{"id":198568,"date":"2024-11-14T20:21:08","date_gmt":"2024-11-14T12:21:08","guid":{"rendered":"https:\/\/server.hk\/cnblog\/198568\/"},"modified":"2024-11-14T20:21:08","modified_gmt":"2024-11-14T12:21:08","slug":"%e3%80%8c%e6%b7%b1%e5%ba%a6%e6%8e%a2%e7%a9%b6%e3%80%8dlinux-udt%e6%ba%90%e7%a2%bc%e8%a7%a3%e6%9e%90-linux-udt-%e6%ba%90%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/198568\/","title":{"rendered":"\u300c\u6df1\u5ea6\u63a2\u7a76\u300dLinux UDT\u6e90\u78bc\u89e3\u6790 (linux udt \u6e90\u78bc)"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%ba%a6%e6%8e%a2%e7%a9%b6-linux-udt-%e6%ba%90%e7%a2%bc%e8%a7%a3%e6%9e%90-TreNAFhKjC\">\u6df1\u5ea6\u63a2\u7a76 Linux UDT \u6e90\u78bc\u89e3\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u50b3\u8f38\u7684\u6548\u7387\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002Linux UDT\uff08UDP-based Data Transfer Protocol\uff09\u4f5c\u70ba\u4e00\u7a2e\u57fa\u65bcUDP\u7684\u6578\u64da\u50b3\u8f38\u5354\u8b70\uff0c\u56e0\u5176\u9ad8\u6548\u7684\u6578\u64da\u50b3\u8f38\u80fd\u529b\u800c\u53d7\u5230\u5ee3\u6cdb\u95dc\u6ce8\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eLinux UDT\u7684\u6e90\u78bc\uff0c\u5206\u6790\u5176\u8a2d\u8a08\u539f\u7406\u53ca\u5be6\u73fe\u7d30\u7bc0\u3002<\/p>\n<h2 id=\"udt%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-TreNAFhKjC\">UDT\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>UDT\u662f\u4e00\u7a2e\u5c08\u70ba\u9ad8\u5e36\u5bec\u3001\u9ad8\u5ef6\u9072\u7db2\u7d61\u74b0\u5883\u8a2d\u8a08\u7684\u6578\u64da\u50b3\u8f38\u5354\u8b70\u3002\u8207TCP\u76f8\u6bd4\uff0cUDT\u80fd\u66f4\u597d\u5730\u9069\u61c9\u5927\u6578\u64da\u91cf\u7684\u50b3\u8f38\u9700\u6c42\uff0c\u7279\u5225\u662f\u5728\u7db2\u7d61\u5ef6\u9072\u8f03\u9ad8\u7684\u60c5\u6cc1\u4e0b\u3002UDT\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u57fa\u65bcUDP\u5354\u8b70\uff0c\u907f\u514d\u4e86TCP\u7684\u64c1\u585e\u63a7\u5236\u554f\u984c\u3002<\/li>\n<li>\u652f\u6301\u5927\u6578\u64da\u6d41\u7684\u9ad8\u6548\u50b3\u8f38\u3002<\/li>\n<li>\u63d0\u4f9b\u4e86\u53ef\u9760\u7684\u6578\u64da\u50b3\u8f38\u6a5f\u5236\u3002<\/li>\n<\/ul>\n<h2 id=\"udt%e7%9a%84%e6%ba%90%e7%a2%bc%e7%b5%90%e6%a7%8b-TreNAFhKjC\">UDT\u7684\u6e90\u78bc\u7d50\u69cb<\/h2>\n<p>UDT\u7684\u6e90\u78bc\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><code>udt.h<\/code>\uff1a\u5b9a\u7fa9\u4e86UDT\u7684\u57fa\u672c\u6578\u64da\u7d50\u69cb\u548c\u51fd\u6578\u63a5\u53e3\u3002<\/li>\n<li><code>udt.cpp<\/code>\uff1a\u5be6\u73fe\u4e86UDT\u7684\u6838\u5fc3\u529f\u80fd\uff0c\u5305\u62ec\u9023\u63a5\u7ba1\u7406\u3001\u6578\u64da\u50b3\u8f38\u548c\u932f\u8aa4\u8655\u7406\u3002<\/li>\n<li><code>udt_util.cpp<\/code>\uff1a\u63d0\u4f9b\u4e86\u4e00\u4e9b\u8f14\u52a9\u51fd\u6578\uff0c\u7528\u65bc\u6578\u64da\u5305\u7684\u7de8\u78bc\u548c\u89e3\u78bc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%a0%b8%e5%bf%83%e5%8a%9f%e8%83%bd%e8%a7%a3%e6%9e%90-TreNAFhKjC\">\u6838\u5fc3\u529f\u80fd\u89e3\u6790<\/h2>\n<h3 id=\"%e9%80%a3%e6%8e%a5%e7%ae%a1%e7%90%86-TreNAFhKjC\">\u9023\u63a5\u7ba1\u7406<\/h3>\n<p>UDT\u7684\u9023\u63a5\u7ba1\u7406\u4e3b\u8981\u901a\u904e<code>UDT::connect()<\/code>\u548c<code>UDT::close()<\/code>\u51fd\u6578\u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u51fd\u6578\u8ca0\u8cac\u5efa\u7acb\u548c\u95dc\u9589UDT\u9023\u63a5\uff0c\u4e26\u78ba\u4fdd\u5728\u9023\u63a5\u904e\u7a0b\u4e2d\u9032\u884c\u5fc5\u8981\u7684\u932f\u8aa4\u6aa2\u67e5\u3002<\/p>\n<pre><code>\nint UDT::connect(const char* host, int port) {\n    \/\/ \u9023\u63a5\u908f\u8f2f\n    ...