Checking if a file has copied completly

[Dave]

Hi,

I tried this but it doesn't work, RunRev doesn't return an error. I  
then used the external module that I wrote to get around the 2 GB  
File Size Limit and that works *if* I open it with permissions set to  
"fsRdDenyPerm".

All the Best
Dave


On 30 May 2007, at 19:46, J. Landman Gay wrote:

> Dave wrote:
>> Hi,
>> The file size *may* work but as you say it's not very robust. One  
>> thing I have noticed is that if you start to copy a big file (like  
>> a .mov) and then before it's complete, double-click it so that  
>> QuickTime Player is launched then you get a message saying the  
>> file is being used by Mac OS X. If there was a way to perform the  
>> same check that would probably do the trick.
>
> I think the OS sets the file flag as "busy" during a write (at  
> least on Macs, and I assume on Windows too.) So all you should need  
> to do is try opening the file and then check the result. If it's  
> busy, you'll get the appropriate error. Keep trying until the file  
> opens.
>
> You need to use the form "open file" rather than the URL syntax:
>
>  open file <filepath>
>  get the result
>  if it is empty then
>    -- whatever you need to do here
>  end if
>
> Put that in a repeat loop or a repeating pending message that exits  
> if the result is empty, or times out after a specified amount of time.