Re: DllMain entrypoint - Is it serialized?

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.language
Date:
Sat, 19 Aug 2006 09:25:23 -0400
Message-ID:
<#UVodL5wGHA.5064@TK2MSFTNGP06.phx.gbl>
"Bruno van Dooren [MVP VC++]" <bruno_nos_pam_van_dooren@hotmail.com>
wrote in message news:%236Cw6b2wGHA.2120@TK2MSFTNGP03.phx.gbl

if you want to protect your shared memory, I suspect your critical
section objects are named.


There ain't no such thing as a named critical section. You are probably
thinking of a named mutex.

In that case, I hope your dll is not going to be used on Windows 2000,
because initializing named objects on win2000 can cause the loading
of a dll, which can cause a deadlock. This is documented in msdn.


Can you provide a relevant quote from MSDN? The documentation on DllMain
has this to say:

Because Kernel32.dll is guaranteed to be loaded in the process address
space when the entry-point function is called, calling functions in
Kernel32.dll does not result in the DLL being used before its
initialization code has been executed. Therefore, the entry-point
function can call functions in Kernel32.dll that do not load other DLLs.
For example, DllMain can create synchronization objects such as
*critical sections* and *mutexes*, and use TLS.

Emphasis mine.
--
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    Igor Tandetnik

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