Re: NSDocument save incremental file package in-place
Re: NSDocument save incremental file package in-place
- Subject: Re: NSDocument save incremental file package in-place
- From: Trygve Inda <email@hidden>
- Date: Sun, 02 Mar 2014 07:12:58 -0800
- Thread-topic: NSDocument save incremental file package in-place
>> A follow up...
>>
>> Adding this to my NSDocument subclass:
>>
>> - (BOOL)writeToURL:(NSURL *)absoluteURL ofType:(NSString *)typeName
>> forSaveOperation:(NSSaveOperationType)saveOperation
>> originalContentsURL:(NSURL *)absoluteOriginalContentsURL error:(NSError
>> **)outError
>> {
>> NSError* error;
>>
>> NSFileWrapper* myFileWrapper = [self fileWrapperOfType:@"MyPackageType"
>> error:&error];
>>
>> [myFileWrapper writeToURL:absoluteURL
>> options:NSFileWrapperWritingWithNameUpdating
>> originalContentsURL:absoluteOriginalContentsURL error:&error];
>>
>> return (YES);
>> }
>>
>>
>> This still takes 40 seconds
>
> Alright, I’m running low on ideas now. But if you can make a sample project
> that exhibits the issue, I’ll cheerfully take a look at that.
>
>
Here is a test project, built from Apple's Cocoa document template.
http://www.xericdesign.com/archive/FilePackageTestProject.zip
You'll need to provide your own package of type "mydoc". It can be anything
at all... Preferably a few thousand files. The entire Document subclass for
I/O is:
-(BOOL)readFromFileWrapper:(NSFileWrapper *)fileWrapper ofType:(NSString
*)typeName error:(NSError **)outError
{
[self setDocumentFileWrapper:fileWrapper];
return YES;
}
-(NSFileWrapper *)fileWrapperOfType:(NSString *)typeName error:(NSError
**)outError
{
return documentFileWrapper;
}
Opening a package is instantaneous, but immediately saving that same package
takes 40 seconds with my 7500-file test package.
Surely I am doing something wrong here and it can be made to go much faster,
right?
Trygve
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