In C++ this is a classical block enclosement. I have used for few years in
Delphi with interfaces. I was badly surprised that there are some issues when
you try to use it in Lazarus, but with some code changes I think I have worked
it around, and so far it seems to work in Lazarus too, just with some
limitations ( Destructors as example ).
In Delphi however there is a different problem. In C++ the order of destruction
will be exactly opposite of the order of creation. There is no such guarantee
in Delphi, so having 2 locks declared leads to problems due to wrong order of
destruction. This is yet another example where C++ simply shines ;-) .
With best regards,
Boian Mitov
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Mitov Software
http://www.mitov.com
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----- Original Message -----
From: Henri Gourvest
To: FPC developers' list
Sent: Thursday, July 31, 2008 6:29 AM
Subject: Re: [fpc-devel] Re: Multi threading support
sorry, it is also my idea :D
I recently written a new light db interface for firebird, to simplify queries
and auto commit transactions (context)
with pool.GetConnection.newContext do <- start transaction
Execute(newCommand('DELETE FROM COUNTRY WHERE COUNTRY = ?'), [1]);
<- commit/rollback transaction
I also remember MS DirectShow SDK (to write codecs) use an object allocated
in the stack to syncronyse critical sections, it look like our trick with the
interface
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