I'm no expert, but I'm pretty sure linux does have locking in various
increments. File locking being the easiest, then access to portions of
said file. You may need to use various interfaces to accomplish the
tasks, but there are several programs I use regularly on linux that
couldn't function properly without some form of locking/sharing. You
may need to do some research into how linux handles such things, but I'm
positive such apis/includes exist. It's kind of required considering the
multitasking nature of the os.
I'd be extremely surprised if MacOS didn't have something similar,
considering it's based on Free BSD, and like linux, BSD almost has to
have such facilities, just because of it's very nature. Perhaps you're
not looking in the right places for documented information on such
things, or perhaps I misunderstood the issue, and if so, I apologize for
the confusion, but I can't imagine any way linux and MacOS don't have
locking/sharing as part of the os in some way.
On 3/3/2022 11:38 PM, Ralf Quint wrote:
On 3/3/2022 3:36 PM, Eric Auer wrote:
I don't believe that solution supports multiple node access to the
same folder.
SMB (i.e. MSCLIENT and Samba) were designed for this use case.
What makes you think so? Concurrent access to files is something
already handled by SHARE even in non-networked DOS contexts, so
it would not be surprising at all if DOSEMU2 supports this :-)
https://en.wikipedia.org/wiki/SHARE.EXE
Actually the question is more exciting than I thought:
https://stackoverflow.com/questions/1446891/record-locking-problem-between-linux-and-windows/65039196#65039196
Thanks to Stas for the pointer to this Stackoverflow thread :-)
Well, the short and gritty is that there is no OS beside DOS and (to
some degree) Windows have proper record locking, on both Linux and
macOS, it is pretty much non-existent, in any universally usable
approach. I am currently dealing with a programming project of mine
where I have to pretty much change all my record locking code even for
Windows and completely omit it in the Linux and macOS versions.
Ralf
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