的boost :: condition_variable与升压::互斥:: scoped_lock的

Question

起初我是用boost::mutex::scoped_lock本身（这工作）

boost::mutex::scoped_lock lock(mutex_name); 
condition.wait(lock); //where condition = boost::condition_variable 

不过后来我换了锁，下面不工作

boost::lock_guard<boost::mutex> lock(mutex_name) 
condition.wait(lock); //Error 

有关如何解决问题的任何建议我收到智能感知错误，指出No instance of the overloaded function matches the argument list。编译错误是

Error 7 error C2664: 'void boost::condition_variable::wait(boost::unique_lock<Mutex> &)' : cannot convert parameter 1 from 'boost::lock_guard<Mutex>' to 'boost::unique_lock<Mutex> &' 

Answer 1

boost::lock_guard没有unlock成员函数，这是需要condition。使用unique_lock代替：

boost::unique_lock<boost::mutex> lock(mut); 
condition.wait(lock);