{"id":289387,"date":"2024-01-08T21:52:14","date_gmt":"2024-01-08T13:52:14","guid":{"rendered":"https:\/\/lrxjmw.cn\/lzsspzznqszw.html"},"modified":"2024-01-08T21:52:14","modified_gmt":"2024-01-08T13:52:14","slug":"lzsspzznqszw","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/lzsspzznqszw.html","title":{"rendered":"Linux\u963b\u585eSocket\u914d\u7f6e\u6307\u5357\uff0c\u8f7b\u677e\u638c\u63e1\u5b9e\u7528\u6280\u5de7"},"content":{"rendered":"

\u6b22\u8fce\u9605\u8bfb\u6b64\u6587\uff01\u8fd9\u662f\u4e00\u4efd\u901a\u4fd7\u6613\u61c2\u7684Linux<\/a>\u7ba1\u7406\u6307\u5357\uff0c\u5c06\u8be6\u7ec6\u89e3\u8bfb\u5982\u4f55\u914d\u7f6eLinux\u963b\u585eSocket\u3002\u65e0\u8bba\u60a8\u662f\u65b0\u624b\u8fd8\u662f\u4e13\u5bb6\uff0c\u90fd\u53ef\u4ee5\u4ece\u4e2d\u5b66\u5230\u77e5\u8bc6\u3002\u901a\u8fc7\u5b9e\u8df5\u8fd9\u4e2a\u64cd\u4f5c\u6280\u5de7\uff0c\u795d\u60a8\u66f4\u597d\u5730\u8fd0\u7528\u8fd9\u9879\u6280\u80fd\u3002<\/p>\n

1.\u4ec0\u4e48\u662fSocket\uff1f<\/b><\/p>\n

Socket\uff0c\u60a8\u662f\u5426\u719f\u6089\u5462\uff1f\u5b83\u662f\u5728Linux\u7cfb\u7edf<\/a>\u7f51\u7edc\u7f16\u7a0b\u4e2d\u5e38\u7528\u7684\u534f\u8bae\uff0c\u6781\u5176\u5b9e\u7528\u4e14\u7a33\u5b9a\u6027\u9ad8linux socket \u8bbe\u7f6e\u963b\u585e<\/strong>\uff0c\u80fd\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u8de8\u8fdb\u7a0b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n

2.\u4ec0\u4e48\u662f\u963b\u585e\u6a21\u5f0f\uff1f<\/b><\/p>\n

\u963b\u585e\u6a21\u5f0f\u8868\u660e\uff0c\u5728\u8fdb\u884cSocket\u64cd\u4f5c\u7684\u7a7a\u95f2\u65f6\u6bb5\uff0c\u5982\u679c\u6ca1\u6709\u8bfb\u5199\u8981\u6c42\uff0c\u90a3\u4e48\u8fdb\u7a0b\u5c06\u4f9d\u7136\u575a\u5b88\u7b49\u5f85\uff0c\u8fd9\u662f\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u5145\u5206\u51c6\u5907\u6216\u8005\u64cd\u4f5c\u7684\u987a\u5229\u8fdb\u884c\u3002\u5728\u8fd9\u6bb5\u65f6\u95f4\u5185\uff0c\u8fdb\u7a0b\u5c06\u9759\u5019\u64cd\u4f5c\u7ed3\u675f\u6216\u8005\u8d85\u65f6\u65f6\u95f4\u5230\u8fbe\u540e\u518d\u5f00\u59cb\u63a5\u4e0b\u6765\u7684\u6b65\u9aa4\u3002<\/p>\n

3.\u5982\u4f55\u8bbe\u7f6eSocket\u4e3a\u963b\u585e\u6a21\u5f0f\uff1f<\/b><\/p>\n

$socketaccept\u963b\u585e_linux socket \u8bbe\u7f6e\u963b\u585e_socket\u963b\u585e\u548c\u975e\u963b\u585e\u8bbe\u7f6e$ <\/p>\n

\u8981\u5c06Socket\u8bbe\u7f6e\u4e3a\u963b\u585e\u6a21\u5f0f\u5982\u4f55\u5b89\u88c5LINUX\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

\u6b65\u9aa41\uff1a\u521b\u5efaSocket\u5bf9\u8c61\u3002<\/p>\n

\u6b65\u9aa42\uff1a\u5c06Socket\u8bbe\u7f6e\u4e3a\u963b\u585e\u6a21\u5f0f\u3002<\/p>\n

\u6b65\u9aa43\uff1a\u8fdb\u884c\u8fde\u63a5\u3001\u8bfb\u53d6\u6216\u5199\u5165\u7b49\u64cd\u4f5c\u3002<\/p>\n

