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📄 Config.h.cmake(1.2 KB)
📄 ConnectionFileDescriptor.h(528 B)
📄 Debug.h(4.44 KB)
📄 Editline.h(12.4 KB)
📄 File.h(15.26 KB)
📄 FileAction.h(1.35 KB)
📄 FileCache.h(1.29 KB)
📄 FileSystem.h(6.84 KB)
📄 Host.h(10.04 KB)
📄 HostGetOpt.h(699 B)
📄 HostInfo.h(2.6 KB)
📄 HostInfoBase.h(4.05 KB)
📄 HostNativeProcess.h(728 B)
📄 HostNativeProcessBase.h(1.43 KB)
📄 HostNativeThread.h(690 B)
📄 HostNativeThreadBase.h(1.46 KB)
📄 HostNativeThreadForward.h(753 B)
📄 HostProcess.h(1.7 KB)
📄 HostThread.h(1.32 KB)
📄 LZMA.h(883 B)
📄 LockFile.h(704 B)
📄 LockFileBase.h(1.52 KB)
📄 MainLoop.h(3.83 KB)
📄 MainLoopBase.h(2.91 KB)
📄 MonitoringProcessLauncher.h(1.12 KB)
📄 OptionParser.h(1.51 KB)
📄 Pipe.h(668 B)
📄 PipeBase.h(2.26 KB)
📄 PosixApi.h(743 B)
📄 ProcessLaunchInfo.h(5.36 KB)
📄 ProcessLauncher.h(735 B)
📄 ProcessRunLock.h(2.02 KB)
📄 PseudoTerminal.h(8.45 KB)
📄 SafeMachO.h(3.25 KB)
📄 Socket.h(4.56 KB)
📄 SocketAddress.h(5.77 KB)
📄 StringConvert.h(1.26 KB)
📄 Terminal.h(5.12 KB)
📄 ThreadLauncher.h(1.39 KB)
📄 Time.h(718 B)
📄 XML.h(4.7 KB)
📁 common
📁 freebsd
📁 netbsd
📁 openbsd
📁 posix

Editing: Terminal.h

//===-- Terminal.h ----------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLDB_HOST_TERMINAL_H
#define LLDB_HOST_TERMINAL_H
#if defined(__cplusplus)

#include "lldb/Host/Config.h"
#include "lldb/lldb-private.h"

struct termios;

namespace lldb_private {

class Terminal {
public:
  Terminal(int fd = -1) : m_fd(fd) {}

~Terminal() {}

bool IsATerminal() const;

int GetFileDescriptor() const { return m_fd; }

void SetFileDescriptor(int fd) { m_fd = fd; }

bool FileDescriptorIsValid() const { return m_fd != -1; }

void Clear() { m_fd = -1; }

bool SetEcho(bool enabled);

bool SetCanonical(bool enabled);

protected:
  int m_fd; // This may or may not be a terminal file descriptor
};

/// \class State Terminal.h "lldb/Host/Terminal.h"
/// A terminal state saving/restoring class.
///
/// This class can be used to remember the terminal state for a file
/// descriptor and later restore that state as it originally was.
class TerminalState {
public:
  /// Default constructor
  TerminalState();

/// Destructor
  ~TerminalState();

/// Save the TTY state for \a fd.
  ///
  /// Save the current state of the TTY for the file descriptor "fd" and if
  /// "save_process_group" is true, attempt to save the process group info for
  /// the TTY.
  ///
  /// \param[in] fd
  ///     The file descriptor to save the state of.
  ///
  /// \param[in] save_process_group
  ///     If \b true, save the process group settings, else do not
  ///     save the process group settings for a TTY.
  ///
  /// \return
  ///     Returns \b true if \a fd describes a TTY and if the state
  ///     was able to be saved, \b false otherwise.
  bool Save(int fd, bool save_process_group);

/// Restore the TTY state to the cached state.
  ///
  /// Restore the state of the TTY using the cached values from a previous
  /// call to TerminalState::Save(int,bool).
  ///
  /// \return
  ///     Returns \b true if the TTY state was successfully restored,
  ///     \b false otherwise.
  bool Restore() const;

/// Test for valid cached TTY state information.
  ///
  /// \return
  ///     Returns \b true if this object has valid saved TTY state
  ///     settings that can be used to restore a previous state,
  ///     \b false otherwise.
  bool IsValid() const;

void Clear();

protected:
  /// Test if tflags is valid.
  ///
  /// \return
  ///     Returns \b true if \a m_tflags is valid and can be restored,
  ///     \b false otherwise.
  bool TFlagsIsValid() const;

/// Test if ttystate is valid.
  ///
  /// \return
  ///     Returns \b true if \a m_ttystate is valid and can be
  ///     restored, \b false otherwise.
  bool TTYStateIsValid() const;

/// Test if the process group information is valid.
  ///
  /// \return
  ///     Returns \b true if \a m_process_group is valid and can be
  ///     restored, \b false otherwise.
  bool ProcessGroupIsValid() const;

// Member variables
  Terminal m_tty; ///< A terminal
  int m_tflags;   ///< Cached tflags information.
#if LLDB_ENABLE_TERMIOS
  std::unique_ptr<struct termios>
      m_termios_up; ///< Cached terminal state information.
#endif
  lldb::pid_t m_process_group; ///< Cached process group information.
};

/// \class TerminalStateSwitcher Terminal.h "lldb/Host/Terminal.h"
/// A TTY state switching class.
///
/// This class can be used to remember 2 TTY states for a given file
/// descriptor and switch between the two states.
class TerminalStateSwitcher {
public:
  /// Constructor
  TerminalStateSwitcher();

/// Destructor
  ~TerminalStateSwitcher();

/// Get the number of possible states to save.
  ///
  /// \return
  ///     The number of states that this TTY switcher object contains.
  uint32_t GetNumberOfStates() const;

/// Restore the TTY state for state at index \a idx.
  ///
  /// \return
  ///     Returns \b true if the TTY state was successfully restored,
  ///     \b false otherwise.
  bool Restore(uint32_t idx) const;

/// Save the TTY state information for the state at index \a idx. The TTY
  /// state is saved for the file descriptor \a fd and the process group
  /// information will also be saved if requested by \a save_process_group.
  ///
  /// \param[in] idx
  ///     The index into the state array where the state should be
  ///     saved.
  ///
  /// \param[in] fd
  ///     The file descriptor for which to save the settings.
  ///
  /// \param[in] save_process_group
  ///     If \b true, save the process group information for the TTY.
  ///
  /// \return
  ///     Returns \b true if the save was successful, \b false
  ///     otherwise.
  bool Save(uint32_t idx, int fd, bool save_process_group);

protected:
  // Member variables
  mutable uint32_t m_currentState; ///< The currently active TTY state index.
  TerminalState
      m_ttystates[2]; ///< The array of TTY states that holds saved TTY info.
};

} // namespace lldb_private

#endif // #if defined(__cplusplus)
#endif // LLDB_HOST_TERMINAL_H

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Editing: Terminal.h

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