609010d063
Summary: We now have valid files that will return NULL from GetStream(). libedit and the LLDB gui are the only places left that need FILE* streams. Both are doing curses-like user interaction that only make sense with a real terminal anyway, so there is no need to convert them off of their use of FILE*. But we should check for null streams before enabling these features. Reviewers: JDevlieghere, jasonmolenda, labath Reviewed By: JDevlieghere, labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D68677 llvm-svn: 374197
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
//===-- CommandObjectGUI.cpp ------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "CommandObjectGUI.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/lldb-private.h"
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using namespace lldb;
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using namespace lldb_private;
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// CommandObjectGUI
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CommandObjectGUI::CommandObjectGUI(CommandInterpreter &interpreter)
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: CommandObjectParsed(interpreter, "gui",
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"Switch into the curses based GUI mode.", "gui") {}
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CommandObjectGUI::~CommandObjectGUI() {}
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bool CommandObjectGUI::DoExecute(Args &args, CommandReturnObject &result) {
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#ifndef LLDB_DISABLE_CURSES
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if (args.GetArgumentCount() == 0) {
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Debugger &debugger = GetDebugger();
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File &input = debugger.GetInputFile();
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File &output = debugger.GetOutputFile();
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if (input.GetStream() && output.GetStream() && input.GetIsRealTerminal() &&
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input.GetIsInteractive()) {
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IOHandlerSP io_handler_sp(new IOHandlerCursesGUI(debugger));
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if (io_handler_sp)
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debugger.PushIOHandler(io_handler_sp);
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result.SetStatus(eReturnStatusSuccessFinishResult);
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} else {
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result.AppendError("the gui command requires an interactive terminal.");
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result.SetStatus(eReturnStatusFailed);
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}
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} else {
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result.AppendError("the gui command takes no arguments.");
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result.SetStatus(eReturnStatusFailed);
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}
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return true;
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#else
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result.AppendError("lldb was not build with gui support");
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return false;
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#endif
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}
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