"Remove" is implemented how?

Digard

I'm using gerbera as media center, and have tvheadend write the recorded media files into a rw drive.
When I Remove a file in the tvheadend UI, Digital Video Recorder, inotify throws an error. If I manually rm it on the server in that gerbera autoscan directory, gerbera doesn't.
Therefore I wonder, with which (system?) call tvheadend removes a file. inotify seems to think it is 'moved'; not re-moved.

DaveH

Generally, supplying actual details of what the program actually said is better than summarising it. i.e. paste the log/output.

Digard

DaveH
Did you get my question right? There are no problems with tvheadend. I was asking someone who is in the know of the underlying code of tvheadend, how an entry/a file is removed in the /hts/recordings directory.

The problem is with gerbera which throws an error when I Remove a recording. I would like to know the code, so that I can pass it to the gerbera people for them to eventually stop gerbera from throwing an error.

davep

The code for deleting a recording seems to be mostly in src/dvr/dvr_db.c

DeltaMikeCharlie

@Digard - IMHO @DaveH's request for some more information was perfectly reasonable. At first reading, it was unclear that the error was being generated by Gerbera, not TVH. It was only upon reading your response that gave that clue.

I found this thread from a long time ago.
https://tvheadend.org/d/4711-deleted-recordings-not-removed-from-filesystem
It suggests that under some circumstances, TVH first renames a file to be file.name.removing before actually deleting it later.

Enabling logging in TVH could give valuable clues regarding what is going on during the deletion process.

Are you 100% certain that the file is no longer in use when you try to delete it?
Does Gerbera stream via TVH, or does it read the recorded file directly from the recording directory?
Does Gerbera keep the file open/locked for quick access to metadata or something?

Digard

DeltaMikeCharlie
Thanks, most helpful as always. But I'm the wrong person to answer all these questions, since I know very little about the inner workings of gerbera.
What you write fits perfectly with the first answer given to me:

the message says you've moved the file

Well, I didn't. Though this seems to be the handling in tvheadend, and then gerbera one way or another sees a file that's missing.

I'll mark this one as "Solved", since at least it explains what could be observed.