| //===-- 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 |