{"id":3351,"date":"2022-06-21T15:27:29","date_gmt":"2022-06-21T07:27:29","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3351"},"modified":"2022-06-21T15:27:50","modified_gmt":"2022-06-21T07:27:50","slug":"%e7%ba%bf%e7%a8%8b%e6%b1%a0%e7%9f%a5%e8%af%86%e7%82%b9%e8%a1%a5%e5%85%85","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3351","title":{"rendered":"\u7ebf\u7a0b\u6c60\u77e5\u8bc6\u70b9\u8865\u5145"},"content":{"rendered":"\n

\u53c2\u8003\uff1a(28\u6761\u6d88\u606f) \u9762\u8bd5\u5fc5\u95ee\u7684\u7ebf\u7a0b\u6c60\uff0c\u4f60\u61c2\u4e86\u5417\uff1f_\u7a0b\u5e8f\u5458\u56e7\u8f89\u7684\u535a\u5ba2-CSDN\u535a\u5ba2<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u7ebf\u7a0b\u53ea\u80fd\u5728\u4efb\u52a1\u5230\u8fbe\u65f6\u624d\u542f\u52a8\u5417\uff1f<\/h2>\n\n\n\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5373\u4f7f\u662f\u6838\u5fc3\u7ebf\u7a0b\u4e5f\u53ea\u80fd\u5728\u65b0\u4efb\u52a1\u5230\u8fbe\u65f6\u624d\u521b\u5efa\u548c\u542f\u52a8\u3002\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 prestartCoreThread\uff08\u542f\u52a8\u4e00\u4e2a\u6838\u5fc3\u7ebf\u7a0b\uff09\u6216 prestartAllCoreThreads\uff08\u542f\u52a8\u5168\u90e8\u6838\u5fc3\u7ebf\u7a0b\uff09\u65b9\u6cd5\u6765\u63d0\u524d\u542f\u52a8\u6838\u5fc3\u7ebf\u7a0b\u3002<\/p>\n\n\n\n

\u6838\u5fc3\u7ebf\u7a0b\u600e\u4e48\u5b9e\u73b0\u4e00\u76f4\u5b58\u6d3b\uff1f<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u6838\u5fc3\u7ebf\u7a0b\u5728\u83b7\u53d6\u4efb\u52a1\u65f6\uff0c\u901a\u8fc7\u963b\u585e\u961f\u5217\u7684 take() \u65b9\u6cd5\u5b9e\u73b0\u7684\u4e00\u76f4\u963b\u585e\uff08\u5b58\u6d3b\uff09\u3002<\/p>\n\n\n\n

\u975e\u6838\u5fc3\u7ebf\u7a0b\u5982\u4f55\u5b9e\u73b0\u5728 keepAliveTime \u540e\u6b7b\u4ea1\uff1f<\/h2>\n\n\n\n

\u539f\u7406\u540c\u4e0a\uff0c\u4e5f\u662f\u5229\u7528\u963b\u585e\u961f\u5217\u7684\u65b9\u6cd5\uff0c\u5728\u83b7\u53d6\u4efb\u52a1\u65f6\u901a\u8fc7\u963b\u585e\u961f\u5217\u7684 poll(time,unit) \u65b9\u6cd5\u5b9e\u73b0\u7684\u5728\u5ef6\u8fdf\u6b7b\u4ea1\u3002<\/p>\n\n\n\n

\u975e\u6838\u5fc3\u7ebf\u7a0b\u80fd\u6210\u4e3a\u6838\u5fc3\u7ebf\u7a0b\u5417\uff1f<\/h2>\n\n\n\n

\u867d\u7136\u6211\u4eec\u4e00\u76f4\u8bb2\u7740\u6838\u5fc3\u7ebf\u7a0b\u548c\u975e\u6838\u5fc3\u7ebf\u7a0b\uff0c\u4f46\u662f\u5176\u5b9e\u7ebf\u7a0b\u6c60\u5185\u90e8\u662f\u4e0d\u533a\u5206\u6838\u5fc3\u7ebf\u7a0b\u548c\u975e\u6838\u5fc3\u7ebf\u7a0b\u7684\u3002\u53ea\u662f\u6839\u636e\u5f53\u524d\u7ebf\u7a0b\u6c60\u7684\u5de5\u4f5c\u7ebf\u7a0b\u6570\u6765\u8fdb\u884c\u8c03\u6574\uff0c\u56e0\u6b64\u770b\u8d77\u6765\u50cf\u662f\u6709\u6838\u5fc3\u7ebf\u7a0b\u4e8e\u975e\u6838\u5fc3\u7ebf\u7a0b\u3002<\/p>\n\n\n\n

