7 Dec
2024
7 Dec
'24
10:38 p.m.
On Sat, Dec 7, 2024, 9:28 AM Arrigo Triulzi via TUHS <tuhs(a)tuhs.org> wrote:
On 7 Dec 2024, at 17:12, Arrigo Triulzi via TUHS
<tuhs(a)tuhs.org> wrote:
Yes. There were namespace hooks of a sort that one could hook into via a
TSR... I wrote something for a DOS 3.1 system that had a few initial
UNDOCUMENTED interfaces. I couldn't ever get anything to work beyond the
init...
Warner
Well, as the Unix filesystem was connected to
MS-DOS as a “network
drive” it had rudimentary opportunistic locking via the SMB
protocol which
I am not entirely sure actually translated to anything on the Unix side.
There was often data corruption when writing from multiple MS-DOS sessions
to the same file so the customer, who was particularly keen on the reading
from multiple terminals more than the writing, simply decided that only one
person could write into the inventory at one time. “Sneaker lock”?
Correction: it cannot possibly be SMB, that came later - I haven’t the
faintest idea of what the network protocol was called in MS-DOS, I just
remember you had to load something in CONFIG.SYS on MS-DOS 4 or higher to
make it work.