网站首页 > 物联资讯 > 技术分享

boost 轻量级信号量

睿丰德科技 专注RFID识别技术和条码识别技术与管理软件的集成项目。质量追溯系统、MES系统、金蝶与条码系统对接、用友与条码系统对接 #include <boost/thread/condition_variable.hpp> #include <boost/thread/mutex.hpp>     #include <boost/thread/lock_types.hpp> #include <boost/thread.hpp>    class semaphore {     unsigned int count_;     boost::mutex mutex_;     boost::condition_variable condition_;   public:     explicit semaphore(unsigned int initial) : count_(initial){}       void signal()     {         {             boost::lock_guard<boost::mutex> lock(mutex_);             ++count_;         }         condition_.notify_one();      }       void wait()      {         boost::unique_lock<boost::mutex> lock(mutex_);         while (count_ == 0)         {              condition_.wait(lock);         }         --count_;     } }; RFID管理系统集成商 RFID中间件 条码系统中间层 物联网软件集成