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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*/
#include <config.h>
#include <stdio.h>
#include <sys/time.h>
#include <LongBow/longBow_MeasureTime.h>
#include <LongBow/private/longBow_Memory.h>
struct longBowMeasureTime {
struct timeval start;
struct timeval stop;
unsigned int iterations;
};
LongBowMeasureTime *
longBowMeasureTime_Start(unsigned int iterations)
{
LongBowMeasureTime *result = longBowMemory_Allocate(sizeof(LongBowMeasureTime));
if (result != NULL) {
gettimeofday(&result->start, NULL);
result->iterations = iterations;
result->stop = (struct timeval) { .tv_sec = 0, .tv_usec = 0 };
}
return result;
}
LongBowMeasureTime *
longBowMeasureTime_Stop(LongBowMeasureTime *measure)
{
if (measure != NULL) {
gettimeofday(&measure->stop, NULL);
}
return measure;
}
uint64_t
longBowMeasureTime_GetMicroseconds(const LongBowMeasureTime *measure)
{
struct timeval result;
timersub(&(measure->stop), &(measure->start), &result);
return ((uint64_t) result.tv_sec * 1000000ULL) + ((uint64_t) result.tv_usec);
}
uint64_t
longBowMeasureTime_GetNanoseconds(const LongBowMeasureTime *measure)
{
struct timeval result;
timersub(&(measure->stop), &(measure->start), &result);
return ((uint64_t) result.tv_sec * 1000000000ULL) + ((uint64_t) result.tv_usec * 1000);
}
unsigned int
longBowMeasureTime_CountDown(LongBowMeasureTime *measure)
{
return measure->iterations--;
}
bool
longBowMeasureTime_Report(LongBowMeasureTime *measure, const char *file, const char *function, unsigned int line)
{
struct timeval result;
if (measure->stop.tv_sec == 0 && measure->stop.tv_usec == 0) {
longBowMeasureTime_Stop(measure);
}
timersub(&(measure->stop), &(measure->start), &result);
printf("%s %s %d %ld.%06ld\n", file, function, line, result.tv_sec, (long) result.tv_usec);
return true;
}
void
longBowMeasureTime_Destroy(LongBowMeasureTime **instancePtr)
{
longBowMemory_Deallocate((void **) instancePtr);
}
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