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//===-- MIUtilTermios.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//++
// File: MIUtilTermios.cpp
//
// Overview: Terminal setting termios functions.
//
// Environment: Compilers: Visual C++ 12.
// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
// Libraries: See MIReadmetxt.
//
// Copyright: None.
//--
// Third party headers:
#include <stdlib.h>
// In-house headers:
#include "MIUtilTermios.h"
#include "Platform.h"
namespace MIUtilTermios
{
// Instantiations:
static bool g_bOldStdinTermiosIsValid = false; // True = yes valid, false = no valid
static struct termios g_sOldStdinTermios;
//++ ------------------------------------------------------------------------------------
// Details: Reset the terminal settings. This function is added as an ::atexit handler
// to make sure we clean up. See StdinTerminosSet().
// Type: Global function.
// Args: None.
// Return: None.
// Throws: None.
//--
void
StdinTermiosReset(void)
{
if (g_bOldStdinTermiosIsValid)
{
g_bOldStdinTermiosIsValid = false;
::tcsetattr(STDIN_FILENO, TCSANOW, &g_sOldStdinTermios);
}
}
//++ ------------------------------------------------------------------------------------
// Details: Set the terminal settings function. StdinTermiosReset() is called when to
// reset to this to before and application exit.
// Type: Global function.
// Args: None.
// Return: None.
// Throws: None.
//--
void
StdinTermiosSet(void)
{
if (::tcgetattr(STDIN_FILENO, &g_sOldStdinTermios) == 0)
{
g_bOldStdinTermiosIsValid = true;
::atexit(StdinTermiosReset);
}
}
} // namespace MIUtilTermios
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