RE: [Yaffs] An observation about "useHeaderFileSize" !

Hi

If
if(dev->isYaffs2)
{
dev->useHeaderFileSize = 1;
}
is true, in that case, oh->fileSize doesnot get the actual file size.
Thus object's file size remains as 0. While scanning , yaffs2 assigns
the
Size of the file to scannedFileSize. And then the next condition is

    else if(tags.chunkId > 0)
    {
    ///code
        if(!dev->useHeaderFileSize)
        {
            in->variant.fileVariant.fileSize = 

in->variant.fileVariant.scannedFileSize;
        }
    ///code
    }

And last but not the least
"The useHeaderFileSize option is only useful for YAFFS1"
"Defeat this and YAFFS2 will break" ... Could you kindly throw some more
Light on that please? I feel these two statements slightly contradict.

Regards
Abhishek


-----Original Message-----
From: Charles Manning [mailto:manningc2@actrix.gen.nz]
Sent: Friday, February 04, 2005 6:02 AM
To: Abhishek Bhattacharya; yaffs@stoneboat.aleph1.co.uk
Subject: Re: [Yaffs] An observation about "useHeaderFileSize" !

>The useHeaderFileSize option is only useful for YAFFS1.

>YAFFS2 needs to use this otherwise various things break.
>For this reason, yaffs_GutsInitialise forces this on for YAFFS2 in the
the following lines:

>if(dev->isYaffs2)
>{
>dev->useHeaderFileSize = 1;
>}

>Defeat this and YAFFS2 will break.


On Friday 04 February 2005 01:08, Abhishek Bhattacharya wrote:
>> Hello Yaffs ers and Charles
>>
>> I want to report an observation I had when testing Yaffs2 direct
>> interface. In yaffs2 we have the option of "useHeaderFileSize".
>> Now in yaffs_Scan() , after we scan all blocks, we check if "yaffs2"
>> option is enabled or not.
>>
>> If yaffs2 is enabled we make dev->useHeaderFileSize = 1. Upon
enabling
>> this, the expected result would be , that object would get the file
>> size from object header, and not from scanned file size.
>>
>> Now when we do dumpDir(const char* path), my observation was that ,
it
>>
shows all the files , but sizes are shown as 0.
>>
>> At this point , I tried to make dev->useHeaderFileSize = 0. So now ,
>> we directly assign the object's scanned file size to object's file
>> size and VOILA!!! Everything seems to work fine. This time
>> dumpDir(const char* path) returns all the files with there respective

>> sizes!!!
>>
>> Please let me know if you have encountered any such issues!
>>
>> Thanks
>>
>> Abhishek
>>

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