{"id":31312,"date":"2023-10-21T21:31:41","date_gmt":"2023-06-21T05:57:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%90%8c%e6%ad%a5%e5%99%a8%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e5%a4%87%e5%bf%98%e5%bd%95\/"},"modified":"2025-08-12T23:23:21","modified_gmt":"2025-08-12T15:23:21","slug":"java%e7%9a%84%e5%90%8c%e6%ad%a5%e5%99%a8%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e5%a4%87%e5%bf%98%e5%bd%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%90%8c%e6%ad%a5%e5%99%a8%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e5%a4%87%e5%bf%98%e5%bd%95\/","title":{"rendered":"Java\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55"},"content":{"rendered":"

\u540c\u6b65\u5668\u662f\u4ec0\u4e48\u3002\u4f7f\u7528\u81ea\u8eab\u7684\u72b6\u6001\u6765\u63a7\u5236\u7ebf\u7a0b\u8fdb\u7a0b\u7684\u5bf9\u8c61\u88ab\u79f0\u4e3a\u540c\u6b65\u5668\u3002<\/p>\n

\u5047\u8bbe\u5b58\u5728\u4ee5\u4e0b\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n

package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.TimeUnit<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SynchronizerTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 1 start\"<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 1 end\"<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 start\"<\/span>);<\/span>\r\n\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 sleeping...\"<\/span>);<\/span>\r\n            TimeUnit<\/span>.<\/span>SECONDS<\/span>.<\/span>sleep<\/span>(<\/span>3<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 awake\"<\/span>);<\/span>\r\n\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 end\"<\/span>);<\/span>\r\n        });<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> static<\/span> Thread<\/span> runThread<\/span>(<\/span>ThrowingRunnable<\/span> process<\/span>)<\/span> {<\/span>\r\n        final<\/span> Thread<\/span> thread<\/span> =<\/span> new<\/span> Thread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            try<\/span> {<\/span>\r\n                process<\/span>.<\/span>run<\/span>();<\/span>\r\n            }<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span> {<\/span>\r\n                throw<\/span> new<\/span> RuntimeException<\/span>(<\/span>e<\/span>);<\/span>\r\n            }<\/span>\r\n        });<\/span>\r\n        thread<\/span>.<\/span>start<\/span>();<\/span>\r\n        return<\/span> thread<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    interface<\/span> ThrowingRunnable<\/span> {<\/span>\r\n        void<\/span> run<\/span>()<\/span> throws<\/span> Exception<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u540e\uff0c\u6211\u4eec\u5c06\u7701\u7565\u5bf9 runThread \u548c ThrowingRunnable \u7684\u63cf\u8ff0\u3002<\/p>\n
    \n
  • \n
      \uff12\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u30b9\u30ec\u30c3\u30c9\uff11\u306f\u6a19\u6e96\u51fa\u529b\u306b\u958b\u59cb\u3068\u7d42\u4e86\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u66f8\u304d\u51fa\u3057\u3066\u3044\u308b\u3060\u3051<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \u30b9\u30ec\u30c3\u30c9\uff12\u306f\u9014\u4e2d\u3067\uff13\u79d2\u9593\u306e\u30b9\u30ea\u30fc\u30d7\u3092\u5165\u308c\u3066\u3044\u308b<\/ul>\n
            Thread 1 start\r\nThread 1 end\r\nThread 2 start\r\nThread 2 sleeping...\r\nThread 2 awake\r\nThread 2 end\r\n<\/code><\/pre>\n
            \u5f53\u7ebf\u7a0b2\u5904\u4e8e\u7761\u7720\u72b6\u6001\u65f6\uff0c\u7ebf\u7a0b1\u4f1a\u6b63\u5e38\u6267\u884c\uff0c\u56e0\u6b64\u6d88\u606f\u4f1a\u5148\u4ee5\u7ebf\u7a0b1\u7ed3\u675f\u7684\u5f62\u5f0f\u88ab\u8f93\u51fa\u3002\u5728\u8fd9\u91cc\uff0c\u8bd5\u7740\u5f15\u5165\u4e00\u4e2a\u79f0\u4e3aCyclicBarrier\u7684\u540c\u6b65\u5668\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
            package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.CyclicBarrier<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.TimeUnit<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SynchronizerTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        final<\/span> CyclicBarrier<\/span> barrier<\/span> =<\/span> new<\/span> CyclicBarrier<\/span>(<\/span>2<\/span>);<\/span>\r\n\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 1 start\"<\/span>);<\/span>\r\n            barrier<\/span>.<\/span>await<\/span>();<\/span> \/\/ \u3053\u3053\u3067\u5f85\u6a5f<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 1 end\"<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 start\"<\/span>);<\/span>\r\n\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 sleeping...\"<\/span>);<\/span>\r\n            TimeUnit<\/span>.<\/span>SECONDS<\/span>.<\/span>sleep<\/span>(<\/span>3<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 awake\"<\/span>);<\/span>\r\n\r\n            barrier<\/span>.<\/span>await<\/span>();<\/span> \/\/ \u3053\u3053\u3067\u5f85\u6a5f<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread 2 end\"<\/span>);<\/span>\r\n        });<\/span>\r\n    }<\/span>\r\n\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            CyclicBarrier \u3092\uff12\u3067\u521d\u671f\u5316\u3057\u3066\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001\u5404\u30b9\u30ec\u30c3\u30c9\u306e\u9014\u4e2d\u3067 await \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u3088\u3046\u306b\u3057\u3066\u3044\u308b<\/p>\n
            Thread 1 start\r\nThread 2 start\r\nThread 2 sleeping...\r\nThread 2 awake\r\nThread 2 end\r\nThread 1 end\r\n<\/code><\/pre>\n
              \n
            • \n
                \u4eca\u5ea6\u306f\u30b9\u30ec\u30c3\u30c9\uff11\u304c\u30b9\u30ec\u30c3\u30c9\uff12\u3088\u308a\u5f8c\u306b\u7d42\u4e86\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                CyclicBarrier \u306e await \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u305d\u308c\u3092\u547c\u3073\u51fa\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\uff08\u51e6\u7406\u304c\u505c\u6b62\u3059\u308b\uff09
                \n\u305d\u3057\u3066\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u6307\u5b9a\u3055\u308c\u305f\u6570\u3068\u540c\u3058\u56de\u6570 await \u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3070\u308c\u308b\u3068\u3001\u30d6\u30ed\u30c3\u30af\u306f\u89e3\u653e\u3055\u308c\u3066\u51e6\u7406\u304c\u518d\u958b\u3055\u308c\u308b<\/p>\n
                \u3064\u307e\u308a\u3001\u4e0a\u8a18\u5b9f\u88c5\u306e\u5834\u5408\u306f await \u304c\uff12\u56de\u547c\u3070\u308c\u308b\u3068\u30d6\u30ed\u30c3\u30af\u304c\u89e3\u653e\u3055\u308c\u308b<\/p>\n
                \u3057\u305f\u304c\u3063\u3066\u3001\u30b9\u30ec\u30c3\u30c9\uff11\u306f\u30b9\u30ec\u30c3\u30c9\uff12\u306e\u30b9\u30ea\u30fc\u30d7\u304c\u7d42\u308f\u3063\u3066\uff12\u56de\u76ee\u306e await \u304c\u547c\u3070\u308c\u308b\u307e\u3067\u51e6\u7406\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u305f\u3053\u3068\u306b\u306a\u308b
                \n\u3053\u306e\u7d50\u679c\u3001\u30b9\u30ec\u30c3\u30c9\uff11\u306e\u7d42\u4e86\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u30b9\u30ec\u30c3\u30c9\uff12\u306e\u30b9\u30ea\u30fc\u30d7\u7d42\u4e86\u3088\u308a\u5f8c\u306b\u66f8\u304d\u51fa\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u3063\u305f<\/p>\n
                \u30b9\u30ec\u30c3\u30c9\uff12\u306e\u7d42\u4e86\u30e1\u30c3\u30bb\u30fc\u30b8\u3088\u308a\u5f8c\u306b\u306a\u308b\u304b\u524d\u306b\u306a\u308b\u304b\u306f\u30bf\u30a4\u30df\u30f3\u30b0\u6b21\u7b2c<\/p>\n
                \u88ab\u79f0\u4e3a\u540c\u6b65\u5668\u7684\u5bf9\u8c61\uff0c\u50cfCyclicBarrier\u4e00\u6837\uff0c\u63d0\u4f9b\u4e86\u63a7\u5236\u591a\u4e2a\u7ebf\u7a0b\u6267\u884c\u7684\u529f\u80fd\uff0c\u5229\u7528\u81ea\u8eab\u7684\u72b6\u6001\uff08\u5728CyclicBarrier\u7684\u60c5\u51b5\u4e0b\u4e3aawait\u88ab\u8c03\u7528\u7684\u6b21\u6570\uff09\u3002<\/p>\n
                \u4f7f\u7528\u540c\u6b65\u5668\u53ef\u4ee5\u7ec6\u81f4\u5730\u63a7\u5236\u591a\u4e2a\u7ebf\u7a0b\u7684\u6267\u884c\u65f6\u673a\u3002<\/p>\n
                Java\u7684\u6807\u51c6API\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4e94\u79cd\u540c\u6b65\u5668\u3002<\/p>\n
                  \n
                • \n
                    CyclicBarrier<\/ul>\n<\/li>\n<\/ul>\n
                     <\/p>\n
                      \n
                    • \n
                        CountDownLatch<\/ul>\n<\/li>\n<\/ul>\n
                         <\/p>\n
                          \n
                        • \n
                            Phaser<\/ul>\n<\/li>\n<\/ul>\n
                             <\/p>\n
                              \n
                            • \n
                                Semaphore<\/ul>\n<\/li>\n<\/ul>\n
                                 <\/p>\n
                                  Exchanger<\/ul>\n
                                  \u5728\u8fd9\u91cc\uff0c\u6211\u4f1a\u8bb0\u5f55\u8fd9\u4e9b\u540c\u6b65\u5668\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n
                                  \u4fe1\u53f7\u65d7
                                  \n\u4fe1\u53f7\u91cf\uff08Semaphore\uff09\u53ef\u7528\u4e8e\u63a7\u5236\u5206\u914d\u7ed9\u5177\u6709\u8d44\u6e90\u9650\u5236\u7684\u7ebf\u7a0b\u7684\u60c5\u51b5\u3002<\/p>\n
                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Semaphore<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.TimeUnit<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SemaphoreTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        Semaphore<\/span> semaphore<\/span> =<\/span> new<\/span> Semaphore<\/span>(<\/span>2<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>10<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            String<\/span> name<\/span> =<\/span> \"Thread[\"<\/span> +<\/span> i<\/span> +<\/span> \"]\"<\/span>;<\/span>\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" start\"<\/span>);<\/span>\r\n\r\n                semaphore<\/span>.<\/span>acquire<\/span>();<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" acquire\"<\/span>);<\/span>\r\n\r\n                TimeUnit<\/span>.<\/span>SECONDS<\/span>.<\/span>sleep<\/span>(<\/span>1<\/span>);<\/span>\r\n\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" release\"<\/span>);<\/span>\r\n                semaphore<\/span>.<\/span>release<\/span>();<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                  Semaphore \u3092\uff12\u3067\u521d\u671f\u5316\u3057\u3066\u3044\u308b<\/p>\n
                                  acquire \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u305f\u5f8c\u306b\uff11\u79d2\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089 release \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u30b9\u30ec\u30c3\u30c9\u3092\u540c\u6642\u306b\uff11\uff10\u500b\u8d77\u52d5\u3057\u3066\u3044\u308b
                                  \n\u3053\u306e\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b<\/p>\n
                                  Thread[4] start\r\nThread[0] start\r\nThread[0] acquire\r\nThread[2] start\r\nThread[4] acquire\r\nThread[7] start\r\nThread[3] start\r\nThread[9] start\r\nThread[6] start\r\nThread[8] start\r\nThread[1] start\r\nThread[5] start\r\nThread[4] release\r\nThread[0] release\r\nThread[1] acquire\r\nThread[6] acquire\r\nThread[6] release\r\nThread[1] release\r\nThread[2] acquire\r\nThread[8] acquire\r\nThread[2] release\r\nThread[8] release\r\nThread[3] acquire\r\nThread[5] acquire\r\nThread[3] release\r\nThread[5] release\r\nThread[7] acquire\r\nThread[9] acquire\r\nThread[7] release\r\nThread[9] release\r\n<\/code><\/pre>\n
                                  \u5982\u679c\u4ee5\u56fe\u8868\u5f62\u5f0f\u8fdb\u884c\u6574\u7406\uff0c\u53ef\u4ee5\u5f88\u6e05\u6670\u5730\u8868\u8fbe\u5982\u4e0b\uff1a<\/p>\n
                                  \"image.png\"\u4ed4\u7ec6\u89c2\u5bdf\u53ef\u4ee5\u53d1\u73b0\uff0c\u9ec4\u8272\u90e8\u5206\uff08\u4ece\u8c03\u7528Semaphore\u7684acquire\u5230\u8c03\u7528release\u7684\u533a\u95f4\uff09\u4e2d\u59cb\u7ec8\u6700\u591a\u53ea\u6709\u4e24\u4e2a\u7ebf\u7a0b\u3002<\/p>\n
                                  Semaphore \u306f\u3001\u540c\u6642\u306b\u5229\u7528\u53ef\u80fd\u306a\u30ea\u30bd\u30fc\u30b9\u306e\u6570\u3092\u5236\u5fa1\u3059\u308b\u3068\u304d\u306b\u5229\u7528\u3067\u304d\u308b
                                  \n\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5f15\u6570\u3067\u540c\u6642\u5229\u7528\u53ef\u80fd\u306a\u8a31\u53ef\u306e\u6570\uff08\u30d1\u30fc\u30df\u30c3\u30c8\uff09\u3092\u6307\u5b9a\u3059\u308b<\/p>\n
                                  \u4e0a\u8a18\u4f8b\u3067\u306f\u3001\u30d1\u30fc\u30df\u30c3\u30c8\u306b\u306f\uff12\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b<\/p>\n
                                  \u30d1\u30fc\u30df\u30c3\u30c8\u306e\u6570\u304c\u4f59\u3063\u3066\u3044\u308b\u72b6\u614b\u3067 acquire \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001\u30d1\u30fc\u30df\u30c3\u30c8\u304c\u6255\u3044\u51fa\u3055\u308c\u308b
                                  \n\u30d1\u30fc\u30df\u30c3\u30c8\u306e\u6570\u306b\u7a7a\u304d\u304c\u306a\u3044\u72b6\u614b\u3067 acquire \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001\u30d1\u30fc\u30df\u30c3\u30c8\u304c\u89e3\u653e\u3055\u308c\u308b\u307e\u3067\u547c\u3073\u51fa\u3057\u5143\u306e\u30b9\u30ec\u30c3\u30c9\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b<\/p>\n
                                  release \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001\u30d1\u30fc\u30df\u30c3\u30c8\u304c\u89e3\u653e\u3055\u308c\u308b
                                  \n\u3064\u307e\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306e\u3088\u3046\u306a\u3053\u3068\u3092\u518d\u73fe\u3067\u304d\u308b<\/p>\n
                                  \u4e0d\u5f15\u53d1 InterruptedException \u7684 acquire<\/p>\n
                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Semaphore<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SemaphoreTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Semaphore<\/span> semaphore<\/span> =<\/span> new<\/span> Semaphore<\/span>(<\/span>1<\/span>);<\/span>\r\n        semaphore<\/span>.<\/span>acquire<\/span>();<\/span>\r\n\r\n        final<\/span> Thread<\/span> thread<\/span> =<\/span> runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            Thread<\/span> th<\/span> =<\/span> Thread<\/span>.<\/span>currentThread<\/span>();<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[Thread] before acquireUninterruptibly (interrupted=\"<\/span> +<\/span> th<\/span>.<\/span>isInterrupted<\/span>()<\/span> +<\/span> \")\"<\/span>);<\/span>\r\n            semaphore<\/span>.<\/span>acquireUninterruptibly<\/span>();<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[Thread] after acquireUninterruptibly (interrupted=\"<\/span> +<\/span> th<\/span>.<\/span>isInterrupted<\/span>()<\/span> +<\/span> \")\"<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        Thread<\/span>.<\/span>sleep<\/span>(<\/span>1000<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[main] interrupt\"<\/span>);<\/span>\r\n        thread<\/span>.<\/span>interrupt<\/span>();<\/span>\r\n        Thread<\/span>.<\/span>sleep<\/span>(<\/span>1000<\/span>);<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[main] release\"<\/span>);<\/span>\r\n        semaphore<\/span>.<\/span>release<\/span>();<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                    \n
