Re: [Firebird-devel] DPB and collation
Em 05/08/2022 06:40, Jiří Činčura escreveu: Hi *, What's the DPB tag for collation when creating database. For charset there's isc_dpb_set_db_charset. There isn't one. CREATE DATABASE immediately executes a ALTER CHARACTER SET SET DEFAULT COLLATION. Adriano Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] op_que_events and database shutdown
05.08.2022 12:40, Dimitry Sibiryakov wrote: Vlad Khorsun wrote 05.08.2022 11:17: It could be compared with last known counters before re-connect, if necessary. Bad idea. If database was reloaded counters are reset. If there was just connection (not database) shutdown, counters will not be reset. In any case - this is up to app dev to decide how to handle re-connection in own code. The main point still the same - no events will be missed. Another way could be to call callback with NULL events and 0 length but I'm not sure existing apps is ready to handle such signal. They are ready because it is normal reaction to isc_cancel_events. Good. Probably it is the way to go. While I'm not sure we really need such changes. Regards, Vlad Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] op_que_events and database shutdown
Vlad Khorsun wrote 05.08.2022 11:17: It could be compared with last known counters before re-connect, if necessary. Bad idea. If database was reloaded counters are reset. Another way could be to call callback with NULL events and 0 length but I'm not sure existing apps is ready to handle such signal. They are ready because it is normal reaction to isc_cancel_events. -- WBR, SD. Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
[Firebird-devel] DPB and collation
Hi *, What's the DPB tag for collation when creating database. For charset there's isc_dpb_set_db_charset. -- Mgr. Jiří Činčura https://www.tabsoverspaces.com/ Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] op_que_events and database shutdown
03.08.2022 16:35, Jiří Činčura wrote: Hi *, op_que_events and waiting for events, database goes into shutdown. What to do next? Good question The socket is kept open, no luck there. And the "database shutdown" error is returned only after some next operation. Yes. This is done to allow application to get isc_shutdown error instead of isc_network_error. But as I'm waiting for the events, I kind of don't have next operation. Seems so. Unless the developer does something (which might happen way later and events might be missed). What events might be missing ? Connection is shutdown and can't be resurrected. New connection will queue new events and can't miss one. Remember, first "queue events" in connection immediately receives most current counters. It could be compared with last known counters before re-connect, if necessary. Is this something we have solution for. Or is this developer's responsibility? Dev responsibility is to react on isc_shutdown: by disconnecting - this will stop events listener for given connection. In theory, engine could call events callback with isc_shutdown in status-vector to signal about shutdown. But there is no status-vector in callback routine, unfortunately :( Another way could be to call callback with NULL events and 0 length but I'm not sure existing apps is ready to handle such signal. Regards, Vlad Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
