{"id":813,"date":"2018-06-26T20:43:05","date_gmt":"2018-06-26T12:43:05","guid":{"rendered":"http:\/\/www.mrtblog.cn\/?p=813"},"modified":"2023-03-10T23:45:58","modified_gmt":"2023-03-10T15:45:58","slug":"%e3%80%90c%e3%80%91socket%e7%bc%96%e7%a8%8b%e8%ae%b0%e5%bd%95","status":"publish","type":"post","link":"http:\/\/www.mrtblog.cn\/?p=813","title":{"rendered":"\u3010C++\u3011Socket\u7f16\u7a0b\u8bb0\u5f55"},"content":{"rendered":"<div class='epvc-post-count'><span class='epvc-eye'><\/span>  <span class=\"epvc-count\"> 1,491<\/span><span class='epvc-label'> Views<\/span><\/div><p>\u53c2\u8003\uff1a<br \/>\n<a href=\"https:\/\/www.cnblogs.com\/kefeiGame\/p\/7246942.html\">https:\/\/www.cnblogs.com\/kefeiGame\/p\/7246942.html<\/a><br \/>\n<a href=\"http:\/\/blog.chinaunix.net\/uid-25422700-id-176484.html\">https:\/\/www.cnblogs.com\/kefeiGame\/p\/7246942.html<\/a><br \/>\n<a href=\"https:\/\/blog.csdn.net\/al_xin\/article\/details\/39051193\">https:\/\/blog.csdn.net\/al_xin\/article\/details\/39051193<\/a><\/p>\n<h1><strong>socket\uff1a<\/strong><\/h1>\n<h2><strong>\u7ed3\u6784\u4f53\uff1a<\/strong><\/h2>\n<pre class=\"highlight\"><code class=\"language-cpp line-numbers\">\n\/*\u4e3a\u5957\u63a5\u5b57\u50a8\u5b58\u5957\u63a5\u5b57\u5730\u5740\u4fe1\u606f*\/\nstruct sockaddr {\n\u3000\u3000unsigned short sa_family; \/* \u5730\u5740\u5bb6\u65cf, AF_xxx *\/\n\u3000\u3000char sa_data[14]; \/*14\u5b57\u8282\u534f\u8bae\u5730\u5740*\/\n};\n\n\/*\u5957\u63a5\u5b57\u7684\u57fa\u672c\u7ed3\u6784*\/\nstruct sockaddr_in {\n\u3000\u3000short int sin_family; \/* \u901a\u4fe1\u7c7b\u578b *\/\n\u3000\u3000unsigned short int sin_port; \/* \u7aef\u53e3 *\/\n\u3000\u3000struct in_addr sin_addr; \/* Internet \u5730\u5740 *\/\n\u3000\u3000unsigned char sin_zero[8]; \/* \u4e0esockaddr\u7ed3\u6784\u7684\u957f\u5ea6\u76f8\u540c*\/\n};\n\n\/*\u5957\u63a5\u5b57\u7684Internet\u5730\u5740\uff08\u7f51\u7edc\u5b57\u8282\u987a\u5e8f\uff09*\/\nstruct in_addr {\n\u3000\u3000unsigned long s_addr;\n};\n<\/code><\/pre>\n<h2><strong>\u5e38\u7528\u51fd\u6570\uff1a<\/strong><\/h2>\n<pre class=\"highlight\"><code class=\"language-cpp line-numbers\">\n\/*\u521b\u5efa\u4e00\u4e2a\u5d4c\u5957\u53e3\uff0c\u9519\u8bef\u65f6return -1*\/\nint socket(int domain, int type, int protocol);\ndomain: \u5730\u5740\u63cf\u8ff0\uff0c\u9ed8\u8ba4\u503cAF_INET\ntype: \u5d4c\u5957\u53e3\u7684\u7c7b\u578b\uff0c\u4e3b\u8981\u662fSOCK_STREAM(TCP)\u548cSOCK_DGRAM(UDP) \nprotocol: \u5d4c\u5957\u53e3\u4f7f\u7528\u7684\u534f\u8bae\uff0c\u9ed8\u8ba40\n\n\/*\u5d4c\u5957\u5b57\u548c\u7aef\u53e3\u7ed1\u5b9a\uff0clisten\u524d\u5fc5\u987bbind\uff0c\u9519\u8bef\u65f6return -1*\/\nint bind(int sockfd, struct sockaddr *my_addr, int addrlen);\nsockfd: socket()\u540e\u7684\u8fd4\u56de\u503c\nmy_addr: sockaddr \u7684\u6307\u9488\naddrlen: \u9ed8\u8ba4\u503csizeof(struct sockaddr)\n\n\/*\u5efa\u7acb\u8fde\u63a5*\/\nint connect(int sockfd, struct sockaddr *serv_addr, int addrlen);\n\u53c2\u6570\u4e0ebind\u76f8\u540c\n\n\/*\u53d1\u9001\u3001\u63a5\u53d7\u6570\u636e*\/\nint send(int sockfd, const void *msg, int len, int flags);\/\/TCP\nint recv(int sockfd, void *buf, int len, unsigned int flags);\/\/TCP\nint sendto(int sockfd, const void *msg, int len, unsigned int flags,const struct sockaddr *to, int tolen);\/\/UDP\nint recvfrom(int sockfd, void *buf, int len, unsigned int flags, struct sockaddr *from, int *fromlen);\/\/UDP\nsockfd: socket()\u540e\u7684\u8fd4\u56de\u503c\nmsg: \u53d1\u9001\u6570\u636e\u7684\u6307\u9488\nlen: \u6570\u636e\u957f\u5ea6\nflags: \u8c03\u7528\u7684\u6267\u884c\u65b9\u5f0f\uff0c\u9ed8\u8ba40\nto\/from: sockaddr\u6307\u9488\ntolen\/fromlen: \u9ed8\u8ba4\u503csizeof(struct sockaddr)\n<\/code><\/pre>\n<h2><strong>\u5176\u4ed6\uff1a<\/strong><\/h2>\n<pre class=\"highlight\"><code class=\"language-cpp line-numbers\">\n\/\/132.241.5.10-&gt;168161668\nip\u5730\u5740\u8f6c\u6362\u4e3a\u7f51\u7edc\u5b57\u8282\u987a\u5e8f\u7684\u5730\u5740\uff1ainet_addr(ip\u5730\u5740);\n\/\/168161668-&gt;132.241.5.10\n\u7f51\u7edc\u5b57\u8282\u5730\u5740\u8f6c\u6362\u4e3aip\u5730\u5740\uff1ainet_ntoa(ina.sin_addr);\n\nhtons()--&quot;Host to Network Short&quot;\nhtonl()--&quot;Host to Network Long&quot;\nntohs()--&quot;Network to Host Short&quot;\nntohl()--&quot;Network to Host Long&quot;\n\nsockaddr_in.sin_port = 0; \/* \u968f\u673a\u9009\u62e9\u4e00\u4e2a\u6ca1\u6709\u4f7f\u7528\u7684\u7aef\u53e3 *\/\nsockaddr_in.sin_addr.s_addr = INADDR_ANY; \/* \u4f7f\u7528\u81ea\u5df1\u7684IP\u5730\u5740 *\/\n<\/code><\/pre>\n<h1><strong>\u591a\u7ebf\u7a0b\uff1a<\/strong><\/h1>\n<p>\u4e24\u79cd\u6267\u884c\u65b9\u5f0f\uff1a<br \/>\ndetach\u65b9\u5f0f\uff0c\u542f\u52a8\u7684\u7ebf\u7a0b\u81ea\u4e3b\u5728\u540e\u53f0\u8fd0\u884c\uff0c\u5f53\u524d\u7684\u4ee3\u7801\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c\uff0c\u4e0d\u7b49\u5f85\u65b0\u7ebf\u7a0b\u7ed3\u675f\u3002\u524d\u9762\u4ee3\u7801\u6240\u4f7f\u7528\u7684\u5c31\u662f\u8fd9\u79cd\u65b9\u5f0f\u3002<br \/>\njoin\u65b9\u5f0f\uff0c\u7b49\u5f85\u542f\u52a8\u7684\u7ebf\u7a0b\u5b8c\u6210\uff0c\u624d\u4f1a\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c\u3002\u5047\u5982\u524d\u9762\u7684\u4ee3\u7801\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5176\u8f93\u51fa\u5c31\u4f1a0,1,2,3\uff0c\u56e0\u4e3a\u6bcf\u6b21\u90fd\u662f\u524d\u4e00\u4e2a\u7ebf\u7a0b\u8f93\u51fa\u5b8c\u6210\u4e86\u624d\u4f1a\u8fdb\u884c\u4e0b\u4e00\u4e2a\u5faa\u73af\uff0c\u542f\u52a8\u4e0b\u4e00\u4e2a\u65b0\u7ebf\u7a0b\u3002<\/p>\n<p>\u7ebf\u7a0b\u9ed8\u8ba4\u62f7\u8d1d\u5bf9\u8c61\uff0c\u5373\u4f7f\u4f20\u5165\u7684\u662f\u5f15\u7528\uff0c\u9664\u975e\u4f7f\u7528ref\u51fd\u6570<\/p>\n<pre class=\"highlight\"><code class=\"language-cpp line-numbers\">\nclass _tagNode\n{\npublic:\n    int a;\n    int b;\n};\n\nvoid func(_tagNode &amp;node)\n{\n    node.a = 10;\n    node.b = 20;\n}\n\nvoid f()\n{\n    _tagNode node;\n    thread t(func, node);\n    \/\/ thread t(func,std::ref(node));\n    t.join();\n    cout &lt;&lt; node.a &lt;&lt; endl ;\n    cout &lt;&lt; node.b &lt;&lt; endl ;\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1,491 Views\u53c2\u8003\uff1a https:\/\/www.cnblogs.com\/kefeiGame\/p\/7246 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,110],"tags":[],"class_list":["post-813","post","type-post","status-publish","format-standard","hentry","category-st","category-110"],"_links":{"self":[{"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=\/wp\/v2\/posts\/813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=813"}],"version-history":[{"count":3,"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=\/wp\/v2\/posts\/813\/revisions"}],"predecessor-version":[{"id":1146,"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=\/wp\/v2\/posts\/813\/revisions\/1146"}],"wp:attachment":[{"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=813"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.mrtblog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}