[boost] [thread] best practice to lock multiple mutexes

Hi, what's the best practice in following scenario: m threads and n resources (each resource is protected by a mutex) thread x needs read/write access to resources (...i,j,k,..) threads y,z,... do access another subset of resources at the same time inorder to protected deadlocks I would do following in the code of the different threads (code executed by the threads are different): ... try_lock: // label unique_lock< mutex > lk1( mtx1, try_to_lock_t); unique_lock< mutex > lk4( mtx2, try_to_lock_t); unique_lock< mutex > lk7( mtx3, try_to_lock_t); if ( ! ( lk1 && lk2 && lk3) ) goto try_lock; // all mutexes are locked // now modify safely resource 1,2,3 ... Maybe you have a better pattern do solve this problem? best regards, Oliver