Linux之死锁的代码体验

bool CMessageCenter::getReplyMsg(Response & msg)
{
bool bResult = false;
pthread_mutex_lock(&m_reply_lock);
if (m_replyList.empty())
{
pthread_cond_wait(&m_reply_cond, &m_reply_lock);

<span style="white-space:pre">	</span><strong><span style="color:#ff0000;">return false;</span></strong>
}
if ( !m_replyList.empty() )
{
bResult = true;
msg = m_replyList.front();
m_replyList.pop_front();
}
pthread_mutex_unlock(&m_reply_lock);
return bResult;
}