Driver loading issue when connecting to PostgreSQL after connecting to Oracle

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Quick Info:
-We made two new drivers: odbc(raw and unicode version) and oledb
-GUID domain/field-defined support for FB
-extended error infos of Firebird
-performance ups are still in queue
In future some more feature will arrive, so stay tuned and don't hassitate to help
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aehimself
Zeos Dev Team
Zeos Dev Team
Posts: 766
Joined: 18.11.2018, 17:37
Location: Hungary

Re: Driver loading issue when connecting to PostgreSQL after connecting to Oracle

Post by aehimself »

Fr0sT wrote: ↑23.11.2020, 15:35No matter how many times LoadLibrary is called, Windows only loads single instance of a lib. Different handles just point to the same object. Moreover, FreeLibrary cares about ref counter as well. So it's enough for driver object to call FreeLibrary on destroy.
I actually did not know about this behavior. I'll attempt to make this change and then test if it works as expected. Thanks for the hint!

P.s.: Where have you been?! Didn't see you here for ages now!
Delphi 12.1, Zeos 8 from latest GIT snapshot
Using:
- MySQL server 8.0.18; libmariadb.dll 3.3.8
- Oracle server 11.2.0, 12.1.0, 19.0.0; oci.dll 21.13
- MSSQL 2012, 2019; sybdb.dll FreeTDS_2435
- SQLite 3.45.2
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Fr0sT
Zeos Dev Team
Zeos Dev Team
Posts: 280
Joined: 08.05.2014, 12:08

Re: Driver loading issue when connecting to PostgreSQL after connecting to Oracle

Post by Fr0sT »

aehimself wrote: ↑23.11.2020, 16:06 P.s.: Where have you been?! Didn't see you here for ages now!
For some time I only been at Praxis and then got ill and isolated for 2w for wearing a Corona :/
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