inotify

Can any linux API or tool watch for any change in any folder below e.g. /SharedRoot or do I have to setup e.g. inotify for each folder?

I have a folder with ~10 000 subfolders. Can any linux API or tool watch for any change in any folder below e.g. /SharedRoot or do I have to setup inotify for each folder? (i.e. I loose if I want to do this for 10k+ folders). I guess yes, since I've already seen examples of this inefficient method, for instance http://twistedmatrix.com/...

which inotify event signals the completion of a large file operation?

for large files or slow connections, copying files may take some time. using pyinotify, i have been watching for the IN_CREATE event code. but this seems to occur at the start of a file transfer. i need to know when a file is completely copied - it aint much use if it's only half there. when a file transfer is finished and completed, w...

linux inotify - determine users for the triggered events

I am trying to figure out how to determine the user which triggered a specific event when monitoring some files with inotify. Is that even possible? Does the inotify_event structure has something like this? ...

pyinotify: Handling IN_MODIFY triggers

I am trying to watch a directory, and is looking for file modifications. Thinking of using pyinotify. Problem is that while using IN_MODIFY event to check for a file change, it triggers quite a number of events if I am copying even a small file of say 12 MB to the directory over a network. I dont want to handle so many triggers. I want ...

how to make sure not to read a file before finishing the write to it

When trying to monitor a directory using inotify on Linux, as we know, we get notified as soon as the file gets created (before the other process finish writing to it) Is there an effective way to make sure that the file is not read before writing to it is complete by the other process? We could potentially add a delayed read; but as w...

How to make inotify wait when processing multiple files

I am working on a directory syncing program that uses jnotify to check for changes. The idea is whenever jnotify detects a change, a sync is performed. The problem is that when many files are copied to or modified in a directory, many syncs are performed instead of one large sync. Ideally if you were to copy 100 large files to director...

using stat to detect whether a file exists (slow?)

I'm using code like the following to check whether a file has been created before continuing, thing is the file is showing up in the file browser much before it is being detected by stat... is there a problem with doing this? //... do something struct stat buf; while(stat("myfile.txt", &buf)) sleep(1); //... do something else alt...

optimize a program with inotify

hello everybody i write a program by inotify to check file change in loop for grab any changes to that. but i think this can be done better. can anybody write this code better? #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <sys/types.h> #include <linux/inotify.h> #include <sys/select.h> #define EVENT_SIZE ( sizeof ...

Python - threaded pyinotify output. Better to write to file or to a string

Hi all, I have a pyinotify watcher running threaded, called as a separate class, at the moment it just prints its discoveries in a terminal window, if I wanted my script to make an action based on those changes am I better to: A) modify an array with each notification B) write to a file in /tmp and fetch it from my main script? c) gi...

Is there anything like inotify on Windows?

I like the inotify subsystem in Linux. However, I'm mainly a Windows user, so I was wondering if there's anything similar? ...

inotify program compile error

hi i want write a program in c by inotify to a system with kernel 2.6.9 but 2.6.9 dosnt support inotify, since i update kernel to version 2.6.18, when i want to compile my program error say:undefined reference toinotify_init'` what can i solve that? glibc version 2.3.4 gcc version 3.4.4 ...

Dropbox and pyinotify

I just got an iPad and I foolishly got the TexTouch application. Foolishly, because due to Apple regulation, TexTouch can't compile Tex. It syncs the .tex file to a computer using Dropbox. On the distant computer, it gets caught by another program that compiles the .tex file to PDF and sends it back. But (surprise!) that distant program ...

Why isn't Pyinotify able to watch a dir?

I would like Pyinotify to watch a templates directory, which has subfolders, but I'm getting this error: DIRECTORY /home/project/templates [Pyinotify ERROR] add_watch: cannot watch /home/project/templates WD=-1 [Pyinotify ERROR] add_watch: cannot watch /home/project/templates/dir1 WD=-1 [Pyinotify ERROR] add_watch: cannot watch /home/p...

In Linux, how do I run a shell script when a file or directory changes

I want to run a shell script when a specific file or directory changes. How can I easily do that? ...

Inotify - how to use it? - linux

hi, I want to use inotify mechanism in linux. I want my application to know when a file "aaa" has a change. can you please send me a sample that do it? thanks! ...