1 /* $NetBSD: t_gettimeofday.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jukka Ruohonen. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: t_gettimeofday.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $"); 33 34 #include <sys/time.h> 35 36 #include <atf-c.h> 37 #include <errno.h> 38 #include <string.h> 39 40 ATF_TC(gettimeofday_err); 41 ATF_TC_HEAD(gettimeofday_err, tc) 42 { 43 atf_tc_set_md_var(tc, "descr", "Test errors from gettimeofday(2)"); 44 } 45 46 ATF_TC_BODY(gettimeofday_err, tc) 47 { 48 49 #ifdef __NetBSD__ 50 errno = 0; 51 52 ATF_REQUIRE_ERRNO(EFAULT, gettimeofday((void *)-1, NULL) != 0); 53 #endif 54 } 55 56 ATF_TC(gettimeofday_mono); 57 ATF_TC_HEAD(gettimeofday_mono, tc) 58 { 59 atf_tc_set_md_var(tc, "descr", "Test monotonicity of gettimeofday(2)"); 60 } 61 62 ATF_TC_BODY(gettimeofday_mono, tc) 63 { 64 static const size_t maxiter = 100; 65 struct timeval tv1, tv2; 66 size_t i; 67 68 for (i = 0; i < maxiter; i++) { 69 70 (void)memset(&tv1, 0, sizeof(struct timeval)); 71 (void)memset(&tv2, 0, sizeof(struct timeval)); 72 73 ATF_REQUIRE(gettimeofday(&tv1, NULL) == 0); 74 ATF_REQUIRE(gettimeofday(&tv2, NULL) == 0); 75 76 if (timercmp(&tv2, &tv1, <) != 0) 77 atf_tc_fail("time went backwards"); 78 } 79 } 80 81 ATF_TP_ADD_TCS(tp) 82 { 83 84 ATF_TP_ADD_TC(tp, gettimeofday_err); 85 ATF_TP_ADD_TC(tp, gettimeofday_mono); 86 87 return atf_no_error(); 88 } 89