std::lock_guard

From Cppreference

Defined in header `<mutex>`

template<typename Mutex> class lock_guard;		(C++11 feature)

The class lock_guard implements a strictly scope-based mutex ownership wrapper. The class is non-copyable. The supplied Mutex type shall implement the Lockable concept.

[edit] Member types


Member type	Definition

`mutex_type`	Mutex

[edit] Member functions

(constructor)

constructs new lock_guard object and locks the given mutex
(public member function)

(destructor)

destructs the lock_guard object, unlocks the underlying mutex
(public member function)

[edit] Example

std::mutex m;
 
void do_something()
{
    std::lock_guard<std::mutex> lock(m);
    // the remaining function is thread-safe now
}