{"id":84398,"date":"2026-07-26T12:50:43","date_gmt":"2026-07-26T04:50:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/84398.html"},"modified":"2026-07-26T12:50:43","modified_gmt":"2026-07-26T04:50:43","slug":"asio%e5%bc%82%e6%ad%a5%e9%80%9a%e4%bf%a1-%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%bd%91%e7%bb%9c%e5%b1%82%e5%92%8c%e9%80%bb%e8%be%91%e5%b1%82%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/84398.html","title":{"rendered":"ASIO\u5f02\u6b65\u901a\u4fe1\u2014\u2014\u670d\u52a1\u5668\u7f51\u7edc\u5c42\u548c\u903b\u8f91\u5c42\u8bbe\u8ba1"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/li>\n<li>\u7f51\u7edc\u5c42\u8bbe\u8ba1<\/li>\n<li>\n<ul>\n<li>\u6d88\u606f\u5934<\/li>\n<li>Session\u7c7b<\/li>\n<\/ul>\n<\/li>\n<li>\u903b\u8f91\u5c42\u8bbe\u8ba1<\/li>\n<li>\n<ul>\n<li>\u4f18\u96c5\u9000\u51fa<\/li>\n<li>\u5355\u4f8b\u6a21\u677f\u7c7b<\/li>\n<li>LogicSystem\u5355\u4f8b\u7c7b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u53c2\u8003\u539f\u6587<\/p>\n<h2>\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260726045042-6a659222134b9.png\" alt=\"\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260726045042-6a65922240cd3.png\" alt=\"\" \/><\/p>\n<h2>\u7f51\u7edc\u5c42\u8bbe\u8ba1<\/h2>\n<h3>\u6d88\u606f\u5934<\/h3>\n<p>\u6211\u4eec\u4e4b\u524d\u7684\u6d88\u606f\u5934\u4ec5\u5305\u542b\u6570\u636e\u57df\u7684\u957f\u5ea6&#xff0c;\u4f46\u662f\u8981\u8fdb\u884c\u903b\u8f91\u5904\u7406&#xff0c;\u5c31\u9700\u8981\u4f20\u9012\u4e00\u4e2aid\u5b57\u6bb5\u8868\u793a\u8981\u5904\u7406\u7684\u6d88\u606fid&#xff0c;\u5f53\u7136\u53ef\u4ee5\u4e0d\u5728\u5305\u5934\u4f20id\u5b57\u6bb5&#xff0c;\u5c06id\u5e8f\u5217\u5316\u5230\u6d88\u606f\u4f53\u4e5f\u662f\u53ef\u4ee5\u7684&#xff0c;\u4f46\u662f\u6211\u4eec\u4e3a\u4e86\u4fbf\u4e8e\u5904\u7406\u4e5f\u4fbf\u4e8e\u56de\u8c03\u903b\u8f91\u5c42\u5bf9\u5e94\u7684\u51fd\u6570&#xff0c;\u6700\u597d\u662f\u5c06id\u5199\u5165\u5305\u5934\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260726045042-6a65922268396.png\" alt=\"\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260726045042-6a6592227764b.png\" alt=\"\" \/><\/p>\n<p>:::info \u4e3a\u4e86\u51cf\u5c11\u8026\u5408\u548c\u6b67\u4e49&#xff0c;\u91cd\u65b0\u8bbe\u8ba1\u6d88\u606f\u8282\u70b9\u3002<\/p>\n<ul>\n<li>MsgNode\u8868\u793a\u6d88\u606f\u8282\u70b9\u7684\u57fa\u7c7b&#xff0c;\u5934\u90e8\u7684\u6d88\u606f\u7528\u8fd9\u4e2a\u7ed3\u6784\u5b58\u50a8\u3002<\/li>\n<li>RecvNode\u8868\u793a\u63a5\u6536\u6d88\u606f\u7684\u8282\u70b9\u3002<\/li>\n<li>SendNode\u8868\u793a\u53d1\u9001\u6d88\u606f\u7684\u8282\u70b9\u3002<\/li>\n<\/ul>\n<p>:::<\/p>\n<p><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;cstring&gt;<\/span> <span class=\"token comment\">\/\/ \u9700\u8981\u5f15\u5165 memset \u7684\u5934\u6587\u4ef6<\/span><\/span><\/p>\n<p><span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6d88\u606f\u8282\u70b9\u57fa\u7c7b&#xff1a;\u7528\u4e8e\u7ba1\u7406\u6d88\u606f\u7684\u5185\u5b58\u7f13\u51b2\u533a<\/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\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6784\u9020\u51fd\u6570&#xff1a;\u521d\u59cb\u5316\u7f13\u51b2\u533a\u5927\u5c0f<\/span><br \/>\n    <span class=\"token comment\">\/\/ max_len: \u671f\u671b\u7684\u6d88\u606f\u6700\u5927\u957f\u5ea6<\/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> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5206\u914d\u5185\u5b58&#xff0c;\u5927\u5c0f\u4e3a max_len &#043; 1&#xff08;\u591a\u51fa\u76841\u4e2a\u5b57\u8282\u7528\u4e8e\u5b58\u653e\u5b57\u7b26\u4e32\u7ed3\u675f\u7b26 &#039;\\\\0&#039;&#xff09;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u672b\u5c3e\u7684 () \u4f1a\u5c06\u5206\u914d\u7684\u5185\u5b58\u521d\u59cb\u5316\u4e3a 0&#xff08;\u5373\u5168\u7a7a\u5b57\u7b26&#xff09;<\/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><\/p>\n<p>        <span class=\"token comment\">\/\/ \u663e\u5f0f\u5c06\u6700\u540e\u4e00\u4e2a\u5b57\u8282\u8bbe\u4e3a\u5b57\u7b26\u4e32\u7ed3\u675f\u7b26&#xff0c;\u786e\u4fdd\u5b89\u5168<\/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 comment\">\/\/ \u6790\u6784\u51fd\u6570&#xff1a;\u91ca\u653e\u52a8\u6001\u5206\u914d\u7684\u5185\u5b58<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">MsgNode<\/span><span class=\"token punctuation\">(<\/span><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;destruct MsgNode&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u91ca\u653e\u901a\u8fc7 new[] \u5206\u914d\u7684\u5b57\u7b26\u6570\u7ec4&#xff0c;\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f<\/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 comment\">\/\/ \u6e05\u7a7a\u8282\u70b9&#xff1a;\u91cd\u7f6e\u5f53\u524d\u6570\u636e&#xff0c;\u65b9\u4fbf\u590d\u7528\u8be5\u8282\u70b9<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5c06\u6570\u636e\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u6e05\u96f6&#xff08;\u4e0d\u5305\u62ec\u6700\u540e\u4e00\u4e2a &#039;\\\\0&#039; \u5360\u4f4d\u7b26&#xff09;<\/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        <span class=\"token comment\">\/\/ \u5c06\u5f53\u524d\u5df2\u5199\u957f\u5ea6\u91cd\u7f6e\u4e3a 0<\/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\">\/\/ \u5f53\u524d\u7f13\u51b2\u533a\u4e2d\u5df2\u5199\u5165\u7684\u6570\u636e\u957f\u5ea6<\/span><br \/>\n    <span class=\"token keyword\">short<\/span> _total_len<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7f13\u51b2\u533a\u7684\u6700\u5927\u603b\u5bb9\u91cf&#xff08;\u4e0d\u542b\u672b\u5c3e\u7ed3\u675f\u7b26&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> _data<span class=\"token punctuation\">;<\/span>      <span class=\"token comment\">\/\/ \u6307\u5411\u52a8\u6001\u5206\u914d\u7684\u5b57\u7b26\u7f13\u51b2\u533a\u7684\u6307\u9488<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u63a5\u6536\u6d88\u606f\u8282\u70b9\u7c7b&#xff1a;\u7ee7\u627f\u81ea MsgNode&#xff0c;\u4e13\u95e8\u7528\u4e8e\u5904\u7406\u63a5\u6536\u5230\u7684\u7f51\u7edc\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> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6784\u9020\u51fd\u6570&#xff1a;\u9700\u8981\u5b9e\u73b0\u5bf9\u57fa\u7c7b\u7684\u521d\u59cb\u5316\u4ee5\u53ca\u81ea\u8eab\u6210\u5458 _msg_id \u7684\u521d\u59cb\u5316<\/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> <span class=\"token comment\">\/\/ \u63a5\u6536\u5230\u7684\u6d88\u606f\u7c7b\u578b ID<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u53d1\u9001\u6d88\u606f\u8282\u70b9\u7c7b&#xff1a;\u7ee7\u627f\u81ea MsgNode&#xff0c;\u4e13\u95e8\u7528\u4e8e\u5904\u7406\u51c6\u5907\u53d1\u9001\u7684\u7f51\u7edc\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> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6784\u9020\u51fd\u6570&#xff1a;\u901a\u5e38\u9700\u8981\u5c06\u4f20\u5165\u7684 msg \u5b57\u7b26\u4e32\u6570\u636e\u62f7\u8d1d\u5230\u57fa\u7c7b\u7684 _data \u7f13\u51b2\u533a\u4e2d<\/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> <span class=\"token comment\">\/\/ \u51c6\u5907\u53d1\u9001\u7684\u6d88\u606f\u7c7b\u578b ID<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\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><\/p>\n<p><span class=\"token comment\">\/\/ RecvNode&#xff08;\u63a5\u6536\u8282\u70b9&#xff09;\u7684\u6784\u9020\u51fd\u6570\u5b9e\u73b0<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f5c\u7528&#xff1a;\u8c03\u7528\u57fa\u7c7b MsgNode \u6784\u9020\u51fd\u6570\u5206\u914d\u6307\u5b9a\u5927\u5c0f\u7684\u7f13\u51b2\u533a&#xff0c;\u5e76\u8bb0\u5f55\u6d88\u606f ID<\/span><br \/>\n<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 comment\">\/\/ \u663e\u793a\u8c03\u7528\u57fa\u7c7b\u6784\u9020\u51fd\u6570&#xff0c;\u521d\u59cb\u5316\u57fa\u7c7b\u4e2d\u7684\u5185\u5b58\u7f13\u51b2\u533a<\/span><br \/>\n      <span class=\"token function\">_msg_id<\/span><span class=\"token punctuation\">(<\/span>msg_id<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u5b50\u7c7b\u7279\u6709\u7684\u6d88\u606f ID \u53d8\u91cf<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u63a5\u6536\u8282\u70b9\u7684\u7f13\u51b2\u533a\u901a\u5e38\u5728\u540e\u7eed\u7f51\u7edc\u63a5\u6536\u6570\u636e&#xff08;\u5982 async_read&#xff09;\u65f6\u624d\u4f1a\u88ab\u586b\u5145&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u56e0\u6b64\u6784\u9020\u51fd\u6570\u5185\u90e8\u4e0d\u9700\u8981\u989d\u5916\u8fdb\u884c\u6570\u636e\u62f7\u8d1d\u3002<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ SendNode&#xff08;\u53d1\u9001\u8282\u70b9&#xff09;\u7684\u6784\u9020\u51fd\u6570\u5b9e\u73b0<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f5c\u7528&#xff1a;\u6784\u5efa\u5e26\u6709\u201c\u7f51\u7edc\u5305\u5934&#xff08;ID &#043; \u957f\u5ea6&#xff09;&#043; \u5305\u4f53&#xff08;\u5b9e\u9645\u6570\u636e&#xff09;\u201d\u7684\u5b8c\u6574\u53d1\u9001\u7f13\u51b2\u533a<\/span><br \/>\n<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 comment\">\/\/ \u57fa\u7c7b\u5206\u914d\u7684\u603b\u957f\u5ea6 &#061; \u5b9e\u9645\u6570\u636e\u957f\u5ea6 &#043; \u5305\u5934\u603b\u957f\u5ea6<\/span><br \/>\n      <span class=\"token function\">_msg_id<\/span><span class=\"token punctuation\">(<\/span>msg_id<span class=\"token punctuation\">)<\/span>                    <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u5b50\u7c7b\u7279\u6709\u7684\u6d88\u606f ID \u53d8\u91cf<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u5904\u7406\u5305\u5934\u4e2d\u7684\u3010\u6d88\u606f ID\u3011&#xff1a;\u5c06\u672c\u5730\u5b57\u8282\u5e8f&#xff08;\u4e3b\u673a\u5e8f&#xff09;\u8f6c\u6362\u4e3a\u7f51\u7edc\u5b57\u8282\u5e8f&#xff08;\u5927\u7aef\u5e8f&#xff09;&#xff0c;\u786e\u4fdd\u8de8\u5e73\u53f0\u4f20\u8f93\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">short<\/span> msg_id_host <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><br \/>\n    <span class=\"token comment\">\/\/ \u5c06\u8f6c\u6362\u540e\u7684\u7f51\u7edc\u5b57\u8282\u5e8f ID \u62f7\u8d1d\u5230\u7f13\u51b2\u533a\u7684\u6700\u524d\u9762&#xff08;\u8d77\u59cb\u4f4d\u7f6e _data&#xff09;<\/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_host<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\">\/\/ 2. \u5904\u7406\u5305\u5934\u4e2d\u7684\u3010\u6570\u636e\u957f\u5ea6\u3011&#xff1a;\u540c\u6837\u5c06\u957f\u5ea6\u8f6c\u4e3a\u7f51\u7edc\u5b57\u8282\u5e8f<\/span><br \/>\n    <span class=\"token keyword\">short<\/span> max_len_host <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>max_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5c06\u7f51\u7edc\u5b57\u8282\u5e8f\u7684\u957f\u5ea6\u7d27\u63a5\u7740\u62f7\u8d1d\u5230 ID \u540e\u9762&#xff08;\u504f\u79fb\u91cf\u4e3a HEAD_ID_LEN&#xff09;<\/span><br \/>\n    <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>max_len_host<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\">\/\/ 3. \u5904\u7406\u5305\u4f53\u3010\u5b9e\u9645\u6570\u636e\u3011&#xff1a;\u5c06\u4f20\u5165\u7684\u5b9e\u9645\u6d88\u606f\u5185\u5bb9 msg \u62f7\u8d1d\u5230\u5305\u5934\u4e4b\u540e<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u504f\u79fb\u91cf\u4e3a ID\u957f\u5ea6 &#043; \u957f\u5ea6\u6570\u636e\u7684\u957f\u5ea6&#xff0c;\u5373\u8df3\u8fc7\u6574\u4e2a\u5305\u5934<\/span><br \/>\n    <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_data <span class=\"token operator\">&#043;<\/span> HEAD_ID_LEN <span class=\"token