                                  • \n
                                      \u30d1\u30fc\u30df\u30c3\u30c8\u6570\uff11\u3067 Semaphore \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                      \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u306e\u65b9\u3067\u3059\u3050\u306b acquire \u3092\u547c\u3093\u3067\u30d1\u30fc\u30df\u30c3\u30c8\u306e\u7a7a\u304d\u3092\u306a\u304f\u3057\u3066\u3044\u308b<\/p>\n
                                      \u5225\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3066\u3001 acquireUninterruptibly \u3067\u30d1\u30fc\u30df\u30c3\u30c8\u304c\u7a7a\u304f\u306e\u3092\u5f85\u6a5f\u3059\u308b
                                      \n\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u306e\u65b9\u3067\u5c11\u3057\u5f85\u3063\u3066\u304b\u3089\u5225\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u3092\u884c\u3044\u3001 Semaphore \u3092\u89e3\u653e\u3059\u308b<\/p>\n
                                      [Thread] before acquireUninterruptibly (interrupted=false)\r\n[main] interrupt\r\n[main] release\r\n[Thread] after acquireUninterruptibly (interrupted=true)\r\n<\/code><\/pre>\n
                                      acquire \u30e1\u30bd\u30c3\u30c9\u306f throws InterruptedException \u3067\u5ba3\u8a00\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u547c\u3073\u51fa\u3057\u5143\u3067 InterruptedException \u3092\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/p>\n
                                      \u5b9f\u88c5\u4f8b\u3067\u306f throws Exception \u3092\u5ba3\u8a00\u3057\u305f ThrowingThrowable \u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u7701\u7565\u3067\u304d\u3066\u3044\u308b\u304c\u3001\u5b9f\u969b\u306f InterruptedException \u306e catch \u304c\u5fc5\u8981\u306b\u306a\u308b<\/p>\n
                                      \u4e00\u65b9\u3067\u3001 acquireUninterruptibly \u306b\u306f throws \u53e5\u304c\u5ba3\u8a00\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u547c\u3073\u51fa\u3057\u5143\u3067 InterruptedException \u306e\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3092\u66f8\u304b\u306a\u304f\u3066\u3082\u3044\u3044
                                      \n\u30d1\u30fc\u30df\u30c3\u30c8\u306b\u7a7a\u304d\u304c\u306a\u3044\u5834\u5408\u306e\u6319\u52d5\u306f acquire \u3068\u540c\u3058\u3067\u3001\u547c\u3073\u51fa\u3057\u5143\u306e\u30b9\u30ec\u30c3\u30c9\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b
                                      \n\u3057\u304b\u3057\u3001\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307e\u308c\u3066\u3082\u30d6\u30ed\u30c3\u30af\u306f\u7d99\u7d9a\u3055\u308c\u308b
                                      \n\u30d1\u30fc\u30df\u30c3\u30c8\u306b\u7a7a\u304d\u304c\u3067\u304d\u308b\u3068\u30d6\u30ed\u30c3\u30af\u306f\u89e3\u653e\u3055\u308c\u51e6\u7406\u306f\u518d\u958b\u3055\u308c\u308b
                                      \n\u3053\u306e\u3068\u304d\u3001 Thread \u306b\u306f\u5272\u308a\u8fbc\u307f\u3055\u308c\u305f\u3053\u3068\u304c\u8a18\u9332\u3055\u308c\u308b\u306e\u3067\u3001\u5fc5\u8981\u3067\u3042\u308c\u3070 isInterrupted \u306a\u3069\u3067\u72b6\u614b\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u3067\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u304c\u3067\u304d\u308b<\/p>\n
                                      \u5982\u679c\u8bb8\u53ef\u8bc1\u5df2\u6ee1\uff0c\u4e5f\u4e0d\u9700\u8981\u7b49\u5f85\u3002<\/p>\n
                                      package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Semaphore<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SemaphoreTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Semaphore<\/span> semaphore<\/span> =<\/span> new<\/span> Semaphore<\/span>(<\/span>1<\/span>);<\/span>\r\n        semaphore<\/span>.<\/span>acquire<\/span>();<\/span>\r\n\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[thread] tryAcquire\"<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[thread] value = \"<\/span> +<\/span> semaphore<\/span>.<\/span>tryAcquire<\/span>());<\/span>\r\n        });<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[main] sleep\"<\/span>);<\/span>\r\n        Thread<\/span>.<\/span>sleep<\/span>(<\/span>1000<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[main] release\"<\/span>);<\/span>\r\n        semaphore<\/span>.<\/span>release<\/span>();<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \n
                                      • \n
                                          \u30d1\u30fc\u30df\u30c3\u30c8\u6570\uff11\u3067 Semaphore \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                           <\/p>\n
                                            \n
                                          • \n
                                              \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067\u5373\u5ea7\u306b acquire \u3092\u547c\u3073\u3001\u30d1\u30fc\u30df\u30c3\u30c8\u306e\u7a7a\u304d\u3092\u306a\u304f\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                               <\/p>\n
                                                \n
                                              • \n
                                                  \u5225\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3066\u3001 tryAcquire \u3067\u30d1\u30fc\u30df\u30c3\u30c8\u306e\u53d6\u5f97\u3092\u8a66\u307f\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                   <\/p>\n
                                                    \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067\u306f\uff11\u79d2\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089\u3001\u6700\u521d\u306b\u53d6\u5f97\u3057\u305f\u30d1\u30fc\u30df\u30c3\u30c8\u3092\u89e3\u653e\u3057\u3066\u3044\u308b<\/ul>\n
                                                    [main] sleep\r\n[thread] tryAcquire\r\nvalue = false\r\n[main] release\r\n<\/code><\/pre>\n
                                                      \n
                                                    • \n
                                                        \u30d1\u30fc\u30df\u30c3\u30c8\u306b\u7a7a\u304d\u304c\u306a\u3044\u72b6\u614b\u3067 acquire \u3092\u547c\u3093\u3060\u5834\u5408\u3001\u547c\u3073\u51fa\u3057\u5143\u306e\u30b9\u30ec\u30c3\u30c9\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                         <\/p>\n
                                                          \n
                                                        • \n
                                                            \u3057\u304b\u3057 tryAcquire \u306e\u5834\u5408\u3001\u30d1\u30fc\u30df\u30c3\u30c8\u306b\u7a7a\u304d\u304c\u306a\u3044\u5834\u5408\u306f\u3059\u3050\u306b\u30e1\u30bd\u30c3\u30c9\u304c\u623b\u3055\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                            \u3053\u306e\u3068\u304d\u3001\u623b\u308a\u5024\u3068\u3057\u3066 false \u304c\u8fd4\u3055\u308c\u308b
                                                            \n\u30d1\u30fc\u30df\u30c3\u30c8\u306b\u7a7a\u304d\u304c\u3042\u308a\u53d6\u5f97\u3067\u304d\u305f\u5834\u5408\u306f true \u304c\u8fd4\u3055\u308c\u308b<\/p>\n
                                                            tryAcquire(long, TimeUnit) \u3092\u4f7f\u3048\u3070\u3001\u5f85\u6a5f\u6642\u9593\u306b\u4e0a\u9650\u3092\u8a2d\u3051\u308b\u3053\u3068\u3082\u3067\u304d\u308b<\/p>\n
                                                            \u540c\u65f6\u83b7\u53d6\u591a\u4e2a\u8bb8\u53ef\u8bc1<\/p>\n
                                                            package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Semaphore<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SemaphoreTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Semaphore<\/span> semaphore<\/span> =<\/span> new<\/span> Semaphore<\/span>(<\/span>4<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>4<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            int<\/span> n<\/span> =<\/span> i<\/span>+<\/span>1<\/span>;<\/span>\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> n<\/span> +<\/span> \"] start\"<\/span>);<\/span>\r\n                semaphore<\/span>.<\/span>acquire<\/span>(<\/span>n<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> n<\/span> +<\/span> \"] acquire(\"<\/span> +<\/span> n<\/span> +<\/span> \")\"<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> n<\/span> +<\/span> \"] sleep\"<\/span>);<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>100<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> n<\/span> +<\/span> \"] awake\"<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> n<\/span> +<\/span> \"] release(\"<\/span> +<\/span> n<\/span> +<\/span> \")\"<\/span>);<\/span>\r\n                semaphore<\/span>.<\/span>release<\/span>(<\/span>n<\/span>);<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                              \n
                                                            • \n
                                                                \u30d1\u30fc\u30df\u30c3\u30c8\u6570\uff14\u3067 Semaphore \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                 <\/p>\n
                                                                  \uff14\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3001\u305d\u308c\u305e\u308c\u30d1\u30fc\u30df\u30c3\u30c8\u6570\uff11\uff0c\uff12\uff0c\uff13\uff0c\uff14\u3067 acquire \u3068 release \u3092\u884c\u3046\u3088\u3046\u306b\u3057\u3066\u3044\u308b<\/ul>\n
                                                                  [3] start\r\n[4] start\r\n[1] start\r\n[2] start\r\n[3] acquire(3)\r\n[1] acquire(1)\r\n[3] sleep\r\n[1] sleep\r\n[1] awake\r\n[3] awake\r\n[1] release(1)\r\n[3] release(3)\r\n[4] acquire(4)\r\n[4] sleep\r\n[4] awake\r\n[4] release(4)\r\n[2] acquire(2)\r\n[2] sleep\r\n[2] awake\r\n[2] release(2)\r\n<\/code><\/pre>\n
                                                                  \u4ee5\u56fe\u8868\u7684\u5f62\u5f0f\u8868\u793a\u5982\u4e0b\u3002<\/p>\n
                                                                  \"image.png\"
                                                                  \nacquire(int) \u304a\u3088\u3073 release(int) \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u4e00\u5ea6\u306b\u8907\u6570\u306e\u30d1\u30fc\u30df\u30c3\u30c8\u306e\u53d6\u5f97\u3084\u89e3\u653e\u304c\u3067\u304d\u308b<\/p>\n
                                                                  \u5982\u679c\u4f7f\u7528\u8d85\u8fc7\u6784\u9020\u51fd\u6570\u6307\u5b9a\u7684\u8bb8\u53ef\u6570\u91cf\u8fdb\u884cacquire\uff0c\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f
                                                                  \n\u5b9e\u9645\u6d4b\u8bd5\u7ed3\u679c\u5982\u4e0b\u3002\u5f53\u4ee5\u8d85\u8fc7\u8bb8\u53ef\u6570\u91cf\u7684\u6570\u8fdb\u884cacquire\u65f6
                                                                  \npackage synchronizer;<\/p>\n
                                                                  import java.util.concurrent.Semaphore;<\/p>\n
                                                                  public class SemaphoreTest {
                                                                  \npublic static void main(String[] args) throws Exception {
                                                                  \nfinal Semaphore semaphore = new Semaphore(2);<\/p>\n
                                                                  System.out.println(“acquire(3)\u4e4b\u524d”);
                                                                  \nsemaphore.acquire(3);
                                                                  \nSystem.out.println(“acquire(3)\u4e4b\u540e”);
                                                                  \n}
                                                                  \n}<\/p>\n
                                                                  \u6267\u884c\u7ed3\u679c
                                                                  \nacquire(3)\u4e4b\u524d<\/p>\n
                                                                  \u6ca1\u6709\u51fa\u73b0\u9519\u8bef\uff0cacquire\u5c06\u4e00\u76f4\u7b49\u5f85\u76f4\u5230\u8bb8\u53ef\u53ef\u7528\u4e3a3\u3002
                                                                  \n\u90a3\u4e48\uff0c\u4f1a\u53d8\u6210\u6c38\u4e45\u963b\u585e\u7684\u72b6\u6001\u5417\uff1f\u4e0d\u662f\u7684\uff0c\u53ea\u9700\u8981\u6267\u884c3\u6b21release\u5c31\u80fd\u7ee7\u7eed\u8fdb\u884c\u3002<\/p>\n
                                                                  \u91ca\u653e\u8d85\u8fc7\u8bb8\u53ef\u6570\u91cf\u7684\u8bb8\u53ef
                                                                  \npackage synchronizer;<\/p>\n
                                                                  import java.util.concurrent.Semaphore;<\/p>\n
                                                                  public class SemaphoreTest {
                                                                  \npublic static void main(String[] args) throws Exception {
                                                                  \nfinal Semaphore semaphore = new Semaphore(2);<\/p>\n
                                                                  runThread(() -> {
                                                                  \nsemaphore.release(3);
                                                                  \n});<\/p>\n
                                                                  System.out.println(“acquire(3)\u4e4b\u524d”);
                                                                  \nsemaphore.acquire(3);
                                                                  \nSystem.out.println(“acquire(3)\u4e4b\u540e”);
                                                                  \n}
                                                                  \n}<\/p>\n
                                                                  \u6267\u884c\u7ed3\u679c
                                                                  \nacquire(3)\u4e4b\u524d
