Hi everyone, can anyone send a simple container class implementation, which supports concurrent reads and exclusive write. I'm seeking for the usage of shared_lock for read/write mutex. My simple template class snippet is shown below, please reply how to fill the comments for locking. Thnx. // std includes #include <vector> // boost includes #include template <typename T> class SharedContainer { public: SharedContainer (void){} ~SharedContainer (void){} void push_back(const T& value); const T& at(int index) const; private: std::vector<T> m_buffer; boost::shared_mutex rw_mutex; //is this the correct class for rw mutex? }; template <typename T> void EntityUpdateBuffer<T>::push_back( const T& value ) { // how to acquire a write lock? m_buffer.push_back(value); } template <typename T> const T& EntityUpdateBuffer<T>::at( int index ) const { // how to acquire read lock? return m_buffer.at(index); } Selcuk Giray