Constant inotify_sys::IN_OPEN

pub const IN_OPEN: u32 = 0x00000020;

Event: File or directory was opened

This constant can be passed to inotify_add_watch, to register interest in this type of event, or it can be used to check (via inotify_event’s mask field) whether an event is of this type.

When monitoring a directory, this event can be triggered for both for the directory itself and the files within.

See man page for additional details.