123 lines
4.6 KiB
C
123 lines
4.6 KiB
C
/*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <signal.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/syscall.h>
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static void
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handler(int signo)
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{
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}
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int
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main(void)
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{
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struct {
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struct timespec ts;
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uint32_t pad[2];
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} req = {
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.ts = { .tv_nsec = 0xc0de1 },
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.pad = { 0xdeadbeef, 0xbadc0ded }
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}, rem = {
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.ts = { .tv_sec = 0xc0de2, .tv_nsec = 0xc0de3 },
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.pad = { 0xdeadbeef, 0xbadc0ded }
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};
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const sigset_t set = {};
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const struct sigaction act = { .sa_handler = handler };
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const struct itimerval itv = {
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.it_interval.tv_usec = 222222,
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.it_value.tv_usec = 111111
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};
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if (syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, &req.ts, NULL))
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perror_msg_and_skip("clock_nanosleep CLOCK_REALTIME");
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printf("clock_nanosleep(CLOCK_REALTIME, 0, {%jd, %jd}, NULL) = 0\n",
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(intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec);
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assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
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NULL, &rem.ts) == -1);
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printf("clock_nanosleep(CLOCK_REALTIME, 0, NULL, %p)"
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" = -1 EFAULT (%m)\n", &rem.ts);
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assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
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&req.ts, &rem.ts) == 0);
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printf("clock_nanosleep(CLOCK_REALTIME, 0, {%jd, %jd}, %p) = 0\n",
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(intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, &rem.ts);
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req.ts.tv_nsec = 999999999 + 1;
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assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
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&req.ts, &rem.ts) == -1);
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printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
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", {%jd, %jd}, %p) = -1 EINVAL (%m)\n",
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(intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, &rem.ts);
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assert(sigaction(SIGALRM, &act, NULL) == 0);
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assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
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if (setitimer(ITIMER_REAL, &itv, NULL))
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perror_msg_and_skip("setitimer");
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printf("setitimer(ITIMER_REAL, {it_interval={%jd, %jd}"
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", it_value={%jd, %jd}}, NULL) = 0\n",
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(intmax_t) itv.it_interval.tv_sec,
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(intmax_t) itv.it_interval.tv_usec,
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(intmax_t) itv.it_value.tv_sec,
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(intmax_t) itv.it_value.tv_usec);
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--req.ts.tv_nsec;
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assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
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&req.ts, &rem.ts) == -1);
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printf("clock_nanosleep(CLOCK_REALTIME, 0, {%jd, %jd}, {%jd, %jd})"
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" = ? ERESTART_RESTARTBLOCK (Interrupted by signal)\n",
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(intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec,
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(intmax_t) rem.ts.tv_sec, (intmax_t) rem.ts.tv_nsec);
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puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
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assert(syscall(__NR_clock_gettime, CLOCK_REALTIME, &req.ts) == 0);
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printf("clock_gettime(CLOCK_REALTIME, {%jd, %jd}) = 0\n",
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(intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec);
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++req.ts.tv_sec;
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rem.ts.tv_sec = 0xc0de4;
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rem.ts.tv_nsec = 0xc0de5;
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assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, TIMER_ABSTIME,
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&req.ts, &rem.ts) == -1);
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printf("clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, {%jd, %jd}, %p)"
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" = ? ERESTARTNOHAND (To be restarted if no handler)\n",
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(intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, &rem.ts);
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puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
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puts("+++ exited with 0 +++");
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return 0;
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}
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