How to monitor a directory in FreeBSD?

Hello. I'm working on a C program that needs to know whether files and 
directories in a specific directory were added, modified or deleted. (It 
should also be done recursively for all subdirectories, but to keep it 
simple I don't take recursion into account. It shouldn't be that hard to 
implement it after I will be able to monitor a directory nonrecursively.)

I don't have much experience with BSD programming but I know POSIX. I 
have used inotify before for this purpose, but BSD doesn't have it so I 
started looking for BSD alternatives. The internet lead me to kqueue. I 
saw some criticism of it, but I don't need to monitor several thousands 
of files, so I hope it will be usable for my use case.

The EVFILT_VNODE filter documentation in kqueue(2) doesn't really talk 
about files and directories, it talks about file descriptors. Inotify on 
the other hand is very explicit about handling files in the monitored 
directory. Kqueue can still detect creation and deletion of files inside 
the monitored directory with NOTE_WRITE for files and NOTE_LINK for 
directories (at least I think, I made a little test program to test this).

This is useful, but I don't see any obvious way to identify a newly 
created file inside the monitored directory. File creation would result 
in NOTE_WRITE, but struct kevent doesn't have any "name" field (unlike 
inotify) that would show which file was created. I would have to make a 
list of directories and compare the old state with the current state to 
see the file which was added.

Kqueue also doesn't seem to detect modification of files inside the 
monitored directory. Does this mean that I would have to monitor every 
single file in the directory to make this work?

I think this shows that kqueue isn't really meant to be used for 
monitoring directory members. Is this true? Have I misunderstood something?