1 /* 2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv (at) altlinux.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "tests.h" 29 #include <assert.h> 30 #include <stdio.h> 31 #include <stdint.h> 32 #include <signal.h> 33 #include <time.h> 34 #include <unistd.h> 35 #include <sys/time.h> 36 #include <asm/unistd.h> 37 38 static void 39 handler(int signo) 40 { 41 } 42 43 int 44 main(void) 45 { 46 struct { 47 struct timespec ts; 48 uint32_t pad[2]; 49 } req = { 50 .ts.tv_nsec = 0xc0de1, 51 .pad = { 0xdeadbeef, 0xbadc0ded } 52 }, rem = { 53 .ts = { .tv_sec = 0xc0de2, .tv_nsec = 0xc0de3 }, 54 .pad = { 0xdeadbeef, 0xbadc0ded } 55 }; 56 const sigset_t set = {}; 57 const struct sigaction act = { .sa_handler = handler }; 58 const struct itimerval itv = { 59 .it_interval.tv_usec = 222222, 60 .it_value.tv_usec = 111111 61 }; 62 63 if (syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, &req.ts, NULL)) 64 perror_msg_and_skip("clock_nanosleep CLOCK_REALTIME"); 65 printf("clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=%jd, tv_nsec=%jd}, " 66 "NULL) = 0\n", 67 (intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec); 68 69 assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, 70 NULL, &rem.ts) == -1); 71 printf("clock_nanosleep(CLOCK_REALTIME, 0, NULL, %p)" 72 " = -1 EFAULT (%m)\n", &rem.ts); 73 74 assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, 75 &req.ts, &rem.ts) == 0); 76 printf("clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=%jd, tv_nsec=%jd}, " 77 "%p) = 0\n", 78 (intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, &rem.ts); 79 80 req.ts.tv_nsec = 999999999 + 1; 81 assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0, 82 &req.ts, &rem.ts) == -1); 83 printf("clock_nanosleep(CLOCK_MONOTONIC, 0" 84 ", {tv_sec=%jd, tv_nsec=%jd}, %p) = -1 EINVAL (%m)\n", 85 (intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, &rem.ts); 86 87 assert(sigaction(SIGALRM, &act, NULL) == 0); 88 assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0); 89 90 if (setitimer(ITIMER_REAL, &itv, NULL)) 91 perror_msg_and_skip("setitimer"); 92 printf("setitimer(ITIMER_REAL, {it_interval={tv_sec=%jd, tv_usec=%jd}" 93 ", it_value={tv_sec=%jd, tv_usec=%jd}}, NULL) = 0\n", 94 (intmax_t) itv.it_interval.tv_sec, 95 (intmax_t) itv.it_interval.tv_usec, 96 (intmax_t) itv.it_value.tv_sec, 97 (intmax_t) itv.it_value.tv_usec); 98 99 --req.ts.tv_nsec; 100 assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, 101 &req.ts, &rem.ts) == -1); 102 printf("clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=%jd, tv_nsec=%jd}, " 103 "{tv_sec=%jd, tv_nsec=%jd})" 104 " = ? ERESTART_RESTARTBLOCK (Interrupted by signal)\n", 105 (intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, 106 (intmax_t) rem.ts.tv_sec, (intmax_t) rem.ts.tv_nsec); 107 puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---"); 108 109 assert(syscall(__NR_clock_gettime, CLOCK_REALTIME, &req.ts) == 0); 110 printf("clock_gettime(CLOCK_REALTIME, {tv_sec=%jd, tv_nsec=%jd}) = 0\n", 111 (intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec); 112 113 ++req.ts.tv_sec; 114 rem.ts.tv_sec = 0xc0de4; 115 rem.ts.tv_nsec = 0xc0de5; 116 assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, TIMER_ABSTIME, 117 &req.ts, &rem.ts) == -1); 118 printf("clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, {tv_sec=%jd, " 119 "tv_nsec=%jd}, %p)" 120 " = ? ERESTARTNOHAND (To be restarted if no handler)\n", 121 (intmax_t) req.ts.tv_sec, (intmax_t) req.ts.tv_nsec, &rem.ts); 122 puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---"); 123 124 puts("+++ exited with 0 +++"); 125 return 0; 126 } 127