                                                                  \nacquire(3)\u4e4b\u540e<\/p>\n
                                                                  \u867d\u7136\u5728\u6784\u9020\u51fd\u6570\u4e2d\u6307\u5b9a\u4e86\u8bb8\u53ef\u6570\u91cf\uff0c\u4f46\u5e76\u4e0d\u4e25\u683c\u68c0\u67e5acquire\u548crelease\u7684\u6b21\u6570\u662f\u5426\u8d85\u8fc7\u4e86\u8be5\u503c\u3002
                                                                  \n\u65e0\u8bba\u8bb8\u53ef\u6570\u91cf\u5982\u4f55\uff0c\u90fd\u53ef\u4ee5\u81ea\u7531\u5730\u8fdb\u884c\u4efb\u610f\u6570\u91cf\u7684acquire\u548crelease\u64cd\u4f5c\u3002
                                                                  \nSemaphore\u7684Javadoc\u4e2d\u6709\u4ee5\u4e0b\u8bf4\u660e\u3002<\/p>\n
                                                                  \uff5e\u4f7f\u7528Semaphore\u7684\u9002\u5f53\u65b9\u5f0f\u662f\u7531\u5e94\u7528\u7a0b\u5e8f\u7684\u7f16\u7801\u7ea6\u5b9a\u786e\u7acb\u7684\u3002
                                                                  \nrelease(int) | Semaphore (Javadoc)<\/p>\n
                                                                  \u8fd9\u610f\u5473\u7740\uff0c\u63a7\u5236acquire\u548crelease\u8c03\u7528\u6b21\u6570\u4ee5\u7b26\u5408\u8bb8\u53ef\u6570\u91cf\u7684\u8d23\u4efb\u5728\u4e8e\u5e94\u7528\u7a0b\u5e8f\u7684\u4e00\u4fa7\u3002
                                                                  \n\u8fd9\u662f\u6211\u4e2a\u4eba\u7684\u89e3\u91ca\u3002<\/p>\n
                                                                  \u83b7\u53d6\u548c\u91ca\u653e\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7ebf\u7a0b\u4e2d\u8fdb\u884c\u3002\u6211\u4f1a\u88ab\u8ba4\u4e3a\u5728\u5df2\u83b7\u53d6\u7684\u7ebf\u7a0b\u4e0a\u8c03\u7528 release\uff0c\u4f46\u4e8b\u5b9e\u5e76\u975e\u5982\u6b64\u3002<\/p>\n
                                                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Semaphore<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SemaphoreTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Semaphore<\/span> semaphore<\/span> =<\/span> new<\/span> Semaphore<\/span>(<\/span>1<\/span>);<\/span>\r\n        semaphore<\/span>.<\/span>acquire<\/span>();<\/span>\r\n\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            semaphore<\/span>.<\/span>release<\/span>();<\/span>\r\n            semaphore<\/span>.<\/span>acquire<\/span>();<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"acquire!\"<\/span>);<\/span>\r\n        });<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                    \n
                                                                  • \n
                                                                      \u30d1\u30fc\u30df\u30c3\u30c8\u6570\uff11\u3067 Semaphore \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                       <\/p>\n
                                                                        \n
                                                                      • \n
                                                                          \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067 acquire \u3092\u547c\u3093\u3067\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                           <\/p>\n
                                                                            \u5225\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3001\u6700\u521d\u306b release \u3092\u547c\u3093\u3067\u304b\u3089 acquire \u3092\u3057\u3066\u3044\u308b<\/ul>\n
                                                                            acquire!\r\n<\/code><\/pre>\n
                                                                            release \u30e1\u30bd\u30c3\u30c9\u306f\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3068\u306f\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u547c\u3070\u308c\u3066\u3044\u308b\u304c\u3001\u554f\u984c\u306a\u304f\u30d1\u30fc\u30df\u30c3\u30c8\u304c\u89e3\u653e\u3055\u308c\u3066\u7d9a\u304f acquire \u3067\u30d1\u30fc\u30df\u30c3\u30c8\u3092\u7372\u5f97\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b<\/p>\n
                                                                            Semaphore \u306f\u30d1\u30fc\u30df\u30c3\u30c8\u3068\u30b9\u30ec\u30c3\u30c9\u3068\u306e\u7d10\u3065\u304d\u306f\u898b\u3066\u304a\u3089\u305a\u3001\u5358\u306b\u30d1\u30fc\u30df\u30c3\u30c8\u306e\u6570\u3060\u3051\u3067\u5236\u5fa1\u3092\u3057\u3066\u3044\u308b<\/p>\n
                                                                            \u5012\u6570\u8ba1\u6570\u5668
                                                                            \nCountDownLatch \u662f\u4e00\u79cd\u9002\u7528\u4e8e\u5e0c\u671b\u5728\u7279\u5b9a\u6761\u4ef6\u6ee1\u8db3\u4e4b\u524d\u963b\u6b62\u7ebf\u7a0b\u8fdb\u884c\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u7684\u5de5\u5177\u3002<\/p>\n
                                                                            Latch\uff08\u30e9\u30c3\u30c1\uff09\u662f\u4e00\u4e2a\u65e5\u8bed\u8bcd\uff0c\u610f\u4e3a\u201c\u5916\u64a4\u6b62\u201d\u6216\u201c\u95e8\u95e9\u201d\u3002<\/p>\n
                                                                            package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.CountDownLatch<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> CountDownLatchTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> CountDownLatch<\/span> latch<\/span> =<\/span> new<\/span> CountDownLatch<\/span>(<\/span>3<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            String<\/span> name<\/span> =<\/span> \"Thread[\"<\/span> +<\/span> i<\/span> +<\/span> \"]\"<\/span>;<\/span>\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" start\"<\/span>);<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>500<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" end\"<\/span>);<\/span>\r\n                latch<\/span>.<\/span>countDown<\/span>();<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n\r\n        char<\/span>[]<\/span> labels<\/span> =<\/span> {<\/span>'a'<\/span>,<\/span> 'b'<\/span>,<\/span> 'c'<\/span>};<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            String<\/span> name<\/span> =<\/span> \"Thread[\"<\/span> +<\/span> labels<\/span>[<\/span>i<\/span>]<\/span> +<\/span> \"]\"<\/span>;<\/span>\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" await...\"<\/span>);<\/span>\r\n                latch<\/span>.<\/span>await<\/span>();<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" end\"<\/span>);<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                              \n
                                                                            • \n
                                                                                \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\uff13\u3092\u6307\u5b9a\u3057\u3066 CountDownLatch \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                 <\/p>\n
                                                                                  \n
                                                                                • \n
                                                                                    \u30b9\u30ec\u30c3\u30c9\uff13\u3064(1, 2, 3)\u3092\u8d77\u52d5\u3057\u3001500\u30df\u30ea\u79d2\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089 CountDownLatch \u306e countDown \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076<\/ul>\n<\/li>\n<\/ul>\n
                                                                                     <\/p>\n
                                                                                      \u5225\u306e\u30b9\u30ec\u30c3\u30c9\uff13\u3064(a, b, c)\u3092\u8d77\u52d5\u3057\u3001\u3053\u3061\u3089\u306f await \u3067\u51e6\u7406\u3092\u5f85\u6a5f\u3055\u305b\u3066\u3044\u308b<\/ul>\n
                                                                                      Thread[2] start\r\nThread[1] start\r\nThread[0] start\r\nThread[a] await...\r\nThread[b] await...\r\nThread[c] await...\r\nThread[2] end\r\nThread[1] end\r\nThread[0] end\r\nThread[a] end\r\nThread[b] end\r\nThread[c] end\r\n<\/code><\/pre>\n
                                                                                        \n
                                                                                      • \n
                                                                                          \u5f8c\u306b\u8d77\u52d5\u3057\u305f\uff13\u3064\u306e\u30b9\u30ec\u30c3\u30c9(a, b, c)\u306f\u3001\u5148\u306b\u8d77\u52d5\u3057\u305f\uff13\u3064\u306e\u30b9\u30ec\u30c3\u30c9(1, 2, 3)\u306e\u51e6\u7406\u304c\u7d42\u4e86\u3059\u308b\u307e\u3067\u5f85\u6a5f\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                          CountDownLatch \u306f\u3001\u307e\u305a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u30ab\u30a6\u30f3\u30c8\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b<\/p>\n
                                                                                          \u5185\u90e8\u306e\u30ab\u30a6\u30f3\u30bf\u30fc\u304c\u3053\u306e\u5024\u3067\u521d\u671f\u5316\u3055\u308c\u308b<\/p>\n
                                                                                          countDown \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u30ab\u30a6\u30f3\u30c8\u304c\uff11\u3064\u6e1b\u308b<\/p>\n
                                                                                          countDown \u306f\u5f85\u6a5f\u3055\u305b\u3089\u308c\u308b\u3053\u3068\u306f\u306a\u304f\u3001\u3059\u3050\u547c\u3073\u51fa\u3057\u5143\u306b\u51e6\u7406\u304c\u623b\u3055\u308c\u308b
                                                                                          \n\u30ab\u30a6\u30f3\u30c8\u306e\u521d\u671f\u5024\u4ee5\u4e0a\u306e\u56de\u6570\u547c\u3073\u51fa\u3057\u3066\u3082\u3001\u4f8b\u5916\u306b\u306a\u308b\u3053\u3068\u306f\u306a\u3044<\/p>\n
                                                                                          await \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001\u30ab\u30a6\u30f3\u30c8\u304c0\u306b\u306a\u308b\u307e\u3067\u30b9\u30ec\u30c3\u30c9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b
                                                                                          \n\u3053\u308c\u306b\u3088\u308a\u3001\u3044\u304f\u3064\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u5168\u3066\u7d42\u308f\u308b\u307e\u3067\u51e6\u7406\u3092\u5f85\u6a5f\u3055\u305b\u308b\u3001\u307f\u305f\u3044\u306a\u5236\u5fa1\u304c\u5b9f\u73fe\u3067\u304d\u308b<\/p>\n
                                                                                          CountDownLatch \u306f\u4e00\u5ea6\u30ab\u30a6\u30f3\u30c8\u304c\u6e1b\u308b\u3068\u5143\u306b\u623b\u3059\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u518d\u5229\u7528\u304c\u3067\u304d\u306a\u3044<\/p>\n
                                                                                          \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308a\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308b<\/p>\n
                                                                                          \u5faa\u73af\u5c4f\u969c
                                                                                          \nCyclicBarrier \u53ef\u7528\u4e8e\u9700\u8981\u540c\u6b65\u591a\u4e2a\u7ebf\u7a0b\u7684\u573a\u5408\u3002<\/p>\n
                                                                                          package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.CyclicBarrier<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> CyclicBarrierTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        final<\/span> CyclicBarrier<\/span> barrier<\/span> =<\/span> new<\/span> CyclicBarrier<\/span>(<\/span>3<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            String<\/span> name<\/span> =<\/span> \"Thread[\"<\/span> +<\/span> i<\/span> +<\/span> \"]\"<\/span>;<\/span>\r\n            int<\/span> time<\/span> =<\/span> 100<\/span> *<\/span> (<\/span>i<\/span>+<\/span>1<\/span>);<\/span>\r\n\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" start\"<\/span>);<\/span>\r\n\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" sleep \"<\/span> +<\/span> time<\/span> +<\/span> \"ms\"<\/span>);<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>time<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" awake\"<\/span>);<\/span>\r\n                barrier<\/span>.<\/span>await<\/span>();<\/span>\r\n\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" end\"<\/span>);<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                            \n
                                                                                          • \n
                                                                                              \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\uff13\u3092\u6307\u5b9a\u3057\u3066 CyclicBarrier \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                               <\/p>\n
                                                                                                \uff13\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3001\u305d\u308c\u305e\u308c\u5c11\u3057\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089 CyclicBarrier \u306e await \u3092\u547c\u3093\u3067\u5f85\u6a5f\u3057\u3066\u3044\u308b<\/ul>\n
                                                                                                Thread[2] start\r\nThread[0] start\r\nThread[1] start\r\nThread[2] sleep 300ms\r\nThread[1] sleep 200ms\r\nThread[0] sleep 100ms\r\nThread[0] awake\r\nThread[1] awake\r\nThread[2] awake\r\nThread[0] end\r\nThread[1] end\r\nThread[2] end\r\n<\/code><\/pre>\n
                                                                                                Thread[0] \u3084 Thread[1] \u306f Thread[2] \u3088\u308a\u77ed\u3044\u6642\u9593\u3060\u3051\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u666e\u901a\u306a\u3089\u5148\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u7d42\u4e86\u3059\u308b\u306f\u305a\u304c\u3001\u5b9f\u969b\u306b\u306f Thread[2] \u306e\u7d42\u4e86\u3092\u5f85\u6a5f\u3057\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308b<\/p>\n
                                                                                                CyclicBarrier \u3092\u4f7f\u3046\u3068\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u3042\u308b\u3068\u3053\u308d\u307e\u3067\u63c3\u3046\u306e\u3092\u5f85\u6a5f\u3055\u305b\u308b\u3088\u3046\u306a\u5236\u5fa1\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b
