teken_stress.c revision 186681
1/*- 2 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/syscons/teken/teken_stress.c 186681 2009-01-01 13:26:53Z ed $ 27 */ 28 29#include <sys/cdefs.h> 30 31#include <fcntl.h> 32#include <inttypes.h> 33#include <stdio.h> 34#include <stdlib.h> 35#include <unistd.h> 36 37#include "teken.h" 38 39static tf_bell_t stress_bell; 40static tf_cursor_t stress_cursor; 41static tf_putchar_t stress_putchar; 42static tf_fill_t stress_fill; 43static tf_copy_t stress_copy; 44static tf_param_t stress_param; 45static tf_respond_t stress_respond; 46 47static teken_funcs_t tf = { 48 .tf_bell = stress_bell, 49 .tf_cursor = stress_cursor, 50 .tf_putchar = stress_putchar, 51 .tf_fill = stress_fill, 52 .tf_copy = stress_copy, 53 .tf_param = stress_param, 54 .tf_respond = stress_respond, 55}; 56 57static void 58stress_bell(void *s __unused) 59{ 60} 61 62static void 63stress_cursor(void *s __unused, const teken_pos_t *p __unused) 64{ 65} 66 67static void 68stress_putchar(void *s __unused, const teken_pos_t *p __unused, 69 teken_char_t c __unused, const teken_attr_t *a __unused) 70{ 71} 72 73static void 74stress_fill(void *s __unused, const teken_rect_t *r __unused, 75 teken_char_t c __unused, const teken_attr_t *a __unused) 76{ 77} 78 79static void 80stress_copy(void *s __unused, const teken_rect_t *r __unused, 81 const teken_pos_t *p __unused) 82{ 83} 84 85static void 86stress_param(void *s __unused, int cmd __unused, int value __unused) 87{ 88} 89 90static void 91stress_respond(void *s __unused, const void *buf __unused, size_t len __unused) 92{ 93} 94 95int 96main(int argc __unused, char *argv[] __unused) 97{ 98 teken_t t; 99 int rnd; 100 unsigned int iteration = 0; 101 char buf[2048]; 102 103 rnd = open("/dev/urandom", O_RDONLY); 104 if (rnd < 0) { 105 perror("/dev/urandom"); 106 exit(1); 107 } 108 109 teken_init(&t, &tf, NULL); 110 111 for (;;) { 112 if (read(rnd, buf, sizeof buf) != sizeof buf) { 113 perror("read"); 114 exit(1); 115 } 116 117 teken_input(&t, buf, sizeof buf); 118 119 iteration++; 120 if ((iteration % 10000) == 0) 121 printf("Processed %u frames\n", iteration); 122 } 123} 124