The change of "Extern C" suggested by Timo actually solved the situation
Now, further question :
I put a "i_warning" at each of my functions, and I see in the log :
Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Warning: fts_backend_xapian_alloc Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Warning: fts_backend_xapian_init Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Warning: fts_xapian init (3,25) Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Warning: fts_backend_xapian_get_last_uid Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Error: Mailbox XXX: Status lookup failed: Internal error occurred. Refer to server log for more information. [2019-01-12 10:33:27] Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Warning: fts_backend_xapian_deinit Jan 12 10:33:27 indexer-worker(jom@grosjo.net)<30970>ms9zEnfCOVyHegAA0thIag:8IhwIHfCOVz6eAAA0thIag: Warning: fts_backend_xapian_unset_box Jan 12 10:33:27 lda(jom@grosjo.net)<31367><ms9zEnfCOVyHegAA0thIag>: Warning: fts_backend_xapian_deinit
The error comes from the fact taht the "get_last_uid" is called without selecting a mailbox first, and therefore there is of course no uid.
How come ?
On 2019-01-12 10:50, Aki Tuomi wrote:
Did you remember to load fts first?
mail_plugins =$mail_plugins fts fts_xapian
Aki
On 12 January 2019 at 10:37 Joan Moreau via dovecot < dovecot@dovecot.org> wrote:
STATUS
Alpha code is written and compiling now. (attached)
I would like to start testing. However, there is an error when starting dovecot (git) :
Error: Couldn't load required plugin /usr/lib/dovecot/lib21_fts_xapian_plugin.so: dlopen() failed: /usr/lib/dovecot/lib21_fts_xapian_plugin.so: undefined symbol: _Z30fts_backend_default_can_lookupP11fts_backendPK15mail_search_arg
ldd shows that fts lib is properly linked: # ldd /usr/lib/dovecot/lib21_fts_xapian_plugin.so (...) lib20_fts_plugin.so => /usr/lib/dovecot/lib20_fts_plugin.so (0x00007f25f75e0000) (...) libxapian.so.30 => /usr/lib/libxapian.so.30 (0x00007fe3a51e2000)
Your help very welcome
PENDING QUESTIONS
1 - WHat does represent "subargs" in mail_search_args
2 - for rescan : who is responsible for passing again the new email ? Is
the Dovecot core sending again all the emails to index ? or the fts shall somehow access the mailbox and read all emails ? Wouldn't just be saying "delete all index and get_last_uid is now 0" the easy way ? or the fts must process all emails (and block the current thread as a mailbx maybe quite large)
3 - for get_last_uid : this uncertainity is very unclear. "If there is a
gap, then indexer first indexes all the missing" -> this mean at a certain point, indexer maybe rebuilding a previous email, so *last* uid is something different than max. And how indexer does know whther there is a gap wihtout callong the fts backend (whch it does not as there are no function for that) ?
Thank you
Aki Tuomi