/*
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* Copyright (C) 2014 Gilles Chanteperdrix <gch@xenomai.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <assert.h>
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#include <unistd.h>
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#include <time.h>
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#include <smokey/smokey.h>
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#include <sys/timerfd.h>
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smokey_test_plugin(posix_clock,
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SMOKEY_NOARGS,
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"Check POSIX clock services."
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);
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static int clock_increase_before_oneshot_timer_first_tick(void)
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{
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unsigned long long ticks;
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struct itimerspec timer;
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struct timespec now;
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int t, ret;
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smokey_trace(__func__);
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t = smokey_check_errno(timerfd_create(CLOCK_REALTIME, 0));
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if (t < 0)
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return t;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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timer.it_value = now;
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timer.it_value.tv_sec++;
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timer.it_interval.tv_sec = 0;
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timer.it_interval.tv_nsec = 0;
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ret = smokey_check_errno(timerfd_settime(t, TFD_TIMER_ABSTIME, &timer, NULL));
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if (ret)
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return ret;
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now.tv_sec += 5;
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ret = smokey_check_errno(clock_settime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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timer.it_value = now;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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if (!smokey_assert(now.tv_sec * 1000000000ULL + now.tv_nsec -
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(timer.it_value.tv_sec * 1000000000ULL + timer.it_value.tv_nsec)
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< 1000000000))
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return -EINVAL;
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return smokey_check_errno(close(t));
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}
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static int clock_increase_before_periodic_timer_first_tick(void)
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{
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unsigned long long ticks;
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struct itimerspec timer;
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struct timespec now;
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int t, ret;
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smokey_trace(__func__);
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t = smokey_check_errno(timerfd_create(CLOCK_REALTIME, 0));
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if (t < 0)
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return t;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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timer.it_value = now;
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timer.it_value.tv_sec++;
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timer.it_interval.tv_sec = 1;
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timer.it_interval.tv_nsec = 0;
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ret = smokey_check_errno(timerfd_settime(t, TFD_TIMER_ABSTIME, &timer, NULL));
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if (ret)
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return ret;
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now.tv_sec += 5;
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ret = smokey_check_errno(clock_settime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 5))
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return -EINVAL;
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timer.it_value = now;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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if (!smokey_assert(now.tv_sec * 1000000000ULL + now.tv_nsec -
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(timer.it_value.tv_sec * 1000000000ULL + timer.it_value.tv_nsec)
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< 1000000000))
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return -EINVAL;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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return smokey_check_errno(close(t));
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}
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static int clock_increase_after_periodic_timer_first_tick(void)
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{
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unsigned long long ticks;
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struct itimerspec timer;
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struct timespec now;
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int t, ret;
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smokey_trace(__func__);
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t = smokey_check_errno(timerfd_create(CLOCK_REALTIME, 0));
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if (t < 0)
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return t;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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timer.it_value = now;
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timer.it_value.tv_sec++;
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timer.it_interval.tv_sec = 1;
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timer.it_interval.tv_nsec = 0;
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ret = smokey_check_errno(timerfd_settime(t, TFD_TIMER_ABSTIME, &timer, NULL));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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now.tv_sec += 5;
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ret = smokey_check_errno(clock_settime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 5))
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return -EINVAL;
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timer.it_value = now;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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if (!smokey_assert(now.tv_sec * 1000000000ULL + now.tv_nsec -
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(timer.it_value.tv_sec * 1000000000ULL + timer.it_value.tv_nsec)
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< 1000000000))
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return -EINVAL;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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return smokey_check_errno(close(t));
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}
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static int clock_decrease_before_oneshot_timer_first_tick(void)
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{
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unsigned long long ticks;
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struct itimerspec timer;
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struct timespec now;
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long long diff;
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int t, ret;
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smokey_trace(__func__);
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t = smokey_check_errno(timerfd_create(CLOCK_REALTIME, 0));
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if (t < 0)
