Re: Stop NSFileManager copyFile in progress? Can you kill a thread?
Re: Stop NSFileManager copyFile in progress? Can you kill a thread?
- Subject: Re: Stop NSFileManager copyFile in progress? Can you kill a thread?
- From: "Adam R. Maxwell" <email@hidden>
- Date: Mon, 10 Nov 2008 18:25:43 -0800
On Nov 10, 2008, at 1:45 PM, David wrote:
I have NSFIleManager copying files in a secondary thread. The user can
select to cancel the copy.
Is there a way to force NSFileManager to stop copying a file? The
files could be of arbitrary size. A large file could take quite a
while to end. I currently check if the thread has been cancelled
between files, but I can't figure out how to stop it if its in the
middle of copying one file.
Is there a way to make NSFileManager stop a copy operation?
Is there a way to forcibly kill a thread and thereby stop
NSFileManager?
Killing the thread is generally not a good solution, even if you can
work it out with pthread functions. In your case, I'd switch to the
Carbon File Manager [1] and its asynchronous copying functions.
Specifically, look at FSCopyObjectAsync or FSPathCopyObjectAsync,
which can evidently be cancelled with FSFileOperationCancel (I'm not
sure if you also have to use FSFileOperationUnscheduleFromRunLoop).
--
Adam
[1] http://developer.apple.com/documentation/Carbon/Reference/File_Manager/Reference/reference.html
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