string[PATH_MAX * 2];
        const bool dump_stream_only_if_no_immediate = true;
        const char *executed_command = command;
        if (is_file)
        {
            ::snprintf (command_string, sizeof(command_string), "command source -s %i '%s'", m_option_data.m_source_quietly, command);
            executed_command = command_string;
        }
        
        m_debugger.GetCommandInterpreter().HandleCommand (executed_command, result, false);
        if (!m_option_data.m_source_quietly || result.Succeeded() == false)
        {
            const size_t output_size = result.GetOutputSize();
            if (output_size > 0)
            {
                const char *cstr = result.GetOutput(dump_stream_only_if_no_immediate);
                if (cstr)
                    printf ("%s", cstr);
            }
            const size_t error_size = result.GetErrorSize();
            if (error_size > 0)
            {
                const char *cstr = result.GetError(dump_stream_only_if_no_immediate);
                if (cstr)
                    printf ("%s", cstr);
            }
        }
        
        if (result.Succeeded() == false)
        {
            const char *type = before_file ? "before file" : "after_file";
            if (is_file)
                ::fprintf(stderr, "Aborting %s command execution, command file: '%s' failed.\n", type, command);
            else
                ::fprintf(stderr, "Aborting %s command execution, command: '%s' failed.\n", type, command);
            break;
        }
        result.Clear();
    }
    GetDebugger().SetAsync(old_async);
}

//++ ------------------------------------------------------------------------------------
// Details:	This function allows *this driver to call on another driver to perform work
//			should this driver not be able to handle the client data input.
//			SetDriverToFallThruTo() specifies the fall through to driver.
//			Check the error message if the function returns a failure.
// Type:	Overridden.
// Args:	vCmd		- (R) Command instruction to interpret.
//			vwErrMsg	- (W) Error description on command failing.
// Return:	MIstatus::success - Command succeeded.
//			MIstatus::failure - Command failed.
// Throws:	None.
//--
bool Driver::DoFallThruToAnotherDriver( const CMIUtilString & vCmd, CMIUtilString & vwErrMsg )
{
	bool bOk = MIstatus::success;
	vwErrMsg.empty();

	// ToDo: Implement do work on other driver after this driver said "Give up you try"
	// This may nto be required if the feature to 'fall through' is not required
	SBCommandReturnObject returnObj = lldb::SBCommandReturnObject();
	SBCommandInterpreter cmdIntrp = m_debugger.GetCommandInterpreter();
    const lldb::ReturnStatus cmdResult = cmdIntrp.HandleCommand( vCmd.c_str(), returnObj ); MIunused( cmdResult );
	if( returnObj.Succeeded() == false )
	{
		bOk = MIstatus::failure;
		vwErrMsg = returnObj.GetError();
	}
	
	return bOk;
}

lldb::ReturnStatus SBCommandInterpreter::HandleCommand(
    const char *command_line, SBExecutionContext &override_context,
    SBCommandReturnObject &result, bool add_to_history) {
  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));

  if (log)
    log->Printf("SBCommandInterpreter(%p)::HandleCommand (command=\"%s\", "
                "SBCommandReturnObject(%p), add_to_history=%i)",
                static_cast<void *>(m_opaque_ptr), command_line,
                static_cast<void *>(result.get()), add_to_history);

  ExecutionContext ctx, *ctx_ptr;
  if (override_context.get()) {
    ctx = override_context.get()->Lock(true);
    ctx_ptr = &ctx;
  } else
    ctx_ptr = nullptr;

  result.Clear();
  if (command_line && IsValid()) {
    result.ref().SetInteractive(false);
    m_opaque_ptr->HandleCommand(command_line,
                                add_to_history ? eLazyBoolYes : eLazyBoolNo,
                                result.ref(), ctx_ptr);
  } else {
    result->AppendError(
        "SBCommandInterpreter or the command line is not valid");
    result->SetStatus(eReturnStatusFailed);
  }

