giuliomoro@42: /*
giuliomoro@42:  * intervals.h
giuliomoro@42:  *
giuliomoro@42:  *  Created on: 18 May 2015
giuliomoro@42:  *      Author: unmanaged
giuliomoro@42:  */
giuliomoro@42: 
giuliomoro@42: #include <unistd.h>
giuliomoro@42: #include <stdio.h>
giuliomoro@42: #include <stdlib.h>
giuliomoro@42: 
giuliomoro@42: #include <native/timer.h>
giuliomoro@42: #include <rtdk.h>
giuliomoro@42: 
giuliomoro@42: #include "../include/intervals.h"
giuliomoro@42: void Interval::init(int aNumAverages, int aNumFrames, float aSamplingRate, const char *aName){
giuliomoro@42: 	enabled=false;
giuliomoro@42: 	numAverages=aNumAverages;
giuliomoro@42: 	intervals=(RTIME *)malloc(sizeof(RTIME)*numAverages);
giuliomoro@42: 	samplingRate=aSamplingRate;
giuliomoro@42: 	numFrames=aNumFrames;
giuliomoro@42: 	maxTimeus=0;
giuliomoro@42: 	intervalsPointer=0;
giuliomoro@42: 	sum=0;
giuliomoro@42: 	startTime=0;
giuliomoro@42: 
giuliomoro@42: 	if(intervals!=0)
giuliomoro@42: 		enabled=true;
giuliomoro@42: 	int len=strlen(aName);
giuliomoro@42: 	name=(char *)malloc(sizeof(char)*(len+1));
giuliomoro@42: 	strcpy(name, aName);
giuliomoro@42: 	if(name == 0)
giuliomoro@42: 		enabled=false;
giuliomoro@42: };
giuliomoro@42: Interval::Interval(){
giuliomoro@42: 	init(100,1,44100,"");
giuliomoro@42: }
giuliomoro@42: Interval::Interval(int aNumAverages){
giuliomoro@42: 	init(aNumAverages,1,44100,"");
giuliomoro@42: }
giuliomoro@42: Interval::Interval(int aNumAverages, int aNumFrames, float aSamplingRate, const char *aName){
giuliomoro@42: 	init(aNumAverages,aNumFrames,aSamplingRate,aName);
giuliomoro@42: }
giuliomoro@42: Interval::~Interval(){
giuliomoro@42: 	free(intervals);
giuliomoro@42: //			free(name);
giuliomoro@42: }
giuliomoro@42: void Interval::setNumFrames(int aNumFrames){
giuliomoro@42: 	numFrames=aNumFrames;
giuliomoro@42: };
giuliomoro@42: 
giuliomoro@42: int Interval::start(){
giuliomoro@42: //	printf("start: intervals: 0x%x, intervalsPointer: %d, numAverages: %d\n", intervals,intervalsPointer,numAverages);
giuliomoro@42: 	if(!enabled)
giuliomoro@42: 		return 0;
giuliomoro@42: 	startTime=rt_timer_read();
giuliomoro@42: 	return 1;
giuliomoro@42: }
giuliomoro@42: int Interval::resetMax(){
giuliomoro@42: 	maxTimeus=0;
giuliomoro@42: 	return 1;
giuliomoro@42: }
giuliomoro@42: int Interval::split(){ //updates
giuliomoro@42: 	if(!enabled)
giuliomoro@42: 		return 0;
giuliomoro@42: 	int currentInterval=rt_timer_read()-startTime;
giuliomoro@42: 	RTIME *currentPointer=&(intervals[intervalsPointer]);
giuliomoro@42: 	sum-=*currentPointer; //take out the oldest value from the sum
giuliomoro@42: 	*currentPointer=currentInterval;
giuliomoro@42: 	sum+=*currentPointer; //add the new value to the sum
giuliomoro@42: 	timeus=((float)sum)/numAverages/1000.0;
giuliomoro@42: 	maxTimeus=timeus>maxTimeus?timeus:maxTimeus;
giuliomoro@42: 	intervalsPointer++;
giuliomoro@42: 	if(intervalsPointer>=(numAverages-1)){
giuliomoro@42: 		intervalsPointer=0;
giuliomoro@42: 	}
giuliomoro@42: 	return 1;
giuliomoro@42: }
giuliomoro@42: void Interval::setEnabled(bool aActive){
giuliomoro@42: 	enabled=aActive;
giuliomoro@42: }
giuliomoro@42: float Interval::getTimeus(){
giuliomoro@42: 	return timeus;
giuliomoro@42: }
giuliomoro@42: float Interval::getMaxTimeus(){
giuliomoro@42: 	return maxTimeus;
giuliomoro@42: }
giuliomoro@42: void Interval::print(){
giuliomoro@42: 	rt_printf(//"sleepTimer time: 29.484us, (1.30 samples, numFrames: 2, 65.01%%). MaxTime: 30.439us, (1.34 samples, 67.12%%)\n");
giuliomoro@42: "%s time: %.3fus, (%.2f samples, numFrames: %d, %.2f%%). MaxTime: %.3fus, (%.2f samples, %.2f%%)\n",
giuliomoro@42: 			name,
giuliomoro@42: 			timeus, timeus/1000000.0*samplingRate, numFrames, timeus/1000000.0*samplingRate/numFrames * 100,
giuliomoro@42: 			maxTimeus, maxTimeus/1000000.0*samplingRate, maxTimeus/1000000.0*samplingRate/numFrames * 100);
giuliomoro@42: }