                                                                                                \n\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u8db3\u4e26\u307f\u3092\u63c3\u3048\u305f\u3044\u30b9\u30ec\u30c3\u30c9\uff08\u30d1\u30fc\u30c6\u30a3\uff09\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b<\/p>\n
                                                                                                await \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001 await \u3092\u547c\u3093\u3060\u30b9\u30ec\u30c3\u30c9\u306e\u6570\u304c\u30d1\u30fc\u30c6\u30a3\u6570\u306b\u9054\u3059\u308b\u307e\u3067\u547c\u3073\u51fa\u3057\u5143\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b<\/p>\n
                                                                                                \u4e0a\u8a18\u4f8b\u3067\u306f\u30d1\u30fc\u30c6\u30a3\u6570\uff13\u3067\u521d\u671f\u5316\u3057\u3066\u3044\u308b\u306e\u3067\u3001\uff13\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089 await \u304c\u547c\u3070\u308c\u308b\u307e\u3067\u51e6\u7406\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b<\/p>\n
                                                                                                await \u306e\u547c\u3073\u51fa\u3057\u56de\u6570\u304c\u30d1\u30fc\u30c6\u30a3\u6570\u306b\u9054\u3059\u308b\u3068\u3001\u30d6\u30ed\u30c3\u30af\u304c\u89e3\u653e\u3055\u308c\u3066\u305d\u308c\u307e\u3067\u5f85\u6a5f\u3057\u3066\u3044\u305f\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u4e00\u6589\u306b\u518d\u958b\u3055\u308c\u308b<\/p>\n
                                                                                                \u8fdb\u884c\u518d\u5229\u7528<\/p>\n
                                                                                                package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.CyclicBarrier<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> CyclicBarrierTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> CyclicBarrier<\/span> barrier<\/span> =<\/span> new<\/span> CyclicBarrier<\/span>(<\/span>2<\/span>);<\/span>\r\n\r\n        program<\/span>(<\/span>barrier<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"=====\"<\/span>);<\/span>\r\n        program<\/span>(<\/span>barrier<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    private<\/span> static<\/span> void<\/span> program<\/span>(<\/span>CyclicBarrier<\/span> barrier<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread sleep\"<\/span>);<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>500<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread await\"<\/span>);<\/span>\r\n            barrier<\/span>.<\/span>await<\/span>();<\/span>\r\n        });<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Main await\"<\/span>);<\/span>\r\n        barrier<\/span>.<\/span>await<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Main restart\"<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                  \n
                                                                                                • \n
                                                                                                    \u30d1\u30fc\u30c6\u30a3\u6570\uff12\u3067 CyclicBarrier \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                     <\/p>\n
                                                                                                      \n
                                                                                                    • \n
                                                                                                        \u5225\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3066\u5c11\u3057\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089 await \u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                         <\/p>\n
                                                                                                          \n
                                                                                                        • \n
                                                                                                            \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067\u306f\u3059\u3050\u306b await \u3092\u547c\u3093\u3067\u3001\u5225\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u6a5f\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                             <\/p>\n
                                                                                                              \n
                                                                                                            • \n
                                                                                                                \u3053\u306e\u51e6\u7406\u3092\uff12\u56de\u7e70\u308a\u8fd4\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                CyclicBarrier \u306f\u3001\uff12\u56de\u3068\u3082\u540c\u3058\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                Main await\r\nThread sleep\r\nThread await\r\nMain restart\r\n=====\r\nMain await\r\nThread sleep\r\nThread await\r\nMain restart\r\n<\/code><\/pre>\n
                                                                                                                await \u306e\u547c\u3073\u51fa\u3057\u56de\u6570\u304c\u30d1\u30fc\u30c6\u30a3\u6570\u306b\u9054\u3059\u308b\u3068\u3001 CyclicBarrier \u306e\u72b6\u614b\u306f\u521d\u671f\u72b6\u614b\u306b\u623b\u308b<\/p>\n
                                                                                                                \u3053\u306e\u305f\u3081\u3001 CyclicBarrier \u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u518d\u5229\u7528\u304c\u3067\u304d\u308b
                                                                                                                \n\u540d\u524d\u306b cyclic (\u5faa\u74b0\u5f0f) \u304c\u3064\u3044\u3066\u3044\u308b\u7406\u7531<\/p>\n
                                                                                                                \u5f53\u7b49\u5f85\u503c\u8fbe\u5230\u6307\u5b9a\u7684\u6570\u91cf\u65f6\uff0c\u63d2\u5165\u5904\u7406\u7a0b\u5e8f\u3002<\/p>\n
                                                                                                                package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.CyclicBarrier<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> CyclicBarrierTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> CyclicBarrier<\/span> barrier<\/span> =<\/span> new<\/span> CyclicBarrier<\/span>(<\/span>4<\/span>,<\/span> ()<\/span> -><\/span> {<\/span>\r\n            String<\/span> name<\/span> =<\/span> Thread<\/span>.<\/span>currentThread<\/span>().<\/span>getName<\/span>();<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> name<\/span> +<\/span> \"] Tripped!\"<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>4<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            int<\/span> time<\/span> =<\/span> 100<\/span> *<\/span> (<\/span>i<\/span>+<\/span>1<\/span>);<\/span>\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                String<\/span> name<\/span> =<\/span> Thread<\/span>.<\/span>currentThread<\/span>().<\/span>getName<\/span>();<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> name<\/span> +<\/span> \"] sleep \"<\/span> +<\/span> time<\/span> +<\/span> \"ms\"<\/span>);<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>time<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"[\"<\/span> +<\/span> name<\/span> +<\/span> \"] await\"<\/span>);<\/span>\r\n                barrier<\/span>.<\/span>await<\/span>();<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                  \n
                                                                                                                • \n
                                                                                                                    \u30d1\u30fc\u30c6\u30a3\u6570\uff14\u3067 CyclicBarrier \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                     <\/p>\n
                                                                                                                      \n
                                                                                                                    • \n
                                                                                                                        \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u7b2c\u4e8c\u5f15\u6570\u306b Runnable \u3092\u6e21\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                         <\/p>\n
                                                                                                                          \u30b9\u30ec\u30c3\u30c9\u3092\uff14\u3064\u751f\u6210\u3057\u3001\u305d\u308c\u305e\u308c\u5c11\u3057\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089 await \u3067\u5f85\u6a5f\u3057\u3066\u3044\u308b<\/ul>\n
                                                                                                                          [Thread-3] sleep 400ms\r\n[Thread-1] sleep 200ms\r\n[Thread-0] sleep 100ms\r\n[Thread-2] sleep 300ms\r\n[Thread-0] await\r\n[Thread-1] await\r\n[Thread-2] await\r\n[Thread-3] await\r\n[Thread-3] Tripped!\r\n<\/code><\/pre>\n
                                                                                                                            \n
                                                                                                                          • \n
                                                                                                                              \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u7b2c\u4e8c\u5f15\u6570\u306b\u306f Runnable \u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                               <\/p>\n
                                                                                                                                \n
                                                                                                                              • \n
                                                                                                                                  \u3053\u306e Runnable \u306f\u3001 await \u306e\u547c\u3073\u51fa\u3057\u56de\u6570\u304c\u30d1\u30fc\u30c6\u30a3\u6570\u306b\u9054\u3057\u3066\u51e6\u7406\u304c\u518d\u958b\u3055\u308c\u308b\u524d\u306b\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3055\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                  \u51e6\u7406\u304c\u518d\u958b\u3055\u308c\u308b\u3053\u3068\u3092\u30c8\u30ea\u30c3\u30d7(trip) \u3068\u547c\u3076
                                                                                                                                  \n\u307e\u305f\u3001\u3053\u306e\u30c8\u30ea\u30c3\u30d7\u6642\u306b\u547c\u3070\u308c\u308b\u51e6\u7406\u306e\u3053\u3068\u3092 \u30d0\u30ea\u30a2\u30fc\u30fb\u30a2\u30af\u30b7\u30e7\u30f3 \u3068\u547c\u3076<\/p>\n
                                                                                                                                  \u30c8\u30ea\u30c3\u30d7\u306e\u51e6\u7406\u306f\u3001\u30c8\u30ea\u30c3\u30d7\u306e\u30c8\u30ea\u30ac\u30fc\u3068\u306a\u3063\u305f await \u306e\u547c\u3073\u51fa\u3057\u3092\u884c\u3063\u305f\u30b9\u30ec\u30c3\u30c9\u3067\u884c\u308f\u308c\u308b<\/p>\n
                                                                                                                                  \u6545\u969c\u72b6\u6001<\/p>\n
                                                                                                                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.CyclicBarrier<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> CyclicBarrierTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> CyclicBarrier<\/span> barrier<\/span> =<\/span> new<\/span> CyclicBarrier<\/span>(<\/span>2<\/span>);<\/span>\r\n\r\n        Thread<\/span> th<\/span> =<\/span> runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            try<\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread await\"<\/span>);<\/span>\r\n                barrier<\/span>.<\/span>await<\/span>();<\/span>\r\n            }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"interrupted\"<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"broken = \"<\/span> +<\/span> barrier<\/span>.<\/span>isBroken<\/span>());<\/span>\r\n            }<\/span>\r\n        });<\/span>\r\n\r\n        Thread<\/span>.<\/span>sleep<\/span>(<\/span>500<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"interrupt thread\"<\/span>);<\/span>\r\n        th<\/span>.<\/span>interrupt<\/span>();<\/span>\r\n\r\n        Thread<\/span>.<\/span>sleep<\/span>(<\/span>500<\/span>);<\/span>\r\n        try<\/span> {<\/span>\r\n            barrier<\/span>.<\/span>await<\/span>();<\/span>\r\n        }<\/span> catch<\/span> (<\/span>BrokenBarrierException<\/span> e<\/span>)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"BrokenBarrierException: \"<\/span> +<\/span> e<\/span>.<\/span>getMessage<\/span>());<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                    \n
                                                                                                                                  • \n
                                                                                                                                      \u30d1\u30fc\u30c6\u30a3\u6570\uff12\u3067 CyclicBarrier \u3092\u751f\u6210\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                       <\/p>\n
                                                                                                                                        \n
                                                                                                                                      • \n
                                                                                                                                          \u5225\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3057\u3066 await \u3067\u5f85\u6a5f\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                          InterruptedException \u3092\u30ad\u30e3\u30c3\u30c1\u3057\u3066\u3001 isBroken \u3067 CyclicBarrier \u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                          \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067\u5c11\u3057\u5f85\u3063\u3066\u304b\u3089\u3001\u5225\u8d77\u52d5\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u3092\u884c\u3046<\/p>\n
