{"id":43326,"date":"2025-06-12T07:11:31","date_gmt":"2025-06-11T23:11:31","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/43326.html"},"modified":"2025-06-12T07:11:31","modified_gmt":"2025-06-11T23:11:31","slug":"c-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b11%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%80%bb%e8%be%91%e5%b1%82%e8%ae%be%e8%ae%a1%e5%92%8c%e6%b6%88%e6%81%af%e5%ae%8c%e5%96%84","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/43326.html","title":{"rendered":"C++ \u7f51\u7edc\u7f16\u7a0b(11)\u670d\u52a1\u5668\u903b\u8f91\u5c42\u8bbe\u8ba1\u548c\u6d88\u606f\u5b8c\u5584"},"content":{"rendered":"<p>&#x1f3af; C&#043;&#043; \u7f51\u7edc\u7f16\u7a0b(11)\u670d\u52a1\u5668\u903b\u8f91\u5c42\u8bbe\u8ba1\u548c\u6d88\u606f\u5b8c\u5584 &#x1f4c5; \u66f4\u65b0\u65f6\u95f4&#xff1a;2025\u5e746\u67087\u65e5 &#x1f3f7;\ufe0f \u6807\u7b7e&#xff1a;C&#043;&#043; | Boost.Asio | \u7f51\u7edc\u7f16\u7a0b | tlv\u534f\u8bae | TCP<\/p>\n<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/li>\n<li>\u4e8c\u3001\u6d88\u606f\u5934\u5b8c\u5584<\/li>\n<li>\u4e09\u3001MsgNode.h<\/li>\n<li>\n<ul>\n<li>1.\u4ee3\u7801\u90e8\u5206<\/li>\n<li>2.\u4ee3\u7801\u8bb2\u89e3<\/li>\n<li>3.MsgNode\u4e2d\u7c7b\u6784\u9020\u51fd\u6570\u5b9e\u73b0<\/li>\n<li>4.\u6ce8\u610f\u70b9<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001Session\u7c7b\u6539\u5199<\/li>\n<li>\n<ul>\n<li>CSession.h<\/li>\n<li>CSession::Send<\/li>\n<li>CSession::HandleRead<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<hr \/>\n<h2>\u524d\u8a00<\/h2>\n<p>\u63d0\u793a&#xff1a;\u8fd9\u91cc\u53ef\u4ee5\u6dfb\u52a0\u672c\u6587\u8981\u8bb0\u5f55\u7684\u5927\u6982\u5185\u5bb9&#xff1a;<\/p>\n<p>\u672c\u6587\u6982\u8ff0\u57fa\u4e8e<font color=\"red\">boost::asio<\/font>\u5b9e\u73b0\u7684\u670d\u52a1\u5668\u903b\u8f91\u5c42\u7ed3\u6784&#xff0c;\u5e76\u4e14\u5b8c\u5584\u4e4b\u524d\u8bbe\u8ba1\u7684\u6d88\u606f\u7ed3\u6784\u3002\u56e0\u4e3a\u4e3a\u4e86\u7b80\u5316\u7c98\u5305\u5904\u7406&#xff0c;\u6211\u4eec\u7b80\u5316\u4e86\u53d1\u9001\u6570\u636e\u7684\u7ed3\u6784,\u8fd9\u6b21\u6211\u4eec\u7ed9\u51fa\u5b8c\u6574\u7684\u6d88\u606f\u8bbe\u8ba1&#xff0c;\u4ee5\u53ca\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/p>\n<hr \/>\n<p>\u63d0\u793a&#xff1a;\u4ee5\u4e0b\u662f\u672c\u7bc7\u6587\u7ae0\u6b63\u6587\u5185\u5bb9&#xff0c;\u4e0b\u9762\u6848\u4f8b\u53ef\u4f9b\u53c2\u8003<\/p>\n<h2>\u4e00\u3001\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250611231129-684a0d21b961e.png\" alt=\"\u793a\u4f8b&#xff1a;pandas \u662f\u57fa\u4e8eNumPy \u7684\u4e00\u79cd\u5de5\u5177&#xff0c;\u8be5\u5de5\u5177\u662f\u4e3a\u4e86\u89e3\u51b3\u6570\u636e\u5206\u6790\u4efb\u52a1\u800c\u521b\u5efa\u7684\u3002\" \/><\/p>\n<p>\u6211\u4eec\u63a5\u4e0b\u6765\u8981\u8bbe\u8ba1\u7684\u670d\u52a1\u5668\u7ed3\u6784\u662f\u8fd9\u6837\u7684<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250611231129-684a0d21e619e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u4e8c\u3001\u6d88\u606f\u5934\u5b8c\u5584<\/h2>\n<p>\u6211\u4eec\u8fd9\u6b21\u7528\u4e00\u4e2a\u5b8c\u6574\u7684tlv\u534f\u8bae\u7684\u7ed3\u679c\u6765\u5b9e\u73b0&#xff0c;\u4e4b\u524d\u6211\u4eec\u53ea\u6709\u4e00\u4e2a\u6d88\u606f\u957f\u5ea6\u548c\u6d88\u606f\u5185\u5bb9 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250611231130-684a0d221747b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u73b0\u5728\u5c06\u5176\u5b8c\u5584\u4e3a\u5982\u4e0b\u7684\u6837\u5b50 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250611231130-684a0d22248f2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4e3a\u4e86\u51cf\u5c11\u8026\u5408\u548c\u6b67\u4e49&#xff0c;\u6211\u4eec\u91cd\u65b0\u8bbe\u8ba1\u6d88\u606f\u8282\u70b9 MsgNode\u8868\u793a\u6d88\u606f\u8282\u70b9\u7684\u57fa\u7c7b&#xff0c;\u5934\u90e8\u7684\u6d88\u606f\u7528\u8fd9\u4e2a\u7ed3\u6784\u5b58\u50a8\u3002 RecvNode\u8868\u793a\u63a5\u6536\u6d88\u606f\u7684\u8282\u70b9\u3002 SendNode\u8868\u793a\u53d1\u9001\u6d88\u606f\u7684\u8282\u70b9\u3002 \u6211\u4eec\u5c06\u4e0a\u8ff0\u7ed3\u6784\u5b9a\u4e49\u5728MsgNode.h\u4e2d<\/p>\n<h2>\u4e09\u3001MsgNode.h<\/h2>\n<h3>1.