\u6b65\u9aa44\uff1a\u5173\u95edSocket\u8fde\u63a5\u3002<\/p>\n

4.\u8bbe\u7f6eSocket\u4e3a\u963b\u585e\u6a21\u5f0f\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/b><\/p>\n

\u672c\u7bc7\u77ed\u6587\u4e2dlinux\u547d\u4ee4vi\uff0c\u6211\u4eec\u5c06\u4e3a\u60a8\u5c55\u793a\u5982\u4f55\u7b80\u5355\u5730\u5c06Socket\u8bbe\u5b9a\u4f4d\u963b\u585e\u6a21\u5f0f\u7684C\u8bed\u8a00\u4ee3\u7801\u3002<\/p>\n

c\n#include <stdio.h>\n#include <sys\/types.h>\n#include <sys\/socket.h>\nint main(){\n    int sockfd;\n    \/\/\u521b\u5efaSocket\u5bf9\u8c61\n\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efa\u5957\u63a5\u5b57\uff0c\u5e76\u5c06\u5176\u7ed1\u5b9a\u5230\u7f51\u7edc\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff1a\n\u5c0a\u656c\u7684\u8bfb\u8005\u60a8\u597dlinux socket \u8bbe\u7f6e\u963b\u585e<\/strong>\uff0c\u8bf7\u5148\u4f7f\u7528 socket()\u51fd\u6570\u521b\u5efa\u5957\u63a5\u5b57 sockfd\u3002\n    \/\/\u8bbe\u7f6eSocket\u4e3a\u963b\u585e\u6a21\u5f0f\n\u656c\u8bf7\u5229\u7528fcntl\u529f\u80fd\u67e5\u8be2\u5e76\u50a8\u5b58sockfd socket\u6807\u5fd7\u4f4d\u5230\u540d\u4e3aflags\u7684\u53d8\u91cf\u4e2d\uff0c\u4e0d\u80dc\u611f\u6fc0\u3002\n    flags &=~O_NONBLOCK;\n\u8bf7\u60a8\u5728\u4f7f\u7528fcntl\u51fd\u6570\u4fee\u6539\u5957\u63a5\u5b57\u9009\u9879\u65f6\uff0c\u5f97\u51fa\u66f4\u597d\u7684\u6548\u679c\u3002\n    \/\/\u8fdb\u884c\u8fde\u63a5\u3001\u8bfb\u53d6\u6216\u5199\u5165\u7b49\u64cd\u4f5c\n    \/\/...\n    \/\/\u5173\u95edSocket\u8fde\u63a5\n    close(sockfd);\n    return 0;\n<\/pre>\n<\/p>\n5.\u963b\u585e\u6a21\u5f0f\u7684\u4f18\u7f3a\u70b9\u662f\u4ec0\u4e48\uff1f<\/b><\/p>\n
\u4f18\u70b9\uff1a<\/p>\n
-\u963b\u585e\u6a21\u5f0f\u7f16\u7a0b\u76f8\u5bf9\u7b80\u5355\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u5b9e\u73b0\u3002<\/p>\n
-\u5728\u6ca1\u6709\u53d1\u751f\u8bfb\u6216\u5199\u4ea4\u6613\u65f6\uff0c\u6211\u4eec\u4f1a\u6682\u65f6\u505c\u6b62\u8fd0\u884c\u7a0b\u5e8f\uff0c\u4ee5\u964d\u4f4e\u9891\u7e41\u800c\u8017\u8d39\u8f83\u591a\u8d44\u6e90\u7684\u8f6e\u8be2\u64cd\u4f5c\u5bf9\u60a8\u7684\u8ba1\u7b97\u673a\u9020\u6210\u7684\u538b\u529b\u3002<\/p>\n
\u7f3a\u70b9\uff1a<\/p>\n
-\u5728\u963b\u585e\u6a21\u5f0f\u4e0b\uff0c\u8fdb\u7a0b\u4f1a\u4e00\u76f4\u7b49\u5f85\uff0c\u65e0\u6cd5\u540c\u65f6\u5904\u7406\u5176\u4ed6\u4efb\u52a1\u3002<\/p>\n
\u5728\u6b64\u60c5\u51b5\u4e0b\uff0c\u5f53\u7f51\u7edc\u72b6\u51b5\u4e0d\u4f73\u6216\u8005\u63a5\u6536\u4e86\u8f83\u591a\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u6211\u4eec\u4f1a\u6ce8\u610f\u5230\u963b\u585e\u65b9\u5f0f\u53ef\u80fd\u7a0d\u5fae\u5f71\u54cd\u5904\u7406\u901f\u7387\u3002<\/p>\n
<\/p>\n
6.\u5982\u4f55\u5224\u65adSocket\u662f\u5426\u5904\u4e8e\u963b\u585e\u6a21\u5f0f\uff1f<\/b><\/p>\n
\u8981\u5224\u65adSocket\u662f\u5426\u5904\u4e8e\u963b\u585e\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n
\u65b9\u5f0f1\uff1a\u53ef\u4ee5\u5c1d\u8bd5\u501f\u52a9fcntl\u529f\u80fd\u4e86\u89e3Socket\u6587\u4ef6\u72b6\u6001\uff0c\u5e76\u786e\u4fdd\u5df2\u7ecf\u8bbe\u7f6e\u4e86O_NONBLOCK\u6807\u5fd7\u3002<\/p>\n
