Hi, We are trying to introduce a thread that monitors the creation of the trigger_file. As and when the file is created, the process that monitors postgres server needs to be notified through the inotify API.
File system notification APIs aren't portable. If you want to implement this you'll need to support at least the Windows FSNotify stuff, notification features compatible with several different Linux versions and with the BSDs, with a fallback to polling for other platforms.
but it's probably best to add a configure test and fall back to polling if it isn't found.
This will mean adding a new internal API and then adding backend/port/ implementations for various platforms, as well as taking the current code and splitting it out into a port file that gets used if no other is chosen.