count of files ?

shendeswanand · 01-23-2006, 12:21 AM

Hi this is swanand.
I am doing a project in my college. It deals with the filesystem ext2 . I wanted to check if a file is been handled by my process only and that no other process is accessing that file. How could i do that ? Is there any way to be sure that no other process is handling that particular file at that moment?
I tried to check the count field in the inode,dentry,file objects, but all of them show 1, even when i have opened that file on different desktops in different editors ?????
Can you please help me out?
Thank you.
my e-mail address : swanandshende@yahoo.co.uk.

bigrigdriver · 01-23-2006, 12:28 AM

See the man pages for fuser.

megaspaz · 01-23-2006, 12:39 AM

what's up with the friggin huge-ass purple sh*t? I don't have a problem reading and neither do most people here. If you want to emphasize something, use the bb bold tag.
And putting your email address is useless and selfish.

you can also look at lsof.

timmeke · 01-23-2006, 02:51 AM

Never mind the e-mail address. If he wants to attract spam, that's his problem.
As for the purple stuff, I think it's forbidden (or at least discouraged) in the forum rules.
So we might report him to the moderators...
But then again, we've all been newbies at some point, so why bother.
I think he gets the message now.

As for his question, "lsof" and "fuser" are indeed the way to go.
If you want to forbid other processes from accessing files, do some research on file locking.