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return t;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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timer.it_value = now;
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timer.it_value.tv_sec++;
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timer.it_interval.tv_sec = 0;
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timer.it_interval.tv_nsec = 0;
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ret = smokey_check_errno(timerfd_settime(t, TFD_TIMER_ABSTIME, &timer, NULL));
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if (ret)
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return ret;
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now.tv_sec -= 5;
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ret = smokey_check_errno(clock_settime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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timer.it_value = now;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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diff = now.tv_sec * 1000000000ULL + now.tv_nsec -
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(timer.it_value.tv_sec * 1000000000ULL + timer.it_value.tv_nsec);
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if (!smokey_assert(diff >= 5500000000LL && diff <= 6500000000LL))
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return -EINVAL;
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return smokey_check_errno(close(t));
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}
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static int clock_decrease_before_periodic_timer_first_tick(void)
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{
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unsigned long long ticks;
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struct itimerspec timer;
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struct timespec now;
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long long diff;
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int t, ret;
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smokey_trace(__func__);
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t = smokey_check_errno(timerfd_create(CLOCK_REALTIME, 0));
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if (t < 0)
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return t;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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timer.it_value = now;
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timer.it_value.tv_sec++;
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timer.it_interval.tv_sec = 1;
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timer.it_interval.tv_nsec = 0;
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ret = smokey_check_errno(timerfd_settime(t, TFD_TIMER_ABSTIME, &timer, NULL));
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if (ret)
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return ret;
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now.tv_sec -= 5;
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ret = smokey_check_errno(clock_settime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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timer.it_value = now;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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diff = now.tv_sec * 1000000000ULL + now.tv_nsec -
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(timer.it_value.tv_sec * 1000000000ULL + timer.it_value.tv_nsec);
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if (!smokey_assert(diff >= 5500000000LL && diff <= 6500000000LL))
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return -EINVAL;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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return smokey_check_errno(close(t));
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}
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static int clock_decrease_after_periodic_timer_first_tick(void)
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{
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unsigned long long ticks;
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struct itimerspec timer;
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struct timespec now;
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long long diff;
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int t, ret;
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smokey_trace(__func__);
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t = smokey_check_errno(timerfd_create(CLOCK_REALTIME, 0));
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if (t < 0)
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return t;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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timer.it_value = now;
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timer.it_value.tv_sec++;
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timer.it_interval.tv_sec = 1;
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timer.it_interval.tv_nsec = 0;
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ret = smokey_check_errno(timerfd_settime(t, TFD_TIMER_ABSTIME, &timer, NULL));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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ret = smokey_check_errno(clock_gettime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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now.tv_sec -= 5;
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ret = smokey_check_errno(clock_settime(CLOCK_REALTIME, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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timer.it_value = now;
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ret = smokey_check_errno(clock_gettime(CLOCK_MONOTONIC, &now));
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if (ret)
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return ret;
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diff = now.tv_sec * 1000000000ULL + now.tv_nsec -
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(timer.it_value.tv_sec * 1000000000ULL + timer.it_value.tv_nsec);
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if (!smokey_assert(diff < 2000000000))
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return -EINVAL;
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ret = smokey_check_errno(read(t, &ticks, sizeof(ticks)));
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if (ret < 0)
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return ret;
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if (!smokey_assert(ticks == 1))
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return -EINVAL;
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return smokey_check_errno(close(t));
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}
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static int run_posix_clock(struct smokey_test *t, int argc, char *const argv[])
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{
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int ret;
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ret = clock_increase_before_oneshot_timer_first_tick();
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if (ret)
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return ret;
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ret = clock_increase_before_periodic_timer_first_tick();
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if (ret)
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return ret;
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ret = clock_increase_after_periodic_timer_first_tick();
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if (ret)
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return ret;
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ret = clock_decrease_before_oneshot_timer_first_tick();
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if (ret)
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return ret;
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ret = clock_decrease_before_periodic_timer_first_tick();
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if (ret)
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return ret;
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return clock_decrease_after_periodic_timer_first_tick();
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}
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