CObList

[Frank Natoli]

Are CObList and CPtrList protected against concurrent access by
multiple threads? I presume the answer is "no". If one thread is in the
process of changing the list, e.g., Add Head, RemoveTail, etc., and
some other thread barges in to review the list, there is a potential
for the latter thread to sustain a memory violation, correct? A mutex
must be created for all threads to use when accessing the object,
correct?

[mlimber]

Frank Natoli wrote:

Are CObList and CPtrList protected against concurrent access by
multiple threads? I presume the answer is "no". If one thread is in the
process of changing the list, e.g., Add Head, RemoveTail, etc., and
some other thread barges in to review the list, there is a potential
for the latter thread to sustain a memory violation, correct? A mutex
must be created for all threads to use when accessing the object,
correct?

CObList and CPtrList are not standard C++, and standard C++ doesn't
have built-in threading support (though it's a good possibility in
C++09). Hence, you should ask your question in a newsgroup related to
your platform (which, BTW, you didn't even mention, which means we
would have to speculate on who the vendor of such creatures is before
we could even attempt to give an accurate answer). See this FAQ for
what is on-topic here and for some suggestions of where you can post
your question:

http://www.parashift.com/c++-faq-lit...t.html#faq-5.9

Cheers! --M

[Mike Wahler]

"Frank Natoli" <Fr**********@Earthlink.net> wrote in message
news:11**********************@e56g2000cwe.googlegr oups.com...

Are CObList and CPtrList protected against concurrent access by
multiple threads? I presume the answer is "no". If one thread is in the
process of changing the list, e.g., Add Head, RemoveTail, etc., and
some other thread barges in to review the list, there is a potential
for the latter thread to sustain a memory violation, correct? A mutex
must be created for all threads to use when accessing the object,
correct?

None of 'CObList', 'CPtrList', 'concurrent access', 'threads', or
'mutex' are defined by the standard C++ language, so there's no
answer in the context of this newsgroup. Try a group where those
things are topical. A guess: 'CObList' and CPtrList' look to me
like Microsoft's MFC types. If so, an MFC group is where to ask.
(You can find a list of Microsoft-specific newsgroups at
www.msdn.microsoft.com

Purpose of comp.lang.c++:
http://www.slack.net/~shiva/welcome.txt
-Mike