lock locks the associated mutex (public member function) try_lock tries to lock the associated mutex (public member function) try_lock_for tries to lock the associated mutex, for the specified duration (public
若另一线程已经持有该互斥体的独占所有权,则对 lock_shared 的调用将阻塞执行,直到能取得共享所有权。 如果lock_shared 被已经以任何模式(独占或共享)占有 mutex 的线程调用,则行为未定义。 若多于实现定义最大数量的共享所有者已经以共享模式锁定此互斥体,则 lock_shared 阻塞执行,直至共享所有者的数量减少。
{std::shared_locklock(file_mutex,std::defer_lock);// Do not lock it first.lock.lock();// Lock it here.content=file;}std::lock_guardlock(output_mutex);std::cout<<"Contents read by reader #"<<id<<": "<<content<<'\n';}voidwrite_content(){{std::lock_guardfile_lock(file_...
release disassociates the associated mutex without unlocking (i.e., releasing ownership of) it (public member function of std::unique_lock<Mutex>) Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/shared_lock/release&oldid=161233" Category...
std::shared_lock<Mutex>::shared_lockshared_lock() noexcept; (1) (since C++14) shared_lock( shared_lock&& other ) noexcept; (2) (since C++14) explicit shared_lock( mutex_type& m ); (3) (since C++14) shared_lock( mutex_type& m, std::defer_lock_t t ) noexcept; (4) (...
std::swap(std::shared_lock) specialization of std::swap for shared_lock (function template) 代码语言:txt 复制 © cppreference.com 在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。 http://en.cppreference.com/w/cpp/线程/Shared[医]锁 ...
文件名称是test_rw_lock.cpp 在C++17下面编译的代码。 编译命令: g++ test_rw_lock.cpp--std=c++17-o wr.bin -l pthread 这里我们创建了10个写的线程,来执行fun1里面的方法,给iCount做自增操作。 我们创建了10个读的线程,来执行fun2里面读取的方法,输出iCount里面的值。
try_lock tries to lock the mutex, returns if the mutex is not available (public member function) unlock unlocks the mutex (public member function) c MTX文件[医]锁 代码语言:txt 复制 © cppreference.com 在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
shared_lock( mutex_type& m, const std::chrono::time_point<Clock,Duration>& timeout_time ); (8) (C++14 起) 构造shared_lock ,可选地锁定提供的互斥。1) 构造 shared_lock ,不关联互斥。 2) 移动构造函数。以 other 的内容初始化 shared_lock 。令 other 不关联到互斥。 3-8) 构造 shared_loc...
void reset() { std::unique_lock lock(mutex_); value_ = 0; } private: mutable std::shared_mutex mutex_; unsigned int value_ = 0; }; int main( int argc, char **argv ) { ThreadSafeCounter counter; auto increment_and_print = [&counter]() { for ( int i = 0; i < 3; ++ i...