Re: Is cloning the same as copying in APFS?
Re: Is cloning the same as copying in APFS?
- Subject: Re: Is cloning the same as copying in APFS?
- From: Rick Mann <email@hidden>
- Date: Tue, 27 Jun 2017 14:45:40 -0700
> On Jun 27, 2017, at 14:30 , Charles Srstka <email@hidden> wrote:
>
>> On Jun 27, 2017, at 4:17 PM, Rick Mann <email@hidden> wrote:
>>
>> Thanks for that, Charles!
>>
>> I wasn't sure because of the existence of the clonefile() call in
>> <sys/clonefile.h>, implying that operation was different from copyfile(),
>> but looking more closely at the sample code, I see that you can call
>> copyfile() with COPYFILE_CLONE, which seems like it will clone if possible
>> and copy if not.
>>
>> But there didn't seem to be equivalent calls in NSFileManager, hence my
>> question.
>
> Apple clearly wants the clone feature to get used. :-) The ability to do a
> copy the old way is still there if you drop down to C, but since I can’t
> think of too many reasons to want to do that, it makes sense to leave it out
> of the high-level API.
Agreed. Thanks for the code, and for showing the other techniques. In my case,
I still have to support HFS+, and I want to do that with hard links. I wish
there was an API to clone-or-hardlink, but I can do that.
>
> Charles
>
--
Rick Mann
email@hidden
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