\u4ee3\u7801\u90e8\u5206<\/h3>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;string&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;boost\/asio.hpp&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/\u57fa\u7c7b<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MsgNode<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">friend<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CSession<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token function\">MsgNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">short<\/span> max_len<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span><span class=\"token function\">_total_len<\/span><span class=\"token punctuation\">(<\/span>max_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_cur_len<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n_data <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">char<\/span><span class=\"token punctuation\">[<\/span>_total_len <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n_data<span class=\"token punctuation\">[<\/span>_total_len<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token char\">&#039;\\\\0&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token operator\">~<\/span><span class=\"token function\">MsgNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;destruct MsgNode &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">delete<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>_data<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> _total_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n_cur_len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">short<\/span> _cur_len<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5df2\u7ecf\u53d1\u9001\/\u63a5\u6536\u7684\u957f\u5ea6<\/span><br \/>\n<span class=\"token keyword\">short<\/span> _total_len<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> _data<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u63a5\u6536\u6570\u636e<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RecvNode<\/span> <span class=\"token operator\">:<\/span><span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">MsgNode<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token function\">RecvNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">short<\/span> max_len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token keyword\">short<\/span> _msg_id<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u53d1\u9001\u6570\u636e<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SendNode<\/span> <span class=\"token operator\">:<\/span><span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">MsgNode<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token function\">SendNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> msg<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> max_len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token keyword\">short<\/span> _msg_id<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span> <\/p>\n<h3>2.\u4ee3\u7801\u8bb2\u89e3<\/h3>\n<p>\u6211\u4eec\u8fd9\u91cc\u7528MsgNode\u4f5c\u4e3a\u57fa\u7c7b \u7136\u540e\u6536\u53d1\u7528\u4e24\u4e2a\u7c7b\u53bb\u5b9e\u73b0&#xff0c;\u56e0\u4e3a\u6536\u4fe1\u606f\u548c\u53d1\u4fe1\u606f\u90fd\u9700\u8981\u6570\u7ec4\u6765\u5b58\u50a8&#xff0c;\u6240\u4ee5\u5728\u57fa\u7c7b\u6784\u9020\u51fd\u6570\u4e2d\u6211\u4eecnew \u4e00\u4e2a\u6570\u7ec4<\/p>\n<p>\u540c\u65f6\u6536\u6d88\u606f&#xff0c;\u6211\u4eec\u53ea\u77e5\u9053\u6d88\u606fid\u548c\u957f\u5ea6&#xff0c;\u6240\u4ee5\u6784\u9020\u51fd\u6570\u4e2d\u5c31\u662f\u8fd9\u4e24\u4e2a\u53c2\u6570<\/p>\n<p>\u4f46\u53d1\u4fe1\u606f\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u77e5\u9053\u6d88\u606fid \u6d88\u606f\u957f\u5ea6 \u6d88\u606f\u9996\u5730\u5740&#xff0c;\u6240\u4ee5\u6709\u4e09\u4e2a\u53c2\u6570<\/p>\n<p>\u540c\u65f6\u5728\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u76f4\u63a5\u628a\u6570\u636e\u957f\u5ea6\u4f20\u7ed9\u57fa\u7c7b\u4e2d\u6784\u9020\u5373\u53ef<\/p>\n<h3>3.MsgNode\u4e2d\u7c7b\u6784\u9020\u51fd\u6570\u5b9e\u73b0<\/h3>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;MsgNode.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&#034;const.