类lock_guard是互斥体包装器,为在作用域块期间占有互斥体提供便利的RAII 风格机制。 当创建lock_guard对象时,它尝试接收给定互斥体的所有权。当控制离开创建lock_guard对象的作用域时,销毁lock_guard并释放互斥体。 lock_guard类不可复制。 模板形参 Mutex-要锁定的互斥体。类型必须满足可基本锁定(BasicLockable)要求...
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std::lock_guard http://www.cplusplus.com/reference/mutex/lock_guard/ 用于托管一个mutex 变量,负责对齐加锁解锁。 A lock guard is an object that manages a mutex object by keeping it always locked. On constr... 查看原文 C++11std::lock_grard管理mutex临界区(C++多线程相关) ...
Thelock_guardclass is non-copyable. 参考: https://en.cppreference.com/w/cpp/thread/lock_guarden.cppreference.com/w/cpp/thread/lock_guard maim.cpp #include<thread>#include<mutex>#include<iostream>intg_i=0;std::mutexg_i_mutex;// protects g_ivoidsafe_increment(){conststd::lock_guar...
注意:在编译的时候可能会报 underfined reference to ‘pthread_create’错误,这个在编译选项中加 -g -lpthread 既可。原因 具体编译命令: 1 g++-std=c++11lock.cpp-g-lpthread case 1:mutex #include <iostream>#include<thread>#include<mutex>usingnamespacestd;volatileintcounter(0); ...
平时看代码时,也会使用到std::lock_guard,但是std::unique_lock用的比较少。在看并发编程,这里总结一下。方便后续使用。 std::unique_lock也可以提供自动加锁、解锁功能,比std::lock_guard更加灵活。 std::lock_guard std::lock_guard是RAII模板类的简单实现,功能简单。
关于您提到的“binding reference of type 'std::lock_guard<std::mutex>::mutex_type&'”错误,这通常意味着在代码中尝试将一个std::lock_guard<std::mutex>::mutex_type&(即std::mutex&)类型的引用绑定到了不合适的对象上。以下是对这个问题的详细分析和可能的解决方案: 1. 理解问题背景...
// reference: http://en.cppreference.com/w/cpp/thread/condition_variable std::mutex m; std::condition_variable cv6; std::string data; bool ready6 = false; bool processed = false; static void worker_thread() { // Wait until main() sends data ...
问什么是更好的std::lock_guard<std::mutex>锁( std::mutex mutex_var)；还是std：：mutex mutex_...
/** * Get a reference to the std::unique_lock. * * This is provided so that callers can use Synchronized<T, std::mutex> * with a std::condition_variable. * * While this API could be used to bypass the normal Synchronized APIs and * manually interact with the underlying unique_lock...