utils/src/TTYRawMode.cpp

   1 #include <stdio.h>
   2 #include "TTYRawMode.h"
   3
   4 TTYRawMode::TTYRawMode(int std_in, int std_out)
   5 {
   6         // try first stdout, but if it fails - try stdin
   7         // this helps to work with specific cases of redirected
   8         // output, like working with tee
   9         if (tcgetattr(std_out, &_ts) != 0) {
  10                 if (tcgetattr(std_in, &_ts) != 0) {
  11                         return;
  12                 }
  13                 _fd = std_in;
  14         } else {
  15                 _fd = std_out;
  16         }
  17
  18         struct termios ts_ne = _ts;
  19         cfmakeraw(&ts_ne);
  20         if (tcsetattr( _fd, TCSADRAIN, &ts_ne ) != 0) {
  21                 _fd = -1;
  22         }
  23 }
  24
  25 TTYRawMode::~TTYRawMode()
  26 {
  27         if (_fd != -1) {
  28                 if (tcsetattr(_fd, TCSADRAIN, &_ts) != 0) {
  29                         perror("~TTYRawMode - tcsetattr");
  30                 }
  31         }
  32 }
  33
  34