                                                                                                                                          Thread await\r\ninterrupt thread\r\ninterrupted\r\nbroken = true\r\nBrokenBarrierException: null\r\n<\/code><\/pre>\n
                                                                                                                                            \n
                                                                                                                                          • \n
                                                                                                                                              \u7279\u5b9a\u306e\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u308b\u3068\u3001 CyclicBarrier \u306f\u6545\u969c\u72b6\u614b\u306b\u306a\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                               <\/p>\n
                                                                                                                                                \n
                                                                                                                                              • \n
                                                                                                                                                  \u6545\u969c\u72b6\u614b\u306b\u306a\u308b\u6761\u4ef6\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u304c\u3042\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                  await \u4e2d\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307e\u308c\u305f\u5834\u5408\uff08\u4e0a\u8a18\u5b9f\u88c5\u4f8b\u306e\u30b1\u30fc\u30b9\uff09<\/p>\n
                                                                                                                                                  await(long, TimeUnit) \u3067\u306e\u5f85\u6a5f\u3067\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306b\u306a\u3063\u305f\u5834\u5408
                                                                                                                                                  \n\u30d0\u30ea\u30a2\u30fc\u30fb\u30a2\u30af\u30b7\u30e7\u30f3\u3067\u4f8b\u5916\u304c\u30b9\u30ed\u30fc\u3055\u308c\u305f\u5834\u5408<\/p>\n
                                                                                                                                                  CyclicBarrier \u304c\u6545\u969c\u72b6\u614b\u304b\u3069\u3046\u304b\u306f\u3001 isBroken \u30e1\u30bd\u30c3\u30c9\u3067\u78ba\u8a8d\u3067\u304d\u308b
                                                                                                                                                  \n\u6545\u969c\u72b6\u614b\u306e CyclicBarrier \u306b\u5bfe\u3057\u3066 await \u3092\u547c\u3076\u3068\u3001 BrokenBarrierException \u304c\u30b9\u30ed\u30fc\u3055\u308c\u308b<\/p>\n
                                                                                                                                                  \u91cd\u7f6e\u6545\u969c\u72b6\u6001<\/p>\n
                                                                                                                                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.BrokenBarrierException<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.CyclicBarrier<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.TimeUnit<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.TimeoutException<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> CyclicBarrierTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> CyclicBarrier<\/span> barrier<\/span> =<\/span> new<\/span> CyclicBarrier<\/span>(<\/span>2<\/span>);<\/span>\r\n\r\n        try<\/span> {<\/span>\r\n            barrier<\/span>.<\/span>await<\/span>(<\/span>1<\/span>,<\/span> TimeUnit<\/span>.<\/span>MICROSECONDS<\/span>);<\/span>\r\n        }<\/span> catch<\/span> (<\/span>TimeoutException<\/span> e<\/span>)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"timeout\"<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"broken = \"<\/span> +<\/span> barrier<\/span>.<\/span>isBroken<\/span>());<\/span>\r\n        barrier<\/span>.<\/span>reset<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"broken = \"<\/span> +<\/span> barrier<\/span>.<\/span>isBroken<\/span>());<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                    \n
                                                                                                                                                  • \n
                                                                                                                                                      \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3042\u308a\u3067 await \u3092\u547c\u3073\u51fa\u3059<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                      \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u3092\uff11\u30df\u30ea\u79d2\u306b\u3057\u3066\u5373\u5ea7\u306b\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3055\u305b\u308b\u3053\u3068\u3067\u30d0\u30ea\u30a2\u3092\u6545\u969c\u72b6\u614b\u306b\u3059\u308b<\/p>\n
                                                                                                                                                      reset \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u524d\u5f8c\u3067\u6545\u969c\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                      timeout\r\nbroken = true\r\nbroken = false\r\n<\/code><\/pre>\n
                                                                                                                                                      reset \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001\u6545\u969c\u72b6\u614b\u304c\u30af\u30ea\u30a2\u3055\u308c\u3066 CyclicBarrier \u304c\u521d\u671f\u72b6\u614b\u306b\u623b\u308b
                                                                                                                                                      \n\u521d\u671f\u72b6\u614b\u306b\u623b\u3063\u305f CyclicBarrier \u306f\u518d\u5229\u7528\u3067\u304d\u308b<\/p>\n
                                                                                                                                                      \u76f8\u4f4d\u8c03\u5236\u5668
                                                                                                                                                      \n\u4f7f\u7528 Phaser (\u30d5\u30a7\u30fc\u30b6\u30fc) \u80fd\u591f\u66f4\u7075\u6d3b\u5730\u8fdb\u884c\u4e0e CountDownLatch \u6216 CyclicBarrier \u76f8\u4f3c\u7684\u63a7\u5236\u3002
                                                                                                                                                      \n\u7279\u522b\u662f\u5728\u7ebf\u7a0b\u6570\u91cf\u9700\u8981\u52a8\u6001\u53d8\u5316\u7684\u60c5\u51b5\u4e0b\uff0c\u5b83\u7279\u522b\u6709\u7528\u3002<\/p>\n
                                                                                                                                                      package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Phaser<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> PhaserTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Phaser<\/span> phaser<\/span> =<\/span> new<\/span> Phaser<\/span>();<\/span>\r\n\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span> \/\/ main \u30b9\u30ec\u30c3\u30c9\u5206<\/span>\r\n\r\n        runThreads<\/span>(<\/span>phaser<\/span>,<\/span> 3<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"main await\"<\/span>);<\/span>\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"main restart\"<\/span>);<\/span>\r\n\r\n        Thread<\/span>.<\/span>sleep<\/span>(<\/span>1000<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"=====\"<\/span>);<\/span>\r\n\r\n        runThreads<\/span>(<\/span>phaser<\/span>,<\/span> 2<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"main await\"<\/span>);<\/span>\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"main restart\"<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    private<\/span> static<\/span> void<\/span> runThreads<\/span>(<\/span>Phaser<\/span> phaser<\/span>,<\/span> int<\/span> numberOfThreads<\/span>)<\/span> {<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>numberOfThreads<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            int<\/span> n<\/span> =<\/span> i<\/span>+<\/span>1<\/span>;<\/span>\r\n            String<\/span> name<\/span> =<\/span> \"Thread[\"<\/span> +<\/span> n<\/span> +<\/span> \"]\"<\/span>;<\/span>\r\n            int<\/span> time<\/span> =<\/span> 100<\/span> *<\/span> n<\/span>;<\/span>\r\n\r\n            phaser<\/span>.<\/span>register<\/span>();<\/span>\r\n\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" sleep \"<\/span> +<\/span> time<\/span> +<\/span> \"ms\"<\/span>);<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>time<\/span>);<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" awake\"<\/span>);<\/span>\r\n                phaser<\/span>.<\/span>arriveAndDeregister<\/span>();<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" end\"<\/span>);<\/span>\r\n            });<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                      runThreads \u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001\u5f15\u6570\u3067\u53d7\u3051\u53d6\u3063\u305f\u6570\u3060\u3051\u30b9\u30ec\u30c3\u30c9\u3092\u751f\u6210\u3057\u3066\u8d77\u52d5\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                      \u30b9\u30ec\u30c3\u30c9\u751f\u6210\u524d\u306b register \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3093\u3067\u3044\u308b
                                                                                                                                                      \n\u30b9\u30ec\u30c3\u30c9\u306e\u4e2d\u3067\u306f\u5c11\u3057\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u304b\u3089 arriveAndDeregister \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3093\u3067\u3044\u308b<\/p>\n
                                                                                                                                                      \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067\u306f\u6700\u521d\u306b register \u30e1\u30bd\u30c3\u30c9\u30921\u56de\u3060\u3051\u547c\u3093\u3067\u3044\u308b
                                                                                                                                                      \n\u305d\u306e\u5f8c\u3001 runThreads \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u304b\u3089 arriveAndAwaitAdvance \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u5f85\u6a5f\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                      \u3053\u306e\u30bb\u30c3\u30c8\u3092\u3001\u30b9\u30ec\u30c3\u30c9\u6570\u3092 3 -> 2 \u3068\u5909\u66f4\u3057\u3066\u5b9f\u884c\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                      main await\r\nThread[2] sleep 200ms\r\nThread[3] sleep 300ms\r\nThread[1] sleep 100ms\r\nThread[1] awake\r\nThread[1] end\r\nThread[2] awake\r\nThread[2] end\r\nThread[3] awake\r\nThread[3] end\r\nmain restart\r\n=====\r\nmain await\r\nThread[1] sleep 100ms\r\nThread[2] sleep 200ms\r\nThread[1] awake\r\nThread[1] end\r\nThread[2] awake\r\nThread[2] end\r\nmain restart\r\n<\/code><\/pre>\n
                                                                                                                                                        \n
                                                                                                                                                      • \n
                                                                                                                                                          \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u306f\u8907\u6570\u8d77\u52d5\u3057\u305f\u5225\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u5168\u3066\u7d42\u4e86\u3059\u308b\u307e\u3067\u5f85\u6a5f\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                          \u5225\u30b9\u30ec\u30c3\u30c9\u306e\u65b9\u306f\u5f85\u6a5f\u305b\u305a\u306b\u7d42\u4e86\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                          \uff11\u56de\u76ee\u306f\uff13\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u3063\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3066\u3001\uff12\u56de\u76ee\u306f\uff12\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u3063\u3066\u304a\u308a\u3001\u5f85\u6a5f\u3059\u308b\u30b9\u30ec\u30c3\u30c9\u306e\u6570\u304c\u52d5\u7684\u306b\u5909\u308f\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b<\/p>\n
                                                                                                                                                          Phaser\u7684\u57fa\u7840\u77e5\u8bc6<\/p>\n
                                                                                                                                                          \u6d3e\u5bf9\u7684\u6ce8\u518cPhaser \u306f\u3001 CyclicBarrier \u3068\u540c\u3058\u3067\u3001\u307e\u305a\u306f\u8db3\u4e26\u307f\u3092\u63c3\u3048\u308b\u30b9\u30ec\u30c3\u30c9\u306e\u6570\uff08\u30d1\u30fc\u30c6\u30a3\u6570\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/p>\n
                                                                                                                                                          CyclicBarrier \u306e\u5834\u5408\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5f15\u6570\u3067\u8a2d\u5b9a\u3057\u3066\u3044\u305f\u304c\u3001 Phaser \u306e\u5834\u5408\u306f register \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u52d5\u7684\u306b\u30d1\u30fc\u30c6\u30a3\u6570\u3092\u6307\u5b9a\u3067\u304d\u308b<\/p>\n
                                                                                                                                                          \u521d\u671f\u306e\u30d1\u30fc\u30c6\u30a3\u6570\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u3082\u6307\u5b9a\u3067\u304d\u308b<\/p>\n