\u7ec8\u6b62\u7ebf\u7a0b\u6c60\u4e3b\u8981\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<\/h2>\n\n\n\n

shutdown\uff1a\u201c\u6e29\u67d4\u201d\u7684\u5173\u95ed\u7ebf\u7a0b\u6c60\u3002\u4e0d\u63a5\u53d7\u65b0\u4efb\u52a1\uff0c\u4f46\u662f\u5728\u5173\u95ed\u524d\u4f1a\u5c06\u4e4b\u524d\u63d0\u4ea4\u7684\u4efb\u52a1\u5904\u7406\u5b8c\u6bd5\u3002<\/p>\n\n\n\n

shutdownNow\uff1a\u201c\u7c97\u66b4\u201d\u7684\u5173\u95ed\u7ebf\u7a0b\u6c60\uff0c\u4e5f\u5c31\u662f\u76f4\u63a5\u5173\u95ed\u7ebf\u7a0b\u6c60\uff0c\u901a\u8fc7 Thread#interrupt() \u65b9\u6cd5\u7ec8\u6b62\u6240\u6709\u7ebf\u7a0b\uff0c\u4e0d\u4f1a\u7b49\u5f85\u4e4b\u524d\u63d0\u4ea4\u7684\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5\u3002\u4f46\u662f\u4f1a\u8fd4\u56de\u961f\u5217\u4e2d\u672a\u5904\u7406\u7684\u4efb\u52a1\u3002<\/p>\n\n\n\n

\u7ebf\u7a0b\u6c60\u91cc\u6709\u4e2a\u00a0ctl\uff0c\u4f60\u77e5\u9053\u5b83\u662f\u5982\u4f55\u8bbe\u8ba1\u7684\u5417\uff1f<\/h2>\n\n\n\n

ctl \u662f\u4e00\u4e2a\u6253\u5305\u4e24\u4e2a\u6982\u5ff5\u5b57\u6bb5\u7684\u539f\u5b50\u6574\u6570\u3002<\/p>\n\n\n\n

1\uff09workerCount\uff1a\u6307\u793a\u7ebf\u7a0b\u7684\u6709\u6548\u6570\u91cf\uff1b<\/p>\n\n\n\n

2\uff09runState\uff1a\u6307\u793a\u7ebf\u7a0b\u6c60\u7684\u8fd0\u884c\u72b6\u6001\uff0c\u6709 RUNNING\u3001SHUTDOWN\u3001STOP\u3001TIDYING\u3001TERMINATED \u7b49\u72b6\u6001\u3002<\/p>\n\n\n\n

int \u7c7b\u578b\u670932\u4f4d\uff0c\u5176\u4e2d ctl \u7684\u4f4e29\u4e3a\u7528\u4e8e\u8868\u793a workerCount\uff0c\u9ad83\u4f4d\u7528\u4e8e\u8868\u793a runState\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u4f8b\u5982\uff0c\u5f53\u6211\u4eec\u7684\u7ebf\u7a0b\u6c60\u8fd0\u884c\u72b6\u6001\u4e3a RUNNING\uff0c\u5de5\u4f5c\u7ebf\u7a0b\u4e2a\u6570\u4e3a3\uff0c\u5219\u6b64\u65f6 ctl \u7684\u539f\u7801\u4e3a\uff1a1010 0000 0000 0000 0000 0000 0000 0011<\/p>\n\n\n\n

ctl \u8fd9\u4e48\u8bbe\u8ba1\u7684\u4e3b\u8981\u597d\u5904\u662f\u5c06\u5bf9 runState \u548c workerCount \u7684\u64cd\u4f5c\u5c01\u88c5\u6210\u4e86\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\u3002<\/p>\n\n\n\n

runState \u548c workerCount \u662f\u7ebf\u7a0b\u6c60\u6b63\u5e38\u8fd0\u8f6c\u4e2d\u76842\u4e2a\u6700\u91cd\u8981\u5c5e\u6027\uff0c\u7ebf\u7a0b\u6c60\u5728\u67d0\u4e00\u65f6\u523b\u8be5\u505a\u4ec0\u4e48\u64cd\u4f5c\uff0c\u53d6\u51b3\u4e8e\u8fd92\u4e2a\u5c5e\u6027\u7684\u503c\u3002<\/p>\n\n\n\n

