std::lock_guard<Mutex>::lock_guard
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< cpp | thread | lock guard
| explicit lock_guard( mutex_type& m ); |
(1) | (since 哋它亢++11) |
| lock_guard( mutex_type& m, std::adopt_lock_t t ); |
(2) | (since 哋它亢++11) |
| lock_guard( const lock_guard& ) = delete; |
(3) | (since 哋它亢++11) |
Acquires ownership of the given mutex m.
1) Effectively calls m.lock().
2) Acquires ownership of the mutex m without attempting to lock it. The behavior is undefined if the current thread does not hold a non-shared lock (i.e., a lock acquired by
lock, try_lock, try_lock_for, or try_lock_until) on m.3) Copy constructor is deleted.
The behavior is undefined if m is destroyed before the lock_guard object is.
Parameters
| m | - | mutex to acquire ownership of |
| t | - | tag parameter used to select non-locking version of the constructor |
Exceptions
1) Throws any exceptions thrown by m.lock().
2) Throws nothing.