                                                                                                                                                                  final<\/span> Phaser<\/span> phaser<\/span> =<\/span> new<\/span> Phaser<\/span>();<\/span>\r\n\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span> \/\/ main \u30b9\u30ec\u30c3\u30c9\u5206<\/span>\r\n\r\n        ...<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>numberOfThreads<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            ...<\/span>\r\n            phaser<\/span>.<\/span>register<\/span>();<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                          register \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3068\u3001\u30d1\u30fc\u30c6\u30a3\u6570\u304c\uff11\u3064\u52a0\u7b97\u3055\u308c\u308b<\/p>\n
                                                                                                                                                          \u5b9f\u88c5\u4f8b\u306e\u5192\u982d\u3067 register \u3092\u547c\u3093\u3067\u3044\u308b\u306e\u306f\u3001\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u5206\u3092\u767b\u9332\u3057\u3066\u3044\u308b
                                                                                                                                                          \n\u305d\u3057\u3066\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u8d77\u52d5\u3059\u308b\u30eb\u30fc\u30d7\u306e\u4e2d\u3067\u306f\u3001\u30eb\u30fc\u30d7\u306e\u90fd\u5ea6 register \u3092\u547c\u3076\u3053\u3068\u3067\u751f\u6210\u3055\u308c\u308b\u30b9\u30ec\u30c3\u30c9\u6570\u3068\u540c\u3058\u5206\u3060\u3051\u30d1\u30fc\u30c6\u30a3\u3092\u767b\u9332\u3057\u3066\u3044\u308b
                                                                                                                                                          \n\u3053\u308c\u306b\u3088\u308a\u3001\u300c\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\uff0b\u8d77\u52d5\u3059\u308b\u30b9\u30ec\u30c3\u30c9\u6570\u300d\u3060\u3051\u306e\u30d1\u30fc\u30c6\u30a3\u304c\u767b\u9332\u3055\u308c\u305f\u3053\u3068\u306b\u306a\u308b<\/p>\n
                                                                                                                                                          bulkRegister \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3048\u3070\u3001\u4e00\u5ea6\u306b\u8907\u6570\u306e\u30d1\u30fc\u30c6\u30a3\u3092\u767b\u9332\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b<\/p>\n
                                                                                                                                                          \u6d3e\u5bf9\u7684\u5230\u8fbe<\/p>\n
                                                                                                                                                            \n
                                                                                                                                                          • \n
                                                                                                                                                              \u767b\u9332\u3057\u305f\u30d1\u30fc\u30c6\u30a3\u306e\u51e6\u7406\u304c\u671f\u5f85\u3057\u305f\u5834\u6240\u307e\u3067\u5230\u9054\u3057\u305f\u5834\u5408\u3001\u305d\u308c\u3092 Phaser \u306b\u4f1d\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                              CountDownLatch \u306e countDown, await\u3001 CyclicBarrier \u306e await \u306b\u8a72\u5f53\u3059\u308b
                                                                                                                                                              \n\u3053\u308c\u3092 \u5230\u7740(arrive) \u3068\u547c\u3076<\/p>\n
                                                                                                                                                              \u5230\u7740\u3092\u4f1d\u3048\u308b\u30e1\u30bd\u30c3\u30c9\u306f\u3044\u304f\u3064\u304b\u3042\u308b\u304c\u3001\u5b9f\u88c5\u4f8b\u3067\u306f\u4ee5\u4e0b\uff12\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                              arriveAndDeregister<\/p>\n
                                                                                                                                                              \u5230\u7740\u3092 Phaser \u306b\u4f1d\u3048\u3001\u767b\u9332\u3057\u3066\u3044\u308b\u30d1\u30fc\u30c6\u30a3\u6570\u3092\uff11\u3064\u6e1b\u3089\u3059
                                                                                                                                                              \n\u547c\u3073\u51fa\u3057\u5143\u306e\u30b9\u30ec\u30c3\u30c9\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u306a\u3044<\/p>\n
                                                                                                                                                              arriveAndAwaitAdvance<\/p>\n
                                                                                                                                                              \u5230\u7740\u3092 Phaser \u306b\u4f1d\u3048\u3001\u4ed6\u306e\u30d1\u30fc\u30c6\u30a3\u304c\u5168\u3066\u5230\u7740\u3059\u308b\u307e\u3067\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b<\/p>\n
                                                                                                                                                                      ...<\/span>\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"main restart\"<\/span>);<\/span>\r\n\r\n        ...<\/span>\r\n\r\n            runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n                ...<\/span>\r\n                phaser<\/span>.<\/span>arriveAndDeregister<\/span>();<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span> +<\/span> \" end\"<\/span>);<\/span>\r\n            });<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                                \n
                                                                                                                                                              • \n
                                                                                                                                                                  \u5b9f\u88c5\u4f8b\u3067\u306f\u3001\u52d5\u7684\u306b\u8d77\u52d5\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u306f arriveAndDeregister \u3092\u4f7f\u3046\u3088\u3046\u306b\u3057\u3066\u3044\u305f\u306e\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3068\u3068\u3082\u306b\u30d1\u30fc\u30c6\u30a3\u306e\u6570\u304c\uff11\u3064\u6e1b\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                  \u3053\u308c\u306b\u3088\u308a\u3001\uff11\u56de\u76ee\u306b\uff13\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u6a5f\u3057\u7d42\u3048\u305f\u6bb5\u968e\u3067\u30d1\u30fc\u30c6\u30a3\u6570\u306f\uff112\u306b\u623b\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b
                                                                                                                                                                  \n\u3053\u306e\u304a\u304b\u3052\u3067\u3001\uff12\u56de\u76ee\u306f\u6539\u3081\u3066 register \u3092\u4f7f\u3063\u3066\u65b0\u3057\u3044\u30d1\u30fc\u30c6\u30a3\u6570\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b<\/p>\n
                                                                                                                                                                  \u9636\u6bb5<\/p>\n
                                                                                                                                                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Phaser<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> PhaserTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Phaser<\/span> phaser<\/span> =<\/span> new<\/span> Phaser<\/span>();<\/span>\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span> \/\/ main \u30b9\u30ec\u30c3\u30c9\u5206<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"phase = \"<\/span> +<\/span> phaser<\/span>.<\/span>getPhase<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"phase = \"<\/span> +<\/span> phaser<\/span>.<\/span>getPhase<\/span>());<\/span>\r\n\r\n        runThreads<\/span>(<\/span>phaser<\/span>,<\/span> 1<\/span>);<\/span>\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"phase = \"<\/span> +<\/span> phaser<\/span>.<\/span>getPhase<\/span>());<\/span>\r\n    }<\/span>\r\n\r\n    private<\/span> static<\/span> void<\/span> runThreads<\/span>(<\/span>Phaser<\/span> phaser<\/span>,<\/span> int<\/span> numberOfThreads<\/span>)<\/span> {<\/span>\r\n        ...<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                                  phase = 0\r\nphase = 1\r\nThread[1] sleep 100ms\r\nThread[1] awake\r\nThread[1] end\r\nphase = 2\r\n<\/code><\/pre>\n
                                                                                                                                                                  Phaser \u306b\u306f\u30d5\u30a7\u30fc\u30ba(phase)\u3068\u547c\u3070\u308c\u308b\u72b6\u614b\u304c\u5b58\u5728\u3059\u308b
                                                                                                                                                                  \n\u30d5\u30a7\u30fc\u30ba\u306f\uff10\u304b\u3089\u59cb\u307e\u308a\u3001\u73fe\u5728\u306e\u30d5\u30a7\u30fc\u30ba\u3067\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30d1\u30fc\u30c6\u30a3\u304c\u5168\u3066\u5230\u7740\u3059\u308b\u3068\uff11\u3064\u9032\u3080(advance)
                                                                                                                                                                  \n\u30d5\u30a7\u30fc\u30ba\u304c\u9032\u3080\u3068\u5230\u7740\u3057\u3066\u3044\u308b\u30d1\u30fc\u30c6\u30a3\u6570\u306f\uff10\u306b\u30ea\u30bb\u30c3\u30c8\u3055\u308c\u308b\u306e\u3067\u3001 CyclicBarrier \u3068\u540c\u3058\u3088\u3046\u306b\u518d\u5229\u7528\u304c\u3067\u304d\u308b
                                                                                                                                                                  \n\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\u306f Integer.MAX_VALUE \u306b\u9054\u3059\u308b\u3068\uff10\u306b\u623b\u308b<\/p>\n
                                                                                                                                                                  \u63a7\u5236\u5230\u8fbe\u7684\u65b9\u6cd5Phaser\u63d0\u4f9b\u4e86\u591a\u4e2a\u63a7\u5236\u5230\u8fbe\u7684\u65b9\u6cd5\u3002<\/p>\n
                                                                                                                                                                  \u6574\u7406\u4ee5\u4e0b\u662f\u7c97\u7565\u533a\u5206\u529f\u80fd\u5dee\u5f02\u3002<\/p>\n
                                                                                                                                                                  \n
                                                                                                                                                                  \u30e1\u30bd\u30c3\u30c9\u5230\u7740\u901a\u77e5\u30d6\u30ed\u30c3\u30af\u30d1\u30fc\u30c6\u30a3\u89e3\u9664IntrruptedException\u30d5\u30a7\u30fc\u30ba\u306e\u6307\u5b9aarrive<\/code>YesNoNoNoNoarriveAndAwaitAdvance<\/code>YesYesNoNoNoarriveAndDeregister<\/code>YesNoYesNoNoawaitAdvance<\/code>NoYesNoNoYesawaitAdvanceInterruptibly<\/code>NoYesNoYesYes\u5173\u4e8e\u6bcf\u79cd\u7528\u6cd5\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u89c1\u4ee5\u4e0b\u8bf4\u660e\u3002<\/p>\n
                                                                                                                                                                  \u5230\u8fbearrive \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5230\u7740\u3092\u901a\u77e5\u3057\u3066\u3059\u3050\u306b\u547c\u3073\u51fa\u3057\u5143\u306b\u51e6\u7406\u3092\u623b\u3059
                                                                                                                                                                  \n\u30d1\u30fc\u30c6\u30a3\u306e\u89e3\u9664\u3082\u884c\u308f\u306a\u3044\u306e\u3067\u3001\u5230\u7740\u3092\u901a\u77e5\u3057\u305f\u3044\u3060\u3051\u306e\u5834\u5408\u306b\u5229\u7528\u3059\u308b<\/p>\n
                                                                                                                                                                  CountDownLatch \u306e countDown \u30e1\u30bd\u30c3\u30c9\u307f\u305f\u3044\u306a\u5f79\u5272\u306b\u306a\u308b
                                                                                                                                                                  \n\u623b\u308a\u5024\u3068\u3057\u3066\u3001\u73fe\u5728\u306e\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\uff08\u5230\u7740\u3057\u305f\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\uff09\u304c\u8fd4\u3055\u308c\u308b<\/p>\n
                                                                                                                                                                  \u5230\u8fbe\u5e76\u7b49\u5f85\u524d\u8fdbarriveAndAwaitAdvance \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5230\u7740\u3092\u901a\u77e5\u3057\u3066\u4ed6\u306e\u30d1\u30fc\u30c6\u30a3\u304c\u5168\u3066\u5230\u7740\u3059\u308b\u307e\u3067\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b
                                                                                                                                                                  \n\u30d6\u30ed\u30c3\u30af\u4e2d\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307e\u308c\u3066\u3082\u3001\u30d6\u30ed\u30c3\u30af\u306f\u7d99\u7d9a\u3055\u308c\u308b
                                                                                                                                                                  \n\u30d1\u30fc\u30c6\u30a3\u306e\u89e3\u9664\u306f\u884c\u308f\u306a\u3044
                                                                                                                                                                  \n\u623b\u308a\u5024\u3068\u3057\u3066\u3001\u73fe\u5728\u306e\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\uff08\u5230\u7740\u3057\u305f\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\uff09\u304c\u8fd4\u3055\u308c\u308b<\/p>\n
                                                                                                                                                                  \u62b5\u8fbe\u5e76\u6ce8\u9500arriveAndDeregister \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5230\u7740\u3092\u901a\u77e5\u3057\u3066\u30d1\u30fc\u30c6\u30a3\u3092\u89e3\u9664\u3057\u305f\u306e\u3061\u3001\u3059\u3050\u306b\u547c\u3073\u51fa\u3057\u5143\u306b\u51e6\u7406\u3092\u623b\u3059
