1.boost里的互斥量類型由mutex表示。
代碼示例:
#include <iostream>
#include <string>
#include <vector>
#include <boost/thread.hpp>
#include <boost/thread/mutex.hpp>
using namespace std;
using namespace boost;
int main()
{
mutex mu;
try
{
this_thread::sleep(posix_time::seconds(2));
mu.lock();//鎖定cout對象
cout << "Some operations" <<endl;
mu.unlock();
}
catch(int)
{
mu.unlock();
return 0;
}
}
二.上面的代碼好像似曾相識,是的,在防止內存泄露的時候采用的和上面類似的處理方式,更加簡潔的方式是智能指針,類似的我們需要用智能鎖改寫上面的代碼scoped_lock智能鎖。
#include <iostream>
#include <string>
#include <vector>
#include <boost/thread.hpp>
#include <boost/thread/mutex.hpp>
using namespace std;
using namespace boost;
template<typename T>
class basic_atom:noncopyable
{
private:
T n;
typedef mutex mutex_t;
mutex_t mu;
public:
basic_atom(T x = T()):n(x){}
T operator++()
{
mutex_t::scoped_lock lock(mu);
return ++n;
}
operator T(){return n;}
};
int main()
{
return 0;
}
