/[projects]/smsdaemon/kbhit.cpp
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Diff of /smsdaemon/kbhit.cpp

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revision 27 by torben, Mon Jun 9 19:22:59 2008 UTC revision 196 by torben, Thu Dec 18 06:53:29 2008 UTC
# Line 32  void cooked(void) Line 32  void cooked(void)
32  void raw(void)  void raw(void)
33  {  {
34          static char init;          static char init;
35  /**/          /**/
36          struct termios new_kbd_mode;          struct termios new_kbd_mode;
37    
38          if(init)          if (init)
39                  return;                  return;
40  /* put keyboard (stdin, actually) in raw, unbuffered mode */          /* put keyboard (stdin, actually) in raw, unbuffered mode */
41          tcgetattr(0, &g_old_kbd_mode);          tcgetattr(0, &g_old_kbd_mode);
42          memcpy(&new_kbd_mode, &g_old_kbd_mode, sizeof(struct termios));          memcpy(&new_kbd_mode, &g_old_kbd_mode, sizeof(struct termios));
43          new_kbd_mode.c_lflag &= ~(ICANON | ECHO);          new_kbd_mode.c_lflag &= ~(ICANON | ECHO);
44          new_kbd_mode.c_cc[VTIME] = 0;          new_kbd_mode.c_cc[VTIME] = 0;
45          new_kbd_mode.c_cc[VMIN] = 1;          new_kbd_mode.c_cc[VMIN] = 1;
46          tcsetattr(0, TCSANOW, &new_kbd_mode);          tcsetattr(0, TCSANOW, &new_kbd_mode);
47  /* when we exit, go back to normal, "cooked" mode */          /* when we exit, go back to normal, "cooked" mode */
48          atexit(cooked);          atexit(cooked);
49    
50          init = 1;          init = 1;
# Line 58  int kbhit(void) Line 58  int kbhit(void)
58          int status;          int status;
59    
60          raw();          raw();
61  /* check stdin (fd 0) for activity */          /* check stdin (fd 0) for activity */
62          FD_ZERO(&read_handles);          FD_ZERO(&read_handles);
63          FD_SET(0, &read_handles);          FD_SET(0, &read_handles);
64          timeout.tv_sec = timeout.tv_usec = 0;          timeout.tv_sec = timeout.tv_usec = 0;
65          status = select(0 + 1, &read_handles, NULL, NULL, &timeout);          status = select(0 + 1, &read_handles, NULL, NULL, &timeout);
66          if(status < 0)          if (status < 0)
67          {          {
68                  printf("select() failed in kbhit()\n");                  printf("select() failed in kbhit()\n");
69                  exit(1);                  exit(1);
# Line 77  int getch(void) Line 77  int getch(void)
77          unsigned char temp;          unsigned char temp;
78    
79          raw();          raw();
80  /* stdin = fd 0 */          /* stdin = fd 0 */
81          if(read(0, &temp, 1) != 1)          if (read(0, &temp, 1) != 1)
82                  return 0;                  return 0;
83          return temp;          return temp;
84  }  }
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