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std::defer_lock_t, std::try_to_lock_t, std::adopt_lock_t

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struct defer_lock_t { };
(since C++11)
struct try_to_lock_t { };
(since C++11)
struct adopt_lock_t { };
(since C++11)

std::defer_lock_t, std::try_to_lock_t and std::adopt_lock_t are empty struct tag types used to specify locking strategy.

Type Effect(s)
defer_lock_t do not acquire ownership of the mutex
try_to_t try to acquire ownership of the mutex without blocking
adopt_lock_t assume the calling thread already has ownership of the mutex

[edit] Example

[edit] See also

tag constants used to specify locking strategy
(constant) [edit]