\u56e0\u6b64\u65e0\u8bba\u662f\u67e5\u8be2\u8fd8\u662f\u4fee\u6539\uff0c\u6211\u4eec\u5fc5\u987b\u4fdd\u8bc1\u5bf9\u8fd92\u4e2a\u5c5e\u6027\u7684\u64cd\u4f5c\u662f\u5c5e\u4e8e\u201c\u540c\u4e00\u65f6\u523b\u201d\u7684\uff0c\u4e5f\u5c31\u662f\u539f\u5b50\u64cd\u4f5c\uff0c\u5426\u5219\u5c31\u4f1a\u51fa\u73b0\u9519\u4e71\u7684\u60c5\u51b5\u3002\u5982\u679c\u6211\u4eec\u4f7f\u75282\u4e2a\u53d8\u91cf\u6765\u5206\u522b\u5b58\u50a8\uff0c\u8981\u4fdd\u8bc1\u539f\u5b50\u6027\u5219\u9700\u8981\u989d\u5916\u8fdb\u884c\u52a0\u9501\u64cd\u4f5c\uff0c\u8fd9\u663e\u7136\u4f1a\u5e26\u6765\u989d\u5916\u7684\u5f00\u9500\uff0c\u800c\u5c06\u8fd92\u4e2a\u53d8\u91cf\u5c01\u88c5\u62101\u4e2a AtomicInteger \u5219\u4e0d\u4f1a\u5e26\u6765\u989d\u5916\u7684\u52a0\u9501\u5f00\u9500\uff0c\u800c\u4e14\u53ea\u9700\u4f7f\u7528\u7b80\u5355\u7684\u4f4d\u64cd\u4f5c\u5c31\u80fd\u5206\u522b\u5f97\u5230 runState \u548c workerCount\u3002<\/p>\n\n\n\n

\u7531\u4e8e\u8fd9\u4e2a\u8bbe\u8ba1\uff0cworkerCount \u7684\u4e0a\u9650 CAPACITY = (1 << 29) – 1\uff0c\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u539f\u7801\u4e3a\uff1a0001 1111 1111 1111 1111 1111 1111 1111\uff08\u4e0d\u7528\u6570\u4e86\uff0c29\u4e2a1\uff09\u3002<\/p>\n\n\n\n

\u901a\u8fc7 ctl \u5f97\u5230 runState\uff0c\u53ea\u9700\u901a\u8fc7\u4f4d\u64cd\u4f5c\uff1actl & ~CAPACITY\u3002<\/p>\n\n\n\n

~\uff08\u6309\u4f4d\u53d6\u53cd\uff09\uff0c\u4e8e\u662f\u201c~CAPACITY\u201d\u7684\u503c\u4e3a\uff1a1110 0000 0000 0000 0000 0000 0000 0000\uff0c\u53ea\u6709\u9ad83\u4f4d\u4e3a1\uff0c\u4e0e ctl \u8fdb\u884c & \u64cd\u4f5c\uff0c\u7ed3\u679c\u4e3a ctl \u9ad83\u4f4d\u7684\u503c\uff0c\u4e5f\u5c31\u662f runState\u3002<\/p>\n\n\n\n

\u901a\u8fc7 ctl \u5f97\u5230 workerCount \u5219\u66f4\u7b80\u5355\u4e86\uff0c\u53ea\u9700\u901a\u8fc7\u4f4d\u64cd\u4f5c\uff1ac & CAPACITY\u3002<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u53c2\u8003\uff1a(28\u6761\u6d88\u606f) \u9762\u8bd5\u5fc5\u95ee\u7684\u7ebf\u7a0b\u6c60\uff0c\u4f60\u61c2\u4e86\u5417\uff1f_\u7a0b\u5e8f\u5458\u56e7\u8f89\u7684\u535a\u5ba2-CSDN\u535a\u5ba2 \u7ebf\u7a0b\u53ea\u80fd\u5728\u4efb\u52a1\u5230\u8fbe\u65f6\u624d\u542f\u52a8 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[210,211],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3351"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3351"}],"version-history":[{"count":20,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3351\/revisions"}],"predecessor-version":[{"id":3375,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3351\/revisions\/3375"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}