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

   1 /*
   2  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2015-2017 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include "tests.h"
  10 #include <fcntl.h>
  11 #include <asm/unistd.h>
  12
  13 #if defined __NR_timerfd_create \
  14  && defined __NR_timerfd_gettime \
  15  && defined __NR_timerfd_settime \
  16  && defined O_CLOEXEC
  17
  18 # include <stdio.h>
  19 # include <stdint.h>
  20 # include <time.h>
  21 # include <unistd.h>
  22
  23 int
  24 main(void)
  25 {
  26         (void) close(0);
  27         if (syscall(__NR_timerfd_create, CLOCK_MONOTONIC, O_CLOEXEC | O_NONBLOCK))
  28                 perror_msg_and_skip("timerfd_create");
  29         puts("timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC|TFD_NONBLOCK) = 0");
  30
  31         TAIL_ALLOC_OBJECT_CONST_PTR(struct itimerspec, its_new);
  32         TAIL_ALLOC_OBJECT_CONST_PTR(struct itimerspec, its_old);
  33
  34         its_new->it_interval.tv_sec = 0xdeadbeefU;
  35         its_new->it_interval.tv_nsec = 0xfacefeedU;
  36         its_new->it_value.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
  37         its_new->it_value.tv_nsec = (long) 0xbadc0dedfacefeedLL;
  38
  39         long rc = syscall(__NR_timerfd_settime, 0, 0, its_new, its_old);
  40         printf("timerfd_settime(0, 0"
  41                ", {it_interval={tv_sec=%lld, tv_nsec=%llu}"
  42                ", it_value={tv_sec=%lld, tv_nsec=%llu}}, %p) = %s\n",
  43                (long long) its_new->it_interval.tv_sec,
  44                zero_extend_signed_to_ull(its_new->it_interval.tv_nsec),
  45                (long long) its_new->it_value.tv_sec,
  46                zero_extend_signed_to_ull(its_new->it_value.tv_nsec),
  47                its_old, sprintrc(rc));
  48
  49         its_new->it_interval.tv_sec = 0xdeface1;
  50         its_new->it_interval.tv_nsec = 0xdeface2;
  51         its_new->it_value.tv_sec = 0xdeface3;
  52         its_new->it_value.tv_nsec = 0xdeface4;
  53         its_old->it_interval.tv_sec = 0xdeface5;
  54         its_old->it_interval.tv_nsec = 0xdeface6;
  55         its_old->it_value.tv_sec = 0xdeface7;
  56         its_old->it_value.tv_nsec = 0xdeface8;
  57
  58         if (syscall(__NR_timerfd_settime, 0, 0, its_new, its_old))
  59                 perror_msg_and_skip("timerfd_settime");
  60         printf("timerfd_settime(0, 0"
  61                ", {it_interval={tv_sec=%lld, tv_nsec=%llu}"
  62                ", it_value={tv_sec=%lld, tv_nsec=%llu}}"
  63                ", {it_interval={tv_sec=%lld, tv_nsec=%llu}"
  64                ", it_value={tv_sec=%lld, tv_nsec=%llu}}"
  65                ") = 0\n",
  66                (long long) its_new->it_interval.tv_sec,
  67                zero_extend_signed_to_ull(its_new->it_interval.tv_nsec),
  68                (long long) its_new->it_value.tv_sec,
  69                zero_extend_signed_to_ull(its_new->it_value.tv_nsec),
  70                (long long) its_old->it_interval.tv_sec,
  71                zero_extend_signed_to_ull(its_old->it_interval.tv_nsec),
  72                (long long) its_old->it_value.tv_sec,
  73                zero_extend_signed_to_ull(its_old->it_value.tv_nsec));
  74
  75         if (syscall(__NR_timerfd_gettime, 0, its_old))
  76                 perror_msg_and_skip("timerfd_gettime");
  77         printf("timerfd_gettime(0"
  78                ", {it_interval={tv_sec=%lld, tv_nsec=%llu}"
  79                ", it_value={tv_sec=%lld, tv_nsec=%llu}}) = 0\n",
  80                (long long) its_old->it_interval.tv_sec,
  81                zero_extend_signed_to_ull(its_old->it_interval.tv_nsec),
  82                (long long) its_old->it_value.tv_sec,
  83                zero_extend_signed_to_ull(its_old->it_value.tv_nsec));
  84
  85         puts("+++ exited with 0 +++");
  86         return 0;
  87 }
  88
  89 #else
  90
  91 SKIP_MAIN_UNDEFINED("__NR_timerfd_create && __NR_timerfd_gettime"
  92                     " && __NR_timerfd_settime && O_CLOEXEC")
  93
  94 #endif