Concurrent Framework Synchronizer 同步器: Easy to use but easy to make dead lock as well
同步器是一些使线程可以等待另外一个线程的对象, 以容许他们协调工做.spa
同步器的种类 CountDownLatch, Semaphore, CyclicBarrier and Exchanger.线程
CountDownLatch倒计数同步器是一个一次性障碍, 容许一个或多个线程等待一个或多个其它线程作完某件事情.对象
调用CountDownLatch(int number)构造器初始化计数.同步
在等待线程上调用CountDownLatch.await()以阻塞线程.it
在工做线程上调用CountDownLatch.countDown()以减小计数, 当计数为0时激活其它全部等待线程.cli
在实际工做中根据业务逻辑的复杂度, 有可能同时有多个同步器存在, 多个线程的初始化, 执行, 收尾等若是须要屡次等待则须要多个同步器.map
在使用多个同步器时 可能出现死锁情形, 须要特别注意(很好用但也很危险).co
相关文章
- 1. 【C++】Item18. Make interfaces easy to use correctly and hard to use incorrectly
- 2. [gist]Introduces $.oauth() to make using OAuth from jQuery as easy as using $.ajax()
- 3. Designing CSS Layouts With Flexbox Is As Easy As Pie
- 4. How to use Repository with Doctrine as Service in Symfony
- 5. Its Easy to Launch a Wireless Deauthentication Attack
- 6. 【LeetCode Easy】013 Roman to Integer
- 7. How to become an iPhone developer in eight easy steps
- 8. ZipClip Provides Easy Web-to-Mobile Media Sharing
- 9. more adj/adv than as well as prefer to
- 10. Operating System: Three Easy Pieces --- Condition Variables (Note)
- 更多相关文章...
- • PHP 7 use 语句 - PHP 7 新特性
- • Lua 协同程序(coroutine) - Lua 教程
- • Docker容器实战(七) - 容器眼光下的文件系统
- • Docker容器实战(六) - 容器的隔离与限制
相关标签/搜索
每日一句
-
每一个你不满意的现在，都有一个你没有努力的曾经。
欢迎关注本站公众号,获取更多信息
相关文章
- 1. 【C++】Item18. Make interfaces easy to use correctly and hard to use incorrectly
- 2. [gist]Introduces $.oauth() to make using OAuth from jQuery as easy as using $.ajax()
- 3. Designing CSS Layouts With Flexbox Is As Easy As Pie
- 4. How to use Repository with Doctrine as Service in Symfony
- 5. Its Easy to Launch a Wireless Deauthentication Attack
- 6. 【LeetCode Easy】013 Roman to Integer
- 7. How to become an iPhone developer in eight easy steps
- 8. ZipClip Provides Easy Web-to-Mobile Media Sharing
- 9. more adj/adv than as well as prefer to
- 10. Operating System: Three Easy Pieces --- Condition Variables (Note)