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token class-name\">RecvNode<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">RecvNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">short<\/span> max_len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token operator\">:<\/span><span class=\"token function\">MsgNode<\/span><span class=\"token punctuation\">(<\/span>max_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_msg_id<\/span><span class=\"token punctuation\">(<\/span>msg_id<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name\">SendNode<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">SendNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> msg<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> max_len<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token operator\">:<\/span><span class=\"token function\">MsgNode<\/span><span class=\"token punctuation\">(<\/span>max_len <span class=\"token operator\">&#043;<\/span> HEAD_TOTAL_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_msg_id<\/span><span class=\"token punctuation\">(<\/span>msg_id<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/id<\/span><br \/>\n<span class=\"token keyword\">short<\/span> msg_id_network <span class=\"token operator\">&#061;<\/span><br \/>\nboost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>detail<span class=\"token double-colon punctuation\">::<\/span>socket_ops<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">host_to_network_short<\/span><span class=\"token punctuation\">(<\/span>_msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>msg_id_network<span class=\"token punctuation\">,<\/span> HEAD_ID_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u957f\u5ea6<\/span><br \/>\n<span class=\"token keyword\">short<\/span> msg_len_network <span class=\"token operator\">&#061;<\/span><br \/>\nboost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>detail<span class=\"token double-colon punctuation\">::<\/span>socket_ops<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">host_to_network_short<\/span><span class=\"token punctuation\">(<\/span>max_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_data <span class=\"token operator\">&#043;<\/span> HEAD_ID_LEN<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>msg_len_network<span class=\"token punctuation\">,<\/span> HEAD_DATA_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u6d88\u606f\u4f53<\/span><br \/>\n<span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_data <span class=\"token operator\">&#043;<\/span> HEAD_TOTAL_LEN<span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">,<\/span> msg_len_network<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>4.\u6ce8\u610f\u70b9<\/h3>\n<p>\u5728\u53d1\u4fe1\u606f\u7684\u6784\u9020\u51fd\u6570\u4e2d&#xff0c;\u522b\u5fd8\u8bb0\u8981\u5bf9\u6d88\u606fid\u548c\u6d88\u606f\u957f\u5ea6\u8f6c\u6362\u5b57\u8282\u5e8f<\/p>\n<p><span class=\"token comment\">\/\/id<\/span><br \/>\n<span class=\"token keyword\">short<\/span> msg_id_network <span class=\"token operator\">&#061;<\/span><br \/>\nboost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>detail<span class=\"token double-colon punctuation\">::<\/span>socket_ops<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">host_to_network_short<\/span><span class=\"token punctuation\">(<\/span>_msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u957f\u5ea6<\/span><br \/>\n<span class=\"token keyword\">short<\/span> msg_len_network <span class=\"token operator\">&#061;<\/span><br \/>\nboost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>detail<span class=\"token double-colon punctuation\">::<\/span>socket_ops<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">host_to_network_short<\/span><span class=\"token punctuation\">(<\/span>max_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h2>\u56db\u3001Session\u7c7b\u6539\u5199<\/h2>\n<p>SendNode\u53d1\u9001\u8282\u70b9\u6784\u9020\u65f6&#xff0c;\u5148\u5c06id\u8f6c\u4e3a\u7f51\u7edc\u5b57\u8282\u5e8f&#xff0c;\u7136\u540e\u5199\u5165_data\u6570\u636e\u57df\u3002 \u7136\u540e\u5c06\u8981\u53d1\u9001\u6570\u636e\u7684\u957f\u5ea6\u8f6c\u4e3a\u5927\u7aef\u5b57\u8282\u5e8f&#xff0c;\u5199\u5165_data\u6570\u636e\u57df&#xff0c;\u6ce8\u610f\u8981\u504f\u79fbHEAD_ID_LEN\u957f\u5ea6\u3002 \u6700\u540e\u5c06\u8981\u53d1\u9001\u7684\u6570\u636emsg\u5199\u5165_data\u6570\u636e\u57df&#xff0c;\u6ce8\u610f\u8981\u504f\u79fb