RE: How to know a file is busy(read/write)?

FROM : shengjun_guan (???)
DATE : Fri Jan 11 06:19:50 2008

hi,

Because i have one application to monitor one folder that files are created in.
eg. file1 and file2 have been created in the folder. My application will send the file1 and file2
to other application to open them.
In some case, file1 have been finishing created.And file2 is creating . So, if i send the tow files for
opening to other application. file2 will open fail.

So, i want to check the file2 if is busy before i send.

thanks a lot .

ann


-----Original Message-----
From: Horn Deric [mailto:<email_removed>]
Sent: 2008/1/11 [¬P´Á¤­] ¤W¤È 11:08
To: shengjun_guan (ºÞÁn«T)
Cc: <email_removed>
Subject: Re: How to know a file is busy(read/write)?

What are you trying to do with the file?

Even if there were a perfect API to provide detailed status of a file, 
that status can change between the time you check and act on the file.

In most situations I encounter the real solution is to act on the file 
and then handle the error case at that time.

Deric Horn
Application Technologies Evangelist
Apple Worldwide Developer Relations
<email_removed>

On Jan 10, 2008, at 6:24 PM, shengjun_guan (ºÞÁn«T) wrote:

> Deall all;
>    I want to know a file is busy before i use it. For example, when 
> you clean Tash, and some file is using, sysytem will tell you can't 
> remove it. I used NSFileBusy(in NSFileManager), but it didn't 
> succseful. Waiting for you help. Thanks a lot.
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