[reSIProcate] TimerQueue memory leak.

[palladin]

Hi developer's team,

I have written recently about memory leak in TimerQueue, and now I would 
like to provide use case.

If someone calls SipStack::postMS( SipStack.cxx:667 ), this causes 
Message::clone
SipStack::postMS(const ApplicationMessage& message, unsigned int ms,
                  TransactionUser* tu)
{
    assert(!mShuttingDown);
/////////////////////////////////////////////
  Message* toPost = message.clone();
///////////////////////////////////////////////////////////

    if (tu) toPost->setTransactionUser(tu);
    Lock lock(mAppTimerMutex);
    mAppTimers.add(ms,toPost);
    //.dcm. timer update rather than process cycle...optimize by 
checking if sooner
    //than current timeTillNextProcess?
    checkAsyncProcessHandler();
}

After that cloned toPost message is added into SipStack::mAppTimers.
toPost is a raw pointer.
TuSelectorTimerQueue::add member function just pushes raw pointer into 
TimerQueue::mTimers.
When we stop application TimerQueue pops it's content from mTimers in 
it's destructor. In case of raw pointers we get memory leak.

Sincerely,
Taras