HEAD_ID_LEN&#043;HEAD_DATA_LEN<\/p>\n<h3>CSession.h<\/h3>\n<p>\u56e0\u4e3a\u6211\u4eec\u8fd9\u91cc\u8bbe\u7f6e\u4e86\u4e09\u4e2a\u7c7b&#xff0c;\u4e0d\u518d\u662f\u7b2c\u516b\u7ae0\u7684\u90a3\u6837\u5168\u90e8\u7528\u4e00\u4e2a\u7c7bMsgNode\u4e86 \u6240\u4ee5\u6211\u4eec\u8fd9\u91cc\u8981\u6539\u4e00\u4e0b<\/p>\n<p>std<span class=\"token double-colon punctuation\">::<\/span>queue<span class=\"token operator\">&lt;<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>SendNode<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">&gt;<\/span> _send_que<span class=\"token punctuation\">;<\/span><br \/>\nstd<span class=\"token double-colon punctuation\">::<\/span>mutex _send_lock<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u6536\u5230\u7684\u6d88\u606f\u7ed3\u6784<\/span><br \/>\nstd<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>RecvNode<span class=\"token operator\">&gt;<\/span> _recv_msg_node<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> _b_head_parse<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u6536\u5230\u7684\u5934\u90e8\u7ed3\u6784<\/span><br \/>\nstd<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>MsgNode<span class=\"token operator\">&gt;<\/span> _recv_head_node<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5206\u522b\u7528SendNode RecvNode MsgNode \u53bb\u8868\u793a\u6536\u53d1\u6570\u636e\u548c\u6536\u53d1\u6570\u636e\u7684\u5934\u90e8<\/p>\n<h3>CSession::Send<\/h3>\n<p>\u8fd9\u91cc\u5728\u53d1\u9001\u7684\u65f6\u5019\u6211\u4eec\u9700\u8981\u628a\u6d88\u606fid\u4e5f\u4f20\u8fdb\u6765<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">CSession<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> msg<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> max_length<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msgid<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>lock_guard<span class=\"token operator\">&lt;<\/span>std<span class=\"token double-colon punctuation\">::<\/span>mutex<span class=\"token operator\">&gt;<\/span> <span class=\"token function\">lock<\/span><span class=\"token punctuation\">(<\/span>_send_lock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> send_que_size <span class=\"token operator\">&#061;<\/span> _send_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>send_que_size <span class=\"token operator\">&gt;<\/span> MAX_SENDQUE<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;session: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><br \/>\n        _uuid <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; send que fulled, size is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> MAX_SENDQUE <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    _send_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token generic-function\"><span class=\"token function\">make_shared<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>SendNode<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">,<\/span> max_length<span class=\"token punctuation\">,<\/span> msgid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;<br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>send_que_size<span class=\"token operator\">&gt;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">auto<\/span><span class=\"token operator\">&amp;<\/span> msgnode <span class=\"token operator\">&#061;<\/span> _send_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">front<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">async_write<\/span><span class=\"token punctuation\">(<\/span>_socket<span class=\"token punctuation\">,<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">buffer<\/span><br \/>\n    <span class=\"token punctuation\">(<\/span>msgnode<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> msgnode<span class=\"token operator\">-&gt;<\/span>_total_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>CSession<span class=\"token double-colon punctuation\">::<\/span>HandleWrite<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> std<span class=\"token double-colon punctuation\">::<\/span>placeholders<span class=\"token double-colon punctuation\">::<\/span>_1<span class=\"token punctuation\">,<\/span> <span