On 2024-02-10 graeme vetterlein via Exim-users <exim-users@lists.exim.org> wrote: > So, taking j...@wizmail.org URL: > https://exim.org/exim-html-current/doc/html/spec_html/ch-the_appendfile_transport.html
> I see the text: (I've added **highlights**) [...] > use_fcntl_lock Use: appendfile Type: boolean Default: see below > This option controls the use of the fcntl() function to lock a file for > exclusive use when a message is being appended. **It is set by default > unless > use_flock_lock is set.** > So this is set by default UNLESS ...one of the other locking options is > chosen: > If I do: > root@ybox:/var/lib/exim4# grep -i use_ /var/lib/exim4/config.autogenerated [...] > exim will use "apendfile" to append mail to /var/mail/<myuserid> > and it will use fcntl(2) (I'm assuming advisory locking?) ametzler@argenau:~$ /usr/sbin/exim4 -bP transport mail_spool | grep use_fcntl use_fcntl_lock > So I (may need to) just ensure maildrop(1) also uses fcntl(2) locking [...] > From maildrop: [...] > --with-locking-method=name - manually select a locking function call. name > is either "fcntl", "flock", or "lockf". Otherwise the configuration > script will pick one by itself. [...] Looking at https://salsa.debian.org/debian/maildrop/-/blob/master/debian/rules?ref_type=heads we find: --with-locking-method=fcntl cu Andreas -- `What a good friend you are to him, Dr. Maturin. His other friends are so grateful to you.' `I sew his ears on from time to time, sure' -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
