[SOLVED] Strange problems with exported function...

ne0h · Post by **ne0h** » Wed Dec 23, 2009 4:12 am

Hi, I've some problem with this function.
I'm using it by exporting from User prx to Vsh pbp,
it works for directory with no more than 2 subdirectories, otherwise it crash...
I can't undestrand why, probably something stupid, but maybe not....
I've thing that it could be a stack overflow but I've tryed to increase the calling thread stack and it still doesn't works...

Code: Select all

SceUInt64 XioDirSize&#40;char* Dir&#41;
&#123;
    return XioDirSizeFunct&#40;Dir, 0&#41;;
&#125;

SceUInt64 XioDirSizeFunct&#40;char* Dir, SceUInt64 Size&#41;
&#123;
    int dl = sceIoDopen&#40;Dir&#41;;
    if&#40;dl < 0&#41;
        return 0;
    SceIoDirent sid;
    char Fullname&#91;256&#93;;
    memset&#40;&sid, 0, sizeof &#40;SceIoDirent&#41;&#41;;
    while&#40;sceIoDread&#40;dl, &sid&#41; > 0&#41;
    &#123;
        if&#40;&#40;strcmp&#40;sid.d_name, "."&#41; == 0&#41; || &#40;strcmp&#40;sid.d_name, ".."&#41; == 0&#41;&#41;
            continue;
        
        sprintf&#40;Fullname, "%s/%s", Dir, sid.d_name&#41;;

        if&#40;FIO_S_ISDIR&#40;sid.d_stat.st_mode&#41;&#41;
        &#123;
            XioDirSizeFunct&#40;Fullname, Size&#41;;
        &#125;
        else
        &#123;
            Size += sid.d_stat.st_size;
            memset&#40;&sid, 0, sizeof &#40;SceIoDirent&#41;&#41;;
        &#125;
    &#125;
    sceIoDclose&#40;dl&#41;;
    return Size;
&#125;

A question, exported functions use the calling thread stack?

psPea · Post by **psPea** » Wed Dec 23, 2009 4:38 am

Two points
1. You calculation is wrong

Code: Select all

        if&#40;FIO_S_ISDIR&#40;sid.d_stat.st_mode&#41;&#41; 
        &#123; 
            XioDirSizeFunct&#40;Fullname, Size&#41;; 
        &#125;

should be

Code: Select all

        if&#40;FIO_S_ISDIR&#40;sid.d_stat.st_mode&#41;&#41; 
        &#123; 
            Size = XioDirSizeFunct&#40;Fullname, Size&#41;; 
        &#125;

2. I don't know if this matters but you didn't memset sid after getting "." or ".."

ne0h · Post by **ne0h** » Wed Dec 23, 2009 4:41 am

Yes, I know ( for the 1st point ), I've tryed before to do it with a pointer, and I haven't added "Size = ...".
For the 2nd, I'll try but I don't think that can be that...
Sorry for my english,

ne0h

ne0h · Post by **ne0h** » Wed Dec 23, 2009 4:42 am

Still doesn't works...

psPea · Post by **psPea** » Wed Dec 23, 2009 5:21 am

try using psplink to to find the type and location of the error

ne0h · Post by **ne0h** » Thu Dec 24, 2009 12:14 am

Can't use psplink, have no memory...
There's a way to install exception handler on 5.xx fws?

psPea · Post by **psPea** » Thu Dec 24, 2009 8:47 am

Sakya posted one
Search and thou shalt findeth

ne0h · Post by **ne0h** » Fri Dec 25, 2009 3:27 am

Resolved...
"Simple" stack overflow in cross-thread operation...