operator\">&#043;<\/span> HEAD_DATA_LEN<span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">,<\/span> max_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\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\u79fbHEAD_ID_LEN&#043;HEAD_DATA_LEN<\/p>\n<table>\n<tr>\u5b57\u8282\u504f\u79fb\u4f4d\u7f6e0 ~ HEAD_ID_LENHEAD_ID_LEN ~ HEAD_TOTAL_LENHEAD_TOTAL_LEN \u4e4b\u540e<\/tr>\n<tbody>\n<tr>\n<td>\u5b58\u50a8\u5185\u5bb9<\/td>\n<td>\u6d88\u606f ID (\u7f51\u7edc\u5b57\u8282\u5e8f)<\/td>\n<td>\u6570\u636e\u957f\u5ea6 (\u7f51\u7edc\u5b57\u8282\u5e8f)<\/td>\n<td>\u5b9e\u9645\u6d88\u606f\u6587\u672c (msg&#096;)<\/td>\n<\/tr>\n<tr>\n<td>\u5bf9\u5e94\u4ee3\u7801<\/td>\n<td>_data&#096;<\/td>\n<td>_data &#043; HEAD_ID_LEN&#096;<\/td>\n<td>_data &#043; HEAD_ID_LEN &#043; HEAD_DATA_LEN&#096;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Session\u7c7b<\/h3>\n<p>\u56e0\u4e3a\u6d88\u606f\u7ed3\u6784\u6539\u53d8\u4e86&#xff0c;\u6240\u4ee5\u63a5\u6536\u548c\u53d1\u9001\u6570\u636e\u7684\u903b\u8f91\u8981\u505a\u5bf9\u5e94\u7684\u4fee\u6539&#xff0c;\u5148\u4fee\u6539Session\u7c7b\u4e2d\u6536\u53d1\u6d88\u606f\u7ed3\u6784\u5982\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>MsgNode<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">&gt;<\/span> _send_que<span class=\"token punctuation\">;<\/span><br \/>\n    std<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 \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>MsgNode<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 \/>\n    std<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>\u56e0\u4e3a\u5934\u90e8\u6570\u636e\u53ea\u4e3a4\u5b57\u8282&#xff0c;\u6240\u4ee5\u6211\u4eec\u5728Session\u7684\u6784\u9020\u51fd\u6570\u4e2d\u521b\u5efa\u5934\u90e8\u8282\u70b9\u65f6\u9009\u62e9HEAD_TOTAL_LEN(4\u5b57\u8282)\u5927\u5c0f\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u4f5c\u7528&#xff1a;\u521d\u59cb\u5316\u7f51\u7edc\u5957\u63a5\u5b57\u3001\u7ed1\u5b9a\u6240\u5c5e\u670d\u52a1\u5668\u3001\u751f\u6210\u552f\u4e00\u4f1a\u8bdd ID&#xff0c;\u5e76\u521d\u59cb\u5316\u63a5\u6536\u7f51\u7edc\u5305\u5934\u7684\u7f13\u51b2\u533a<\/span><br \/>\n<span class=\"token class-name\">CSession<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">CSession<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>io_context<span class=\"token operator\">&amp;<\/span> io_context<span class=\"token punctuation\">,<\/span> CServer<span class=\"token operator\">*<\/span> server<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">_socket<\/span><span class=\"token punctuation\">(<\/span>io_context<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>      <span class=\"token comment\">\/\/ \u521d\u59cb\u5316 Boost.Asio \u5957\u63a5\u5b57&#xff0c;\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684 I\/O \u4e0a\u4e0b\u6587<\/span><br \/>\n    <span class=\"token function\">_server<\/span><span class=\"token punctuation\">(<\/span>server<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>          <span class=\"token comment\">\/\/ \u4fdd\u5b58\u6307\u5411\u7ba1\u7406\u8be5\u4f1a\u8bdd\u7684\u670d\u52a1\u5668&#xff08;CServer&#xff09;\u7684\u6307\u9488&#xff0c;\u65b9\u4fbf\u540e\u7eed\u56de\u8c03\u6216\u7ba1\u7406<\/span><br \/>\n    <span class=\"token function\">_b_close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>          <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u4f1a\u8bdd\u5173\u95ed\u6807\u5fd7\u4e3a false&#xff08;\u8868\u793a\u5f53\u524d\u4f1a\u8bdd\u5904\u4e8e\u5f00\u542f\u72b6\u6001&#xff09;<\/span><br \/>\n    <span class=\"token function\">_b_head_parse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span>      <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u5305\u5934\u89e3\u6790\u6807\u5fd7\u4e3a false&#xff08;\u8868\u793a\u5c1a\u672a\u89e3\u6790\u5f53\u524d\u63a5\u6536\u5230\u7684\u5305\u5934\u6570\u636e&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u751f\u6210\u4e00\u4e2a\u5168\u7403\u552f\u4e00\u7684\u6807\u8bc6\u7b26&#xff08;UUID&#xff09;&#xff0c;\u7528\u4e8e\u5728\u670d\u52a1\u5668\u4e2d\u552f\u4e00\u6807\u8bc6\u8fd9\u4e2a\u5ba2\u6237\u7aef\u4f1a\u8bdd<\/span><br \/>\n    boost<span class=\"token double-colon punctuation\">::<\/span>uuids<span class=\"token double-colon punctuation\">::<\/span>uuid a_uuid <span class=\"token operator\">&#061;<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>uuids<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">random_generator<\/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><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u5c06\u751f\u6210\u7684 UUID \u5bf9\u8c61\u8f6c\u6362\u4e3a\u6807\u51c6\u5b57\u7b26\u4e32&#xff0c;\u5e76\u8d4b\u503c\u7ed9\u6210\u5458\u53d8\u91cf _uuid<\/span><br \/>\n    _uuid <span class=\"token operator\">&#061;<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>uuids<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>a_uuid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u9884\u5148\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u63a5\u6536\u7f51\u7edc\u5305\u5934\u7684\u7f13\u51b2\u533a\u8282\u70b9<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u957f\u5ea6\u56fa\u5b9a\u4e3a HEAD_TOTAL_LEN&#xff08;\u5373\u201c\u6d88\u606fID\u957f\u5ea6 &#043; \u6570\u636e\u957f\u5ea6\u6570\u636e\u957f\u5ea6\u201d&#xff09;&#xff0c;\u91c7\u7528\u667a\u80fd\u6307\u9488 make_shared \u8fdb\u884c\u5b89\u5168\u7ba1\u7406<\/span><br \/>\n    _recv_head_node <span class=\"token operator\">&#061;<\/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>MsgNode<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>HEAD_TOTAL_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/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    <span class=\"token comment\">\/\/ 1. \u52a0\u9501\u4fdd\u62a4&#xff1a;\u56e0\u4e3a\u53ef\u80fd\u6709\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8c03\u7528\u540c\u4e00\u4e2a\u4f1a\u8bdd\u7684 Send \u51fd\u6570&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4f7f\u7528 lock_guard \u81ea\u52a8\u7ba1\u7406\u4e92\u65a5\u9501&#xff0c;\u9632\u6b62\u591a\u7ebf\u7a0b\u540c\u65f6\u64cd\u4f5c\u53d1\u9001\u961f\u5217 &#096;_send_que&#096; \u5bfc\u81f4\u5d29\u6e83<\/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><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u68c0\u67e5\u5f53\u524d\u53d1\u9001\u961f\u5217\u7684\u957f\u5ea6<\/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><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5982\u679c\u961f\u5217\u4e2d\u7684\u7f51\u7edc\u5305\u6570\u91cf\u8d85\u8fc7\u4e86\u8bbe\u5b9a\u7684\u6700\u5927\u9650\u5236&#xff08;\u9632\u6b62\u5185\u5b58\u88ab\u5f85\u53d1\u9001\u6570\u636e\u6491\u7206&#xff09;<\/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> _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> <span class=\"token comment\">\/\/ \u62d2\u7edd\u672c\u6b21\u53d1\u9001\u8bf7\u6c42&#xff0c;\u76f4\u63a5\u8fd4\u56de<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u6784\u5efa\u53d1\u9001\u8282\u70b9\u5e76\u5165\u961f&#xff1a;\u5c06\u539f\u59cb\u6570\u636e\u6253\u5305\u6210\u89c4\u8303\u7684 SendNode&#xff08;\u5305\u5934&#043;\u5305\u4f53&#xff09;&#xff0c;\u5e76\u5b58\u5165\u667a\u80fd\u6307\u9488\u961f\u5217\u4e2d<\/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><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u68c0\u67e5\u662f\u5426\u9700\u8981\u542f\u52a8\u5f02\u6b65\u5199\u5165&#xff1a;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5982\u679c\u53d1\u73b0\u5728\u653e\u5165\u5f53\u524d\u5305\u4e4b\u524d&#xff0c;\u961f\u5217\u91cc\u5c31\u5df2\u7ecf\u6709\u6570\u636e\u5728\u6392\u961f\u4e86&#xff08;send_que_size &gt; 0&#xff09;&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bf4\u660e\u6b64\u65f6\u5e95\u5c42\u5fc5\u5b9a\u5df2\u7ecf\u6709\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684 async_write \u5faa\u73af\u5728\u5904\u7406\u961f\u5217\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4e3a\u4e86\u9632\u6b62\u5e95\u5c42\u591a\u4e2a async_write \u5e76\u53d1\u5f15\u53d1\u6570\u636e\u4e71\u5e8f\u6216\u5d29\u6e83&#xff0c;\u8fd9\u91cc\u76f4\u63a5\u8fd4\u56de&#xff0c;\u8ba9\u5e95\u5c42\u7684\u5faa\u73af\u7ee7\u7eed\u6d88\u8d39\u961f\u5217\u5373\u53ef\u3002<\/span><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><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u8d70\u5230\u8fd9\u91cc\u8bf4\u660e send_que_size &#061;&#061; 0&#xff0c;\u5373\u6b64\u524d\u961f\u5217\u4e3a\u7a7a&#xff0c;\u5f53\u524d\u5305\u662f\u961f\u5217\u91cc\u7684\u552f\u4e00\u4e00\u4e2a\u5305\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u610f\u5473\u7740\u5e95\u5c42\u5f53\u524d\u6ca1\u6709\u6d3b\u8dc3\u7684\u5f02\u6b65\u5199\u5165\u5faa\u73af&#xff0c;\u6211\u4eec\u9700\u8981\u624b\u52a8\u201c\u70b9\u706b\u201d&#xff0c;\u542f\u52a8\u7b2c\u4e00\u6b21\u5f02\u6b65\u5199\u5165\u3002<\/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> <span class=\"token comment\">\/\/ \u83b7\u53d6\u961f\u5217\u5934\u90e8\u7684\u53d1\u9001\u8282\u70b9<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8c03\u7528 Boost.Asio \u5f02\u6b65\u5199\u5165\u7f51\u7edc\u6570\u636e<\/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><br \/>\n        _socket<span class=\"token punctuation\">,<\/span>                                                    <span class=\"token comment\">\/\/ \u7ed1\u5b9a\u7684\u7f51\u7edc\u5957\u63a5\u5b57<\/span><br \/>\n        boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">buffer<\/span><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>   <span class=\"token comment\">\/\/ \u8981\u53d1\u9001\u7684\u6570\u636e\u7f13\u51b2\u533a\u53ca\u603b\u957f\u5ea6<\/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>                           <span class=\"token comment\">\/\/ \u5199\u5165\u5b8c\u6210\u540e\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n                  <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span>                                             <span class=\"token comment\">\/\/ \u5f53\u524d\u4f1a\u8bdd\u5bf9\u8c61\u7684\u6307\u9488<\/span><br \/>\n                  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 comment\">\/\/ \u5360\u4f4d\u7b26&#xff0c;\u4f20\u9012\u9519\u8bef\u7801 error_code<\/span><br \/>\n                  <span class=\"token function\">SharedSelf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>                                     <span class=\"token comment\">\/\/ \u5ef6\u957f\u751f\u547d\u5468\u671f&#xff1a;\u4f20\u9012\u5f53\u524d Session \u7684\u667a\u80fd\u6307\u9488&#xff0c;\u9632\u6b62\u56de\u8c03\u89e6\u53d1\u524d Session \u88ab\u9500\u6bc1<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/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>std<span class=\"token double-colon punctuation\">::<\/span>string msg<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msgid<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u52a0\u9501\u4fdd\u62a4&#xff1a;\u56e0\u4e3a\u591a\u4e2a\u7ebf\u7a0b\u53ef\u80fd\u4f1a\u5e76\u53d1\u8c03\u7528\u540c\u4e00\u4e2a\u4f1a\u8bdd\u7684 Send \u51fd\u6570&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4f7f\u7528 lock_guard \u9501\u4f4f\u4e92\u65a5\u91cf _send_lock&#xff0c;\u4fdd\u62a4\u5171\u4eab\u961f\u5217 _send_que \u7684\u7ebf\u7a0b\u5b89\u5168<\/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><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u68c0\u67e5\u5f53\u524d\u53d1\u9001\u961f\u5217\u7684\u957f\u5ea6&#xff08;\u79ef\u538b\u7684\u7f51\u7edc\u5305\u6570\u91cf&#xff09;<\/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><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5982\u679c\u79ef\u538b\u7684\u5305\u6570\u91cf\u8d85\u8fc7\u4e86\u8bbe\u5b9a\u7684\u6700\u5927\u9608\u503c&#xff0c;\u8bf4\u660e\u53d1\u9001\u901f\u5ea6\u8fdc\u6162\u4e8e\u751f\u6210\u901f\u5ea6&#xff08;\u53ef\u80fd\u7f51\u7edc\u62e5\u5835\u6216\u5bf9\u7aef\u4e0d\u63a5\u6536&#xff09;<\/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> _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> <span class=\"token comment\">\/\/ \u4e3a\u4e86\u9632\u6b62\u5185\u5b58\u7206\u6389&#xff0c;\u76f4\u63a5\u62d2\u7edd\u5e76\u62e6\u622a\u672c\u6b21\u53d1\u9001\u8bf7\u6c42<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u6784\u5efa\u53d1\u9001\u8282\u70b9\u5e76\u5165\u961f&#xff1a;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u901a\u8fc7 msg.c_str() \u63d0\u53d6\u5b57\u7b26\u4e32\u5e95\u5c42\u7684\u5b57\u7b26\u6307\u9488&#xff0c;\u901a\u8fc7 msg.length() \u83b7\u53d6\u5b9e\u9645\u5b57\u8282\u957f\u5ea6&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6253\u5305\u6210\u5e26\u6709\u7f51\u7edc\u5305\u5934\u7684 SendNode&#xff0c;\u5e76\u5c06\u5176\u667a\u80fd\u6307\u9488\u538b\u5165\u53d1\u9001\u961f\u5217\u672b\u5c3e<\/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><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> msg<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> msgid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u68c0\u67e5\u662f\u5426\u9700\u8981\u89e6\u53d1\u5f02\u6b65\u5199\u5165&#xff1a;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5982\u679c\u5728\u5f53\u524d\u5305\u5165\u961f\u4e4b\u524d&#xff0c;\u961f\u5217\u91cc\u5c31\u5df2\u7ecf\u6709\u8001\u6570\u636e\u5728\u6392\u961f\u4e86&#xff08;send_que_size &gt; 0&#xff09;&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u610f\u5473\u7740\u5e95\u5c42\u5fc5\u7136\u5df2\u7ecf\u6709\u4e00\u4e2a\u6d3b\u8dc3\u7684 async_write \u94fe\u5f0f\u5faa\u73af\u6b63\u5728\u4f9d\u6b21\u53d1\u9001\u961f\u5217\u4e2d\u7684\u6570\u636e\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4e3a\u4e86\u9632\u6b62\u591a\u4e2a async_write \u540c\u65f6\u5e76\u53d1\u5f15\u53d1\u5e95\u5c42\u6570\u636e\u4ea4\u7ec7\u4e71\u5e8f\u6216\u5d29\u6e83&#xff0c;\u8fd9\u91cc\u76f4\u63a5\u8fd4\u56de\u3002<\/span><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><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u8d70\u5230\u8fd9\u91cc\u8bf4\u660e send_que_size &#061;&#061; 0&#xff08;\u5373\u5728\u5f53\u524d\u5305\u5165\u961f\u524d&#xff0c;\u961f\u5217\u662f\u5b8c\u5168\u7a7a\u7684&#xff09;\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u4ee3\u8868\u5f53\u524d\u5e95\u5c42\u6ca1\u6709\u8fd0\u884c\u4e2d\u7684\u5f02\u6b65\u5199\u5165\u4efb\u52a1&#xff0c;\u9700\u8981\u6211\u4eec\u624b\u52a8\u89e6\u53d1\u201c\u7b2c\u4e00\u6b21\u201d\u5f02\u6b65\u5199\u64cd\u4f5c\u3002<\/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> <span class=\"token comment\">\/\/ \u83b7\u53d6\u521a\u521a\u5b58\u5165\u961f\u5217\u5934\u90e8\u7684\u53d1\u9001\u8282\u70b9<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u542f\u52a8 Boost.Asio \u7684\u5f02\u6b65\u5199\u5165\u64cd\u4f5c<\/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><br \/>\n        _socket<span class=\"token punctuation\">,<\/span>                                                    <span class=\"token comment\">\/\/ \u5f53\u524d\u4f1a\u8bdd\u7684\u7f51\u7edc\u901a\u4fe1\u5957\u63a5\u5b57<\/span><br \/>\n        boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">buffer<\/span><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>   <span class=\"token comment\">\/\/ \u8981\u53d1\u9001\u7684\u6570\u636e\u7f13\u51b2\u533a&#xff08;\u5305\u542b\u5305\u5934\u52a0\u5305\u4f53&#xff09;\u53ca\u603b\u957f\u5ea6<\/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>                           <span class=\"token comment\">\/\/ \u5199\u5165\u5b8c\u6210\u540e\u81ea\u52a8\u89e6\u53d1\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n                  <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span>                                             <span class=\"token comment\">\/\/ \u6307\u5411\u5f53\u524d CSession \u5bf9\u8c61\u7684\u6307\u9488<\/span><br \/>\n                  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 comment\">\/\/ \u5360\u4f4d\u7b26&#xff0c;\u63a5\u6536\u5e95\u5c42\u4f20\u9012\u7684\u9519\u8bef\u7801 (error_code)<\/span><br \/>\n                  <span class=\"token function\">SharedSelf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>                                     <span class=\"token comment\">\/\/ \u901a\u8fc7\u667a\u80fd\u6307\u9488\u5ef6\u957f\u5f53\u524d Session \u7684\u751f\u547d\u5468\u671f&#xff0c;\u9632\u6b62\u5728\u56de\u8c03\u89e6\u53d1\u524d\u5bf9\u8c61\u88ab\u610f\u5916\u6790\u6784<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/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\">HandleRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>system<span class=\"token double-colon punctuation\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> error<span class=\"token punctuation\">,<\/span> size_t bytes_transferred<span class=\"token punctuation\">,<\/span> std<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span> shared_self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ copy_len \u8bb0\u5f55\u5f53\u524d\u4ece\u5e95\u5c42\u63a5\u6536\u7f13\u51b2\u533a _data \u4e2d&#xff0c;\u5df2\u7ecf\u5411\u8282\u70b9\u7f13\u51b2\u533a\u8f6c\u79fb\/\u6d88\u8017\u4e86\u591a\u5c11\u5b57\u8282<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> copy_len <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u53ea\u8981\u672c\u6b21\u6536\u5230\u7684\u6570\u636e\u8fd8\u6ca1\u88ab\u6d88\u8017\u5b8c&#xff0c;\u5c31\u5faa\u73af\u8fdb\u884c\u72b6\u6001\u673a\u903b\u8f91\u5904\u7406<\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>bytes_transferred <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u3010\u72b6\u6001\u4e00\u3011&#xff1a;\u5f53\u524d\u6b63\u5728\u89e3\u6790\u56fa\u5b9a\u5305\u5934<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>_b_head_parse<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u8fb9\u754c\u60c5\u51b5 A&#xff1a;\u672c\u6b21\u6536\u5230\u7684\u603b\u6570\u636e &#043; \u4e4b\u524d\u6b8b\u7559\u7684\u5305\u5934\u6570\u636e&#xff0c;\u4f9d\u7136\u51d1\u4e0d\u591f\u4e00\u4e2a\u5b8c\u6574\u7684\u5305\u5934\u957f\u5ea6 (HEAD_TOTAL_LEN)<\/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 comment\">\/\/ \u628a\u5f53\u524d\u6536\u5230\u7684\u6240\u6709\u6570\u636e\u5168\u6570\u62fc\u63a5\u5230\u5305\u5934\u8282\u70b9\u4e2d<\/span><br \/>\n                        <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_recv_head_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">,<\/span> _data <span class=\"token operator\">&#043;<\/span> copy_len<span class=\"token punctuation\">,<\/span> bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        _recv_head_node<span class=\"token operator\">-&gt;<\/span>_cur_len <span class=\"token operator\">&#043;&#061;<\/span> bytes_transferred<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u66f4\u65b0\u5305\u5934\u5f53\u524d\u5df2\u5b58\u957f\u5ea6<\/span><\/p>\n<p>                        <span class=\"token comment\">\/\/ \u6e05\u7a7a\u5e95\u5c42\u63a5\u6536\u7f13\u51b2\u533a&#xff0c;\u7ee7\u7eed\u6295\u9012\u4e0b\u4e00\u6b21\u5f02\u6b65\u8bfb&#xff0c;\u7b49\u5f85\u540e\u7eed\u6570\u636e<\/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> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        _socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><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><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> MAX_LENGTH<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>HandleRead<span class=\"token punctuation\">,<\/span> <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> std<span class=\"token double-colon punctuation\">::<\/span>placeholders<span class=\"token double-colon punctuation\">::<\/span>_2<span class=\"token punctuation\">,<\/span> shared_self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9000\u51fa\u5f53\u524d\u56de\u8c03&#xff0c;\u7b49\u5f85\u4e0b\u4e00\u6b21\u6570\u636e\u5230\u6765<\/span><br \/>\n                    <span class=\"token punctuation\">}<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u6b63\u5e38\u60c5\u51b5\/\u8fb9\u754c\u60c5\u51b5 B&#xff1a;\u5f53\u524d\u62e5\u6709\u7684\u6570\u636e\u91cf\u8db3\u591f\u51d1\u9f50\u4e00\u4e2a\u5b8c\u6574\u7684\u5305\u5934<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u8ba1\u7b97\u51d1\u6ee1\u8fd9\u4e2a\u5305\u5934\u8fd8\u5dee\u591a\u5c11\u4e2a\u5b57\u8282 (head_remain)<\/span><br \/>\n                    <span class=\"token keyword\">int<\/span> head_remain <span class=\"token operator\">&#061;<\/span> HEAD_TOTAL_LEN <span class=\"token operator\">&#8211;<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u4ece\u5e95\u5c42\u7684 _data \u4e2d\u5207\u51fa\u8fd9\u90e8\u5206\u5b57\u8282&#xff0c;\u586b\u6ee1\u5305\u5934\u8282\u70b9<\/span><br \/>\n                    <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_recv_head_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">,<\/span> _data <span class=\"token operator\">&#043;<\/span> copy_len<span class=\"token punctuation\">,<\/span> head_remain<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u8054\u52a8\u66f4\u65b0\u5e95\u5c42\u7f13\u51b2\u533a\u7684\u8bfb\u53d6\u6e38\u6807\u4ee5\u53ca\u5269\u4f59\u5f85\u5904\u7406\u7684\u5b57\u8282\u6570<\/span><br \/>\n                    copy_len <span class=\"token operator\">&#043;&#061;<\/span> head_remain<span class=\"token punctuation\">;<\/span><br \/>\n                    bytes_transferred <span class=\"token operator\">-&#061;<\/span> head_remain<span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ &#8212; \u5f00\u59cb\u89e3\u6790\u5df2\u7ecf\u51d1\u9f50\u7684\u5b8c\u6574\u5305\u5934 &#8212;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ 1. \u63d0\u53d6\u6d88\u606f ID (MSG ID)<\/span><br \/>\n                    <span class=\"token keyword\">short<\/span> msg_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 \/>\n                    <span class=\"token comment\">\/\/ \u7f51\u7edc\u5b57\u8282\u5e8f&#xff08;\u5927\u7aef\u5e8f&#xff09;\u8f6c\u5316\u4e3a\u672c\u5730\u4e3b\u673a\u5b57\u8282\u5e8f<\/span><br \/>\n                    msg_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\">network_to_host_short<\/span><span class=\"token punctuation\">(<\/span>msg_id<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;msg_id is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_id <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u5b89\u5168\u6821\u9a8c&#xff1a;\u5982\u679c\u89e3\u51fa\u7684 ID \u975e\u6cd5&#xff08;\u5982\u5927\u4e8e\u5b9a\u4e49\u7684 MAX_LENGTH \u9650\u5236&#xff09;&#xff0c;\u9632\u6b62\u6076\u610f\u5305\u653b\u51fb&#xff0c;\u76f4\u63a5\u65ad\u5f00\u4f1a\u8bdd<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>msg_id <span class=\"token operator\">&gt;<\/span> MAX_LENGTH<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;invalid msg_id is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_id <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n                        _server<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">ClearSession<\/span><span