boost 实现读写锁

 1 #include <boost/thread/shared_mutex.hpp>
 2 #include <boost/thread/locks.hpp>
 3 
 4 using BoostMutexWR = boost::shared_mutex;
 5 using BoostLockW = boost::unique_lock<BoostMutexWR>;
 6 using BoostLockR = boost::shared_lock<BoostMutexWR>;
 7 
 8 void usingLockWR()
 9 {
10     BoostMutexWR m_bstm;    // 创建一个互斥对象
11 
12     // 1. 加读锁，对象析构时自动释放锁资源
13     {
14         BoostLockR lockR(m_bstm);
15     }
16 
17     // 2. 加写锁，对象析构时自动释放锁资源
18     {
19         BoostLockW lockW(m_bstm);
20     }
21 }