class=\"token function\">SharedSelf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u57fa\u672c\u4e0a\u548c\u7b2c\u516b\u7ae0\u7684\u4e00\u6837&#xff0c;\u5c31\u6539\u5199\u4e86\u8fd9\u91cc<\/p>\n<p>_send_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token generic-function\"><span class=\"token function\">make_shared<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>SendNode<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">,<\/span> max_length<span class=\"token punctuation\">,<\/span> msgid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h3>CSession::HandleRead<\/h3>\n<p>\u5728\u8bfb\u6570\u636e\u8fdb\u884c\u89e3\u6790\u7684\u65f6\u5019&#xff0c;\u8981\u7528\u4ee5\u4e0b\u7684\u7247\u6bb5\u5199\u6cd5<\/p>\n<p>\u6bd4\u5982\u4e00\u5f00\u59cb\u5728\u5224\u65ad\u6536\u5165\u6570\u636e\u4e0d\u8db3\u5934\u90e8\u5927\u5c0f\u7684\u65f6\u5019&#xff0c;\u8bb0\u5f97\u662f4\u5b57\u8282&#xff0c;\u4e0d\u518d\u662f2\u5b57\u8282\u4e86 \u56e0\u4e3a\u6b64\u65f6\u5934\u90e8\u5305\u542b\u6d88\u606fid  \u6d88\u606f\u957f\u5ea6  \u6240\u4ee5\u8fd9\u91cc\u7528HEAD_TOTAL_LEN\u800c\u4e0d\u662fHEAD_HEAD_LEN<\/p>\n<p><span class=\"token comment\">\/\/\u6536\u5230\u7684\u6570\u636e\u4e0d\u8db3\u5934\u90e8\u5927\u5c0f<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>bytes_transferred <span class=\"token operator\">&#043;<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_cur_len <span class=\"token operator\">&lt;<\/span> HEAD_TOTAL_LEN<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><br \/>\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7136\u540e\u5728\u8c03\u7528Send\u53d1\u9001\u56de\u5ba2\u6237\u7aef\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u9700\u8981\u5bf9\u4f20\u5165\u7684<font color=\"red\">\u6d88\u606fid <\/font>\u548c <font color=\"red\">\u6d88\u606f\u957f\u5ea6<\/font>\u8fd9\u4e24\u4e2a\u53c2\u6570\u8fdb\u884c\u8f6c\u4e3a\u7f51\u7edc\u683c\u5f0f<\/p>\n<p><span class=\"token comment\">\/\/\u53d6id<\/span><br \/>\nmsg_id <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>msg_id<span class=\"token punctuation\">,<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> HEAD_ID_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nmsg_id <span class=\"token operator\">&#061;<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>detail<span class=\"token double-colon punctuation\">::<\/span>socket_ops<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">host_to_network_short<\/span><span class=\"token punctuation\">(<\/span>msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u672c\u6587\u4ecb\u7ecd\u4e86\u670d\u52a1\u5668\u903b\u8f91\u548c\u7f51\u7edc\u5c42\u7684\u8bbe\u8ba1&#xff0c;\u5e76\u4e14\u57fa\u4e8e\u8fd9\u4e2a\u67b6\u6784&#xff0c;\u5b8c\u5584\u4e86\u6d88\u606f\u53d1\u9001\u7ed3\u6784&#xff0c;\u4e0b\u4e00\u7bc7\u5e26\u7740\u5927\u5bb6\u8bbe\u8ba1\u903b\u8f91\u7c7b\u548c\u903b\u8f91\u961f\u5217 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250611231130-684a0d223194b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u2764\ufe0f \u5982\u679c\u4f60\u89c9\u5f97\u672c\u6587\u5bf9\u4f60\u6709\u5e2e\u52a9&#xff0c;\u6b22\u8fce\u70b9\u8d5e\u3001\u8bc4\u8bba\u4e0e\u6536\u85cf\u3002\u66f4\u591a c&#043;&#043; asio\u7f51\u7edc\u7f16\u7a0b \u5f00\u53d1\u77e5\u8bc6&#xff0c;\u656c\u8bf7\u5173\u6ce8\u540e\u7eed\u66f4\u65b0&#xff01;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb815\u6b21\uff0c\u70b9\u8d5e17\u6b21\uff0c\u6536\u85cf13\u6b21\u3002\u672c\u6587\u6982\u8ff0\u57fa\u4e8e\u5b9e\u73b0\u7684\u670d\u52a1\u5668\u903b\u8f91\u5c42\u7ed3\u6784\uff0c\u5e76\u4e14\u5b8c\u5584\u4e4b\u524d\u8bbe\u8ba1\u7684\u6d88\u606f\u7ed3\u6784\u3002\u56e0\u4e3a\u4e3a\u4e86\u7b80\u5316\u7c98\u5305\u5904\u7406\uff0c\u6211\u4eec\u7b80\u5316\u4e86\u53d1\u9001\u6570\u636e\u7684\u7ed3\u6784,\u8fd9\u6b21\u6211\u4eec\u7ed9\u51fa\u5b8c\u6574\u7684\u6d88\u606f\u8bbe\u8ba1\uff0c\u4ee5\u53ca\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/p>\n","protected":false},"author":2,"featured_media":43321,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,2205,43,78],"topic":[],"class_list":["post-43326","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-casio","tag-43","tag-78"],"yoast_head":"<!-- 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