Re: quick way to find out if a file is in use by windows?
On Sep 10 11:46, Jurriaan wrote: I use the mv command to clean up some directories filled with temporary files. These may or may not be in use by windows. I used to detect them being in use by windows by mv failing. Now, mv is simply taking forever. I'm using cygwin 1.7.7(0.230/5/3), windows 2003 server 32 bits with all updates on a local NTFS disk. I remember reading something about this changing in the last release, but I can't find it in the archives anymore (searching for 'file in use' didn't work out). Is there any way to detect if a file is in use by windows before executing 'mv' (I really, really hope I don't have to use the 'handle.exe' utility, which takes seconds for each file...)? Alternatively, could mv timeout somewhat earlier? I control-C'ed it after 15 minutes, which is really too long already. mv does not timeout. The underlying unlink function checks if the file is in use and, if so, moves the file to the bin and sets the delete disposition so it will be deleted after the last process closes its handle to the file. If this fails, unlink silently gives up. The reason for the hang must be something else. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Re: quick way to find out if a file is in use by windows?
On Sep 10 21:22, jurri...@rivierenland.xs4all.nl wrote: mv does not timeout. The underlying unlink function checks if the file is in use and, if so, moves the file to the bin and sets the delete disposition so it will be deleted after the last process closes its handle to the file. If this fails, unlink silently gives up. The reason for the hang must be something else. Thanks for replying. I straced both mv and rm. The rm strace is at the bottom, below here first the mv strace. It only seems to hang, but the strace is filling up quickly with lots of lines like this continuously: 63 77448 [main] mv 14716 rename: status 0xC043 Is this a status mv should fail on, or is Windows incorrectly returning a status that means 'repeat and retry by all means' ? Oops. I mixed up mv and rm, so my babble about unlink was off the point. Of course mv calls the rename function and the rename function in fact has a loop which retries to rename a file or dir if a sharing violation occurs. The original idea of the retry loop was to workaround a problem with some BLODAs - virus scanners - which block newly generated files against deletion(*) for a short period of time while checking them. This breaks some applications which copy files by creating a temporary filename and then rename the temp filename to the target filename. However, the workaround was missing a break from the loop, if the sharing violation persists. I fixed that in CVS. Thanks, Corinna (*) On Windows a user needs delete permissions to rename a file. -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
RE: quick way to find out if a file is in use by windows?
Is there any way to detect if a file is in use by windows before executing 'mv' (I really, really hope I don't have to use the 'handle.exe' utility, which takes seconds for each file...)? fuser 73, Tim Conway JBS USA | 1770 Promontory Ci | Greeley, CO 80634| USA Direct: 970-506-7998 | Fax: 970.336.6195 email: timothy.con...@jbssa.com JBS Server Team -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Re: quick way to find out if a file is in use by windows?
However, the workaround was missing a break from the loop, if the sharing violation persists. I fixed that in CVS. I do love open source software like this - fixes on a friday night. I'm not sure if I'm ready to use CVS on a production system, but thanks a lot! Kind regards, Jurriaan -- Never use etc. -- it makes people think there is more where there is not or that there is not space to list it all, etc. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
