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我想啓動執行一些計算的函數的多個實例。該函數採用一個類對象,因爲該類包含shared_mutex
我通過引用傳遞它,所以所有線程都通過相同的對象訪問類。
如果我嘗試通過升壓::線程啓動功能(甚至只是一個)我得到的編譯錯誤:如果我直接通過主調用函數傳遞具有互斥體的類對象以通過引用提升::線程
/usr/include/boost/thread/pthread/shared_mutex.hpp:173:9: error:
‘boost::shared_mutex::shared_mutex(boost::shared_mutex&)’ is private
BOOST_THREAD_NO_COPYABLE(shared_mutex)
^
/cl_shared.h:12:7: error: within this context
class cl_shared {
^
它工作正常。如何多次運行該功能?多線程讀取/寫入該類時,線程安全的互斥體就在那裏。分解它看起來像:
class cl_shared {
public:
//constructor
cl_shared() { };
//functions here using the mtx
void hello() {
cout<<"hello"<<endl;
};
boost::shared_mutex mtx;
int aint;
};
cl_shared shared;
int main(int argc, char **argv) {
// XMA::mov_avg(shared, arg1); //does work
// boost::thread worker1(XMA::mov_avg, shared, arg1); //error: mutex is private
// boost::thread worker2(XMA::mov_avg, shared, arg1); //like to start it simultaneously;
//boost::thread worker1v2(XMA::mov_avg, boost::ref(shared), 0, avg_typ, pos_vel, w_leng, parse); //does compile, but is it ok?
}
功能看起來像:
//the function head:
void mov_avg(cl_shared &shared, int arg1){
//do sth.
}
http://www.boost.org/doc/html/thread/thread_management.html#thread.thread_management.tutorial.launching – llonesmiz
順便說一句,它說'互斥'的複製構造函數是私人的。 – llonesmiz
http://stackoverflow.com/questions/22354972/boost-thread-use-of-deleted-function-error – llonesmiz