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Re: [Gnu-arch-users] tla1.2 on cygwin -> FAT partition
From: |
lode . leroy |
Subject: |
Re: [Gnu-arch-users] tla1.2 on cygwin -> FAT partition |
Date: |
Fri, 5 Mar 2004 11:25:38 +0100 (CET) |
User-agent: |
SquirrelMail/1.4.1 |
> address@hidden wrote:
>
>>The only problem for using it on FAT is that tla depends on "inode"
>>values, and FAT does not have them, NTFS does have a similar thing.
>>
>>
> I've just had a quick glance at the Linux vfat docs. Apparently
> directory entries have an entry for the start cluster number, which is a
> 16-bit integer. It wouldn't surprise me at all if that's what Linux
> uses for the inode. Is that available?
>
> Aaron
>
Here is a small program to print out the "inode" number
returned by cygwin.
#include <sys/stat.h>
main(int argc, char* argv[])
{
char* path;
struct stat buf;
int err;
path = argv[1];
err = stat(path, &buf);
if (err != 0) {
perror("stat failed");
} else {
printf("ino=%u\n", buf.st_ino);
}
}
let's see what happens:
cd /cygwin/ntfs-partition
$ touch t
$ inode t
ino=45060
$ mv t x
$ inode x
ino=45060
cd /cygwin/fat-partition
$ touch t
$ inode t
ino=3633626
$ mv t x
$ inode x
ino=3633630
Cygwin does return an inode (I thought it didn't, but it might have been
added recently, because I update cygwin from time to time).
It looks like they're using the same trick as linux.
(That makes me wonder: does tla work on a VFAT partition
that is mounted on a linux machine? Could someone try this out?)
Now, the issue is that tla uses the inode value to detect that a file
was renamed. Same inode number == same file. This logic fails
on FAT partitions.
-- lode
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- Re: [Gnu-arch-users] tla1.2 on cygwin, (continued)
RE: [Gnu-arch-users] tla1.2 on cygwin, lode . leroy, 2004/03/04
Re: [Gnu-arch-users] tla1.2 on cygwin, Aaron Bentley, 2004/03/08
Re: [Gnu-arch-users] tla1.2 on cygwin -> FAT partition, Johannes Berg, 2004/03/10
[Gnu-arch-users] Re: tla1.2 on cygwin -> FAT partition, Greek0, 2004/03/10
[Gnu-arch-users] Re: tla1.2 on cygwin -> FAT partition, Greek0, 2004/03/11
Re: [Gnu-arch-users] tla1.2 on cygwin, David Brown, 2004/03/10
Re: [Gnu-arch-users] tla1.2 on cygwin, Pat Galea, 2004/03/10