  // We need to get the value again, in case the command disabled the log!
  log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API);
  if (log) {
    SBStream sstr;
    result.GetDescription(sstr);
    log->Printf("SBCommandInterpreter(%p)::HandleCommand (command=\"%s\", "
                "SBCommandReturnObject(%p): %s, add_to_history=%i) => %i",
                static_cast<void *>(m_opaque_ptr), command_line,
                static_cast<void *>(result.get()), sstr.GetData(),
                add_to_history, result.GetStatus());
  }

  return result.GetStatus();
}

void SBCommandInterpreter::SourceInitFileInCurrentWorkingDirectory(
    SBCommandReturnObject &result) {
  result.Clear();
  if (IsValid()) {
    TargetSP target_sp(m_opaque_ptr->GetDebugger().GetSelectedTarget());
    std::unique_lock<std::recursive_mutex> lock;
    if (target_sp)
      lock = std::unique_lock<std::recursive_mutex>(target_sp->GetAPIMutex());
    m_opaque_ptr->SourceInitFile(true, result.ref());
  } else {
    result->AppendError("SBCommandInterpreter is not valid");
    result->SetStatus(eReturnStatusFailed);
  }
  Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));

  if (log)
    log->Printf(
        "SBCommandInterpreter(%p)::SourceInitFileInCurrentWorkingDirectory "
        "(&SBCommandReturnObject(%p))",
        static_cast<void *>(m_opaque_ptr), static_cast<void *>(result.get()));
}

void
SBCommandInterpreter::SourceInitFileInCurrentWorkingDirectory (SBCommandReturnObject &result)
{
    result.Clear();
    if (m_opaque_ptr)
    {
        TargetSP target_sp(m_opaque_ptr->GetDebugger().GetSelectedTarget());
        Mutex::Locker api_locker;
        if (target_sp)
            api_locker.Lock(target_sp->GetAPIMutex());
        m_opaque_ptr->SourceInitFile (true, result.ref());
    }
    else
    {
        result->AppendError ("SBCommandInterpreter is not valid");
        result->SetStatus (eReturnStatusFailed);
    }
    LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));

    if (log)
        log->Printf ("SBCommandInterpreter(%p)::SourceInitFileInCurrentWorkingDirectory (&SBCommandReturnObject(%p))", 
                     m_opaque_ptr, result.get());
}

void
SBDebugger::HandleCommand (const char *command)
{
    if (m_opaque_sp)
    {
        TargetSP target_sp (m_opaque_sp->GetSelectedTarget());
        Mutex::Locker api_locker;
        if (target_sp)
            api_locker.Lock(target_sp->GetAPIMutex());

        SBCommandInterpreter sb_interpreter(GetCommandInterpreter ());
        SBCommandReturnObject result;

        sb_interpreter.HandleCommand (command, result, false);

        if (GetErrorFileHandle() != NULL)
            result.PutError (GetErrorFileHandle());
        if (GetOutputFileHandle() != NULL)
            result.PutOutput (GetOutputFileHandle());

        if (m_opaque_sp->GetAsyncExecution() == false)
        {
            SBProcess process(GetCommandInterpreter().GetProcess ());
            ProcessSP process_sp (process.GetSP());
            if (process_sp)
            {
                EventSP event_sp;
                Listener &lldb_listener = m_opaque_sp->GetListener();
                while (lldb_listener.GetNextEventForBroadcaster (process_sp.get(), event_sp))
                {
                    SBEvent event(event_sp);
                    HandleProcessEvent (process, event, GetOutputFileHandle(), GetErrorFileHandle());
                }
            }
        }
    }
}

void
SBProcess::AppendEventStateReport (const SBEvent &event, SBCommandReturnObject &result)
{
    if (m_opaque_sp)
    {
        const StateType event_state = SBProcess::GetStateFromEvent (event);
        char message[1024];
        ::snprintf (message,
                    sizeof (message),
                    "Process %d %s\n",
                    m_opaque_sp->GetID(),
                    SBDebugger::StateAsCString (event_state));

        result.AppendMessage (message);
    }
}

lldb::ReturnStatus
SBCommandInterpreter::HandleCommand (const char *command_line, SBCommandReturnObject &result, bool add_to_history)
{
    LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));

    if (log)
        log->Printf ("SBCommandInterpreter(%p)::HandleCommand (command=\"%s\", SBCommandReturnObject(%p), add_to_history=%i)", 
                     m_opaque_ptr, command_line, result.get(), add_to_history);

