I just spent way too much time testing. I hope my table is understandable.
CONDITION SAFETY OFF - CATCH MESSAGE SAFETY ON - CATCH MESSAGE Closed file exists None (file is overwritten) Messbox only Target directory read only Cannot create file Cannot create file File open via FOPEN()local File is in use File is in use File open via FOPEN()remote Cannot create file Messbox if O - Cannot create file File open via Notepad None (file is overwritten) Messbox only File open via Word Cannot create file Messbox if O - Cannot create file File copy in progress Cannot create file Messbox if O - Cannot create file These tests were done from two workstations. One ran the code and the other controlled the status of the file. The FOPEN() local is an exception as that was done in the machine running the code. I used the unbuffered read/write option on FOPEN() for the results recorded here. The default read/only appeared to match the Notepad results. Joe Yoder >>Based on my experience with trying to trap errors from a Copy File To >>command, I'm guessing that one copy would succeed and the other user >>would get the Interactive Message Window that states that the file >>already exists and asks what to do. Only the operating system on the >>server knows which of the two simultanious copy commands got it's >>attention first. > >Date: Tue, 03 Jul 2007 22:27:27 -0400 >From: Ken Dibble >To: [EMAIL PROTECTED] >Subject: re: Simultaneous Copying?? > >Thanks, Joe. > >Since my app runs with SET SAFETY OFF, the user wouldn't see such a message >and COPY FILE would merrily overwrite the first-laid-down bits with the >second user's copy while still writing the last of the first user's copy? > >Doesn't copying a flat file imply a lock on that file until the copying is >done? Or am I completely misunderstanding how this works? > >Thanks. > >Ken >www.stic-cil.org > > [excessive quoting removed by server] _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[EMAIL PROTECTED] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
