debugging memory allocation

[Marko Riedel]

Hi folks,

I am sending a code fragment that you may find useful. It prints the
classes that have the most objects allocated. Paste into your program and
call with the number of classes you wish to see. Here is the code:



typedef struct {
    Class what;
    long count;
} debugclinf;

int cmpbycount(const void *a, const void *b)
{
    return ((debugclinf *)b)->count-((debugclinf *)a)->count;
}

void classlist(int top)
{
    Class *list = GSDebugAllocationClassList(), *ptr = list;
    int lsize = 0;
    while(*ptr!=NULL){
        lsize++;
        ptr++;
    }
    
    if(top>lsize){
        top=lsize;
    }

    debugclinf clist[lsize];
    int ind = 0; ptr = list;
    while(*ptr!=NULL){
        clist[ind].what = *ptr;
        clist[ind].count = GSDebugAllocationCount(*ptr);
        ind++;
        ptr++;
    }

    qsort(clist, lsize, sizeof(debugclinf), cmpbycount);

    for(ind=0; ind<top; ind++){
        GSPrintf(stdout, @"%12ld %@\n", 
                 clist[ind].count, 
                 NSStringFromClass(clist[ind].what));
    }
}


This has helped me find memory leaks.

Best regards,

Marko



+-------------------------------------------------------------+
| Marko Riedel, EDV Neue Arbeit gGmbH, markoriedelde@yahoo.de |
| http://www.geocities.com/markoriedelde/index.html           |
+-------------------------------------------------------------+


        

        
                
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