class=\"token punctuation\">(<\/span>_uuid<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><\/p>\n<p>                    <span class=\"token comment\">\/\/ 2. \u63d0\u53d6\u5305\u4f53\u6570\u636e\u957f\u5ea6 (DATA LEN)<\/span><br \/>\n                    <span class=\"token keyword\">short<\/span> msg_len <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_len<span class=\"token punctuation\">,<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token operator\">&#043;<\/span>HEAD_ID_LEN<span class=\"token punctuation\">,<\/span> HEAD_DATA_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u7f51\u7edc\u5b57\u8282\u5e8f\u8f6c\u5316\u4e3a\u672c\u5730\u4e3b\u673a\u5b57\u8282\u5e8f<\/span><br \/>\n                    msg_len <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\">network_to_host_short<\/span><span class=\"token punctuation\">(<\/span>msg_len<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;msg_len is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_len <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u5b89\u5168\u6821\u9a8c&#xff1a;\u5982\u679c\u89e3\u51fa\u7684\u5305\u4f53\u957f\u5ea6\u8d85\u8fc7\u7f13\u51b2\u533a\u4e0a\u9650&#xff0c;\u76f4\u63a5\u65ad\u5f00\u4f1a\u8bdd&#xff0c;\u9632\u6b62\u5185\u5b58\u6491\u7206<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>msg_len <span class=\"token operator\">&gt;<\/span> MAX_LENGTH<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;invalid data length is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_len <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n                        _server<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">ClearSession<\/span><span class=\"token punctuation\">(<\/span>_uuid<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><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u6839\u636e\u5305\u5934\u91cc\u83b7\u53d6\u5230\u7684\u5b9e\u9645\u957f\u5ea6&#xff0c;\u52a8\u6001\u521b\u5efa\u5bf9\u5e94\u5927\u5c0f\u7684\u5305\u4f53\u63a5\u6536\u8282\u70b9<\/span><br \/>\n                    _recv_msg_node <span class=\"token operator\">&#061;<\/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>RecvNode<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>msg_len<span class=\"token punctuation\">,<\/span> msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u8fb9\u754c\u60c5\u51b5 C&#xff1a;\u6263\u9664\u5305\u5934\u540e&#xff0c;\u672c\u6b21\u6536\u5230\u7684\u5269\u4f59\u6570\u636e (bytes_transferred) \u4e0d\u591f\u8be5\u5305\u4f53\u89c4\u5b9a\u7684\u603b\u957f\u5ea6 (msg_len)<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>bytes_transferred <span class=\"token operator\">&lt;<\/span> msg_len<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                        <span class=\"token comment\">\/\/ \u80fd\u6536\u591a\u5c11\u5148\u6536\u591a\u5c11&#xff0c;\u628a\u8fd9\u90e8\u5206\u534a\u5305\u6570\u636e\u62f7\u8d1d\u5230\u5305\u4f53\u8282\u70b9\u4e2d<\/span><br \/>\n                        <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">,<\/span> _data <span class=\"token operator\">&#043;<\/span> copy_len<span class=\"token punctuation\">,<\/span> bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len <span class=\"token operator\">&#043;&#061;<\/span> bytes_transferred<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6807\u8bb0\u5df2\u6536\u90e8\u5206\u957f\u5ea6<\/span><\/p>\n<p>                        <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> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ \u7ee7\u7eed\u6295\u9012\u5f02\u6b65\u8bfb&#xff0c;\u671f\u5f85\u540e\u7eed\u7684\u534a\u5305\u6570\u636e<\/span><br \/>\n                        _socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><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><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> MAX_LENGTH<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>HandleRead<span class=\"token punctuation\">,<\/span> <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> std<span class=\"token double-colon punctuation\">::<\/span>placeholders<span class=\"token double-colon punctuation\">::<\/span>_2<span class=\"token punctuation\">,<\/span> shared_self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                        <span class=\"token comment\">\/\/ \u6838\u5fc3\u72b6\u6001\u5207\u6362&#xff1a;\u6807\u8bb0\u5305\u5934\u5df2\u6210\u529f\u89e3\u6790\u5b8c\u6bd5&#xff0c;\u4e0b\u6b21\u6570\u636e\u6765\u65f6\u76f4\u63a5\u8fdb\u5165\u3010\u72b6\u6001\u4e8c\u3011\u5904\u7406\u5305\u4f53<\/span><br \/>\n                        _b_head_parse <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9000\u51fa\u5f53\u524d\u56de\u8c03<\/span><br \/>\n                    <span class=\"token punctuation\">}<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u6b63\u5e38\u60c5\u51b5 D&#xff1a;\u5269\u4f59\u7684\u6570\u636e\u521a\u597d\u591f\u3001\u6216\u8005\u6bd4\u9700\u8981\u7684\u5305\u4f53\u8fd8\u8981\u591a&#xff08;\u53d1\u751f\u7c98\u5305&#xff09;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u76f4\u63a5\u62f7\u8d1d\u5b8c\u6574\u7684\u5305\u4f53\u957f\u5ea6\u5230\u8282\u70b9\u4e2d<\/span><br \/>\n                    <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">,<\/span> _data <span class=\"token operator\">&#043;<\/span> copy_len<span class=\"token punctuation\">,<\/span> msg_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len <span class=\"token operator\">&#043;&#061;<\/span> msg_len<span class=\"token punctuation\">;<\/span><br \/>\n                    copy_len <span class=\"token operator\">&#043;&#061;<\/span> msg_len<span class=\"token punctuation\">;<\/span><br \/>\n                    bytes_transferred <span class=\"token operator\">-&#061;<\/span> msg_len<span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u515c\u5e95\u5b89\u5168&#xff1a;\u5728\u7ed3\u5c3e\u8865\u4e0a\u5b57\u7b26\u4e32\u7ed3\u675f\u7b26&#xff0c;\u9632\u6b62\u540e\u9762\u4f5c\u4e3a\u5b57\u7b26\u4e32\u8bfb\u53d6\u65f6\u8d8a\u754c<\/span><br \/>\n                    _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">[<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/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><\/p>\n<p>                    <span class=\"token comment\">\/\/ &#8212; \u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff1a;\u5f53\u524d\u5df2\u6210\u529f\u6536\u5168\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684\u4e1a\u52a1\u5305 &#8212;<\/span><br \/>\n                    Json<span class=\"token double-colon punctuation\">::<\/span>Reader reader<span class=\"token punctuation\">;<\/span><br \/>\n                    Json<span class=\"token double-colon punctuation\">::<\/span>Value root<span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u89e3\u6790 Json \u4e1a\u52a1\u6570\u636e<\/span><br \/>\n                    reader<span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_total_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> root<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;recevie msg id  is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; msg data is &#034;<\/span><br \/>\n                        <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u7ec4\u88c5\u56de\u5305\u6570\u636e\u6d4b\u8bd5\u53d1\u9001<\/span><br \/>\n                    root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;server has received msg, msg data is &#034;<\/span> <span class=\"token operator\">&#043;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    std<span class=\"token double-colon punctuation\">::<\/span>string return_str <span class=\"token operator\">&#061;<\/span> root<span class=\"token punctuation\">.<\/span><span class=\"token function\">toStyledString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>return_str<span class=\"token punctuation\">,<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u91cd\u7f6e\u72b6\u6001\u673a&#xff1a;\u51c6\u5907\u63a5\u6536\u5e76\u89e3\u6790\u4e0b\u4e00\u4e2a\u5168\u65b0\u7684\u5305\u5934<\/span><br \/>\n                    _b_head_parse <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    _recv_head_node<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token comment\">\/\/ \u5982\u679c\u521a\u597d\u628a\u672c\u6b21\u7f51\u7edc\u63a5\u6536\u7684\u6570\u636e\u5168\u90e8\u5b8c\u7f8e\u6d88\u8017\u5b8c&#xff0c;\u5219\u91cd\u65b0\u6295\u9012\u5f02\u6b65\u76d1\u542c<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>bytes_transferred <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <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> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        _socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><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><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> MAX_LENGTH<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>HandleRead<span class=\"token punctuation\">,<\/span> <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> std<span class=\"token double-colon punctuation\">::<\/span>placeholders<span class=\"token double-colon punctuation\">::<\/span>_2<span class=\"token punctuation\">,<\/span> shared_self<span class=\"token punctuation\">)<\/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 comment\">\/\/ \u5982\u679c\u8fd8\u6709\u5bcc\u4f59\u6570\u636e&#xff08;\u5373\u53d1\u751f\u7c98\u5305&#xff0c;\u591a\u51fa\u7684\u5b57\u8282\u5c5e\u4e8e\u4e0b\u4e00\u4e2a\u5305&#xff09;&#xff0c;\u901a\u8fc7 while \u5faa\u73af\u7ee7\u7eed\u5411\u4e0b\u5207\u7247\u5904\u7406<\/span><br \/>\n                    <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u3010\u72b6\u6001\u4e8c\u3011&#xff1a;\u5305\u5934\u5728\u6b64\u524d\u5df2\u7ecf\u89e3\u6790\u8fc7\u4e86&#xff0c;\u73b0\u5728\u6765\u4e13\u95e8\u5904\u7406\u4e0a\u6b21\u7531\u4e8e\u7f51\u7edc\u5207\u7247\u672a\u63a5\u6536\u5b8c\u7684\u5305\u4f53\u6b8b\u5305<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u8ba1\u7b97\u8be5\u5305\u4f53\u8fd8\u5dee\u591a\u5c11\u5b57\u8282\u624d\u80fd\u7ec4\u88c5\u5b8c\u6574 (remain_msg)<\/span><br \/>\n                <span class=\"token keyword\">int<\/span> remain_msg <span class=\"token operator\">&#061;<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_total_len <span class=\"token operator\">&#8211;<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u8fb9\u754c\u60c5\u51b5 E&#xff1a;\u5f53\u524d\u8fd9\u6b21\u6536\u5230\u7684\u6570\u636e&#xff0c;\u4f9d\u7136\u4e0d\u591f\u586b\u6ee1\u5305\u4f53\u5269\u4e0b\u7684\u7a9f\u7abf<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>bytes_transferred <span class=\"token operator\">&lt;<\/span> remain_msg<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u628a\u8fd9\u6b21\u6536\u5230\u7684\u5168\u90e8\u585e\u8fdb\u53bb&#xff0c;\u7ee7\u7eed\u7b49\u5f85\u4e0b\u4e00\u6b21\u5f02\u6b65\u8bfb<\/span><br \/>\n                    <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">,<\/span> _data <span class=\"token operator\">&#043;<\/span> copy_len<span class=\"token punctuation\">,<\/span> bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len <span class=\"token operator\">&#043;&#061;<\/span> bytes_transferred<span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <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> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    _socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><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><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> MAX_LENGTH<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>HandleRead<span class=\"token punctuation\">,<\/span> <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> std<span class=\"token double-colon punctuation\">::<\/span>placeholders<span class=\"token double-colon punctuation\">::<\/span>_2<span class=\"token punctuation\">,<\/span> shared_self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4f9d\u7136\u4fdd\u6301 _b_head_parse &#061; true&#xff0c;\u9000\u51fa\u7b49\u5f85\u4e0b\u6279\u6570\u636e<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u60c5\u51b5 F&#xff1a;\u672c\u6b21\u6570\u636e\u8db3\u4ee5\u586b\u6ee1\u5305\u4f53\u6b8b\u5305<\/span><br \/>\n                <span class=\"token function\">memcpy<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">,<\/span> _data <span class=\"token operator\">&#043;<\/span> copy_len<span class=\"token punctuation\">,<\/span> remain_msg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_cur_len <span class=\"token operator\">&#043;&#061;<\/span> remain_msg<span class=\"token punctuation\">;<\/span><br \/>\n                bytes_transferred <span class=\"token operator\">-&#061;<\/span> remain_msg<span class=\"token punctuation\">;<\/span><br \/>\n                copy_len <span class=\"token operator\">&#043;&#061;<\/span> remain_msg<span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u8865\u9f50\u7ed3\u675f\u7b26<\/span><br \/>\n                _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">[<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/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><\/p>\n<p>                <span class=\"token comment\">\/\/ &#8212; \u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff1a;\u6b8b\u5305\u62fc\u63a5\u5b8c\u6210&#xff0c;\u6784\u6210\u4e00\u4e2a\u5b8c\u6574\u4e1a\u52a1\u5305 &#8212;<\/span><br \/>\n                Json<span class=\"token double-colon punctuation\">::<\/span>Reader reader<span class=\"token punctuation\">;<\/span><br \/>\n                Json<span class=\"token double-colon punctuation\">::<\/span>Value root<span class=\"token punctuation\">;<\/span><br \/>\n                reader<span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_total_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> root<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;recevie msg id  is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; msg data is &#034;<\/span><br \/>\n                    <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>                root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;server has received msg, msg data is &#034;<\/span> <span class=\"token operator\">&#043;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                std<span class=\"token double-colon punctuation\">::<\/span>string return_str <span class=\"token operator\">&#061;<\/span> root<span class=\"token punctuation\">.<\/span><span class=\"token function\">toStyledString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>return_str<span class=\"token punctuation\">,<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u72b6\u6001\u91cd\u7f6e&#xff1a;\u8be5\u5305\u5b8c\u7f8e\u5904\u7406\u5b8c\u6bd5&#xff0c;\u91cd\u65b0\u5c06\u72b6\u6001\u5207\u6362\u4e3a\u671f\u5f85\u4e0b\u4e00\u4e2a\u5305\u5934<\/span><br \/>\n                _b_head_parse <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                _recv_head_node<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u6570\u636e\u6b63\u597d\u5168\u90e8\u6d88\u8017\u5e72\u51c0&#xff0c;\u7ee7\u7eed\u6302\u8d77\u76d1\u542c<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>bytes_transferred <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <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> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    _socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><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><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> MAX_LENGTH<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>HandleRead<span class=\"token punctuation\">,<\/span> <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> std<span class=\"token double-colon punctuation\">::<\/span>placeholders<span class=\"token double-colon punctuation\">::<\/span>_2<span class=\"token punctuation\">,<\/span> shared_self<span class=\"token punctuation\">)<\/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 comment\">\/\/ \u82e5\u4ecd\u6709\u7c98\u5305\u6570\u636e&#xff0c;\u5faa\u73af\u7ee7\u7eed<\/span><br \/>\n                <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5e95\u5c42\u51fa\u9519&#xff08;\u5982\u5ba2\u6237\u7aef\u4e3b\u52a8\u65ad\u5f00\u8fde\u63a5\u3001\u7f51\u7edc\u8d85\u65f6\u7b49&#xff09;<\/span><br \/>\n            std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;handle read failed, error is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> error<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                   <span class=\"token comment\">\/\/ \u5173\u95ed\u5957\u63a5\u5b57<\/span><br \/>\n            _server<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">ClearSession<\/span><span class=\"token punctuation\">(<\/span>_uuid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4ece\u670d\u52a1\u5668\u4f1a\u8bdd\u7ba1\u7406\u5668\u4e2d\u79fb\u9664\u672c\u4f1a\u8bdd<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span>exception<span class=\"token operator\">&amp;<\/span> e<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;Exception code is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5bf9\u4e8e\u63a5\u53d7\u6d88\u606f\u65f6\u7684\u51fd\u6570\u53ef\u4ee5\u8fdb\u884c\u7b80\u5316&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u542f\u52a8\u76d1\u542c\u5165\u53e3&#xff1a;\u76f4\u63a5\u8bfb\u53d6\u56fa\u5b9a\u957f\u5ea6\u7684\u5305\u5934<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">CSession<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    _recv_head_node<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6e05\u7a7a\u5305\u5934\u7f13\u51b2\u533a<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f18\u5316\u70b9 1&#xff1a;\u4f7f\u7528 async_read \u4ee3\u66ff async_read_some&#xff0c;\u53ea\u6709\u6512\u6ee1 HEAD_TOTAL_LEN \u5b57\u8282\u624d\u4f1a\u89e6\u53d1\u56de\u8c03<\/span><br \/>\n    boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">async_read<\/span><span class=\"token punctuation\">(<\/span>_socket<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\">buffer<\/span><span class=\"token punctuation\">(<\/span>_recv_head_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> HEAD_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>HandleReadHead<span class=\"token punctuation\">,<\/span> <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><span class=\"token comment\">\/\/ \u72b6\u6001\u4e00&#xff1a;\u4e13\u95e8\u5904\u7406\u5305\u5934<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">CSession<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">HandleReadHead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>system<span class=\"token double-colon punctuation\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> error<span class=\"token punctuation\">,<\/span> std<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span> shared_self<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">HandleError<\/span><span class=\"token punctuation\">(<\/span>error<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><\/p>\n<p>    <span class=\"token comment\">\/\/ 1. \u63d0\u53d6\u5e76\u8f6c\u6362\u6d88\u606f ID<\/span><br \/>\n    <span class=\"token keyword\">short<\/span> msg_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 \/>\n    msg_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\">network_to_host_short<\/span><span class=\"token punctuation\">(<\/span>msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u63d0\u53d6\u5e76\u8f6c\u6362\u6570\u636e\u957f\u5ea6<\/span><br \/>\n    <span class=\"token keyword\">short<\/span> msg_len <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_len<span class=\"token punctuation\">,<\/span> _recv_head_node<span class=\"token operator\">-&gt;<\/span>_data <span class=\"token operator\">&#043;<\/span> HEAD_ID_LEN<span class=\"token punctuation\">,<\/span> HEAD_DATA_LEN<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    msg_len <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\">network_to_host_short<\/span><span class=\"token punctuation\">(<\/span>msg_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u5b89\u5168\u6821\u9a8c<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>msg_id <span class=\"token operator\">&gt;<\/span> MAX_LENGTH <span class=\"token operator\">||<\/span> msg_len <span class=\"token operator\">&gt;<\/span> MAX_LENGTH<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;Invalid msg_id (&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_id <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;) or msg_len (&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_len <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;)&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n        _server<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">ClearSession<\/span><span class=\"token punctuation\">(<\/span>_uuid<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><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u6784\u5efa\u5305\u4f53\u8282\u70b9<\/span><br \/>\n    _recv_msg_node <span class=\"token operator\">&#061;<\/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>RecvNode<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>msg_len<span class=\"token punctuation\">,<\/span> msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f18\u5316\u70b9 2&#xff1a;\u518d\u6b21\u4f7f\u7528\u5b9a\u91cf\u8bfb\u53d6&#xff0c;\u4e0d\u6512\u6ee1\u5b9e\u9645\u9700\u8981\u7684 msg_len \u5b57\u8282\u7edd\u4e0d\u8fdb\u5165\u4e0b\u4e00\u6b65<\/span><br \/>\n    boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">async_read<\/span><span class=\"token punctuation\">(<\/span>_socket<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\">buffer<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> msg_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>HandleReadMsg<span class=\"token punctuation\">,<\/span> <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> shared_self<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><span class=\"token comment\">\/\/ \u72b6\u6001\u4e8c&#xff1a;\u4e13\u95e8\u5904\u7406\u5305\u4f53\u4e0e\u4e1a\u52a1\u903b\u8f91<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">CSession<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">HandleReadMsg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>system<span class=\"token double-colon punctuation\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> error<span class=\"token punctuation\">,<\/span> std<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span> shared_self<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">HandleError<\/span><span class=\"token punctuation\">(<\/span>error<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><\/p>\n<p>    <span class=\"token comment\">\/\/ \u515c\u5e95\u5b89\u5168<\/span><br \/>\n    _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">[<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/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><\/p>\n<p>    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6267\u884c\u4e1a\u52a1\u903b\u8f91 (JSON \u89e3\u6790)<\/span><br \/>\n        Json<span class=\"token double-colon punctuation\">::<\/span>Reader reader<span class=\"token punctuation\">;<\/span><br \/>\n        Json<span class=\"token double-colon punctuation\">::<\/span>Value root<span class=\"token punctuation\">;<\/span><br \/>\n        reader<span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>_recv_msg_node<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> _recv_msg_node<span class=\"token operator\">-&gt;<\/span>_total_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> root<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Receive msg id: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                  <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; data: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u56de\u5305<\/span><br \/>\n        root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;server has received msg, msg data is &#034;<\/span> <span class=\"token operator\">&#043;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>root<span class=\"token punctuation\">.