<div>
Also, my concern is here:<br />
<br />
<br />
int TaskRunner::GetNumberOfTas<wbr />ksInQueue(<wbr />)<br />
{<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EnterCriticalSection(&amp;m_Qu<wbr />eueCritica<wbr />lSection);<wbr /><br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int nSize = m_TaskQueue.size();<br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;LeaveCriticalSection(&amp;m_Qu<wbr />eueCritica<wbr />lSection);<wbr /><br />
<br />
&nbsp; &nbsp; &nbsp;// RIGHT HERE - SIZE MIGHT BE INCORRECT - ANOTHER THREAD MAY HAVE COME IN AND CHANGED SIZE<br />
// &nbsp;JUST BEFORE I GOT TO RETURN IT. &nbsp;HOW DO I FIX THIS?<br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return nSize;<br />
}
</div>


Also, my concern is here:


int TaskRunner::GetNumberOfTasksInQueue()
{
      EnterCriticalSection(&m_QueueCriticalSection);

      int nSize = m_TaskQueue.size();

      LeaveCriticalSection(&m_QueueCriticalSection);

     // RIGHT HERE - SIZE MIGHT BE INCORRECT - ANOTHER THREAD MAY HAVE COME IN AND CHANGED SIZE
//  JUST BEFORE I GOT TO RETURN IT.  HOW DO I FIX THIS?

      return nSize;
}

<div>
ignore that last concern - I realized that size is a stack variable - not a member variable like I was thinking....
</div>


ignore that last concern - I realized that size is a stack variable - not a member variable like I was thinking....

<div>
<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
I want to have a bunch of threads that share a vector. &nbsp;If I keep a critical section around the vector at all places where it is accessed, am I ok?<br />
<br />
i.e., I place a critical section around the size() call where the parent class that owns the vector is a GetSize<br />
<br />
I place a critical section around code that adds items to the vector in the AddItem function<br />
<br />
Is there anything else to watch out for?<br />
<br />
Thanks,<br />
Mike
</div>
</div>


Hi Experts,

I want to have a bunch of threads that share a vector.  If I keep a critical section around the vector at all places where it is accessed, am I ok?

i.e., I place a critical section around the size() call where the parent class that owns the vector is a GetSize

I place a critical section around code that adds items to the vector in the AddItem function

Is there anything else to watch out for?

Thanks,
Mike

vector and threads

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