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英文字典中文字典相关资料:


  • multithreading - What is a mutex? - Stack Overflow
    The chicken is the mutex People hoilding the mu chicken are competing threads The Moderator is the OS When people requests the chicken, they do a lock request When you call mutex lock(), your thread stalls in lock() and makes a lock request to the OS
  • std::mutex - cppreference. com
    The mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads mutex offers exclusive, non-recursive ownership semantics: A calling thread owns a mutex from the time that it successfully calls either lock or try_lock until it calls unlock
  • Standard library header lt;mutex gt; (C++11) - cppreference. com
    implements a strictly scope-based mutex ownership wrapper (class template) unique_lock (C++11)
  • std::mutex::mutex - cppreference. com
    The mutex is in unlocked state after the constructor completes 2) Copy constructor is deleted
  • std::recursive_mutex - cppreference. com
    The recursive_mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads recursive_mutex offers exclusive, recursive ownership semantics: A calling thread owns a recursive_mutex for a period of time that starts when it successfully calls either lock or try_lock
  • c++ - How do mutexes really work? - Stack Overflow
    A thread could acquire such a mutex by trying to swap a 1 value into the memory location If the value comes back as 0, then the thread would assume that it has the mutex and would continue Otherwise, if the value returned is 1, then the thread would know that some other thread currently has the mutex In that case it would wait until trying
  • Can someone Explain Mutex and how it is used? - Stack Overflow
    A mutex provides mutually exclusive access to a resource; in your case, a database There aren't multiple threads in your program, but you can have multiple instances of your program running, which is what your mutex is protecting against
  • std::shared_mutex - cppreference. com
    The shared_mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads In contrast to other mutex types which facilitate exclusive access, a shared_mutex has two levels of access: shared - several threads can share ownership of the same mutex
  • c++ - Mutex example tutorial? - Stack Overflow
    The related pthread_mutex_unlock() releases the mutex Think of the mutex as a queue; every thread that attempts to acquire the mutex will be placed on the end of the queue When a thread releases the mutex, the next thread in the queue comes off and is now running A critical section refers to a region of code where non-determinism is possible
  • c++ - Why use a mutex and not a semaphore? - Stack Overflow
    In general, mutex and semaphore target different use cases: A semaphore is for signalling, a mutex is for mutual exclusion Mutual exclusion means you want to make sure that multiple threads cannot execute certain critical sections of code at the same time std::mutex is the only synchronization facility in the standard library for this use





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