[yunqa.de] Re: TDISQLite3Database.UnRegisterStatement thread-safe?
- From: Delphi Inspiration <delphi@xxxxxxxx>
- To: yunqa@xxxxxxxxxxxxx,<yunqa@xxxxxxxxxxxxx>
- Date: Wed, 02 Sep 2009 19:10:18 +0200
At 18:01 02.09.2009, Nick Bradbury wrote:
>For performance reasons, I had decided I should change your code so that a
>critical section is used instead of a mutex (since there can be only one
>instance of my application). But looking at the SQLite C source, it appears
>that at least on Windows, a sqlite3_mutex is actually a critical section
>already, in which case no changes are necessary.
>
>Can you confirm that this is the case?
Yes, both Delphi's TThreadList and TCriticalSection as well as SQLite's Win32
mutex implementation use the same Windows API calls:
* InitializeCriticalSection, DeleteCriticalSection
* EnterCriticalSection, LeaveCriticalSection
Ralf
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