                                                                                                                                                                  \n\u623b\u308a\u5024\u3068\u3057\u3066\u3001\u73fe\u5728\u306e\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\uff08\u5230\u7740\u3057\u305f\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\uff09\u304c\u8fd4\u3055\u308c\u308b<\/p>\n
                                                                                                                                                                  \u7b49\u5f85\u63a8\u8fdbawaitAdvance \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5230\u7740\u306f\u901a\u77e5\u305b\u305a\u4ed6\u306e\u30d1\u30fc\u30c6\u30a3\u304c\u5168\u3066\u5230\u7740\u3059\u308b\u307e\u3067\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b
                                                                                                                                                                  \n\u30d6\u30ed\u30c3\u30af\u4e2d\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307e\u308c\u3066\u3082\u3001\u30d6\u30ed\u30c3\u30af\u306f\u7d99\u7d9a\u3055\u308c\u308b
                                                                                                                                                                  \n\u5f15\u6570\u306b\u73fe\u5728\u306e\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\u3092\u6e21\u3059\u5fc5\u8981\u304c\u3042\u308b<\/p>\n
                                                                                                                                                                  \u30d5\u30a7\u30fc\u30ba\u756a\u53f7\u304c\u73fe\u5728\u306e\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\u3068\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u3059\u3050\u306b\u51e6\u7406\u3092\u623b\u3059<\/p>\n
                                                                                                                                                                  phaser.awaitAdvance(phaser.arriveAndDeregister()) \u306e\u3088\u3046\u306b\u3001\u5230\u7740\u3092\u901a\u77e5\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u60f3\u5b9a\u3055\u308c\u3066\u3044\u308b<\/p>\n
                                                                                                                                                                  \u3053\u306e\u5834\u5408\u3001\u30d1\u30fc\u30c6\u30a3\u3092\u89e3\u9664\u3057\u305f\u3046\u3048\u3067\u30d5\u30a7\u30fc\u30ba\u306e\u7d42\u4e86\u3092\u5f85\u6a5f\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b<\/p>\n
                                                                                                                                                                  phaser.awaitAdvance(phaser.arrive()) \u306f arriveAndAwaitAdvance() \u3068\u7b49\u4fa1<\/p>\n
                                                                                                                                                                  \u623b\u308a\u5024\u3068\u3057\u3066\u3001\u6b21\u306e\u30d5\u30a7\u30fc\u30ba\u756a\u53f7\u304c\u8fd4\u3055\u308c\u308b<\/p>\n
                                                                                                                                                                  \u53ef\u4ee5\u963b\u585e\u5e76\u7b49\u5f85\u53ef\u4e2d\u65ad\u7684\u4efb\u52a1\u5230\u8fbe\u3002awaitAdvanceInterruptibly \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5230\u7740\u306f\u901a\u77e5\u305b\u305a\u4ed6\u306e\u30d1\u30fc\u30c6\u30a3\u304c\u5230\u7740\u3059\u308b\u307e\u3067\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b
                                                                                                                                                                  \n\u30d6\u30ed\u30c3\u30af\u4e2d\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307e\u308c\u308b\u3068\u3001 InterruptedException \u304c\u30b9\u30ed\u30fc\u3055\u308c\u308b
                                                                                                                                                                  \n\u5f15\u6570\u3084\u623b\u308a\u5024\u306f awaitAdvance \u3068\u540c\u3058<\/p>\n
                                                                                                                                                                  \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u3092\u6307\u5b9a\u3067\u304d\u308b\u30e1\u30bd\u30c3\u30c9\u3082\u5b58\u5728\u3059\u308b<\/p>\n
                                                                                                                                                                  \u7ec8\u6b62\u72b6\u6001<\/p>\n
                                                                                                                                                                  package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Phaser<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> PhaserTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Phaser<\/span> phaser<\/span> =<\/span> new<\/span> Phaser<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span> \/\/ main \u30b9\u30ec\u30c3\u30c9\u5206<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>arriveAndDeregister<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                                  terminated = false\r\nterminated = false\r\nterminated = false\r\nterminated = true\r\nterminated = true\r\n<\/code><\/pre>\n
                                                                                                                                                                    \n
                                                                                                                                                                  • \n
                                                                                                                                                                      \u30d5\u30a7\u30fc\u30ba\u304c\u6b21\u306b\u9032\u3093\u3060\u3068\u304d\u306b\u30d1\u30fc\u30c6\u30a3\u304c\uff10\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001 Phaser \u306f\u7d42\u4e86\u72b6\u614b(termination state) \u306b\u306a\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                       <\/p>\n
                                                                                                                                                                        \n
                                                                                                                                                                      • \n
                                                                                                                                                                          \u7d42\u4e86\u72b6\u614b\u306b\u306a\u308b\u3068 Phaser \u306f\u4f7f\u3048\u306a\u304f\u306a\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                          \u3059\u3079\u3066\u306e\u540c\u671f\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5f85\u6a5f\u305b\u305a\u306b\u3059\u3050\u306b\u623b\u308b\u3088\u3046\u306b\u306a\u308b<\/p>\n
                                                                                                                                                                          register \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3082\u30d1\u30fc\u30c6\u30a3\u306f\u767b\u9332\u3067\u304d\u306a\u304f\u306a\u308b<\/p>\n
                                                                                                                                                                          \u4fee\u6539\u8fbe\u5230\u7ec8\u6b62\u72b6\u6001\u7684\u6761\u4ef6<\/p>\n
                                                                                                                                                                          package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Phaser<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> PhaserTest<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Phaser<\/span> phaser<\/span> =<\/span> new<\/span> Phaser<\/span>()<\/span> {<\/span>\r\n            @Override<\/span>\r\n            protected<\/span> boolean<\/span> onAdvance<\/span>(<\/span>int<\/span> phase<\/span>,<\/span> int<\/span> registeredParties<\/span>)<\/span> {<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"onAdvance phase=\"<\/span> +<\/span> phase<\/span> +<\/span> \", registeredParties=\"<\/span> +<\/span> registeredParties<\/span>);<\/span>\r\n                return<\/span> false<\/span>;<\/span>\r\n            }<\/span>\r\n        };<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span> \/\/ main \u30b9\u30ec\u30c3\u30c9\u5206<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>arriveAndAwaitAdvance<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>arriveAndDeregister<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n\r\n        phaser<\/span>.<\/span>register<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"terminated = \"<\/span> +<\/span> phaser<\/span>.<\/span>isTerminated<\/span>());<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                                          Phaser \u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3067 onAdvance \u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3001\u5e38\u306b false \u3092\u8fd4\u3059\u3088\u3046\u306b\u5b9f\u88c5\u3057\u3066\u3044\u308b<\/p>\n
                                                                                                                                                                          terminated = false\r\nterminated = false\r\nonAdvance phase=0, registeredParties=1\r\nterminated = false\r\nonAdvance phase=1, registeredParties=0\r\nterminated = false\r\nterminated = false\r\n<\/code><\/pre>\n
                                                                                                                                                                          onAdvance \u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3066\u623b\u308a\u5024\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001\u7d42\u4e86\u72b6\u614b\u306b\u306a\u308b\u6761\u4ef6\u3092\u4efb\u610f\u306e\u3082\u306e\u306b\u5909\u66f4\u3067\u304d\u308b<\/p>\n
                                                                                                                                                                          onAdvance \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30d5\u30a7\u30fc\u30ba\u304c\u6b21\u306b\u9032\u3080\u3068\u304d\u306b\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3055\u308c\u308b<\/p>\n
                                                                                                                                                                          \u30d5\u30a7\u30fc\u30ba\u304c\u5909\u308f\u308b\u3068\u304d\u306b\u4efb\u610f\u306e\u51e6\u7406\u3092\u5b9f\u884c\u3057\u305f\u3044\u5834\u5408\u3082\u5229\u7528\u3067\u304d\u308b<\/p>\n
                                                                                                                                                                          \u3053\u306e\u30e1\u30bd\u30c3\u30c9\u304c true \u3092\u8fd4\u3059\u3068\u3001 Phaser \u306f\u7d42\u4e86\u72b6\u614b\u306b\u306a\u308b<\/p>\n
                                                                                                                                                                          \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3067\u306f\u3001\u5f15\u6570\u3067\u53d7\u3051\u53d6\u308b registeredParties (\u767b\u9332\u3055\u308c\u305f\u30d1\u30fc\u30c6\u30a3\u306e\u6570)\u304c\uff10\u3067\u3042\u308c\u3070 true \u3092\u8fd4\u3059\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b<\/p>\n
                                                                                                                                                                          false \u3092\u8fd4\u3059\u3088\u3046\u306b\u5b9f\u88c5\u3059\u308c\u3070\u7d42\u4e86\u72b6\u614b\u306b\u306f\u306a\u3089\u306a\u3044<\/p>\n
                                                                                                                                                                          \u4ea4\u6362\u8005
                                                                                                                                                                          \n\u5f53\u9700\u8981\u5728\u4e24\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u540c\u6b65\u5904\u7406\u5e76\u8fdb\u884c\u503c\u7684\u4ea4\u6362\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u201cExchanger\u201d\u3002<\/p>\n
                                                                                                                                                                          package<\/span> synchronizer<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.Exchanger<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> ExchangerTest<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        final<\/span> Exchanger<\/span><<\/span>String<\/span>><\/span> exchanger<\/span> =<\/span> new<\/span> Exchanger<\/span><>();<\/span>\r\n\r\n        runThread<\/span>(()<\/span> -><\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread sleep\"<\/span>);<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>500<\/span>);<\/span>\r\n            String<\/span> receive<\/span> =<\/span> exchanger<\/span>.<\/span>exchange<\/span>(<\/span>\"from Thread\"<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Thread receive=\"<\/span> +<\/span> receive<\/span>);<\/span>\r\n        });<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Main exchange\"<\/span>);<\/span>\r\n        final<\/span> String<\/span> receive<\/span> =<\/span> exchanger<\/span>.<\/span>exchange<\/span>(<\/span>\"from Main\"<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Main receive=\"<\/span> +<\/span> receive<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                                                                                                                                            \n
                                                                                                                                                                          • \n
