[136] | 1 | #ifndef _3DV_CONIO_H
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| 2 | #define _3DV_CONIO_H
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| 3 |
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| 4 | /* 3dv-client/3dv_conio.h
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| 5 | *
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| 6 | * Copyright (C) 2013 VisLab
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| 7 | *
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| 8 | * This file is part of 3dv-client; you can redistribute it and/or modify
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| 9 | * it under the terms of the GNU Lesser General Public License as published by
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| 10 | * the Free Software Foundation; either version 3 of the License, or (at
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| 11 | * your option) any later version.
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| 12 | *
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| 13 | * This program is distributed in the hope that it will be useful, but
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| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 16 | * General Public License for more details.
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| 17 | *
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| 18 | * You should have received a copy of the GNU Lesser General Public License
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| 19 | * along with this program; if not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 |
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| 23 | #include <stdlib.h>
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| 24 | #include <string.h>
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| 25 | #include <unistd.h>
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| 26 | #include <sys/select.h>
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| 27 | #include <termios.h>
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| 28 |
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| 29 | struct termios orig_termios;
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| 30 |
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| 31 | void reset_terminal_mode()
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| 32 | {
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| 33 | tcsetattr(0, TCSANOW, &orig_termios);
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| 34 | }
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| 35 |
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| 36 | void set_conio_terminal_mode()
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| 37 | {
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| 38 | struct termios new_termios;
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| 39 |
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| 40 | /* take two copies - one for now, one for later */
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| 41 | tcgetattr(0, &orig_termios);
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| 42 | memcpy(&new_termios, &orig_termios, sizeof(new_termios));
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| 43 |
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| 44 | /* register cleanup handler, and set the new terminal mode */
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| 45 | atexit(reset_terminal_mode);
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| 46 | cfmakeraw(&new_termios);
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| 47 | tcsetattr(0, TCSANOW, &new_termios);
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| 48 | }
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| 49 |
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| 50 | int kbhit()
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| 51 | {
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| 52 | struct timeval tv = { 0L, 0L };
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| 53 | fd_set fds;
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| 54 | FD_ZERO(&fds);
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| 55 | FD_SET(0, &fds);
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| 56 | return select(1, &fds, NULL, NULL, &tv);
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| 57 | }
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| 58 |
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| 59 | int getch()
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| 60 | {
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| 61 | int r;
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| 62 | unsigned char c;
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| 63 | if ((r = read(0, &c, sizeof(c))) < 0) {
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| 64 | return r;
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| 65 | } else {
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| 66 | return c;
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| 67 | }
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| 68 | }
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| 69 |
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| 70 | ///*main example*/
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| 71 | // int main(int argc, char *argv[])
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| 72 | // {
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| 73 | // set_conio_terminal_mode();
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| 74 | //
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| 75 | // while (!kbhit()) {
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| 76 | // /* do some work */
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| 77 | // }
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| 78 | // (void)getch(); /* consume the character */
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| 79 | // }
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| 80 | #endif |
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