granicus.if.org Git - strace/blob - tests/clock_nanosleep.c

   1 /*
   2  * Check decoding of clock_nanosleep and clock_gettime syscalls.
   3  *
   4  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include "tests.h"
  31 #include <assert.h>
  32 #include <stdio.h>
  33 #include <stdint.h>
  34 #include <signal.h>
  35 #include <time.h>
  36 #include <unistd.h>
  37 #include <sys/time.h>
  38 #include <asm/unistd.h>
  39
  40 static void
  41 handler(int signo)
  42 {
  43 }
  44
  45 int
  46 main(void)
  47 {
  48         struct {
  49                 struct timespec ts;
  50                 uint32_t pad[2];
  51         } req = {
  52                 .ts.tv_nsec = 0xc0de1,
  53                 .pad = { 0xdeadbeef, 0xbadc0ded }
  54         }, rem = {
  55                 .ts = { .tv_sec = 0xc0de2, .tv_nsec = 0xc0de3 },
  56                 .pad = { 0xdeadbeef, 0xbadc0ded }
  57         };
  58         const sigset_t set = {};
  59         const struct sigaction act = { .sa_handler = handler };
  60         const struct itimerval itv = {
  61                 .it_interval.tv_usec = 222222,
  62                 .it_value.tv_usec = 111111
  63         };
  64
  65         if (syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, &req.ts, NULL))
  66                 perror_msg_and_skip("clock_nanosleep CLOCK_REALTIME");
  67         printf("clock_nanosleep(CLOCK_REALTIME, 0"
  68                ", {tv_sec=%lld, tv_nsec=%llu}, NULL) = 0\n",
  69                (long long) req.ts.tv_sec,
  70                zero_extend_signed_to_ull(req.ts.tv_nsec));
  71
  72         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
  73                        NULL, &rem.ts) == -1);
  74         printf("clock_nanosleep(CLOCK_REALTIME, 0, NULL, %p)"
  75                " = -1 EFAULT (%m)\n", &rem.ts);
  76
  77         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
  78                        &req.ts, &rem.ts) == 0);
  79         printf("clock_nanosleep(CLOCK_REALTIME, 0"
  80                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = 0\n",
  81                (long long) req.ts.tv_sec,
  82                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
  83
  84         req.ts.tv_nsec = 999999999 + 1;
  85         assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
  86                        &req.ts, &rem.ts) == -1);
  87         printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
  88                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
  89                (long long) req.ts.tv_sec,
  90                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
  91
  92         req.ts.tv_sec = 0xdeadbeefU;
  93         req.ts.tv_nsec = 0xfacefeedU;
  94         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
  95                        &req.ts, &rem.ts) == -1);
  96         printf("clock_nanosleep(CLOCK_REALTIME, 0"
  97                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
  98                (long long) req.ts.tv_sec,
  99                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
 100
 101         req.ts.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
 102         req.ts.tv_nsec = (long) 0xbadc0dedfacefeedLL;
 103         assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
 104                        &req.ts, &rem.ts) == -1);
 105         printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
 106                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
 107                (long long) req.ts.tv_sec,
 108                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
 109
 110         assert(sigaction(SIGALRM, &act, NULL) == 0);
 111         assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
 112
 113         if (setitimer(ITIMER_REAL, &itv, NULL))
 114                 perror_msg_and_skip("setitimer");
 115
 116         req.ts.tv_sec = 0;
 117         req.ts.tv_nsec = 999999999;
 118         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
 119                        &req.ts, &rem.ts) == -1);
 120         printf("clock_nanosleep(CLOCK_REALTIME, 0"
 121                ", {tv_sec=%lld, tv_nsec=%llu}, {tv_sec=%lld, tv_nsec=%llu})"
 122                " = ? ERESTART_RESTARTBLOCK (Interrupted by signal)\n",
 123                (long long) req.ts.tv_sec,
 124                zero_extend_signed_to_ull(req.ts.tv_nsec),
 125                (long long) rem.ts.tv_sec,
 126                zero_extend_signed_to_ull(rem.ts.tv_nsec));
 127         puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
 128
 129         assert(syscall(__NR_clock_gettime, CLOCK_REALTIME, &req.ts) == 0);
 130         printf("clock_gettime(CLOCK_REALTIME, {tv_sec=%lld, tv_nsec=%llu}) = 0\n",
 131                (long long) req.ts.tv_sec,
 132                zero_extend_signed_to_ull(req.ts.tv_nsec));
 133
 134         ++req.ts.tv_sec;
 135         rem.ts.tv_sec = 0xc0de4;
 136         rem.ts.tv_nsec = 0xc0de5;
 137         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, TIMER_ABSTIME,
 138                        &req.ts, &rem.ts) == -1);
 139         printf("clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME"
 140                ", {tv_sec=%lld, tv_nsec=%llu}, %p)"
 141                " = ? ERESTARTNOHAND (To be restarted if no handler)\n",
 142                (long long) req.ts.tv_sec,
 143                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
 144         puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
 145
 146         puts("+++ exited with 0 +++");
 147         return 0;
 148 }