ceff6644bb
This patch removes the comments grouping header includes. They were added after running IWYU over the LLDB codebase. However they add little value, are often outdates and burdensome to maintain. llvm-svn: 346626
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
//===-- TTYState.h ----------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Created by Greg Clayton on 3/26/07.
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//
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//===----------------------------------------------------------------------===//
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#ifndef __TTYState_h__
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#define __TTYState_h__
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#include <stdint.h>
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#include <termios.h>
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class TTYState {
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public:
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TTYState();
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~TTYState();
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bool GetTTYState(int fd, bool saveProcessGroup);
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bool SetTTYState() const;
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bool IsValid() const {
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return FileDescriptorValid() && TFlagsValid() && TTYStateValid();
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}
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bool FileDescriptorValid() const { return m_fd >= 0; }
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bool TFlagsValid() const { return m_tflags != -1; }
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bool TTYStateValid() const { return m_ttystateErr == 0; }
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bool ProcessGroupValid() const { return m_processGroup != -1; }
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protected:
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int m_fd; // File descriptor
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int m_tflags;
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int m_ttystateErr;
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struct termios m_ttystate;
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pid_t m_processGroup;
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};
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class TTYStateSwitcher {
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public:
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TTYStateSwitcher();
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~TTYStateSwitcher();
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bool GetState(uint32_t idx, int fd, bool saveProcessGroup);
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bool SetState(uint32_t idx) const;
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uint32_t NumStates() const { return sizeof(m_ttystates) / sizeof(TTYState); }
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bool ValidStateIndex(uint32_t idx) const { return idx < NumStates(); }
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protected:
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mutable uint32_t m_currentState;
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TTYState m_ttystates[2];
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};
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#endif
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