krowitz@mit-kermit.UUCP (David Krowitz) (08/03/87)
I've been poking around with IOS trying to write a section of
code which delete a file after it has been processed. It seems
that I must have the file open for write-access before calling
IOS_$DELETE, but I can't always set write access since another
process may have the file open for reading. Can anyone give me
a pointer on how to implement a delete-when-unlocked feature
similar to the -DU option of DLF? I've tried using
IOS_$SET_OBJ_FLAG to set the delete-on-close flag, but that
also seems to require that the file be opened for writing.
-- David Krowitz
mit-erl!mit-kermit!krowitz@eddie.mit.edu
mit-erl!mit-kermit!krowitz@mit-eddie.arpa
krowitz@mit-mc.arpa
(in order of decreasing preference)thompson@calgary.UUCP (Bruce Thompson) (08/05/87)
In article <8708031813.AA11609@EDDIE.MIT.EDU>, krowitz@mit-kermit.UUCP (David Krowitz) writes: > I've been poking around with IOS trying to write a section of > code which delete a file after it has been processed. It seems > that I must have the file open for write-access before calling > IOS_$DELETE, but I can't always set write access since another > process may have the file open for reading. Can anyone give me > a pointer on how to implement a delete-when-unlocked feature > similar to the -DU option of DLF? I've tried using > IOS_$SET_OBJ_FLAG to set the delete-on-close flag, but that > also seems to require that the file be opened for writing. The best suggestion I can make is to try NAME_$DELETE_FILE. Presumably you've got the pathname around somewhere. I can't guarantee that this will work if the object's locked, but the NAME error codes don't say anything about locked objuects. Best of luck. While I'm here, here's a question that's been bugging me for some time. Can someone explain why it is that whenever the Cartridge tape is active ALL activity on that node ceases? Here's the set-up: We have a DN3000 with 73M disk and Cart. Partnered to this node is a DN3000 mono. with no disk. When the Cart is active even PAGING from the diskless node halts until the Cart stops! Any ideas why this is? Thankx, Bruce. ------------------------------------------------------------------------------ Bruce Thompson | Disclaimer? But...but... I didn't University of Calgary, | say anything....really! Well, Computer Science Department | nothing of any interest anyways. (403)220-3538 or (403)220-5109 (office) |