<\/span><span class=\"token function\">toStyledString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/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><br \/>\n    <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span>exception<span class=\"token operator\">&amp;<\/span> e<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;Json parse exception: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f18\u5316\u70b9 3&#xff1a;\u4e00\u4e2a\u5faa\u73af\u5b8c\u7f8e\u7ed3\u675f&#xff0c;\u76f4\u63a5\u8c03\u7528 Start() \u6295\u9012\u4e0b\u4e00\u4e2a\u5305\u5934\u7684\u63a5\u6536&#xff0c;\u5f62\u6210\u95ed\u73af<\/span><br \/>\n    <span class=\"token function\">Start<\/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><span class=\"token comment\">\/\/ \u62bd\u53d6\u516c\u5171\u9519\u8bef\u5904\u7406<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">CSession<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">HandleError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token double-colon punctuation\">::<\/span>system<span class=\"token double-colon punctuation\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> error<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 read failed, error: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> error<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    _server<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">ClearSession<\/span><span class=\"token punctuation\">(<\/span>_uuid<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u903b\u8f91\u5c42\u8bbe\u8ba1<\/h2>\n<h3>\u4f18\u96c5\u9000\u51fa<\/h3>\n<p>\u670d\u52a1\u5668\u4f18\u96c5\u9000\u51fa\u4e00\u76f4\u662f\u670d\u52a1\u5668\u8bbe\u8ba1\u5fc5\u987b\u8003\u8651\u7684\u4e00\u4e2a\u65b9\u5411&#xff0c;\u610f\u5728\u80fd\u901a\u8fc7\u6355\u83b7\u4fe1\u53f7\u4f7f\u670d\u52a1\u5668\u5b89\u5168\u9000\u51fa\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7asio\u63d0\u4f9b\u7684\u4fe1\u53f7\u673a\u5236\u7ed1\u5b9a\u56de\u8c03\u51fd\u6570\u5373\u53ef\u5b9e\u73b0\u4f18\u96c5\u9000\u51fa\u3002<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u521d\u59cb\u5316\u6838\u5fc3 I\/O \u4e0a\u4e0b\u6587\u5bf9\u8c61<\/span><br \/>\n        <span class=\"token comment\">\/\/ io_context \u662f\u6574\u4e2a Boost.Asio \u6846\u67b6\u7684\u201c\u5fc3\u810f\u201d&#xff0c;\u8d1f\u8d23\u9a71\u52a8\u6240\u6709\u7684\u5f02\u6b65\u4e8b\u4ef6&#xff08;\u5982\u7f51\u7edc\u8bfb\u5199\u3001\u5b9a\u65f6\u5668\u3001\u4fe1\u53f7\u7b49\u5f85\u7b49&#xff09;<\/span><br \/>\n        boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>io_context  io_context<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 2. \u521b\u5efa\u4e00\u4e2a\u5f02\u6b65\u4fe1\u53f7\u96c6\u5bf9\u8c61<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5c06\u5176\u7ed1\u5b9a\u5230 io_context \u4e0a&#xff0c;\u5e76\u6ce8\u518c\u4e24\u4e2a\u6807\u51c6\u7684\u64cd\u4f5c\u7cfb\u7edf\u6e05\u7406\u4fe1\u53f7&#xff1a;<\/span><br \/>\n        <span class=\"token comment\">\/\/ SIGINT (\u901a\u5e38\u662f\u7528\u6237\u5728\u7ec8\u7aef\u6309\u4e0b Ctrl&#043;C \u89e6\u53d1) \u548c SIGTERM (\u7cfb\u7edf\u53d1\u51fa\u7684\u7ec8\u6b62\u8fdb\u7a0b\u4fe1\u53f7&#xff0c;\u5982 kill \u547d\u4ee4)<\/span><br \/>\n        boost<span class=\"token double-colon punctuation\">::<\/span>asio<span class=\"token double-colon punctuation\">::<\/span>signal_set <span class=\"token function\">signals<\/span><span class=\"token punctuation\">(<\/span>io_context<span class=\"token punctuation\">,<\/span> SIGINT<span class=\"token punctuation\">,<\/span> SIGTERM<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 3. \u6295\u9012\u4e00\u4e2a\u5f02\u6b65\u4fe1\u53f7\u7b49\u5f85\u4efb\u52a1<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u544a\u8bc9 io_context&#xff1a;\u201c\u4e00\u65e6\u64cd\u4f5c\u7cfb\u7edf\u6355\u83b7\u5230\u4e0a\u8ff0\u6ce8\u518c\u7684\u4fe1\u53f7&#xff0c;\u7acb\u523b\u56de\u8c03\u6267\u884c\u8fd9\u4e2a Lambda \u533f\u540d\u51fd\u6570\u201d<\/span><br \/>\n        signals<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">&amp;<\/span>io_context<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">auto<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">auto<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5f53\u89e6\u53d1 Ctrl&#043;C \u6216\u88ab kill \u65f6&#xff0c;\u6267\u884c\u6b64\u5904\u7684\u5b89\u5168\u9000\u51fa\u903b\u8f91&#xff1a;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5f3a\u884c\u505c\u6b62 io_context \u7684\u4e8b\u4ef6\u5faa\u73af\u3002\u8fd9\u4f1a\u5bfc\u81f4\u539f\u672c\u963b\u585e\u5728 io_context.run() \u7684\u4e3b\u7ebf\u7a0b\u7acb\u523b\u5411\u4e0b\u89e3\u9501<\/span><br \/>\n            io_context<span class=\"token punctuation\">.<\/span><span class=\"token function\">stop<\/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><\/p>\n<p>        <span class=\"token comment\">\/\/ 4. \u5b9e\u4f8b\u5316\u670d\u52a1\u5668\u7ba1\u7406\u5bf9\u8c61<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f20\u5165 I\/O \u4e0a\u4e0b\u6587\u4ee5\u53ca\u76d1\u542c\u7684\u7aef\u53e3\u53f7 10086\u3002\u6b64\u65f6 CServer \u5185\u90e8\u901a\u5e38\u4f1a\u6267\u884c socket \u7684 bind \u548c listen&#xff0c;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5e76\u6295\u9012\u51fa\u7b2c\u4e00\u4e2a\u5f02\u6b65\u63a5\u53d7\u8fde\u63a5&#xff08;async_accept&#xff09;\u7684\u4efb\u52a1\u3002<\/span><br \/>\n        CServer <span class=\"token function\">s<\/span><span class=\"token punctuation\">(<\/span>io_context<span class=\"token punctuation\">,<\/span> <span class=\"token number\">10086<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 5. \u542f\u52a8\u4e8b\u4ef6\u5faa\u73af&#xff08;\u70b9\u706b\u8fd0\u884c&#xff09;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8fd9\u662f\u4e00\u4e2a\u963b\u585e\u8c03\u7528&#xff0c;\u4e3b\u7ebf\u7a0b\u4f1a\u5728\u8fd9\u91cc\u201c\u6b7b\u5faa\u73af\u201d\u7b49\u5f85\u5e76\u5904\u7406\u5e95\u5c42\u7f51\u7edc\u548c\u4fe1\u53f7\u4e8b\u4ef6\u3002<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53ea\u6709\u5f53\u6240\u6709\u7684\u5f02\u6b65\u4efb\u52a1\u5168\u90e8\u5b8c\u6210&#xff0c;\u6216\u8005\u5728\u522b\u5904\u663e\u5f0f\u8c03\u7528\u4e86 io_context.stop()&#xff0c;\u8be5\u51fd\u6570\u624d\u4f1a\u8fd4\u56de\u3002<\/span><br \/>\n        io_context<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span>exception<span class=\"token operator\">&amp;<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6355\u83b7\u5e76\u6253\u5370\u6574\u4e2a\u521d\u59cb\u5316\u6216\u8fd0\u884c\u671f\u95f4\u629b\u51fa\u7684\u4efb\u4f55\u6807\u51c6\u5f02\u5e38&#xff08;\u5982\u7aef\u53e3\u88ab\u5360\u7528\u7b49\u9519\u8bef&#xff09;<\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>cerr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Exception: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u5355\u4f8b\u6a21\u677f\u7c7b<\/h3>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u5b9e\u73b0\u4e00\u4e2a\u5355\u4f8b\u6a21\u677f\u7c7b&#xff0c;\u56e0\u4e3a\u670d\u52a1\u5668\u7684\u903b\u8f91\u5904\u7406\u9700\u8981\u5355\u4f8b\u6a21\u5f0f&#xff0c;\u540e\u671f\u53ef\u80fd\u8fd8\u4f1a\u6709\u4e00\u4e9b\u6a21\u5757\u7684\u8bbe\u8ba1\u4e5f\u9700\u8981\u5355\u4f8b\u6a21\u5f0f&#xff0c;\u6240\u4ee5\u5148\u5b9e\u73b0\u4e00\u4e2a\u5355\u4f8b\u6a21\u677f\u7c7b&#xff0c;\u7136\u540e\u5176\u4ed6\u60f3\u5b9e\u73b0\u5355\u4f8b\u7c7b\u53ea\u9700\u8981\u7ee7\u627f\u8fd9\u4e2a\u6a21\u677f\u7c7b\u5373\u53ef\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;memory&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;mutex&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 keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6cdb\u578b\u5355\u4f8b\u6a21\u5f0f\u57fa\u7c7b\u6a21\u677f<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f7f\u7528\u65b9\u6cd5&#xff1a;\u60f3\u6210\u4e3a\u5355\u4f8b\u7684\u7c7b\u7ee7\u627f\u81ea\u8be5\u7c7b&#xff0c;\u5e76\u5c06\u5176\u7c7b\u540d\u4f5c\u4e3a\u6a21\u677f\u53c2\u6570 T \u4f20\u5165&#xff08;\u901a\u5e38\u7ed3\u5408 Meyers \u5355\u4f8b\u6216\u53cb\u5143\u4f7f\u7528&#xff09;<\/span><br \/>\n<span class=\"token keyword\">template<\/span> <span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">protected<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u53d7\u4fdd\u62a4\u7684\u6784\u9020\u51fd\u6570&#xff1a;\u7981\u6b62\u5916\u90e8\u76f4\u63a5\u901a\u8fc7 new \u6216\u663e\u5f0f\u58f0\u660e\u6765\u521b\u5efa\u8be5\u7c7b\u7684\u5b9e\u4f8b<\/span><br \/>\n    <span class=\"token function\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">default<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u7981\u7528\u62f7\u8d1d\u6784\u9020\u51fd\u6570&#xff1a;\u9632\u6b62\u5916\u90e8\u901a\u8fc7\u65e7\u5b9e\u4f8b\u514b\u9686\u51fa\u65b0\u7684\u5355\u4f8b\u5b9e\u4f8b&#xff08;\u7834\u574f\u552f\u4e00\u6027&#xff09;<\/span><br \/>\n    <span class=\"token function\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> Singleton<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&amp;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">delete<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u7981\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26&#xff1a;\u9632\u6b62\u5916\u90e8\u901a\u8fc7\u8d4b\u503c\u64cd\u4f5c\u6765\u590d\u5236\u5355\u4f8b\u5bf9\u8c61&#xff08;\u7834\u574f\u552f\u4e00\u6027&#xff09;<\/span><br \/>\n    Singleton<span class=\"token operator\">&amp;<\/span> <span class=\"token keyword\">operator<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> Singleton<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&amp;<\/span> st<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">delete<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9759\u6001\u667a\u80fd\u6307\u9488&#xff1a;\u7528\u4e8e\u7ba1\u7406\u751f\u547d\u5468\u671f\u5185\u552f\u4e00\u7684\u5355\u4f8b\u5bf9\u8c61\u5b9e\u4f8b&#xff0c;\u5168\u5c40\u53ea\u6709\u4e00\u4efd<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> std<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> _instance<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u5355\u4f8b\u5168\u5c40\u552f\u4e00\u5b9e\u4f8b\u7684\u9759\u6001\u6838\u5fc3\u63a5\u53e3<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> std<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> <span