\n    return 0; \/\/ \u6210\u529f\n}\n<\/code><\/pre>\n<h3 id=\"%e6%95%b8%e6%93%9a%e5%82%b3%e8%bc%b8-TreNAFhKjC\">\u6578\u64da\u50b3\u8f38<\/h3>\n<p>\u6578\u64da\u50b3\u8f38\u662fUDT\u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u3002UDT\u4f7f\u7528<code>send()<\/code>\u548c<code>recv()<\/code>\u51fd\u6578\u4f86\u5be6\u73fe\u6578\u64da\u7684\u767c\u9001\u548c\u63a5\u6536\u3002\u9019\u4e9b\u51fd\u6578\u6703\u6839\u64da\u7576\u524d\u7684\u7db2\u7d61\u72c0\u6cc1\u52d5\u614b\u8abf\u6574\u50b3\u8f38\u901f\u7387\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u7684\u50b3\u8f38\u6548\u679c\u3002<\/p>\n<pre><code>\nint UDT::send(const char* data, int length) {\n    \/\/ \u767c\u9001\u6578\u64da\u908f\u8f2f\n    ...\n    return bytesSent; \/\/ \u8fd4\u56de\u5be6\u969b\u767c\u9001\u7684\u5b57\u7bc0\u6578\n}\n<\/code><\/pre>\n<h3 id=\"%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-TreNAFhKjC\">\u932f\u8aa4\u8655\u7406<\/h3>\n<p>UDT\u5728\u6578\u64da\u50b3\u8f38\u904e\u7a0b\u4e2d\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u60c5\u6cc1\uff0c\u56e0\u6b64\u932f\u8aa4\u8655\u7406\u6a5f\u5236\u81f3\u95dc\u91cd\u8981\u3002UDT\u4f7f\u7528<code>getError()<\/code>\u51fd\u6578\u4f86\u7372\u53d6\u7576\u524d\u7684\u932f\u8aa4\u72c0\u614b\uff0c\u4e26\u6839\u64da\u932f\u8aa4\u985e\u578b\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<pre><code>\nint UDT::getError() {\n    \/\/ \u7372\u53d6\u932f\u8aa4\u72c0\u614b\n    ...\n    return errorCode; \/\/ \u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc\n}\n<\/code><\/pre>\n<h2 id=\"%e6%80%a7%e8%83%bd%e5%84%aa%e5%8b%a2-TreNAFhKjC\">\u6027\u80fd\u512a\u52e2<\/h2>\n<p>UDT\u5728\u9ad8\u5e36\u5bec\u5ef6\u9072\u74b0\u5883\u4e0b\u7684\u6027\u80fd\u512a\u52e2\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u7684\u5e36\u5bec\u5229\u7528\u7387\uff1aUDT\u80fd\u5920\u5145\u5206\u5229\u7528\u53ef\u7528\u5e36\u5bec\uff0c\u6e1b\u5c11\u50b3\u8f38\u5ef6\u9072\u3002<\/li>\n<li>\u9748\u6d3b\u7684\u64c1\u585e\u63a7\u5236\uff1aUDT\u6839\u64da\u7db2\u7d61\u72c0\u6cc1\u52d5\u614b\u8abf\u6574\u50b3\u8f38\u901f\u7387\uff0c\u907f\u514d\u4e86TCP\u7684\u64c1\u585e\u554f\u984c\u3002<\/li>\n<li>\u652f\u6301\u5927\u6578\u64da\u6d41\uff1aUDT\u80fd\u5920\u8655\u7406\u5927\u65bcTCP\u7684\u6578\u64da\u6d41\uff0c\u9069\u5408\u5927\u6578\u64da\u61c9\u7528\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TreNAFhKjC\">\u7e3d\u7d50<\/h2>\n<p>Linux UDT\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u50b3\u8f38\u5354\u8b70\uff0c\u901a\u904e\u5176\u7368\u7279\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u70ba\u9ad8\u5e36\u5bec\u3001\u9ad8\u5ef6\u9072\u7684\u7db2\u7d61\u74b0\u5883\u63d0\u4f9b\u4e86\u512a\u79c0\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u4e2d\u5fc3\u9084\u662f\u96f2\u8a08\u7b97\u74b0\u5883\u4e2d\uff0cUDT\u90fd\u80fd\u767c\u63ee\u5176\u512a\u52e2\uff0c\u63d0\u5347\u6578\u64da\u50b3\u8f38\u7684\u6548\u7387\u548c\u7a69\u5b9a\u6027\u3002\u5982\u679c\u60a8\u5c0d\u65bc<code>VPS<\/code>\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u89e3\u6790Linux UDT\u6e90\u78bc\uff0c\u63a2\u7d22\u5176\u67b6\u69cb\u8207\u529f\u80fd\uff0c\u63ed\u793a\u9ad8\u6548\u6578\u64da\u50b3\u8f38\u80cc\u5f8c\u7684\u6280\u8853\u7d30\u7bc0\u8207\u5be6\u73fe\u539f\u7406\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-198568","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198568","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=198568"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198568\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=198568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=198568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=198568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}