Sending kevent notifications to notify network events to applications

[Philippe Liard]

Hi,

I'm working on a network file system using OSXFUSE and I see that Finder doesn't refresh its content when my file system invalidates inodes after some operations affecting those inodes happened remotely. I believe Finder uses kevent() to watch the file system and that notifications get properly delivered for file system operations that happen locally (e.g. 'touch' in a terminal). I was wondering however if there was any way to make my file system generate such notifications (e.g. NOTE_DELETE, NOTE_ATTRIB...) when processing network events?

I found on this forum mentions of the following Objective-C API but it now seems to be deprecated and I couldn't find any equivalent unfortunately (but would love to be wrong):

[[NSWorkspace sharedWorkspace] noteFileSystemChanged:changedFilePath];

Also I would like ideally to solve this problem globally, i.e. not only for Finder although many/most applications on OSX do rely on Finder.

Thank you,

Philippe.

[Shiping Tan]

now, is it slove? 

在 2015年9月5日星期六 UTC+8上午5:28:08，Philippe Liard写道：

[s...@nan.co.uk]

On Friday, September 4, 2015 at 10:28:08 PM UTC+1, Philippe Liard wrote:

I found on this forum mentions of the following Objective-C API but it now seems to be deprecated and I couldn't find any equivalent unfortunately (but would love to be wrong):

[[NSWorkspace sharedWorkspace] noteFileSystemChanged:changedFilePath];

This isn't deprecated even in the 10.12 SDK; I think you're confusing it with FNNotifyByPath, which has been deprecated. Also in another thread in this group Ben wrote:

In case your user space file system daemon is aware of external changes you can call function fuse_purge_np to notify the kernel of those external changes. In this case there should be no need to disable any kernel side cache.