diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_getrusage.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_getrusage.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_getrusage.c b/contrib/netbsd-tests/lib/libc/sys/t_getrusage.c new file mode 100644 index 0000000..6c4218a --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/sys/t_getrusage.c @@ -0,0 +1,197 @@ +/* $NetBSD: t_getrusage.c,v 1.3 2014/09/03 19:24:12 matt 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 <sys/cdefs.h> +__RCSID("$NetBSD: t_getrusage.c,v 1.3 2014/09/03 19:24:12 matt Exp $"); + +#include <sys/resource.h> +#include <sys/time.h> + +#include <atf-c.h> +#include <errno.h> +#include <limits.h> +#include <signal.h> +#include <stdint.h> +#include <string.h> + +static void work(void); +static void sighandler(int); + +static const size_t maxiter = 2000; + +static void +sighandler(int signo) +{ + /* Nothing. */ +} + +static void +work(void) +{ + size_t n = UINT16_MAX * 10; + + while (n > 0) { +#ifdef __or1k__ + asm volatile("l.nop"); /* 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_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_utime_back); + ATF_TP_ADD_TC(tp, getrusage_utime_zero); + + return atf_no_error(); +} |
