注:实际上shared_timed_mutex的原来的类名为shared_mutex,由于其带有定时功能,但是名字中未加入计时,违背了 timed_mutex 和recursive_timed_mutex 设定的命名先例,于是在 2014 年的 Issaquah ISO C++ 会议上,shared_mutex 根据N3891 提案被重命名为 shared_timed_mutex,并为不定时shared_mutex留出空间,而且不带定时...
尽管信号量已经可以实现互斥的功能，但是“正宗”的mutex在Linux内核中还是真实地存在着。尤其是在Linux内...
c++多线程,mutex/recursive_mutex锁 mutex void lock() 使用锁有三种情况, 1、任何线程都没有使用mutex, 则调用的线程使用mutex 2、有其他线程使用mutex,当前调用的线程会阻塞,直到其他使用锁的线程锁释放 3、如果mutex被同一线程调用,会产生死锁; 如果发生死锁, 会出现无定义行为,在某些特定库实现中,死锁会导致...
Shared recursive mutex What is a shared recursive mutex? The C++ 17 standard defines a shared_mutex, which is another term for reader/writer lock and a recursive mutex which is a mutex which you can lock multiple times from the same thread. There is no shared_recursive_mutex though. My bu...
简介:C++标准库中的锁lock_guard、unique_lock、shared_lock、scoped_lock、recursive_mutex C++标准库中的锁 std::mutex.lock是我们在C++中比较常见的锁,我们使用std::mutex.lock方法时,同时需要考虑何时使用std:mutex.unlock方法去解锁。如果在复杂的多线程情况下,加锁、解锁的时机很难把握,也不好实现。
Classshared_timed_muteximplements a non-recursive mutex with shared ownership semantics that meets the requirements of a timed mutex type. C++ classshared_timed_mutex{public: shared_timed_mutex(); ~shared_timed_mutex(); shared_timed_mutex(constshared_timed_mutex&) =delete; shared_timed_mutex&ope...
也是一种可以被上锁的对象,但是和std::mutex不同的是,std::recursive_mutex允许同一个线程对互斥量多次上锁(即递归上锁),来获取对互斥量对象的多层所有权,std::recursive_mutex释放互斥量时需要调用与该锁层次深度相同次数的unlock(),可理解为lock()次数 和 unlock()次数相同,除此之外,std::recursive_mutex的...
Classshared_timed_muteximplements a non-recursive mutex with shared ownership semantics that meets the requirements of a timed mutex type. C++ classshared_timed_mutex{public: shared_timed_mutex(); ~shared_timed_mutex(); shared_timed_mutex(constshared_timed_mutex&) =delete; shared_timed_mutex&ope...
recursive_timed_mutex (C++11) shared_timed_mutex (C++14) Generic lock management lock (C++11) lock_guard (C++11) scoped_lock (C++17) unique_lock (C++11) shared_lock (C++14) once_flag (C++11) call_once (C++11) try_lock (C++11) ...
New World Project AG company sort double numbers(stored in files 1GB) with memory restriction recursive_shared_mutex - own realization not use C14 wildcards search dbcache with transaction(arangodb, cassandra, sqlite) - jupiterfirepower/CPLUSPLUSTESTTASK