Thelock_guardclass is non-copyable. Template parameters Mutex-the type of the mutex to lock. The type must meet theBasicLockablerequirements Member types Member typeDefinition mutex_typeMutex Member functions (
std::lock_guard Member functions lock_guard::lock_guard lock_guard::~lock_guard~lock_guard(); (since C++11) Releases the ownership of the owned mutex. Effectively calls m.unlock() where m is the mutex passed to the lock_guard's constructor. ...
m, e2.m); std::lock_guard<std::mutex> lk1(e1.m, std::adopt_lock); std::lock_guard<std::mutex> lk2(e2.m, std::adopt_lock); // 等价代码(若需要 unique_locks ,例如对于条件变量) // std::unique_lock<std::mutex> lk1(e1.m, std::defer_lock); // std::unique_lock<std::...
lock()is usually not called directly:std::unique_lock,std::scoped_lock, andstd::lock_guardare used to manage exclusive locking. Shared mutexes do not support direct transition from shared to unique ownership mode: the shared lock has to be relinquished withunlock_shared()before exclusive ownershi...
(C++11 起)中断语句Several variationsC++ 函数参数和返回重载内置函数Lambda 表达式C++多线程多线程介绍线程的创建线程的销毁this_thread锁锁的基本操作更简单的锁 —— std::lock_guard<Mutex>unique_lock<Mutex>std::adopt_lockstd::try_to_lockstd::defer_lockstd::unique_lock<Mutex>::releasestd::call_once...
std::mutex m; std::lock_guard<std::mutex> lock(m); 额外参数:std::adopt_lock:只需解锁,无需上锁 // 手动上锁 m.lock(); std::lock_guard<mutex> lock(m, std::adopt_lock); unique_lock<Mutex> 构造上锁,析构解锁 std::mutex m; std::unique_lock<mutex> lock(m); std::adopt_lock...
#include <mutex> std::mutex mtx; void threadFunction() { std::lock_guard<std::mutex> lock(mtx); std::cout << "Thread safe output." << std::endl; } int main() { std::thread t1(threadFunction); std::thread t2(threadFunction); t1.join(); t2.join(); return 0; } 使用...
std::mutex m; std::lock_guard<std::mutex> lock(m); 额外参数:std::adopt_lock:只需解锁,无需上锁 // 手动上锁 m.lock(); std::lock_guard<mutex> lock(m, std::adopt_lock); unique_lock<Mutex> 构造上锁,析构解锁 std::mutex m; std::unique_lock<mutex> lock(m); std::adopt_lock...
Véase también lock_guard (C++11) Implementa un envoltorio de propiedad demutexestrictamente basado en un ámbito. (plantilla de clase) scoped_lock (C++17) EnvoltorioRAIIque evita bloqueo mutuo para múltiplesmutex. (plantilla de clase)...
std::mutex m; std::lock_guard<std::mutex> lock(m); 额外参数:std::adopt_lock:只需解锁,无需上锁 // 手动上锁 m.lock(); std::lock_guard<mutex> lock(m, std::adopt_lock); unique_lock<Mutex> 构造上锁,析构解锁 std::mutex m; std::unique_lock<mutex> lock(m); std::adopt_lock...