                                                                                                                                                                              \u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3068\u5225\u30b9\u30ec\u30c3\u30c9\u306e\u53cc\u65b9\u3067 exchange \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u3001\u623b\u308a\u5024\u3092\u51fa\u529b\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                               <\/p>\n
                                                                                                                                                                                \u5225\u30b9\u30ec\u30c3\u30c9\u306e\u65b9\u306f\u3001\u5192\u982d\u3067\u5c11\u3057\u3060\u3051\u30b9\u30ea\u30fc\u30d7\u3057\u3066\u3044\u308b<\/ul>\n
                                                                                                                                                                                Main exchange\r\nThread sleep\r\nThread receive=from Main\r\nMain receive=from Thread\r\n<\/code><\/pre>\n
                                                                                                                                                                                  \n
                                                                                                                                                                                • \n
                                                                                                                                                                                    \u5225\u30b9\u30ec\u30c3\u30c9\u304c exchange \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u307e\u3067\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u304c\u5f85\u6a5f\u3057\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                     <\/p>\n
                                                                                                                                                                                      \n
                                                                                                                                                                                    • \n
                                                                                                                                                                                        \u7247\u65b9\u304c exchange \u306e\u5f15\u6570\u306b\u6e21\u3057\u305f\u5024\u304c\u3001\u4ed6\u65b9\u306e exchange \u306e\u623b\u308a\u5024\u3068\u3057\u3066\u8fd4\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                        Exchanger \u3092\u4f7f\u3046\u3068\u3001 exchange \u3067\u51e6\u7406\u3092\u540c\u671f\u3057\u3064\u3064\u3001\u4efb\u610f\u306e\u5024\u3092\u53cc\u65b9\u3067\u6e21\u3057\u5408\u3046\u3088\u3046\u306a\u5236\u5fa1\u304c\u3067\u304d\u308b<\/p>\n
                                                                                                                                                                                        \u5404\u79cd\u540c\u6b65\u5668\u7684\u4f7f\u7528\u533a\u522b<\/p>\n
                                                                                                                                                                                        \u56e0\u4e3a\u8fd9\u4ec5\u4ec5\u662f\u6839\u636e\u4e2a\u4eba\u7684\u60f3\u6cd5\u63cf\u7ed8\u51fa\u6765\u7684\uff0c\u6240\u4ee5\u5b58\u5728\u53ef\u80fd\u51fa\u9519\u7684\u60c5\u51b5\u3002<\/p>\n
                                                                                                                                                                                        \u3010\u30b9\u30ec\u30c3\u30c9\u6570\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\uff1f\u3011---{No}--->\u3010\u30b9\u30ec\u30c3\u30c9\u6570\u304c\u6c7a\u307e\u308b\u307e\u3067\u5f85\u3066\u308b\uff1f\u3011\r\n   |                                             |\r\n {Yes}                                           |\r\n   |                                             |\r\n   + <-------------------{Yes}-------------------+---{No}---> [Phaser]\r\n   |\r\n   V\r\n\u3010\u30b9\u30ec\u30c3\u30c9\u6570\u304c\uff12\u3064\u3067\u3001\u5024\u306e\u3084\u308a\u53d6\u308a\u304c\u5fc5\u8981\uff1f\u3011---{Yes}---> [Exchanger]\r\n   |\r\n  {No}\r\n   |\r\n   V\r\n\u3010\u9650\u3089\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u306e\u53d6\u308a\u5408\u3044\u3092\u5236\u5fa1\u3057\u305f\u3044\uff1f\u3011---{Yes}---> [Semaphore]\r\n   |\r\n  {No}\r\n   |\r\n   V\r\n\u3010\u95a2\u9023\u3059\u308b\u5168\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u6240\u5b9a\u306e\u4f4d\u7f6e\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u5168\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u5f85\u6a5f\u3055\u305b\u305f\u3044\uff1f\u3011\r\n   |                            |\r\n  {No}                          +---{Yes}---> [CyclicBarrier]\r\n   |\r\n   V\r\n [CountDownLatch]\r\n<\/code><\/pre>\n
                                                                                                                                                                                        \u4ee5\u4e0b\u662f\u4e2a\u4eba\u89c2\u70b9\u6240\u4f9d\u636e\u7684\uff1a<\/p>\n
                                                                                                                                                                                          \n
                                                                                                                                                                                        • \n
                                                                                                                                                                                            \u30b9\u30ec\u30c3\u30c9\u6570\u304c\u6c7a\u307e\u3063\u3066\u3044\u308c\u3070 Phaser \u3067\u3067\u304d\u308b\u3053\u3068\u306f CyclicBarrier \u3084 CountDownLatch \u3067\u3082\u3067\u304d\u308b\u3068\u601d\u3046\u306e\u3067\u3001 Phaser \u3092\u4f7f\u3046\u304b\u3069\u3046\u304b\u306f\u30b9\u30ec\u30c3\u30c9\u6570\u304c\u6c7a\u307e\u308b\u307e\u3067\u51e6\u7406\u306e\u958b\u59cb\u3092\u5f85\u3066\u306a\u3044\u3088\u3046\u306a\u5834\u9762\u306a\u306e\u304b\u306a\u3068\u601d\u3063\u305f<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                            Exchanger \u3068 Semaphore \u306f\u5236\u5fa1\u304c\u7279\u5fb4\u7684\u306a\u306e\u3067\u3001\u7528\u9014\u306f\u9650\u5b9a\u7684\u306b\u306a\u308b\u306e\u304b\u306a\u3068\u601d\u3063\u305f<\/p>\n
                                                                                                                                                                                            CyclicBarrier \u3068 CountDownLatch \u306e\u5927\u304d\u306a\u9055\u3044\u306f\u4ee5\u4e0b\u304b\u306a\u3068\u601d\u3046<\/p>\n
                                                                                                                                                                                            CyclicBarrier \u306f\u3001\u30d1\u30fc\u30c6\u30a3\u306b\u5c5e\u3059\u308b\u5168\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u304c await \u3092\u547c\u3076\u307e\u3067\u3001\u30d1\u30fc\u30c6\u30a3\u306b\u5c5e\u3059\u308b\u5168\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5f85\u6a5f\u3059\u308b<\/p>\n
                                                                                                                                                                                            CountDownLatch \u306f\u3001 countDown \u304c\u6240\u5b9a\u306e\u56de\u6570\u547c\u3070\u308c\u308b\u307e\u3067 await \u3057\u3066\u3044\u308b\u30b9\u30ec\u30c3\u30c9\u3060\u3051\u304c\u5f85\u6a5f\u3059\u308b (countDown \u3092\u547c\u3093\u3060\u30b9\u30ec\u30c3\u30c9\u306f\u5f85\u305f\u306a\u304f\u3066\u3044\u3044)<\/p>\n
                                                                                                                                                                                            CyclicBarrier \u306f\u3001\u30d1\u30fc\u30c6\u30a3\u306b\u5c5e\u3059\u308b\u5168\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u6240\u5b9a\u306e\u5834\u6240\u306b\u63c3\u3046\u306e\u3092\u5f85\u3064\u3053\u3068\u304c\u76ee\u7684<\/p>\n
                                                                                                                                                                                            CountDownLatch \u306f\u3001\u5f85\u6a5f\u7d42\u4e86\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u706b\u3055\u308c\u308b\u307e\u30673\u30b9\u30ec\u30c3\u30c9\u3092\u5f85\u305f\u305b\u308b\u3053\u3068\u304c\u76ee\u7684<\/p>\n
                                                                                                                                                                                            \u8bf7\u53c2\u8003<\/p>\n
                                                                                                                                                                                              \n
                                                                                                                                                                                            • \n
                                                                                                                                                                                                Java\u4e26\u884c\u51e6\u7406\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 \u2015\u305d\u306e\u300c\u57fa\u76e4\u300d\u3068\u300c\u6700\u65b0API\u300d\u3092\u7a76\u3081\u308b\u2015 | Brian Goetz, Joshua Bloch, Doug Lea |\u672c | \u901a\u8ca9 | Amazon<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                 <\/p>\n
                                                                                                                                                                                                  \n
                                                                                                                                                                                                • \n
                                                                                                                                                                                                    CountDownLatch (Java SE 17 & JDK 17)<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                     <\/p>\n
                                                                                                                                                                                                      \n
                                                                                                                                                                                                    • \n
                                                                                                                                                                                                        CyclicBarrier (Java SE 17 & JDK 17)<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                         <\/p>\n
                                                                                                                                                                                                          \n
                                                                                                                                                                                                        • \n
                                                                                                                                                                                                            Semaphore (Java SE 17 & JDK 17)<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                             <\/p>\n
                                                                                                                                                                                                              \n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                Phaser (Java SE 17 & JDK 17)<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                                 <\/p>\n
                                                                                                                                                                                                                  Exchanger (Java SE 17 & JDK 17)<\/ul>\n
                                                                                                                                                                                                                  \u4e25\u683c\u6765\u8bf4\uff0c\u8fd9\u6bb5\u6587\u5b57\u662f\u5173\u4e8e\u89e3\u91ca acquire \u548c release \u4e0d\u9700\u8981\u5728\u540c\u4e00\u4e2a\u7ebf\u7a0b\u4e2d\u8c03\u7528\uff0c\u4f46\u662f\u6211\u7406\u89e3\u7684\u662f\u7ef4\u62a4\u8bb8\u53ef\u6570\u91cf\u7684\u63a7\u5236\u4e5f\u662f\u540c\u4e00\u4e2a\u4e3b\u9898\u3002\u21a9\u4e3b\u7ebf\u7a0b\u7684\u90e8\u5206\u8fd8\u5269\u4e0b\u3002\u21a9<\/p>\n
                                                                                                                                                                                                                  \u76f4\u5230\u8c03\u7528 countDown \u6307\u5b9a\u7684\u6b21\u6570\u4e3a\u6b62\u3002\u21a9<\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
                                                                                                                                                                                                                  \u540c\u6b65\u5668\u662f\u4ec0\u4e48\u3002\u4f7f\u7528\u81ea\u8eab\u7684\u72b6\u6001\u6765\u63a7\u5236\u7ebf\u7a0b\u8fdb\u7a0b\u7684\u5bf9\u8c61\u88ab\u79f0\u4e3a\u540c\u6b65\u5668\u3002 \u5047\u8bbe\u5b58\u5728\u4ee5\u4e0b\u5b9e\u73b0\u65b9\u6cd5\u3002 package syn […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31312","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\nJava\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8eJava\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/java\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8eJava\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java\u7684\u540c\u6b65\u5668\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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