Locking multiple mutexes

Question

I\'m wondering if it\'s possible to lock multiple mutexes at the same time, like:

 Mutex1.Lock();
 {
     Mutex2.Lock();
     {
          // Code locked by m         


        

Answer 1

C++17 also provides scoped_lock for the specific purpose of locking multiple mutexes that prevents deadlock in a RAII style, similar to lock_guard.

#include

std::mutex mtx1, mtx2;
void foo()
{
    std::scoped_lock lck{mtx1, mtx2};
    // proceed
}