该函数是C++17中引入的用来对单把锁或者多把锁进行加锁的更加简便的RAII的模版类,并且对于多把锁进行加锁的时候,该模板类还可以通过std::lock这种方式来避免死锁 我们先看一下cpp reference中的说明,相关截图如下所示 上图解释中我们可以看出,其相当于std::lock+std::lock_guard+std::adopt_lock这三个共同使用...
std::scoped_lock 提供此函数的 RAII 包装,通常它比裸调用 std::lock 更好。 示例下列示例用 std::lock 锁定互斥体对而不死锁。 运行此代码 #include <chrono> #include <functional> #include <iostream> #include <mutex> #include <string> #include <thread> #include <vector> struct Employee { Employ...
类unique_lock是一种通用互斥包装器,允许延迟锁定、有时限的锁定尝试、递归锁定、所有权转移和与条件变量一同使用。 类unique_lock可移动,但不可复制——它满足可移动构造(MoveConstructible)和可移动赋值(MoveAssignable)但不满足可复制构造(CopyConstructible)或可复制赋值(CopyAssignable)。
From cppreference.com Concurrency support library voidlock(); (since C++14) Locks the mutex. If another thread has already locked the mutex, a call tolockwill block execution until the lock is acquired. Iflockis called by a thread that already owns themutexin any mode (shared or exclusive...
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/lock_guard/%7Elock_guard&oldid=132387" Navigation Support us Recent changes FAQ Offline versionToolbox What links here Related changes Upload file Special pages Printable version Permanent link Page information...
std::scoped_lock 提供此函数的 RAII 包装,通常它比裸调用 std::lock 更好。 示例 下列示例用 std::lock 锁定互斥对,而不死锁。运行此代码 #include <mutex> #include <thread> #include <iostream> #include <vector> #include <functional> #include <chrono> #include <string> struct Employee { Employe...
参考: https://en.cppreference.com/w/cpp/thread/locken.cppreference.com/w/cpp/thread/lock main.cpp #include<mutex>#include<thread>#include<iostream>#include<vector>#include<functional>#include<chrono>#include<string>structEmployee{Employee(std::stringid):id(id){}std::stringid;std::vector...
在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。 http://en.cppreference.com/w/cpp/线程/UNIQUE[医]锁/锁 本文档系腾讯云开发者社区成员共同维护,如有问题请联系cloudcommunity@tencent.com 最后更新于:2017-12-18 分享 扫描二维码 扫码关注腾讯云开发者 领取腾讯云代金券...
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); ...
join(); r2.join(); } Possible output: #2 read i as 10... #1 read i as 10... #2 woke up... #1 woke up...© cppreference.comLicensed under the Creative Commons Attribution-ShareAlike Unported License v3.0. https://en.cppreference.com/w/cpp/thread/shared_lock/shared_lock ...