针对你遇到的错误 'shared_mutex' in namespace 'std' does not name a type,这通常意味着编译器无法识别 std::shared_mutex。以下是一些可能的解决步骤和原因分析: 确认编译器支持C++17标准: std::shared_mutex 是在C++17 标准中引入的。如果你的编译器不支持 C++17 或者没有正确设置以使用 C++17 标准,那么...
在ubuntu22.04+ROS noetic中编译程序,提示: error: ‘shared_mutex’ in namespace ‘std’ does not name a type 解决方法 修改文件 sudo gedit /usr/include/log4cxx/boost-std-configuration.h 将以下代码 #define STD_SHARED_MUTEX_FOUND 1 #define Boost_SHARED_MUTEX_FOUND 0 修改为 #define STD_SHARED...
namespacestd{classshared_mutex;classshared_timed_mutex;template<classMutex>classshared_lock;template<classMutex>voidswap(shared_lock<Mutex>&x,shared_lock<Mutex>&y)noexcept;} Remarks An instance of the classshared_mutexis ashared mutex type, a type that controls the shared ownership of a mutex ...
A shared timed mutex type supports the additional methods try_lock_shared_for and try_lock_shared_until:The try_lock_shared_for method attempts to obtain shared ownership of the mutex until the duration specified by the parameter has passed. If the duration is not positive, the method is ...
namespacestd{classshared_mutex;classshared_timed_mutex;template<classMutex>classshared_lock;template<classMutex>voidswap(shared_lock<Mutex>&x,shared_lock<Mutex>&y)noexcept;} Remarks An instance of the classshared_mutexis ashared mutex type, a type that controls the shared ownership of a mutex ...
The rationale would be that this shared => exclusive upgrade behavior is actually a consequence of a performance optimization, and does not affectintendeduse ofshared_mutex. Users who want a bunch of threads to all gather before doing other work should be using other Standard mechanisms likebarrie...
namespacestd{classshared_mutex;classshared_timed_mutex;template<classMutex>classshared_lock;template<classMutex>voidswap(shared_lock<Mutex>&x,shared_lock<Mutex>&y)noexcept;} Remarks An instance of the classshared_mutexis ashared mutex type, a type that controls the shared ownership of a mutex ...
namespacestd{classshared_mutex;classshared_timed_mutex;template<classMutex>classshared_lock;template<classMutex>voidswap(shared_lock<Mutex>&x,shared_lock<Mutex>&y)noexcept;} Remarks An instance of the classshared_mutexis ashared mutex type, a type that controls the shared ownership of a mutex ...
native_handle_type(optional*)implementation-defined Member functions (constructor) constructs the mutex (public member function) (destructor) destroys the mutex (public member function) operator= [deleted] not copy-assignable (public member function) ...
Type: Pointer Length: Fullword (doubleword) The name of a fullword (doubleword) pointer field that contains the address of the ECB that the caller will wait on for the specified mutex or condition variable. For the SMC_SetupToWait function for a mutex object, this param...