    result.Clear();
    if (command_line && m_opaque_ptr)
    {
        TargetSP target_sp(m_opaque_ptr->GetDebugger().GetSelectedTarget());
        Mutex::Locker api_locker;
        if (target_sp)
            api_locker.Lock(target_sp->GetAPIMutex());
        m_opaque_ptr->HandleCommand (command_line, add_to_history ? eLazyBoolYes : eLazyBoolNo, result.ref());
    }
    else
    {
        result->AppendError ("SBCommandInterpreter or the command line is not valid");
        result->SetStatus (eReturnStatusFailed);
    }

    // We need to get the value again, in case the command disabled the log!
    log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API);
    if (log)
    {
        SBStream sstr;
        result.GetDescription (sstr);
        log->Printf ("SBCommandInterpreter(%p)::HandleCommand (command=\"%s\", SBCommandReturnObject(%p): %s, add_to_history=%i) => %i", 
                     m_opaque_ptr, command_line, result.get(), sstr.GetData(), add_to_history, result.GetStatus());
    }

    return result.GetStatus();
}

void
Driver::MainLoop ()
{
    if (::tcgetattr(STDIN_FILENO, &g_old_stdin_termios) == 0)
    {
        g_old_stdin_termios_is_valid = true;
        atexit (reset_stdin_termios);
    }

    ::setbuf (stdin, NULL);
    ::setbuf (stdout, NULL);

    m_debugger.SetErrorFileHandle (stderr, false);
    m_debugger.SetOutputFileHandle (stdout, false);
    m_debugger.SetInputFileHandle (stdin, false); // Don't take ownership of STDIN yet...

    m_debugger.SetUseExternalEditor(m_option_data.m_use_external_editor);

    struct winsize window_size;
    if (isatty (STDIN_FILENO)
        && ::ioctl (STDIN_FILENO, TIOCGWINSZ, &window_size) == 0)
    {
        if (window_size.ws_col > 0)
            m_debugger.SetTerminalWidth (window_size.ws_col);
    }

    SBCommandInterpreter sb_interpreter = m_debugger.GetCommandInterpreter();
    
    // Before we handle any options from the command line, we parse the
    // .lldbinit file in the user's home directory.
    SBCommandReturnObject result;
    sb_interpreter.SourceInitFileInHomeDirectory(result);
    if (GetDebugMode())
    {
        result.PutError (m_debugger.GetErrorFileHandle());
        result.PutOutput (m_debugger.GetOutputFileHandle());
    }

    // Now we handle options we got from the command line
    SBStream commands_stream;
    
    // First source in the commands specified to be run before the file arguments are processed.
    WriteCommandsForSourcing(eCommandPlacementBeforeFile, commands_stream);
        
    const size_t num_args = m_option_data.m_args.size();
    if (num_args > 0)
    {
        char arch_name[64];
        if (m_debugger.GetDefaultArchitecture (arch_name, sizeof (arch_name)))
            commands_stream.Printf("target create --arch=%s %s", arch_name, EscapeString(m_option_data.m_args[0]).c_str());
        else
            commands_stream.Printf("target create %s", EscapeString(m_option_data.m_args[0]).c_str());

        if (!m_option_data.m_core_file.empty())
        {
            commands_stream.Printf(" --core %s", EscapeString(m_option_data.m_core_file).c_str());
        }
        commands_stream.Printf("\n");
        
        if (num_args > 1)
        {
            commands_stream.Printf ("settings set -- target.run-args ");
            for (size_t arg_idx = 1; arg_idx < num_args; ++arg_idx)
                commands_stream.Printf(" %s", EscapeString(m_option_data.m_args[arg_idx]).c_str());
            commands_stream.Printf("\n");
        }
    }
    else if (!m_option_data.m_core_file.empty())
    {
        commands_stream.Printf("target create --core %s\n", EscapeString(m_option_data.m_core_file).c_str());
    }
    else if (!m_option_data.m_process_name.empty())
    {
        commands_stream.Printf ("process attach --name %s", EscapeString(m_option_data.m_process_name).c_str());
        
        if (m_option_data.m_wait_for)
            commands_stream.Printf(" --waitfor");

        commands_stream.Printf("\n");

