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RaptureXML を使用して、さまざまなフィルター (かなり複雑な構造を持つ) を記述した XML ファイルを解析し、それを Obj-C オブジェクトとして作成しています。すべて正常に動作します！

ただし、Instruments は libxml2.2.dylib でいくつかのリークを検出し (スクリーンショットを参照)、この問題を解決するのに役立つ情報をオンラインで見つけることができません。

Leaks Instrument のスクリーンショットへのリンクを次に示します (まだ sof に投稿できません...)。

http://imageshack.us/photo/my-images/850/bildschirmfoto20120507ud.png/

xml ファイルを解析するために使用しているコードは次のとおりです。

RXMLElement *rootXML = [RXMLElement elementFromXMLData:xmlDataFile];

FilterLogic_Management *filterManager = [[FilterLogic_Management alloc] init];

NSString *queryPath = [NSString stringWithFormat:@"//%@[@id=%i]/filterSettings/fqFilter", FilterTypeAsString, FilterNum];

//WHAT AM I DOING? Consider two filter types: Distance and Price. Each filter type consists of different thresholds (e.g., <8 $;  8 - 15 $; > 15 $). All of these values are in an XML file which I need to parse and translate into my "real" filters that I use in the App.

//Step 1: Iterate over all FilterTypes to find the entry in the XML file that describes the currently selected FilterType and its FilterNum

[rootXML queryPath usingBlock:^(RXMLElement *filterElement) {

    NSMutableArray *currentThresholds = [[NSMutableArray alloc] init];

    float currentWeight = [filterElement attribute:@"weightFactor"].floatValue; //e.g., 1.0           
    NSString *currentMarkerUnit = [filterElement attribute:@"markerUnit"]; //e.g., $ or €
    NSString *currentFilterType = [filterElement attribute:@"groupType"]; //e.g., "Distance" or "Price"



    //Step 2: Iterate over all Filters for current FilterType <- a FilterType consists of an array of Filters...


    [filterElement iterate:@"filter" usingBlock: ^(RXMLElement *filter) {
        NSString *filterType = [filter attribute:@"filterType"];

        if(filterType != LogicalConjunction){
            //Step 3-a: Create threshold with more than one threshold

            float threshold = [filter attribute:@"threshold"].floatValue;

            FilterLogic_FilterThreshold *newThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeWithOneThreshold:threshold FilterWrapperType:filterTypeAsEnum MarkerUnit:currentMarkerUnit IsInitiallyActive:isInitiallyActive];

            [currentThresholds addObject:newThreshold];
        }else{
            //Step 3-b: Create threshold with multiple thresholds
            NSLog(@"Creating filter with multiple thresholds");

            FilterLogic_FilterThreshold *logicalThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeLogicalThreshold:filterTypeAsEnum MarkerUnit:currentMarkerUnit IsInitiallyActive:isInitiallyActive];

            NSMutableArray *subFilterThresholds = [[NSMutableArray alloc] init];
            [filter iterate:@"filter" usingBlock: ^(RXMLElement *subFilter) {
                //Step-3b-x Iterate over sub-thresholds
                float threshold = [subFilter attribute:@"threshold"].floatValue;

                FilterLogic_FilterThreshold *subFilterThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeWithOneThreshold:threshold];


                [subFilterThresholds addObject:subFilterThreshold];

            }];
            if([subFilterThresholds count]>1)
            {
                FilterLogic_FilterThreshold *newThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeFromLowerFilterThreshold:[subFilterThresholds objectAtIndex:0] UpperFilterThreshold:[subFilterThresholds objectAtIndex:1] LogicalFilterThreshold:logicalThreshold];

                [currentThresholds addObject:newThreshold];
            }

        }
    }];    

    FilterLogic_Filter *newFilter = [[FilterLogic_Filter alloc] initFilterWithType:FilterTypeAsEnum ArrayOfFilterLogic_FilterThresholds:currentThresholds Weight:currentWeight InitiallyActive:YES];



    [filterManager registerFilterWrapper:newFilter];

}];

//thought that these commands might help... it seems they don't. Probably misusing them!
xmlCleanupMemory(); 
xmlCleanupParser();

//if([filterManager countOfFilters]>0){
    NSLog(@"Filter parsing done!");
    return filterManager;

ヘルプ/アドバイスをありがとうございました!!

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queryPath usingBlock ビット全体を @autoreleasepool {...} に入れてみてください。ただのアイデア。

于 2012-05-14T19:32:26.010 に答える