Classes/Statistics.h
/* |
Copyright (C) 2015 Apple Inc. All Rights Reserved. |
See LICENSE.txt for this sample’s licensing information |
Abstract: |
Collection of C functions for database storage of parser performance metrics. |
*/ |
@import UIKit; |
#import "iTunesRSSParser.h" |
/* |
These functions encapsulate all interactions with a SQLite database used to store the amount of time taken to download |
and parse XML data. The measurements are stored by parser type, and aggregate queries retrieve the mean measurements, again |
by parser type. |
*/ |
// Close the database. This should be called when the application terminates. |
void CloseStatisticsDatabase(void); |
// Queries: |
// Retrieve the number of measurements available for a parser of a given type. |
NSUInteger NumberOfRunsForParserType(XMLParserType type); |
// Retrieve the average number of seconds from starting the download to finishing the download for a parser of a given type. |
double MeanDownloadTimeForParserType(XMLParserType type); |
// Retrieve the average number of seconds spent in parsing code for a parser of a given type. |
double MeanParseTimeForParserType(XMLParserType type); |
// Retrieve the average number of seconds from starting the download to finishing the parse for a parser of a given type. |
double MeanTotalTimeForParserType(XMLParserType type); |
// Delete all stored measurements. |
void ResetStatisticsDatabase(void); |
// Store a measurement to the database. |
void WriteStatisticToDatabase(XMLParserType type, double downloadDuration, double parseDuration, double totalDuration); |
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