🚀 go-pugleaf

Network Software: Lantastic
Language:  I'm using TC 2.0, but any code for DOS is fine

Does anyone have any primitives that deal with the DOS record locking scheme?
 I have tried for three days now to implement a system whereby all users have
read access to the file until someone wishes to update a record; at that
time, the file is locked, the user makes changes, then the file is unlocked;
but, to no avail.  

Would anyone who has tackled a similar situation please mail me any code or
personal comments that deal with this? 

I have a few minor questions concerning what is happening at an operating
system level:

1>  How does the TC lock() function actually work (low level)?  And...  Say
you lock the whole file, does your process (the one that made the lock) still
have RW access to the file? (apparently you do).

2>  What DOS system calls are being made to negotiate the file sharing
functions?

Thanks

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|  Mike Erwin,       UNIX Systems Administrator       Apple Computer, Inc.
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