Re: EnterCriticalSection() is corrupting my heap

From:
Stephen Kellett <snail@objmedia.demon.co.uk>
Newsgroups:
microsoft.public.dotnet.languages.vc,microsoft.public.vc.debugger,microsoft.public.vc.language
Date:
Wed, 24 May 2006 18:10:52 +0100
Message-ID:
<sr4D9gJcOJdEFwUQ@objmedia.demon.co.uk>
In message <eA$6wSzfGHA.2172@TK2MSFTNGP04.phx.gbl>, Arsalan Ahmad
<arsal__@hotmail.com> writes

CAutoLock::CAutoLock(CRITICALSECTION *pCS)
{
   m_pCS = pCS; <= This assignement is not working correctly and after
assignment m_pCS points to some garbage memory location
   EnterCriticalSection(m_pCS);
}


Do you call InitializeCriticalSection() anywhere? You must call this
once before you try entering the critical section. Doesn't look to me
like you are using MFC's CCriticalSection wrapper, so I assume you are
using the raw Win32 object. Hence you need to initialize it.

VOID InitializeCriticalSection(
  LPCRITICAL_SECTION lpCriticalSection // critical section
);

Thread Validator from Software Verification would have identified this
error if you had run your code through it.

http://www.softwareverify.com/threadValidator/index.html

Stephen
--
Stephen Kellett
Object Media Limited http://www.objmedia.demon.co.uk/software.html
Computer Consultancy, Software Development
Windows C++, Java, Assembler, Performance Analysis, Troubleshooting

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