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英文字典中文字典相关资料:


  • 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
  • multithreading - What is a mutex? - Stack Overflow
    A mutex is a programming concept that is frequently used to solve multi-threading problems My question to the community: What is a mutex and how do you use it?
  • Standard library header lt;mutex gt; (C++11) - cppreference. com
    Class std::mutex namespace std { class mutex { public: constexpr mutex () noexcept; ~mutex (); mutex (const mutex ) = delete; mutex operator =(const mutex ) = delete; void lock (); bool try_lock (); void unlock (); using native_handle_type = * implementation-defined * ; native_handle_type native_handle (); }; }
  • Can someone Explain Mutex and how it is used? - Stack Overflow
    A mutex provides mut ually ex clusive 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
  • What is the difference between lock, mutex and semaphore?
    I've heard these words related to concurrent programming, but what's the difference between lock, mutex and semaphore?
  • std::mutex::mutex - cppreference. com
    < cpp ‎ | thread ‎ | mutex C++ Compiler support Freestanding and hosted Language Standard library Standard library headers Named requirements Feature test macros (C++20) Language support library Concepts library (C++20) Diagnostics library Memory management library Metaprogramming library (C++11) General utilities library Containers library
  • 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
    However, how is this implemented? To lock itself, the mutex has to set a bit somewhere that says that it is locked But what if the second mutex is reading at the same time the first is writing Worse, what if they both lock the mutex at the same time? The mutex would succumb to the same problem it is meant to prevent How do mutexes really work?
  • std::mutex::lock - cppreference. com
    Locks the mutex If another thread has already locked the mutex, a call to lock will block execution until the lock is acquired If lock is called by a thread that already owns the mutex, the behavior is undefined: for example, the program may deadlock
  • multithreading - How to use mutexes in C - Stack Overflow
    Mutexes alone aren't suitable for performing the kind of closely-interlocked execution that you want - their normal use is for protecting access to a shared data structure This is because they're designed for saying "Thing A shouldn't happen at the same time as Thing B", but they don't say anything about whether Thing A or Thing B happens first or second You could use mutexes and condition





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