mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-11-10 02:08:20 +00:00
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/*****************************************************************************
|
|
kbhit() and getch() for Linux/UNIX
|
|
Chris Giese <geezer@execpc.com> http://my.execpc.com/~geezer
|
|
Release date: ?
|
|
This code is public domain (no copyright).
|
|
You can do whatever you want with it.
|
|
*****************************************************************************/
|
|
#if !defined(linux)
|
|
#include <conio.h> /* kbhit(), getch() */
|
|
|
|
#else
|
|
#include <sys/time.h> /* struct timeval, select() */
|
|
/* ICANON, ECHO, TCSANOW, struct termios */
|
|
#include <termios.h> /* tcgetattr(), tcsetattr() */
|
|
#include <stdlib.h> /* atexit(), exit() */
|
|
#include <unistd.h> /* read() */
|
|
#include <stdio.h> /* printf() */
|
|
#include <string.h> /* memcpy */
|
|
|
|
static struct termios g_old_kbd_mode;
|
|
/*****************************************************************************
|
|
*****************************************************************************/
|
|
static void cooked(void)
|
|
{
|
|
tcsetattr(0, TCSANOW, &g_old_kbd_mode);
|
|
}
|
|
/*****************************************************************************
|
|
*****************************************************************************/
|
|
static void raw(void)
|
|
{
|
|
static char init;
|
|
/**/
|
|
struct termios new_kbd_mode;
|
|
|
|
if(init)
|
|
return;
|
|
/* put keyboard (stdin, actually) in raw, unbuffered mode */
|
|
tcgetattr(0, &g_old_kbd_mode);
|
|
memcpy(&new_kbd_mode, &g_old_kbd_mode, sizeof(struct termios));
|
|
new_kbd_mode.c_lflag &= ~(ICANON | ECHO);
|
|
new_kbd_mode.c_cc[VTIME] = 0;
|
|
new_kbd_mode.c_cc[VMIN] = 1;
|
|
tcsetattr(0, TCSANOW, &new_kbd_mode);
|
|
/* when we exit, go back to normal, "cooked" mode */
|
|
atexit(cooked);
|
|
|
|
init = 1;
|
|
}
|
|
/*****************************************************************************
|
|
*****************************************************************************/
|
|
static int kbhit(void)
|
|
{
|
|
struct timeval timeout;
|
|
fd_set read_handles;
|
|
int status;
|
|
|
|
raw();
|
|
/* check stdin (fd 0) for activity */
|
|
FD_ZERO(&read_handles);
|
|
FD_SET(0, &read_handles);
|
|
timeout.tv_sec = timeout.tv_usec = 0;
|
|
status = select(0 + 1, &read_handles, NULL, NULL, &timeout);
|
|
if(status < 0)
|
|
{
|
|
printf("select() failed in kbhit()\n");
|
|
exit(1);
|
|
}
|
|
return status;
|
|
}
|
|
/*****************************************************************************
|
|
*****************************************************************************/
|
|
static int getch(void)
|
|
{
|
|
unsigned char temp;
|
|
|
|
raw();
|
|
/* stdin = fd 0 */
|
|
if(read(0, &temp, 1) != 1)
|
|
return 0;
|
|
return temp;
|
|
}
|
|
#endif
|
|
|
|
|