Hi Eric,
> The difference in the current implementation is that we now
> have a "cache" with two "near" fnodes in the kernel data
> segment. That way, fewer far pointers are needed, but
> several functions got more complicated. For example
> get_f_node. The other difference is that
> you use NFILES instead of a configurable number set by
> FILES=...
> in config sys :-).
ok, got it!
I'll use the old implementation :-)
>> [after] dos_cd ("C:\hello\world");
>> dos_open ("C:\hello\world\my_file.txt", O_RDWR | ...
>> dos_open ("my_file.txt", O_RDWR | O_CREAT, 0);
> As discussed earlier, dos_open is a bit "lowlevel" if you
> look at DosOpenSft, you will find that it calls truename.
> The truename function does things like add the current drive
> letter and current directory name, resolve ".." and ".", and
> make name handling case insensitive. As with your previous
> upper / lower case problem, the solution is again to use
> more truename code in your dos_open.
Ok, I'll borrow some parts from DosOpenSft()
>> I noticed that the implementation of dos_cd() doesn't write
>> or read CDSp of the drives...
> That might be an explanation for why directory access
> sometimes fails with SUBST drives or similar? I seem to
> remember that we have a bug report about this in Bugzilla,
> please check!
I'll take a look at the bug report..
> Eric
> PS: findfirst / findnext use special data structures. You
> first put your query in a buffer, then call findfirst, and
> to get followup results to the same query, you repeatedly
> call findnext. A bit ugly but we have to be MS DOS
> compatible :-p.
Your answers are always helpful and complete :-)
Enrico
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