29             m_lock = new mutex_t;
30             mutex_init(m_lock);
32         else m_lock = NULL;
43             m_lock = new mutex_t;
44             mutex_init(m_lock);
46         else m_lock = NULL;
55             m_lock = new mutex_t;
56             mutex_init(m_lock);
58         else m_lock = NULL;
60         if (rhs.m_lock) mutex_lock(rhs.m_lock);
64         if (rhs.m_lock) mutex_unlock(rhs.m_lock);
68         if (m_lock) mutex_lock(m_lock);  in ~SmartPtr()
70         if (m_lock)  in ~SmartPtr()
72             mutex_unlock(m_lock);  in ~SmartPtr()
73             mutex_destroy(m_lock);  in ~SmartPtr()
74             delete m_lock;  in ~SmartPtr()  local
109         if (m_lock) mutex_lock(m_lock);
114         if (m_lock) mutex_unlock(m_lock);
124         if (m_lock) mutex_lock(m_lock);
126         if (rhs.m_lock) mutex_lock(rhs.m_lock);
130         if (rhs.m_lock) mutex_unlock(rhs.m_lock);
131         if (m_lock) mutex_unlock(m_lock);
138     mutex_t  *m_lock;  variable