    }
    else if (LLDB_INVALID_PROCESS_ID != m_option_data.m_process_pid)
    {
        commands_stream.Printf ("process attach --pid %" PRIu64 "\n", m_option_data.m_process_pid);
    }

    WriteCommandsForSourcing(eCommandPlacementAfterFile, commands_stream);
    
    if (GetDebugMode())
    {
        result.PutError(m_debugger.GetErrorFileHandle());
        result.PutOutput(m_debugger.GetOutputFileHandle());
    }
    
    bool handle_events = true;
    bool spawn_thread = false;

    if (m_option_data.m_repl)
    {
        const char *repl_options = NULL;
//.........这里部分代码省略.........

void
Driver::MainLoop ()
{
    if (::tcgetattr(STDIN_FILENO, &g_old_stdin_termios) == 0)
    {
        g_old_stdin_termios_is_valid = true;
        atexit (reset_stdin_termios);
    }

    ::setbuf (stdin, NULL);
    ::setbuf (stdout, NULL);

    m_debugger.SetErrorFileHandle (stderr, false);
    m_debugger.SetOutputFileHandle (stdout, false);
    m_debugger.SetInputFileHandle (stdin, true);
    
    m_debugger.SetUseExternalEditor(m_option_data.m_use_external_editor);

    struct winsize window_size;
    if (isatty (STDIN_FILENO)
        && ::ioctl (STDIN_FILENO, TIOCGWINSZ, &window_size) == 0)
    {
        if (window_size.ws_col > 0)
            m_debugger.SetTerminalWidth (window_size.ws_col);
    }

    SBCommandInterpreter sb_interpreter = m_debugger.GetCommandInterpreter();
    
    // Before we handle any options from the command line, we parse the
    // .lldbinit file in the user's home directory.
    SBCommandReturnObject result;
    sb_interpreter.SourceInitFileInHomeDirectory(result);
    if (GetDebugMode())
    {
        result.PutError (m_debugger.GetErrorFileHandle());
        result.PutOutput (m_debugger.GetOutputFileHandle());
    }

    // Now we handle options we got from the command line
    // First source in the commands specified to be run before the file arguments are processed.
    ExecuteInitialCommands(true);
    
    // Was there a core file specified?
    std::string core_file_spec("");
    if (!m_option_data.m_core_file.empty())
        core_file_spec.append("--core ").append(m_option_data.m_core_file);
    
    char command_string[PATH_MAX * 2];
    const size_t num_args = m_option_data.m_args.size();
    if (num_args > 0)
    {
        char arch_name[64];
        if (m_debugger.GetDefaultArchitecture (arch_name, sizeof (arch_name)))
            ::snprintf (command_string,
                        sizeof (command_string),
                        "target create --arch=%s %s \"%s\"",
                        arch_name,
                        core_file_spec.c_str(),
                        m_option_data.m_args[0].c_str());
        else
            ::snprintf (command_string,
                        sizeof(command_string),
                        "target create %s \"%s\"",
                        core_file_spec.c_str(),
                        m_option_data.m_args[0].c_str());
        
        m_debugger.HandleCommand (command_string);
        
        if (num_args > 1)
        {
            m_debugger.HandleCommand ("settings clear target.run-args");
            char arg_cstr[1024];
            for (size_t arg_idx = 1; arg_idx < num_args; ++arg_idx)
            {
                ::snprintf (arg_cstr,
                            sizeof(arg_cstr),
                            "settings append target.run-args \"%s\"",
                            m_option_data.m_args[arg_idx].c_str());
                m_debugger.HandleCommand (arg_cstr);
            }
        }
    }
    else if (!core_file_spec.empty())
    {
        ::snprintf (command_string,
                    sizeof(command_string),
                    "target create %s",
                    core_file_spec.c_str());
        m_debugger.HandleCommand (command_string);;
    }
    else if (!m_option_data.m_process_name.empty())
    {
        ::snprintf (command_string, 
                    sizeof(command_string), 
                    "process attach --name '%s'%s", 
                    m_option_data.m_process_name.c_str(), 
                    m_option_data.m_wait_for ? " --waitfor" : "");
        m_debugger.HandleCommand (command_string);
    }
    else if (LLDB_INVALID_PROCESS_ID != m_option_data.m_process_pid)
//.........这里部分代码省略.........

