nes-proj/examples/libs/energest/example-energest.c

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2017-11-01 23:09:53 +00:00
/*
* Copyright (c) 2017, RISE SICS.
* All rights reserved.
*
* 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 of the copyright holder 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 HOLDER 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 HOLDER 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 <stdio.h>
#include "contiki.h"
#include "sys/energest.h"
PROCESS(energest_example_process, "energest example process");
AUTOSTART_PROCESSES(&energest_example_process);
/*---------------------------------------------------------------------------*/
static inline unsigned long
to_seconds(uint64_t time)
{
return (unsigned long)(time / ENERGEST_SECOND);
}
/*---------------------------------------------------------------------------*/
/*
* This Process will periodically print energest values for the last minute.
*
*/
PROCESS_THREAD(energest_example_process, ev, data)
{
static struct etimer periodic_timer;
PROCESS_BEGIN();
etimer_set(&periodic_timer, CLOCK_SECOND * 10);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&periodic_timer));
etimer_reset(&periodic_timer);
/*
* Update all energest times. Should always be called before energest
* times are read.
*/
energest_flush();
printf("\nEnergest:\n");
printf(" CPU %4lus LPM %4lus DEEP LPM %4lus Total time %lus\n",
to_seconds(energest_type_time(ENERGEST_TYPE_CPU)),
to_seconds(energest_type_time(ENERGEST_TYPE_LPM)),
to_seconds(energest_type_time(ENERGEST_TYPE_DEEP_LPM)),
to_seconds(ENERGEST_GET_TOTAL_TIME()));
printf(" Radio LISTEN %4lus TRANSMIT %4lus OFF %4lus\n",
to_seconds(energest_type_time(ENERGEST_TYPE_LISTEN)),
to_seconds(energest_type_time(ENERGEST_TYPE_TRANSMIT)),
to_seconds(ENERGEST_GET_TOTAL_TIME()
- energest_type_time(ENERGEST_TYPE_TRANSMIT)
- energest_type_time(ENERGEST_TYPE_LISTEN)));
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/