{"id":660,"date":"2022-12-29T10:11:52","date_gmt":"2022-12-29T02:11:52","guid":{"rendered":"https:\/\/blog.lijiajia.top\/?p=660"},"modified":"2026-06-19T20:51:39","modified_gmt":"2026-06-19T12:51:39","slug":"bio-nio-aio%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/blog.ttwow.top\/?p=660","title":{"rendered":"BIO NIO AIO\u533a\u522b"},"content":{"rendered":"<p><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/112810033\"><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/112810033\">https:\/\/zhuanlan.zhihu.com\/p\/112810033<\/a><\/a><\/p>\n<\/p>\n<h2>\u4ecb\u7ecd<\/h2>\n<p>BIO \u5c31\u662f\u4f20\u7edf\u7684 java.io \u5305\uff0c\u5b83\u662f\u57fa\u4e8e\u6d41\u6a21\u578b\u5b9e\u73b0\u7684\uff0c\u4ea4\u4e92\u7684\u65b9\u5f0f\u662f\u540c\u6b65\u3001\u963b\u585e\u65b9\u5f0f\uff0c\u4e5f\u5c31\u662f\u8bf4\u5728\u8bfb\u5165\u8f93\u5165\u6d41\u6216\u8005\u8f93\u51fa\u6d41\u65f6\uff0c\u5728\u8bfb\u5199\u52a8\u4f5c\u5b8c\u6210\u4e4b\u524d\uff0c\u7ebf\u7a0b\u4f1a\u4e00\u76f4\u963b\u585e\u5728\u90a3\u91cc\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u8c03\u7528\u65f6\u53ef\u9760\u7684\u7ebf\u6027\u987a\u5e8f\u3002\u5b83\u7684\u6709\u70b9\u5c31\u662f\u4ee3\u7801\u6bd4\u8f83\u7b80\u5355\u3001\u76f4\u89c2\uff1b\u7f3a\u70b9\u5c31\u662f IO \u7684\u6548\u7387\u548c\u6269\u5c55\u6027\u5f88\u4f4e\uff0c\u5bb9\u6613\u6210\u4e3a\u5e94\u7528\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<p>NIO \u662f Java 1.4 \u5f15\u5165\u7684 java.nio \u5305\uff0c\u63d0\u4f9b\u4e86 Channel\u3001Selector\u3001Buffer \u7b49\u65b0\u7684\u62bd\u8c61\uff0c\u53ef\u4ee5\u6784\u5efa\u591a\u8def\u590d\u7528\u7684\u3001\u540c\u6b65\u975e\u963b\u585e IO \u7a0b\u5e8f\uff0c\u540c\u65f6\u63d0\u4f9b\u4e86\u66f4\u63a5\u8fd1\u64cd\u4f5c\u7cfb\u7edf\u5e95\u5c42\u9ad8\u6027\u80fd\u7684\u6570\u636e\u64cd\u4f5c\u65b9\u5f0f\u3002<\/p>\n<p>AIO \u662f Java 1.7 \u4e4b\u540e\u5f15\u5165\u7684\u5305\uff0c\u662f NIO \u7684\u5347\u7ea7\u7248\u672c\uff0c\u63d0\u4f9b\u4e86\u5f02\u6b65\u975e\u5835\u585e\u7684 IO \u64cd\u4f5c\u65b9\u5f0f\uff0c\u6240\u4ee5\u4eba\u4eec\u53eb\u5b83 AIO\uff08Asynchronous IO\uff09\uff0c\u5f02\u6b65 IO \u662f\u57fa\u4e8e\u4e8b\u4ef6\u548c\u56de\u8c03\u673a\u5236\u5b9e\u73b0\u7684\uff0c\u4e5f\u5c31\u662f\u5e94\u7528\u64cd\u4f5c\u4e4b\u540e\u4f1a\u76f4\u63a5\u8fd4\u56de\uff0c\u4e0d\u4f1a\u5835\u585e\u5728\u90a3\u91cc\uff0c\u5f53\u540e\u53f0\u5904\u7406\u5b8c\u6210\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u901a\u77e5\u76f8\u5e94\u7684\u7ebf\u7a0b\u8fdb\u884c\u540e\u7eed\u7684\u64cd\u4f5c\u3002<\/p>\n<h2>\u4e94\u79cdIO\u6a21\u578b<\/h2>\n<p>Linux\u4e0b\u7684\u4e94\u79cdI\/O\u6a21\u578b<\/p>\n<p>1)\u963b\u585eI\/O\uff08blocking I\/O\uff09<\/p>\n<p>2)\u975e\u963b\u585eI\/O \uff08nonblocking I\/O\uff09<\/p>\n<p>3) I\/O\u590d\u7528(select \u548cpoll) \uff08I\/O multiplexing\uff09<\/p>\n<p>4)\u4fe1\u53f7\u9a71\u52a8I\/O \uff08signal driven I\/O (SIGIO)\uff09<\/p>\n<p>5)\u5f02\u6b65I\/O \uff08asynchronous I\/O (the POSIX aio_functions)\uff09<br \/>\n\u524d\u9762\u56db\u79cd\u90fd\u662f\u540c\u6b65io\u3001\u7b2c\u4e94\u79cd\u662f\u5f02\u6b65IO\uff1b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/zhuanlan.zhihu.com\/p\/112810033 \u4ecb\u7ecd BIO \u5c31\u662f\u4f20\u7edf\u7684 jav [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[136],"tags":[155],"class_list":["post-660","post","type-post","status-publish","format-standard","hentry","category-notes-misc","tag-io"],"_links":{"self":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/660","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=660"}],"version-history":[{"count":1,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/660\/revisions"}],"predecessor-version":[{"id":2040,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/660\/revisions\/2040"}],"wp:attachment":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}