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/****************************************************************************
* hn70ap/apps/libhn70ap/timer.c
*
* Copyright (C) 2018 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <semaphore.h>
#include <time.h>
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struct timer_s
{
struct timer_s *next; /* List link */
int id; /* Timer identifier, for deletion */
struct timespec expiration; /* Expiration date, checked in timer thread */
uint32_t repeat_delay; /* If zero, one shoot, else, reload delay */
void *arg; /* Callback argument */
void (*callback)(void *arg); /* Timer callback */
};
struct timer_s *g_timers_head;
struct timer_s *g_timers_tail;
void *timer_thread(void *arg)
{
sem_t sem;
struct timespec tout;
sem_init(&sem, 0, 0);
printf("Starting timer thread\n");
while(true)
{
clock_gettime(CLOCK_REALTIME, &tout);
tout.tv_nsec += 100000000;
if(tout.tv_nsec > 1000000000)
{
tout.tv_nsec -= 1000000000;
tout.tv_sec += 1;
}
sem_timedwait(&sem, &tout);
printf("tick\n");
}
}