\u65b9\u6848\u4e8c\uff1a\u6211\u4eec\u5f3a\u70c8\u63a8\u8350\u9009\u62e9SELECT\u6216\u8005POLL\u51fd\u6570\u6765\u5b9e\u73b0\u975e\u5835\u585e\u7684\u8bfb\u53d6\u548c\u5199\u5165\u64cd\u4f5c\u3002\u82e5\u8f93\u51fa\u4e86\u8bf8\u5982EWOULDBLOCK\u6216EAGAIN\u4e4b\u7c7b\u7684\u9519\u8bef\u4ee3\u7801\uff0c\u8fd9\u6216\u8bb8\u610f\u5473\u7740\u60a8\u7684Socket\u6b63\u5904\u5728\u963b\u585e\u6a21\u5f0f\u4e2d\u3002<\/p>\n
7.\u5982\u4f55\u5207\u6362Socket\u7684\u963b\u585e\u6a21\u5f0f\uff1f<\/b><\/p>\n
<\/p>\n
\u8981\u5207\u6362Socket\u7684\u963b\u585e\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n
\u6b65\u9aa41\uff1a\u83b7\u53d6Socket\u7684\u6587\u4ef6\u72b6\u6001\u6807\u5fd7\u3002<\/p>\n
\u6b65\u9aa42\uff1a\u6839\u636e\u9700\u8981\u8bbe\u7f6e\u6216\u6e05\u9664O_NONBLOCK\u6807\u5fd7\u3002<\/p>\n
\u7b2c\u4e09\u6b65\uff1a\u8bf7\u60a8\u4f7f\u7528fcntl\u51fd\u6570\uff0c\u5c06\u5df2\u7ecf\u4fee\u8ba2\u8fc7\u7684\u6587\u4ef6\u72b6\u6001\u6807\u793a\u66f4\u65b0\u81f3Socket\u4e2d\u3002<\/p>\n
\u5982\u60a8\u6240\u613f\u5730\uff0c\u6839\u636e\u4ee5\u4e0a\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\u4fbf\u53ef\u7075\u6d3b\u5207\u6362Socket\u7684\u963b\u585e\u6a21\u5f0f\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u5546\u52a1\u9700\u8981\u3002<\/p>\n
\u656c\u7231\u7684\u8bfb\u8005\uff0c\u611f\u8c22\u60a8\u5bf9\u8fd9\u7bc7\u6587\u7ae0\u7684\u9605\u8bfb\u548c\u652f\u6301\u3002\u672c\u7bc7\u65e8\u5728\u8ba9\u5927\u5bb6\u66f4\u81ea\u4fe1\u5730\u638c\u63e1Linux Socket\u963b\u585e\u6a21\u5f0f\u3002\u5982\u6709\u7591\u60d1\u6216\u5e2e\u52a9\u9700\u6c42\uff0c\u6211\u4eec\u968f\u65f6\u6b22\u8fce\u60a8\u7684\u54a8\u8be2\u3002\u795d\u613f\u60a8\u7f16\u7a0b\u4e4b\u8def\u987a\u5229\u6109\u5feb\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u662f\u4e00\u4efd\u901a\u4fd7\u6613\u61c2\u7684Linux\u7ba1\u7406\u6307\u5357\uff0c\u5c06\u8be6\u7ec6\u89e3\u8bfb\u5982\u4f55\u914d\u7f6eLinux\u963b\u585eSocket\u3002\u8981\u5c06Socket\u8bbe\u7f6e\u4e3a\u963b\u585e\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u8981\u5207\u6362Socket\u7684\u963b\u585e\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u5982\u60a8\u6240\u613f\u5730\uff0c\u6839\u636e\u4ee5\u4e0a\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\u4fbf\u53ef\u7075\u6d3b\u5207\u6362Socket\u7684\u963b\u585e\u6a21\u5f0f\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u5546\u52a1\u9700\u8981\u3002<\/p>\n","protected":false},"author":1,"featured_media":289388,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[988],"tags":[999],"class_list":["post-289387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tougao","tag-999"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/289387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=289387"}],"version-history":[{"count":0,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/289387\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/289388"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=289387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=289387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=289387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}