Re: More Storeio questions

[Roland McGrath]

>      I don't understand why an array of pointers of "store_class" are
> passed to sprcific type opens, like store_concat_open. 

That argument is only relevant for stores that use child stores, such as
concat.  When opening such a store by name, the types and names of each
child store are encoded in the aggregate store's (e.g. the concat store's)
name.  So this class list is used when such store classes' open functions
call store_open or similar functions to open the child stores.