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Annotation of src/tests/kernel/t_timeleft.c, Revision 1.2

1.2     ! martin      1: /* $NetBSD: t_timeleft.c,v 1.1 2017/12/08 01:19:29 christos Exp $ */
1.1       christos    2:
                      3: /*-
                      4:  * Copyright (c) 2017 The NetBSD Foundation, Inc.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to The NetBSD Foundation
                      8:  * by Christos Zoulas.
                      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:
                     32: #include <sys/cdefs.h>
                     33: __COPYRIGHT("@(#) Copyright (c) 2008\
                     34:  The NetBSD Foundation, inc. All rights reserved.");
1.2     ! martin     35: __RCSID("$NetBSD: t_timeleft.c,v 1.1 2017/12/08 01:19:29 christos Exp $");
1.1       christos   36:
                     37: #include <sys/types.h>
                     38: #include <sys/select.h>
                     39:
                     40: #include <atf-c.h>
                     41: #include <time.h>
                     42: #include <errno.h>
                     43: #include <lwp.h>
                     44: #include <signal.h>
                     45: #include <pthread.h>
                     46: #include <stdio.h>
                     47: #include <sched.h>
                     48: #include <unistd.h>
                     49:
                     50: static void
                     51: sighandler(int signo __unused)
                     52: {
                     53: }
                     54:
                     55: struct info {
                     56:        void (*fun)(struct timespec *);
                     57:        struct timespec ts;
                     58: };
                     59:
                     60: static void
                     61: timeleft__lwp_park(struct timespec *ts)
                     62: {
                     63:        ATF_REQUIRE_ERRNO(EINTR, _lwp_park(CLOCK_MONOTONIC, TIMER_RELTIME,
                     64:            ts, 0, ts, NULL) == -1);
                     65: }
                     66:
                     67: #if 0
                     68: static void
                     69: timeleft_pselect(struct timespec *ts)
                     70: {
                     71:        ATF_REQUIRE_ERRNO(EINTR, pselect(1, NULL, NULL, NULL, ts, NULL));
                     72: }
                     73: #endif
                     74:
                     75: static void *
                     76: runner(void *arg)
                     77: {
                     78:        struct info *i = arg;
                     79:        (*i->fun)(&i->ts);
                     80:        return NULL;
                     81: }
                     82:
                     83: static void
                     84: tester(void (*fun)(struct timespec *))
                     85: {
                     86:        const struct timespec ts = { 5, 0 };
1.2     ! martin     87:        const struct timespec sts = { 0, 2000000 };
1.1       christos   88:        struct info i = { fun, ts };
                     89:        pthread_t thr;
                     90:
                     91:        ATF_REQUIRE(signal(SIGINT, sighandler) == 0);
                     92:        ATF_REQUIRE(pthread_create(&thr, NULL, runner, &i) == 0);
                     93:
                     94:        nanosleep(&sts, NULL);
                     95:        pthread_kill(thr, SIGINT);
                     96:        printf("Orig time %ju.%lu\n", (intmax_t)ts.tv_sec, ts.tv_nsec);
                     97:        printf("Time left %ju.%lu\n", (intmax_t)i.ts.tv_sec, i.ts.tv_nsec);
                     98:        ATF_REQUIRE(timespeccmp(&i.ts, &ts, <));
                     99: }
                    100:
                    101: ATF_TC(timeleft__lwp_park);
                    102: ATF_TC_HEAD(timeleft__lwp_park, tc)
                    103: {
                    104:        atf_tc_set_md_var(tc, "descr", "Checks that _lwp_park(2) returns "
                    105:            "the time left to sleep after interrupted");
                    106: }
                    107:
                    108: ATF_TC_BODY(timeleft__lwp_park, tc)
                    109: {
                    110:        tester(timeleft__lwp_park);
                    111: }
                    112:
                    113: #if 0
                    114: ATF_TC(timeleft_pselect);
                    115: ATF_TC_HEAD(timeleft_pselect, tc)
                    116: {
                    117:        atf_tc_set_md_var(tc, "descr", "Checks that pselect(2) returns "
                    118:            "the time left to sleep after interrupted");
                    119: }
                    120:
                    121: ATF_TC_BODY(timeleft_pselect, tc)
                    122: {
                    123:        tester(timeleft_pselect);
                    124: }
                    125: #endif
                    126:
                    127: ATF_TP_ADD_TCS(tp)
                    128: {
                    129:
                    130:        ATF_TP_ADD_TC(tp, timeleft__lwp_park);
                    131: #if 0
                    132:        ATF_TP_ADD_TC(tp, timeleft_pselect);
                    133: #endif
                    134:
                    135:        return atf_no_error();
                    136: }

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