void
Driver::MainLoop ()
{
    if (::tcgetattr(STDIN_FILENO, &g_old_stdin_termios) == 0)
    {
        g_old_stdin_termios_is_valid = true;
        atexit (reset_stdin_termios);
    }

    ::setbuf (stdin, NULL);
    ::setbuf (stdout, NULL);

    m_debugger.SetErrorFileHandle (stderr, false);
    m_debugger.SetOutputFileHandle (stdout, false);
    m_debugger.SetInputFileHandle (stdin, false); // Don't take ownership of STDIN yet...

    m_debugger.SetUseExternalEditor(m_option_data.m_use_external_editor);

    struct winsize window_size;
    if (isatty (STDIN_FILENO)
        && ::ioctl (STDIN_FILENO, TIOCGWINSZ, &window_size) == 0)
    {
        if (window_size.ws_col > 0)
            m_debugger.SetTerminalWidth (window_size.ws_col);
    }

    SBCommandInterpreter sb_interpreter = m_debugger.GetCommandInterpreter();
    
    // Before we handle any options from the command line, we parse the
    // .lldbinit file in the user's home directory.
    SBCommandReturnObject result;
    sb_interpreter.SourceInitFileInHomeDirectory(result);
    if (GetDebugMode())
    {
        result.PutError (m_debugger.GetErrorFileHandle());
        result.PutOutput (m_debugger.GetOutputFileHandle());
    }

    // Now we handle options we got from the command line
    SBStream commands_stream;
    
    // First source in the commands specified to be run before the file arguments are processed.
    WriteInitialCommands(true, commands_stream);
        
    const size_t num_args = m_option_data.m_args.size();
    if (num_args > 0)
    {
        char arch_name[64];
        if (m_debugger.GetDefaultArchitecture (arch_name, sizeof (arch_name)))
            commands_stream.Printf("target create --arch=%s \"%s\"", arch_name, m_option_data.m_args[0].c_str());
        else
            commands_stream.Printf("target create \"%s\"", m_option_data.m_args[0].c_str());

        if (!m_option_data.m_core_file.empty())
        {
            commands_stream.Printf(" --core \"%s\"", m_option_data.m_core_file.c_str());
        }
        commands_stream.Printf("\n");
        
        if (num_args > 1)
        {
            commands_stream.Printf ("settings set -- target.run-args ");
            for (size_t arg_idx = 1; arg_idx < num_args; ++arg_idx)
            {
                const char *arg_cstr = m_option_data.m_args[arg_idx].c_str();
                if (strchr(arg_cstr, '"') == NULL)
                    commands_stream.Printf(" \"%s\"", arg_cstr);
                else
                    commands_stream.Printf(" '%s'", arg_cstr);
            }
            commands_stream.Printf("\n");
        }
    }
    else if (!m_option_data.m_core_file.empty())
    {
        commands_stream.Printf("target create --core \"%s\"\n", m_option_data.m_core_file.c_str());
    }
    else if (!m_option_data.m_process_name.empty())
    {
        commands_stream.Printf ("process attach --name \"%s\"", m_option_data.m_process_name.c_str());
        
        if (m_option_data.m_wait_for)
            commands_stream.Printf(" --waitfor");

        commands_stream.Printf("\n");

    }
    else if (LLDB_INVALID_PROCESS_ID != m_option_data.m_process_pid)
    {
        commands_stream.Printf ("process attach --pid %" PRIu64 "\n", m_option_data.m_process_pid);
    }

    WriteInitialCommands(false, commands_stream);
    
    // Now that all option parsing is done, we try and parse the .lldbinit
    // file in the current working directory
    sb_interpreter.SourceInitFileInCurrentWorkingDirectory (result);
    if (GetDebugMode())
    {
        result.PutError(m_debugger.GetErrorFileHandle());
//.........这里部分代码省略.........