RE: [boost] Filesystem attributes

From: Glen Knowles (gknowles_at_[hidden])
Date: 2002-03-03 19:13:27

> A related point:  Did we decide on write-through or explicit-commit 
> semantics for attributes?
> 
> There was discussion that explicit-commit semantics were 
> needed, rather 
> than the write-through semantics in Dietmar's original 
> implementation (if I 
> read the code correctly:-)  But was it ever resolved for sure 
> and if so 
> what is the rationale?
> 
> Is the rationale just efficiency over slow connections, or is 
> there also a 
> fear that write-through of individual attributes could create an 
> inconsistent file state (and thus get tossed by the OS)?
> 

I'm definitely afraid of them getting tossed. The only way I would support
write-through is if there's a way to set attributes en mass.  This would
probably include the ability to:
1. copy attributes from a file object to a temporary that does not refer to
a real file
2. adjust the attributes on the temporary
3. set the attributes of another file from the temporary "collection" of
attributes.