class=\"token function\">GetInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ s_flag \u662f\u4e00\u4e2a\u9759\u6001\u7684\u5355\u6b21\u89e6\u53d1\u6807\u8bb0&#xff0c;\u5168\u5c40\u552f\u4e00&#xff0c;\u7528\u4e8e\u914d\u5408 call_once<\/span><br \/>\n        <span class=\"token keyword\">static<\/span> std<span class=\"token double-colon punctuation\">::<\/span>once_flag s_flag<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 4. \u6838\u5fc3\u5b89\u5168\u8bbe\u8ba1&#xff1a;std::call_once \u80fd\u7edd\u5bf9\u4fdd\u8bc1\u4f20\u5165\u7684 Lambda \u8868\u8fbe\u5f0f\u4ee3\u7801\u5757<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5728\u591a\u7ebf\u7a0b\u9ad8\u5e76\u53d1\u73af\u5883\u4e0b&#xff0c;\u6709\u4e14\u4ec5\u6709\u67d0\u4e00\u4e2a\u7ebf\u7a0b\u4f1a\u6210\u529f\u6267\u884c\u4e00\u6b21\u3002<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5b83\u5b8c\u7f8e\u89e3\u51b3\u4e86\u61d2\u6c49\u5f0f\u5355\u4f8b\u6a21\u5f0f\u5728\u591a\u7ebf\u7a0b\u521d\u59cb\u5316\u65f6\u7684\u201c\u53cc\u91cd\u68c0\u67e5\u9501\u5b9a (DCLP)\u201d\u7f3a\u9677\u4e0e\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u3002<\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">call_once<\/span><span class=\"token punctuation\">(<\/span>s_flag<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token operator\">&amp;<\/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 comment\">\/\/ \u4f7f\u7528 new T \u521b\u5efa\u5b9e\u9645\u7684\u4e1a\u52a1\u5bf9\u8c61&#xff0c;\u5e76\u4ea4\u7531\u667a\u80fd\u6307\u9488 shared_ptr \u8fdb\u884c\u6258\u7ba1<\/span><br \/>\n            _instance <span class=\"token operator\">&#061;<\/span> <span class=\"token generic-function\"><span class=\"token function\">shared_ptr<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> T<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><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8fd4\u56de\u5df2\u7ecf\u521b\u5efa\u597d\u3001\u4e14\u7ebf\u7a0b\u5b89\u5168\u7684\u552f\u4e00\u5b9e\u4f8b\u667a\u80fd\u6307\u9488<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _instance<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f85\u52a9\u6d4b\u8bd5\u51fd\u6570&#xff1a;\u6253\u5370\u5f53\u524d\u5168\u5c40\u552f\u4e00\u5355\u4f8b\u5bf9\u8c61\u5728\u5185\u5b58\u4e2d\u7684\u5b9e\u9645\u7269\u7406\u5730\u5740<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">PrintAddress<\/span><span class=\"token punctuation\">(<\/span><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> _instance<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6790\u6784\u51fd\u6570&#xff1a;\u5355\u4f8b\u5bf9\u8c61\u751f\u547d\u5468\u671f\u7ed3\u675f&#xff08;\u901a\u5e38\u5728\u7a0b\u5e8f\u9000\u51fa\u3001\u9759\u6001\u53d8\u91cf\u9500\u6bc1\u65f6&#xff09;\u4f1a\u81ea\u52a8\u89e6\u53d1<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">Singleton<\/span><span class=\"token punctuation\">(<\/span><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;this is singleton destruct&#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 punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u9759\u6001\u6210\u5458\u53d8\u91cf\u7684\u7c7b\u5916\u521d\u59cb\u5316<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5728 C&#043;&#043; \u4e2d&#xff0c;\u7c7b\u7684\u9759\u6001\u6570\u636e\u6210\u5458\u5fc5\u987b\u5728\u7c7b\u5916\u8fdb\u884c\u5b9a\u4e49\u548c\u521d\u59cb\u5316&#xff0c;\u8fd9\u91cc\u5c06\u5176\u9ed8\u8ba4\u7f6e\u4e3a nullptr<\/span><br \/>\n<span class=\"token keyword\">template<\/span> <span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\nstd<span class=\"token double-colon punctuation\">::<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> Singleton<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span>_instance <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>:::color1<\/p>\n<ul>\n<li>\u5355\u4f8b\u6a21\u5f0f\u6a21\u677f\u7c7b\u5c06\u65e0\u53c2\u6784\u9020&#xff0c;\u62f7\u8d1d\u6784\u9020&#xff0c;\u62f7\u8d1d\u8d4b\u503c\u90fd\u8bbe\u5b9a\u4e3aprotected\u5c5e\u6027&#xff0c;\u5176\u4ed6\u7684\u7c7b\u65e0\u6cd5\u8bbf\u95ee&#xff0c;\u5176\u5b9e\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u79c1\u6709\u5c5e\u6027\u3002\u6790\u6784\u51fd\u6570\u8bbe\u7f6e\u4e3a\u516c\u6709\u7684&#xff0c;\u5176\u5b9e\u8bbe\u7f6e\u4e3a\u79c1\u6709\u7684\u66f4\u5408\u7406\u4e00\u70b9\u3002<\/li>\n<li>Singleton\u6709\u4e00\u4e2astatic\u7c7b\u578b\u7684\u5c5e\u6027_instance, \u5b83\u662f\u6211\u4eec\u5b9e\u9645\u8981\u5f00\u8f9f\u7c7b\u578b\u7684\u667a\u80fd\u6307\u9488\u7c7b\u578b\u3002<\/li>\n<li>s_flag\u662f\u51fd\u6570GetInstance\u5185\u7684\u5c40\u90e8\u9759\u6001\u53d8\u91cf&#xff0c;\u8be5\u53d8\u91cf\u5728\u51fd\u6570GetInstance\u7b2c\u4e00\u6b21\u8c03\u7528\u65f6\u88ab\u521d\u59cb\u5316\u3002\u4ee5\u540e\u65e0\u8bba\u8c03\u7528\u591a\u5c11\u6b21GetInstance s_flag\u90fd\u4e0d\u4f1a\u88ab\u91cd\u590d\u521d\u59cb\u5316&#xff0c;\u800c\u4e14s_flag\u5b58\u5728\u9759\u6001\u533a&#xff0c;\u4f1a\u968f\u7740\u8fdb\u7a0b\u7ed3\u675f\u800c\u81ea\u52a8\u91ca\u653e\u3002<\/li>\n<li>call_once\u53ea\u4f1a\u8c03\u7528\u4e00\u6b21&#xff0c;\u800c\u4e14\u662f\u7ebf\u7a0b\u5b89\u5168\u7684&#xff0c; \u5176\u5185\u90e8\u7684\u539f\u7406\u5c31\u662f\u8c03\u7528\u8be5\u51fd\u6570\u65f6\u52a0\u9501&#xff0c;\u7136\u540e\u8bbe\u7f6es_flag\u5185\u90e8\u7684\u6807\u8bb0&#xff0c;\u8bbe\u7f6e\u4e3a\u5df2\u7ecf\u521d\u59cb\u5316&#xff0c;\u6267\u884clambda\u8868\u8fbe\u5f0f\u903b\u8f91\u521d\u59cb\u5316\u667a\u80fd\u6307\u9488&#xff0c;\u7136\u540e\u89e3\u9501\u3002\u7b2c\u4e8c\u6b21\u8c03\u7528GetInstance \u5185\u90e8\u8fd8\u4f1a\u8c03\u7528call_once, \u53ea\u662fcall_once\u5224\u65ads_flag\u5df2\u7ecf\u88ab\u521d\u59cb\u5316\u4e86\u5c31\u4e0d\u6267\u884c\u521d\u59cb\u5316\u667a\u80fd\u6307\u9488\u7684\u64cd\u4f5c\u4e86\u3002<\/li>\n<\/ul>\n<p>:::<\/p>\n<h3>LogicSystem\u5355\u4f8b\u7c7b<\/h3>\n<p>\u6211\u4eec\u5b9e\u73b0\u903b\u8f91\u7cfb\u7edf\u7684\u5355\u4f8b\u7c7b&#xff0c;\u7ee7\u627f\u81eaSingleton&lt;LogicSystem&gt;&#xff0c;\u8fd9\u6837LogicSystem\u7684\u6784\u9020\u51fd\u6570\u548c\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u5c31\u90fd\u53d8\u4e3a\u79c1\u6709\u7684\u4e86&#xff0c;\u56e0\u4e3a\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u548c\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u90fd\u662f\u79c1\u6709\u7684\u3002\u53e6\u5916LogicSystem\u4e5f\u7528\u4e86\u57fa\u7c7b\u7684\u6210\u5458_instance\u548cGetInstance\u51fd\u6570\u3002\u4ece\u800c\u8fbe\u5230\u5355\u4f8b\u6548\u679c\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;functional&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;memory&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;queue&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;mutex&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;condition_variable&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;thread&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;map&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;string&gt;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u56de\u8c03\u51fd\u6570\u7684\u522b\u540d FunCallBack<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f5c\u7528&#xff1a;\u5c06\u7b26\u5408\u201cvoid(\u6807\u51c6\u4f1a\u8bdd\u667a\u80fd\u6307\u9488, \u6d88\u606fID, \u5b57\u7b26\u4e32\u6570\u636e)\u201d\u7b7e\u540d\u7684\u51fd\u6570\u5305\u88c5\u8d77\u6765&#xff0c;\u7528\u4e8e\u540e\u7eed\u7684\u4e1a\u52a1\u8def\u7531\u5206\u53d1<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> function<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">(<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">,<\/span> string msg_data<span class=\"token punctuation\">)<\/span><span class=\"token operator\">&gt;<\/span> FunCallBack<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e1a\u52a1\u903b\u8f91\u7cfb\u7edf\u7c7b&#xff1a;\u7ee7\u627f\u5355\u4f8b\u6a21\u677f\u7c7b&#xff0c;\u786e\u4fdd\u5168\u5c40\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u903b\u8f91\u5904\u7406\u4e2d\u5fc3<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LogicSystem<\/span> <span class=\"token operator\">:<\/span> <span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">LogicSystem<\/span><span class=\"token operator\">&gt;<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5173\u952e\u8bbe\u8ba1&#xff1a;\u5c06\u5355\u4f8b\u57fa\u7c7b\u58f0\u660e\u4e3a\u53cb\u5143\u7c7b<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u6837\u57fa\u7c7b Singleton \u5185\u90e8\u7684 std::call_once \u624d\u80fd\u901a\u8fc7 new LogicSystem() \u8bbf\u95ee\u5230\u672c\u7c7b\u7684\u79c1\u6709\u6784\u9020\u51fd\u6570<\/span><br \/>\n    <span class=\"token keyword\">friend<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token operator\">&lt;<\/span>LogicSystem<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6790\u6784\u51fd\u6570&#xff1a;\u8d1f\u8d23\u5b89\u5168\u5173\u95ed\u5de5\u4f5c\u7ebf\u7a0b\u3001\u91ca\u653e\u961f\u5217\u7b49\u6e05\u7406\u5de5\u4f5c<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">LogicSystem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u751f\u4ea7\u8005\u63a5\u53e3&#xff1a;\u4f9b\u5916\u90e8\u7f51\u7edc\u63a5\u6536\u7ebf\u7a0b&#xff08;\u5982 CSession&#xff09;\u8c03\u7528&#xff0c;\u5c06\u63a5\u6536\u5e76\u62fc\u88c5\u597d\u7684\u903b\u8f91\u6570\u636e\u5305\u6295\u9012\u5230\u672c\u7cfb\u7edf\u7684\u961f\u5217\u4e2d<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">PostMsgToQue<\/span><span class=\"token punctuation\">(<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>LogicNode<span class=\"token operator\">&gt;<\/span> msg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u79c1\u6709\u6784\u9020\u51fd\u6570&#xff1a;\u9632\u6b62\u5916\u90e8\u901a\u8fc7 new \u6216\u76f4\u63a5\u58f0\u660e\u6765\u521b\u5efa\u5b9e\u4f8b&#xff0c;\u5f7b\u5e95\u95ed\u73af\u5355\u4f8b\u6a21\u5f0f<\/span><br \/>\n    <span class=\"token function\">LogicSystem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u6d88\u8d39\u8005\u6838\u5fc3\u903b\u8f91&#xff1a;\u5de5\u4f5c\u7ebf\u7a0b &#096;_worker_thread&#096; \u7684\u6267\u884c\u51fd\u6570<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5185\u90e8\u91c7\u7528\u6b7b\u5faa\u73af\u914d\u5408\u6761\u4ef6\u53d8\u91cf&#xff0c;\u6e90\u6e90\u4e0d\u65ad\u5730\u4ece\u961f\u5217\u4e2d\u53d6\u51fa\u6570\u636e\u5305&#xff0c;\u5e76\u6839\u636e\u6d88\u606f ID \u5206\u53d1\u7ed9\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570\u5904\u7406<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">DealMsg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u56de\u8c03\u51fd\u6570\u6ce8\u518c\u4e2d\u5fc3&#xff1a;\u5728\u6784\u9020\u51fd\u6570\u4e2d\u8c03\u7528&#xff0c;\u8d1f\u8d23\u628a\u5404\u79cd\u6d88\u606f ID \u548c\u5177\u4f53\u7684\u5904\u7406\u51fd\u6570&#xff08;\u5982 HelloWordCallBack&#xff09;\u7ed1\u5b9a\u5e76\u5b58\u5165 &#096;_fun_callbacks&#096; \u4e2d<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">RegisterCallBacks<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u5177\u4f53\u4e1a\u52a1\u56de\u8c03\u51fd\u6570\u793a\u4f8b&#xff1a;\u5904\u7406\u7279\u5b9a\u6d88\u606f&#xff08;\u6bd4\u5982\u6d4b\u8bd5\u7528\u7684 