joshyfun at gmail.com
Sun Sep 4 13:44:25 CEST 2016
El 04/09/2016 a las 7:15, Michael Van Canneyt escribió:
>> In the other hand a cache system is powerful than a buffered system if
>> you are writing something like a filesystem over a TFileStream where
>> you may need to jump here and there to read data, file allocation
>> tables, attributes, and so on, in this case a cache with multiple
>> pages instead just one improves the result (avoid multiple reads in
>> the same zones).
> And why did you not use the bufstream unit of FPC ?
> The TBufStream stream implemented there works with any other stream, not
> just files.
In fact I wrote my code over TStream but in Delphi the class is
inherited from TFileStream so I take my "TStreamFilter" and adapt it to
inherit from TFileStream just as Delphi do.
The second powerful reason is that I was not aware about TBufStream :)
TBufStream does support seek ? And SetSize ?
My code like TBufStream inherits from TStream. Which is the advantage of
inherit from TOwnerStream ?
More information about the fpc-devel