efsw does not work properly with CIFS/samba mounts

[SpartanJ]

Original report by Greg Lee (Bitbucket: glee_hokie, ).

---

efsw reports EOVERFLOW when a directory on a CIFS/samba mount is specified as a monitor point. The reason is that CIFS mounts require a larger return structure for the stat() function. The solution is to #define _FILE_OFFSET_BITS 64 in the two files that call stat() - FileInfo.cpp and platform/posix/FileSystemImpl.cpp.

Here's a link that should fill you in on this (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=604928).

FYI, you must use the generic monitor with CIFS mounts since they do not support the inotify API.

[SpartanJ]

Original comment by Martín Lucas Golini (Bitbucket: SpartanJ, GitHub: SpartanJ).

---

Thanks for reporting it.
I'll take a look to this in some days, since i'm not with time right now.

It would be interesting to detect if the directory is an cifs or NFS mount and fallback automatically to the generic watcher.

[SpartanJ]

Original comment by Martín Lucas Golini (Bitbucket: SpartanJ, GitHub: SpartanJ).

---

Applied a patch to avoid the EOVERFLOW error.

I still need to implement the fallback to the generic watcher if the directory watched is in a remote file system.

To implement this I’ll need to use statvfs, but the implementation differs between operating systems.

As reference on how to implement this we can look at the GNU stat from coreutils source code.

[SpartanJ]

Original comment by Martín Lucas Golini (Bitbucket: SpartanJ, GitHub: SpartanJ).

---

Fixed issue #33.