/* $NetBSD: t_getrusage.c,v 1.8 2018/05/09 08:45:03 mrg Exp $ */ /*- * Copyright (c) 2011 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jukka Ruohonen. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __RCSID("$NetBSD: t_getrusage.c,v 1.8 2018/05/09 08:45:03 mrg Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include static void work(void); static void sighandler(int); static const size_t maxiter = 2000; static void sighandler(int signo __unused) { /* Nothing. */ } static void work(void) { size_t n = UINT16_MAX * 10; while (n > 0) { #ifdef __or1k__ asm volatile("l.nop"); /* Do something. */ #elif defined(__ia64__) asm volatile("nop 0"); /* Do something. */ #else asm volatile("nop"); /* Do something. */ #endif n--; } } ATF_TC(getrusage_err); ATF_TC_HEAD(getrusage_err, tc) { atf_tc_set_md_var(tc, "descr", "Test error conditions"); } ATF_TC_BODY(getrusage_err, tc) { struct rusage ru; errno = 0; ATF_REQUIRE(getrusage(INT_MAX, &ru) != 0); ATF_REQUIRE(errno == EINVAL); errno = 0; ATF_REQUIRE(getrusage(RUSAGE_SELF, (void *)0) != 0); ATF_REQUIRE(errno == EFAULT); } ATF_TC(getrusage_sig); ATF_TC_HEAD(getrusage_sig, tc) { atf_tc_set_md_var(tc, "descr", "Test signal count with getrusage(2)"); } ATF_TC_BODY(getrusage_sig, tc) { struct rusage ru; const long n = 5; int i; /* * Test that signals are recorded. */ ATF_REQUIRE(signal(SIGUSR1, sighandler) != SIG_ERR); for (i = 0; i < n; i++) ATF_REQUIRE(raise(SIGUSR1) == 0); (void)memset(&ru, 0, sizeof(struct rusage)); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0); if (n != ru.ru_nsignals) atf_tc_fail("getrusage(2) did not record signals"); } ATF_TC(getrusage_maxrss); ATF_TC_HEAD(getrusage_maxrss, tc) { atf_tc_set_md_var(tc, "descr", "Test maxrss growing with getrusage(2)"); } ATF_TC_BODY(getrusage_maxrss, tc) { struct rusage ru; long maxrss; int i, fd; #define DUMP_FILE "dump" fd = open(DUMP_FILE, O_WRONLY|O_CREAT|O_TRUNC, 0222); ATF_REQUIRE(fd != -1); (void)memset(&ru, 0, sizeof(struct rusage)); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0); maxrss = ru.ru_maxrss; #define CHUNK (1024 * 1024) for (i = 0; i < 40; i++) { void *p = malloc(CHUNK); memset(p, 0, CHUNK); write(fd, p, CHUNK); } close(fd); unlink(DUMP_FILE); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0); ATF_REQUIRE_MSG(maxrss < ru.ru_maxrss, "maxrss: %ld, ru.ru_maxrss: %ld", maxrss, ru.ru_maxrss); } ATF_TC(getrusage_msgsnd); ATF_TC_HEAD(getrusage_msgsnd, tc) { atf_tc_set_md_var(tc, "descr", "Test send growing with getrusage(2)"); } ATF_TC_BODY(getrusage_msgsnd, tc) { struct rusage ru; long msgsnd; int s, i; struct sockaddr_in sin; ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0); msgsnd = ru.ru_msgsnd; s = socket(AF_INET, SOCK_DGRAM, 0); ATF_REQUIRE(s >= 0); memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_len = sizeof(sin); sin.sin_addr.s_addr = ntohl(INADDR_LOOPBACK); sin.sin_port = htons(3333); for (i = 0; i < 10; i++) ATF_REQUIRE(sendto(s, &sin, sizeof(sin), 0, (void *)&sin, (socklen_t)sizeof(sin)) != -1); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0); ATF_REQUIRE(msgsnd + 10 == ru.ru_msgsnd); close(s); } ATF_TC(getrusage_utime_back); ATF_TC_HEAD(getrusage_utime_back, tc) { atf_tc_set_md_var(tc, "descr", "Test bogus values from getrusage(2)"); } ATF_TC_BODY(getrusage_utime_back, tc) { struct rusage ru1, ru2; size_t i; /* * Test that two consecutive calls are sane. */ atf_tc_expect_fail("PR kern/30115"); for (i = 0; i < maxiter; i++) { (void)memset(&ru1, 0, sizeof(struct rusage)); (void)memset(&ru2, 0, sizeof(struct rusage)); work(); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru1) == 0); work(); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru2) == 0); if (timercmp(&ru2.ru_utime, &ru1.ru_utime, <) != 0) atf_tc_fail("user time went backwards"); } atf_tc_fail("anticipated error did not occur"); } ATF_TC(getrusage_utime_zero); ATF_TC_HEAD(getrusage_utime_zero, tc) { atf_tc_set_md_var(tc, "descr", "Test zero utime from getrusage(2)"); } ATF_TC_BODY(getrusage_utime_zero, tc) { struct rusage ru; size_t i; /* * Test that getrusage(2) does not return * zero user time for the calling process. * * See also (duplicate) PR port-amd64/41734. */ atf_tc_expect_fail("PR kern/30115"); for (i = 0; i < maxiter; i++) { work(); (void)memset(&ru, 0, sizeof(struct rusage)); ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0); if (ru.ru_utime.tv_sec == 0 && ru.ru_utime.tv_usec == 0) atf_tc_fail("zero user time from getrusage(2)"); } atf_tc_fail("anticipated error did not occur"); } ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, getrusage_err); ATF_TP_ADD_TC(tp, getrusage_sig); ATF_TP_ADD_TC(tp, getrusage_maxrss); ATF_TP_ADD_TC(tp, getrusage_msgsnd); ATF_TP_ADD_TC(tp, getrusage_utime_back); ATF_TP_ADD_TC(tp, getrusage_utime_zero); return atf_no_error(); }