Monitor Filesystems with Inotify
I recently had the problem of writing an application that needed to get notifications when changes happened to a particular directory. Specifically, I was writing a Linux kernel mode driver (KMD), which would create entries in the /dev/ file system on connection of various devices, and I needed a user mode program that would detect these connections.
A collegue pointed me to Inotify, which solved this problem perfectly. In particular I used the C++ interface which can be downloaded along with an example code.
You can download the C++ interface for inotify. This compiles fine with g++ (e.g. g++ -c inotify-cxx.cpp)
And the example code for inotify (example.cpp). To use: compile this and link against the inotify-cxx object file.
The example code shows how you can easily get the type of event (e.g. create file, delete file etc.), and the filename of the file.
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