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RIOT/tests/sys/xtimer_now32_overflow/main.c

60 lines
1.3 KiB
C

/*
* Copyright (C) 2020 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief timer test application
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*
* @}
*/
#include <stdio.h>
#include "xtimer.h"
static void _callback(void *arg)
{
(void)arg;
}
static xtimer_t t1 = { .callback=_callback };
static xtimer_t t2 = { .callback=_callback };
int main(void)
{
/* ensure that xtimer_now64() is greater than UINT32_MAX
* and the upper 32bit of xtimer_now64() equal 1 */
_xtimer_current_time = (1LLU << 32U);
xtimer_init();
/* set to 100s (far in the future) */
xtimer_set(&t1, 100000000LU);
xtimer_set(&t2, 100000000LU);
/* sleep 1 ms (uses a third xtimer internally).
* shooting this timer did set all following short timer's to have a
* long_start_time of 0. The timer_callback main loop would correct the
* timer_list_head, but not the following.
*/
xtimer_usleep(1000);
if (t2.long_start_time == 1) {
puts("[SUCCESS]");
}
else {
puts("[FAILED]");
}
return 0;
}