unix_conio.cpp

#include "unix_conio.h"
 
int kbhit()
{
	struct timeval tv;
	fd_set rdfs;

	tv.tv_sec = 0;
	tv.tv_usec = 0;
	
	FD_ZERO(&rdfs);
	FD_SET(STDIN_FILENO, &rdfs);

	select(STDIN_FILENO + 1, &rdfs, NULL, NULL, &tv);
	return FD_ISSET(STDIN_FILENO, &rdfs);
}

void changemode(int dir){
	static struct termios oldt, newt;

	if ( dir == 1){
		tcgetattr(STDIN_FILENO, &oldt);
		newt = oldt;
		newt.c_lflag &= ~(ICANON | ECHO);
		tcsetattr(STDIN_FILENO, TCSANOW, &newt);
	}
	else
		tcsetattr( STDIN_FILENO, TCSANOW, &oldt);
}

int my_getch() {
	int ch;
	changemode(1);
	ch = getchar();
	changemode(0);
	return ch;
}