std ::线程调用类的方法 [英] std::thread calling method of class
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问题描述
可能重复:
具有成员函数的开始线程
:
class Test
{
public:
void runMultiThread();
private:
int calculation(int from,int to);
}
如何运行方法计算
有两个不同的参数集(例如 calculate(0,10)
, calculate(11,20)
c)在方法 runMultiThread()
?
的两个线程中感谢我忘记了我需要pass <
解决方案
不要那么难:
#include< thread>
void Test :: runMultiThread()
{
std :: thread t1(& Test :: calculate,this,0,10)
std :: thread t2(& Test :: calculate,this,11,20);
t1.join();
t2.join();
}
如果仍需要计算结果,请使用 future :
#include< future&
void Test :: runMultiThread()
{
auto f1 = std :: async(& Test :: calculate,this,0,10)
auto f2 = std :: async(& Test :: calculate,this,11,20);
auto res1 = f1.get();
auto res2 = f2.get();
}
Possible Duplicate:
Start thread with member function
I have a small class:
class Test
{
public:
void runMultiThread();
private:
int calculate(int from, int to);
}
How its possible to run method calculate
with two differents set of parametrs(for example calculate(0,10)
, calculate(11,20)
) in two threads from method runMultiThread()
?
PS Thanks I have forgotten that I need pass this
, as parameter.
解决方案
Not so hard:
#include <thread>
void Test::runMultiThread()
{
std::thread t1(&Test::calculate, this, 0, 10);
std::thread t2(&Test::calculate, this, 11, 20);
t1.join();
t2.join();
}
If the result of the computation is still needed, use a future instead:
#include <future>
void Test::runMultiThread()
{
auto f1 = std::async(&Test::calculate, this, 0, 10);
auto f2 = std::async(&Test::calculate, this, 11, 20);
auto res1 = f1.get();
auto res2 = f2.get();
}
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