Re: How determine if file is in Trash, given Path or Alias
Re: How determine if file is in Trash, given Path or Alias
- Subject: Re: How determine if file is in Trash, given Path or Alias
- From: Gwynne Raskind <email@hidden>
- Date: Mon, 1 Jun 2009 17:53:26 -0400
On Jun 1, 2009, at 4:31 PM, Sean McBride wrote:
This is a nice trick, I wasn't aware of that function, thanks.
Perhaps a minor improvement (one call instead of two):
- (BOOL) isTrashedFileAtPath:(NSString*)path
{
Boolean inTrash = false;
const UInt8* utfPath = (UInt8*)[path UTF8String];
OSStatus err = DetermineIfPathIsEnclosedByFolder(kOnAppropriateDisk,
kTrashFolderType, utfPath, false, &inTrash);
return (noErr == err) ? (true == inTrash) : NO;
}
Probably it does the same thing behind the scenes, but why not.
For the archives: 2 more problems:
a) use fileSystemRepresentation not UTF8String.
b) with GC, 'path' may be collected before
DetermineIfPathIsEnclosedByFolder() is finished with utfPath. So best
to add a [path self] just before the 'return'.
This is a perfect example of why I would never use GC: That is the
most nonintuitive confusing behavior I have ever heard of. If I
crashed in the middle of DetermineIfPathIsEnclosedByFolder() for that
reason I would never guess that GC was responsible!
-- Gwynne
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