OpenEuphoria

Euphoria Ticket #825: Writing large files fails (truncated) on Windows

• Reported by CoJaBo2 Dec 01, 2012
• 6 comments

00:59 < any33068445> results for wtest.tmp: 
01:00 < any33068445> size on disk : 4.00 GB (4,294,971,392 bytes) 
01:00 < any33068445> Size : 4.00 GB (4,294,971,096 bytes) 
01:01 < any33068445> dosbox: 
01:01 < any33068445> D:\ngrams>dir wtest.tmp 
01:01 < any33068445>  Directory of D:\ngrams 
01:01 < any33068445> 11/30/2012  11:58 PM     4,294,971,096 wtest.tmp 
01:01 < any33068445>                1 File(s)  4,294,971,096 bytes 
01:01 < any33068445> 2^32 = 4,294,967,296 

Euphoria Interpreter v4.0.4  
   Windows, Using Managed Memory  
   Revision Date: 2012-04-02, Id: 11a49820121f  
01:07 < any33068445> Euphoria Interpreter v4.1.0 development 
01:07 < any33068445>    32-bit Windows, Using System Memory 
01:07 < any33068445>    Revision Date: 2012-11-25 16:54:04, Id: 5878:b2a53838e01f 

Details

1. Comment by petelomax Dec 01, 2012

Look for calls to SetFilePointer, check the third parameter is not NULL. If that call is buried inside clib you may need to call it directly. HTH.

2. Comment by CoJaBo2 Dec 02, 2012

This does not affect v4.1.0, only 4.0.4; was going by a report on IRC which was evidently not correct.

3. Comment by useless_ Dec 02, 2012

Nevermind that i had added :

ADDED part 3: eui.exe and euiw.exe on the Nov28 build of v4.1.0 work properly.

to my Euphorum post, and had said the cure to the bug was to use the Nov28 build of v4.1.0.

4. Comment by jimcbrown Dec 02, 2012

It's necessary to update the ticket with that information. If it's not directly in a ticket, it's more likely to be forgotten.

5. Comment by CoJaBo2 Dec 02, 2012

This now appears to be a result of disk corruption; it works for me in 4.0.4 and 4.0.5, unless_ can't reproduce it either (and it sometimes seems to be creating files of negative sizes).

6. Comment by useless_ Dec 03, 2012

See my post in Euphorum.

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