diff options
| author | thorpej <thorpej@NetBSD.org> | 2021-10-13 04:57:19 +0000 |
|---|---|---|
| committer | thorpej <thorpej@NetBSD.org> | 2021-10-13 04:57:19 +0000 |
| commit | d288317ac8dab1eed547cea0b2e7295c03b27bf4 (patch) | |
| tree | ed260f6768cc7dbf967ad6689f7d6a57ea49dd50 /tests/kernel/kqueue | |
| parent | 5aae2f7d9d0d43edbd238bdf38ac3e37e5553a85 (diff) | |
Add support for the NOTE_SECONDS, NOTE_MSECONDS, NOTE_USECONDS,
NOTE_NSECONDS, and NOTE_ABSTIME filter flags to EVFILT_TIMER,
API-compatible with the same in FreeBSD.
Diffstat (limited to 'tests/kernel/kqueue')
| -rw-r--r-- | tests/kernel/kqueue/Makefile | 3 | ||||
| -rw-r--r-- | tests/kernel/kqueue/t_timer.c | 274 |
2 files changed, 276 insertions, 1 deletions
diff --git a/tests/kernel/kqueue/Makefile b/tests/kernel/kqueue/Makefile index 74bcdb3fb00..4c4ef4b275c 100644 --- a/tests/kernel/kqueue/Makefile +++ b/tests/kernel/kqueue/Makefile @@ -1,4 +1,4 @@ -# $NetBSD: Makefile,v 1.6 2021/10/10 17:47:39 thorpej Exp $ +# $NetBSD: Makefile,v 1.7 2021/10/13 04:57:19 thorpej Exp $ WARNS?=6 NOMAN= # defined @@ -17,6 +17,7 @@ TESTS_C+= t_proc3 TESTS_C+= t_proc4 TESTS_C+= t_scan TESTS_C+= t_sig +TESTS_C+= t_timer TESTS_C+= t_vnode LDADD.t_scan+= -lpthread diff --git a/tests/kernel/kqueue/t_timer.c b/tests/kernel/kqueue/t_timer.c new file mode 100644 index 00000000000..1052ff70761 --- /dev/null +++ b/tests/kernel/kqueue/t_timer.c @@ -0,0 +1,274 @@ +/* $NetBSD: t_timer.c,v 1.1 2021/10/13 04:57:19 thorpej Exp $ */ + +/*- + * Copyright (c) 2021 The NetBSD Foundation, Inc. + * All rights reserved. + * + * 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_timer.c,v 1.1 2021/10/13 04:57:19 thorpej Exp $"); + +#include <sys/types.h> +#include <sys/event.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +#include <atf-c.h> + +ATF_TC(basic_timer); +ATF_TC_HEAD(basic_timer, tc) +{ + atf_tc_set_md_var(tc, "descr", + "tests basic EVFILT_TIMER functionality"); +} + +#define TIME1 1000 /* 1000ms -> 1s */ +#define TIME1_COUNT 5 +#define TIME2 6000 /* 6000ms -> 6s */ + +#define TIME1_TOTAL_SEC ((TIME1 * TIME1_COUNT) / 1000) +#define TIME2_TOTAL_SEC (TIME2 / 1000) + +ATF_TC_BODY(basic_timer, tc) +{ + struct kevent event[2]; + int ntimer1 = 0, ntimer2 = 0; + struct timespec ots, ts; + int kq; + + ATF_REQUIRE((kq = kqueue()) >= 0); + + EV_SET(&event[0], 1, EVFILT_TIMER, EV_ADD, 0, TIME1, NULL); + EV_SET(&event[1], 2, EVFILT_TIMER, EV_ADD | EV_ONESHOT, 0, TIME2, NULL); + + ATF_REQUIRE(kevent(kq, event, 2, NULL, 0, NULL) == 0); + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, &ots) == 0); + + for (;;) { + ATF_REQUIRE(kevent(kq, NULL, 0, event, 1, NULL) == 1); + ATF_REQUIRE(event[0].filter == EVFILT_TIMER); + ATF_REQUIRE(event[0].ident == 1 || + event[0].ident == 2); + if (event[0].ident == 1) { + ATF_REQUIRE(ntimer1 < TIME1_COUNT); + if (++ntimer1 == TIME1_COUNT) { + /* + * Make sure TIME1_TOTAL_SEC seconds have + * elapsed, allowing for a little slop. + */ + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, + &ts) == 0); + timespecsub(&ts, &ots, &ts); + ATF_REQUIRE(ts.tv_sec == + (TIME1_TOTAL_SEC - 1) || + ts.tv_sec == TIME1_TOTAL_SEC); + if (ts.tv_sec == TIME1_TOTAL_SEC - 1) { + ATF_REQUIRE(ts.tv_nsec >= + 900000000); + } + EV_SET(&event[0], 1, EVFILT_TIMER, EV_DELETE, + 0, 0, NULL); + ATF_REQUIRE(kevent(kq, event, 1, NULL, 0, + NULL) == 0); + } + } else { + ATF_REQUIRE(ntimer1 == TIME1_COUNT); + ATF_REQUIRE(ntimer2 == 0); + ntimer2++; + /* + * Make sure TIME2_TOTAL_SEC seconds have + * elapsed, allowing for a little slop. + */ + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, + &ts) == 0); + timespecsub(&ts, &ots, &ts); + ATF_REQUIRE(ts.tv_sec == + (TIME2_TOTAL_SEC - 1) || + ts.tv_sec == TIME2_TOTAL_SEC); + if (ts.tv_sec == TIME2_TOTAL_SEC - 1) { + ATF_REQUIRE(ts.tv_nsec >= 900000000); + } + EV_SET(&event[0], 2, EVFILT_TIMER, EV_DELETE, + 0, 0, NULL); + ATF_REQUIRE_ERRNO(ENOENT, + kevent(kq, event, 1, NULL, 0, NULL) == -1); + break; + } + } + + /* + * Now block in kqueue for TIME2_TOTAL_SEC, and ensure we + * don't receive any new events. + */ + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, &ots) == 0); + ts.tv_sec = TIME2_TOTAL_SEC; + ts.tv_nsec = 0; + ATF_REQUIRE(kevent(kq, NULL, 0, event, 1, &ts) == 0); + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, &ts) == 0); + timespecsub(&ts, &ots, &ts); + ATF_REQUIRE(ts.tv_sec == (TIME2_TOTAL_SEC - 1) || + ts.tv_sec == TIME2_TOTAL_SEC || + ts.tv_sec == (TIME2_TOTAL_SEC + 1)); + if (ts.tv_sec == TIME2_TOTAL_SEC - 1) { + ATF_REQUIRE(ts.tv_nsec >= 900000000); + } else if (ts.tv_sec == TIME2_TOTAL_SEC + 1) { + ATF_REQUIRE(ts.tv_nsec < 500000000); + } +} + +ATF_TC(count_expirations); +ATF_TC_HEAD(count_expirations, tc) +{ + atf_tc_set_md_var(tc, "descr", + "tests counting timer expirations"); +} + +ATF_TC_BODY(count_expirations, tc) +{ + struct kevent event[1]; + struct timespec ts = { 0, 0 }; + struct timespec sleepts; + int kq; + + ATF_REQUIRE((kq = kqueue()) >= 0); + + EV_SET(&event[0], 1, EVFILT_TIMER, EV_ADD, 0, TIME1, NULL); + ATF_REQUIRE(kevent(kq, event, 1, NULL, 0, NULL) == 0); + + /* Sleep a little longer to mitigate timing jitter. */ + sleepts.tv_sec = TIME1_TOTAL_SEC; + sleepts.tv_nsec = 500000000; + ATF_REQUIRE(nanosleep(&sleepts, NULL) == 0); + + ATF_REQUIRE(kevent(kq, NULL, 0, event, 1, &ts) == 1); + ATF_REQUIRE(event[0].ident == 1); + ATF_REQUIRE(event[0].data == TIME1_COUNT || + event[0].data == TIME1_COUNT + 1); +} + +ATF_TC(abstime); +ATF_TC_HEAD(abstime, tc) +{ + atf_tc_set_md_var(tc, "descr", + "tests timers with NOTE_ABSTIME"); +} + +ATF_TC_BODY(abstime, tc) +{ + struct kevent event[1]; + struct timespec ts, ots; + time_t seconds; + int kq; + + ATF_REQUIRE((kq = kqueue()) >= 0); + + ATF_REQUIRE(clock_gettime(CLOCK_REALTIME, &ots) == 0); + ATF_REQUIRE(ots.tv_sec < INTPTR_MAX - TIME1_TOTAL_SEC); + + seconds = ots.tv_sec + TIME1_TOTAL_SEC; + if (ots.tv_nsec >= 500000000) { + seconds++; + } + + EV_SET(&event[0], 1, EVFILT_TIMER, EV_ADD, + NOTE_ABSTIME | NOTE_SECONDS, seconds, NULL); + ATF_REQUIRE(kevent(kq, event, 1, event, 1, NULL) == 1); + + ATF_REQUIRE(clock_gettime(CLOCK_REALTIME, &ts) == 0); + timespecsub(&ts, &ots, &ts); + + /* + * We're not going for precision here; just verify that it was + * delivered anywhere between 4.5-6.whatever seconds later. + */ + ATF_REQUIRE(ts.tv_sec >= 4 && ts.tv_sec <= 6); + if (ts.tv_sec == 4) { + ATF_REQUIRE(ts.tv_nsec >= 500000000); + } + + ts.tv_sec = 0; + ts.tv_nsec = 0; + ATF_REQUIRE(kevent(kq, NULL, 0, event, 1, &ts) == 1); +} + +#define PREC_TIMEOUT_SEC 2 + +static void +do_test_timer_units(const char *which, uint32_t fflag, int64_t data) +{ + struct kevent event[1]; + struct timespec ts, ots; + int kq; + + ATF_REQUIRE((kq = kqueue()) >= 0); + + EV_SET(&event[0], 1, EVFILT_TIMER, EV_ADD | EV_ONESHOT, + fflag, data, NULL); + + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, &ots) == 0); + ATF_REQUIRE(kevent(kq, event, 1, event, 1, NULL) == 1); + ATF_REQUIRE(clock_gettime(CLOCK_MONOTONIC, &ts) == 0); + + timespecsub(&ts, &ots, &ts); + ATF_REQUIRE_MSG(ts.tv_sec == (PREC_TIMEOUT_SEC - 1) || + ts.tv_sec == PREC_TIMEOUT_SEC, + "units '%s' failed [sec]", which); + if (ts.tv_sec == PREC_TIMEOUT_SEC - 1) { + ATF_REQUIRE_MSG(ts.tv_nsec >= 900000000, + "units '%s' failed [nsec]", which); + } + + (void)close(kq); +} + +#define test_timer_units(fflag, data) \ + do_test_timer_units(#fflag, fflag, data) + +ATF_TC(timer_units); +ATF_TC_HEAD(timer_units, tc) +{ + atf_tc_set_md_var(tc, "descr", + "tests timers with NOTE_* units modifiers"); +} + +ATF_TC_BODY(timer_units, tc) +{ + test_timer_units(NOTE_SECONDS, PREC_TIMEOUT_SEC); + test_timer_units(NOTE_MSECONDS, PREC_TIMEOUT_SEC * 1000); + test_timer_units(NOTE_USECONDS, PREC_TIMEOUT_SEC * 1000000); + test_timer_units(NOTE_NSECONDS, PREC_TIMEOUT_SEC * 1000000000); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, basic_timer); + ATF_TP_ADD_TC(tp, count_expirations); + ATF_TP_ADD_TC(tp, abstime); + ATF_TP_ADD_TC(tp, timer_units); + + return atf_no_error(); +} |