HelloWorld \u6d88\u606f&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">HelloWordCallBack<\/span><span class=\"token punctuation\">(<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">,<\/span> string msg_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ &#8212; \u7ebf\u7a0b\u4e0e\u5e76\u53d1\u63a7\u5236\u6210\u5458\u53d8\u91cf &#8212;<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>thread _worker_thread<span class=\"token punctuation\">;<\/span>                <span class=\"token comment\">\/\/ \u4e13\u5c5e\u4e1a\u52a1\u5de5\u4f5c\u7ebf\u7a0b&#xff08;\u6d88\u8d39\u8005\u7ebf\u7a0b&#xff09;&#xff0c;\u9632\u6b62\u8017\u65f6\u7684\u4e1a\u52a1\u903b\u8f91\u963b\u585e\u7f51\u7edc I\/O \u7ebf\u7a0b<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>queue<span class=\"token operator\">&lt;<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>LogicNode<span class=\"token operator\">&gt;&gt;<\/span> _msg_que<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u6838\u5fc3\u903b\u8f91\u6d88\u606f\u961f\u5217&#xff0c;\u6682\u5b58\u7f51\u7edc\u5c42\u6295\u9012\u8fc7\u6765\u3001\u7b49\u5f85\u5904\u7406\u7684\u8282\u70b9\u6570\u636e\u5305<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>mutex _mutex<span class=\"token punctuation\">;<\/span>                         <span class=\"token comment\">\/\/ \u4e92\u65a5\u9501&#xff0c;\u7528\u4e8e\u4fdd\u62a4\u5171\u4eab\u961f\u5217 &#096;_msg_que&#096; \u7684\u7ebf\u7a0b\u5b89\u5168&#xff08;\u56e0\u4e3a\u7f51\u7edc\u63a5\u6536\u662f\u591a\u7ebf\u7a0b\u6295\u9012\u7684&#xff09;<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>condition_variable _consume<span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ \u6761\u4ef6\u53d8\u91cf&#xff0c;\u7528\u4e8e\u5de5\u4f5c\u7ebf\u7a0b\u7684\u6302\u8d77\u4e0e\u5524\u9192&#xff08;\u961f\u5217\u4e3a\u7a7a\u65f6\u6302\u8d77\u4f11\u7720&#xff0c;\u6709\u65b0\u5305\u65f6\u88ab\u5524\u9192\u5904\u7406&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> _b_stop<span class=\"token punctuation\">;<\/span>                              <span class=\"token comment\">\/\/ \u7cfb\u7edf\u9000\u51fa\u6807\u8bb0&#xff08;true \u8868\u793a\u7cfb\u7edf\u51c6\u5907\u505c\u6b62&#xff0c;\u5de5\u4f5c\u7ebf\u7a0b\u9700\u8981\u6253\u7834\u6b7b\u5faa\u73af\u5e76\u9000\u51fa&#xff09;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ &#8212; \u4e1a\u52a1\u8def\u7531\u6620\u5c04\u8868 &#8212;<\/span><br \/>\n    <span class=\"token comment\">\/\/ Key: \u6d88\u606f ID (short), Value: \u5bf9\u5e94\u7684\u5904\u7406\u56de\u8c03\u51fd\u6570 (FunCallBack)<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4f5c\u7528&#xff1a;\u901a\u8fc7\u67e5\u8868\u6cd5\u5feb\u901f\u5b9a\u4f4d\u4e0d\u540c\u534f\u8bae\u53f7\u5bf9\u5e94\u7684\u4e1a\u52a1\u5904\u7406\u903b\u8f91&#xff0c;\u907f\u514d\u4e86\u5197\u957f\u7684 if-else \u6216 switch-case \u4ee3\u7801\u7ed3\u6784<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>map<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">short<\/span><span class=\"token punctuation\">,<\/span> FunCallBack<span class=\"token operator\">&gt;<\/span> _fun_callbacks<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>:::color2<\/p>\n<li>FunCallBack\u4e3a\u8981\u6ce8\u518c\u7684\u56de\u8c03\u51fd\u6570\u7c7b\u578b&#xff0c;\u5176\u53c2\u6570\u4e3a\u4f1a\u8bdd\u7c7b\u667a\u80fd\u6307\u9488&#xff0c;\u6d88\u606fid&#xff0c;\u4ee5\u53ca\u6d88\u606f\u5185\u5bb9\u3002<\/li>\n<li>_msg_que\u4e3a\u903b\u8f91\u961f\u5217<\/li>\n<li>_mutex \u4e3a\u4fdd\u8bc1\u903b\u8f91\u961f\u5217\u5b89\u5168\u7684\u4e92\u65a5\u91cf<\/li>\n<li>_consume\u8868\u793a\u6d88\u8d39\u8005\u6761\u4ef6\u53d8\u91cf&#xff0c;\u7528\u6765\u63a7\u5236\u5f53\u903b\u8f91\u961f\u5217\u4e3a\u7a7a\u65f6\u4fdd\u8bc1\u7ebf\u7a0b\u6682\u65f6\u6302\u8d77\u7b49\u5f85&#xff0c;\u4e0d\u8981\u5e72\u6270\u5176\u4ed6\u7ebf\u7a0b\u3002<\/li>\n<li>_fun_callbacks\u8868\u793a\u56de\u8c03\u51fd\u6570\u7684map&#xff0c;\u6839\u636eid\u67e5\u627e\u5bf9\u5e94\u7684\u903b\u8f91\u5904\u7406\u51fd\u6570\u3002<\/li>\n<li>_worker_thread\u8868\u793a\u5de5\u4f5c\u7ebf\u7a0b&#xff0c;\u7528\u6765\u4ece\u903b\u8f91\u961f\u5217\u4e2d\u53d6\u6570\u636e\u5e76\u6267\u884c\u56de\u8c03\u51fd\u6570\u3002<\/li>\n<li>_b_stop\u8868\u793a\u6536\u5230\u5916\u90e8\u7684\u505c\u6b62\u4fe1\u53f7&#xff0c;\u903b\u8f91\u7c7b\u8981\u4e2d\u6b62\u5de5\u4f5c\u7ebf\u7a0b\u5e76\u4f18\u96c5\u9000\u51fa\u3002<\/li>\n<p>:::<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LogicNode<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">friend<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LogicSystem<\/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\">LogicNode<\/span><span class=\"token punctuation\">(<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span>  session<span class=\"token punctuation\">,<\/span><br \/>\n    shared_ptr<span class=\"token operator\">&lt;<\/span>RecvNode<span class=\"token operator\">&gt;<\/span> recvnode<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span><span class=\"token function\">_session<\/span><span class=\"token punctuation\">(<\/span>session<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_recvnode<\/span><span class=\"token punctuation\">(<\/span>recvnode<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/\u4f1a\u8bdd\u7c7b\u7684\u667a\u80fd\u6307\u9488&#xff0c;\u4e3b\u8981\u662f\u4e3a\u4e86\u5b9e\u73b0\u4f2a\u95ed\u5305&#xff0c;\u9632\u6b62session\u88ab\u91ca\u653e<\/span><br \/>\n    shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span> _session<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u63a5\u6536\u6d88\u606f\u7684\u8282\u70b9\u7c7b\u7684\u667a\u80fd\u6307\u9488<\/span><br \/>\n    shared_ptr<span class=\"token operator\">&lt;<\/span>RecvNode<span class=\"token operator\">&gt;<\/span> _recvnode<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u6784\u9020\u51fd\u6570\u4e2d\u5c06\u505c\u6b62\u4fe1\u606f\u521d\u59cb\u5316\u4e3afalse<\/span><br \/>\n<span class=\"token class-name\">LogicSystem<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">LogicSystem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span><span class=\"token function\">_b_stop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">RegisterCallBacks<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u6ce8\u518c\u6d88\u606f\u5904\u7406\u51fd\u6570\u5e76\u4e14\u542f\u52a8\u4e86\u4e00\u4e2a\u5de5\u4f5c\u7ebf\u7a0b&#xff0c;\u5de5\u4f5c\u7ebf\u7a0b\u6267\u884cDealMsg\u903b\u8f91<\/span><br \/>\n    _worker_thread <span class=\"token operator\">&#061;<\/span> std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">thread<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>LogicSystem<span class=\"token double-colon punctuation\">::<\/span>DealMsg<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">LogicSystem<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">RegisterCallBacks<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    _fun_callbacks<span class=\"token punctuation\">[<\/span>MSG_HELLO_WORD<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> 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>LogicSystem<span class=\"token double-colon punctuation\">::<\/span>HelloWordCallBack<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        placeholders<span class=\"token double-colon punctuation\">::<\/span>_1<span class=\"token punctuation\">,<\/span> placeholders<span class=\"token double-colon punctuation\">::<\/span>_2<span class=\"token punctuation\">,<\/span> placeholders<span class=\"token double-colon punctuation\">::<\/span>_3<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">enum<\/span> <span class=\"token class-name\">MSG_IDS<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    MSG_HELLO_WORD <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1001<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>MSG_HELLO_WORD\u8868\u793a\u6d88\u606fid&#xff0c;HelloWordCallBack\u4e3a\u5bf9\u5e94\u7684\u56de\u8c03\u5904\u7406\u51fd\u6570&#xff0c;\u5728HelloWordCallBack\u91cc\u6211\u4eec\u6839\u636e\u6d88\u606fid\u548c\u6536\u5230\u7684\u6d88\u606f&#xff0c;\u505a\u4e86\u76f8\u5e94\u7684\u5904\u7406\u5e76\u4e14\u56de\u5e94\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u5177\u4f53\u7684\u4e1a\u52a1\u56de\u8c03\u51fd\u6570\u5b9e\u73b0&#xff08;\u4ee5 HelloWorld \u6d88\u606f\u4e3a\u4f8b&#xff09;<\/span><br \/>\n<span class=\"token comment\">\/\/ session:  \u89e6\u53d1\u8be5\u4e1a\u52a1\u7684\u5ba2\u6237\u7aef\u4f1a\u8bdd\u667a\u80fd\u6307\u9488&#xff08;\u5229\u7528\u4f2a\u95ed\u5305\u673a\u5236\u4fdd\u8bc1\u5176\u751f\u547d\u5468\u671f\u5b89\u5168&#xff09;<\/span><br \/>\n<span class=\"token comment\">\/\/ msg_id:   \u672c\u6b21\u8bf7\u6c42\u7684\u6d88\u606f ID<\/span><br \/>\n<span class=\"token comment\">\/\/ msg_data: \u672c\u6b21\u8bf7\u6c42\u7684\u53d8\u957f\u5305\u4f53\u6570\u636e&#xff08;\u8fd9\u91cc\u662f\u4e00\u6bb5 JSON \u683c\u5f0f\u7684\u5b57\u7b26\u4e32&#xff09;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">LogicSystem<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">HelloWordCallBack<\/span><span class=\"token punctuation\">(<\/span>shared_ptr<span class=\"token operator\">&lt;<\/span>CSession<span class=\"token operator\">&gt;<\/span> session<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> msg_id<span class=\"token punctuation\">,<\/span> string msg_data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 1. \u58f0\u660e Jsoncpp \u5e93\u7684\u89e3\u6790\u5668\u4e0e\u6570\u636e\u6839\u8282\u70b9\u5bf9\u8c61<\/span><br \/>\n    Json<span class=\"token double-colon punctuation\">::<\/span>Reader reader<span class=\"token punctuation\">;<\/span><br \/>\n    Json<span class=\"token double-colon punctuation\">::<\/span>Value root<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u53cd\u5e8f\u5217\u5316&#xff1a;\u5c06\u4f20\u5165\u7684 JSON \u5b57\u7b26\u4e32 msg_data \u89e3\u6790\u5e76\u8f6c\u6362\u6210\u7ed3\u6784\u5316\u7684 Json::Value \u5bf9\u8c61 root<\/span><br \/>\n    reader<span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>msg_data<span class=\"token punctuation\">,<\/span> root<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u63d0\u53d6\u4e1a\u52a1\u6570\u636e&#xff1a;\u4ece\u89e3\u6790\u597d\u7684 JSON \u5bf9\u8c61\u4e2d\u83b7\u53d6\u5ba2\u6237\u7aef\u4f20\u6765\u7684 &#034;id&#034; \u548c &#034;data&#034; \u5b57\u6bb5&#xff0c;\u5e76\u6253\u5370\u5230\u63a7\u5236\u53f0<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;recevie msg id  is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; msg data is &#034;<\/span><br \/>\n        <span class=\"token operator\">&lt;&lt;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u4e1a\u52a1\u903b\u8f91\u5904\u7406&#xff1a;\u5bf9\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6587\u672c\u8fdb\u884c\u4e8c\u6b21\u62fc\u63a5&#xff0c;\u7ec4\u88c5\u6210\u670d\u52a1\u5668\u7684\u54cd\u5e94\u6587\u672c<\/span><br \/>\n    root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;server has received msg, msg data is &#034;<\/span> <span class=\"token operator\">&#043;<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;data&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u5e8f\u5217\u5316&#xff1a;\u5c06\u4fee\u6539\u540e\u7684 JSON \u5bf9\u8c61\u91cd\u65b0\u8f6c\u6362\u4e3a\u683c\u5f0f\u5316\u7684\u3001\u53ef\u8bfb\u6027\u9ad8\u7684\u6807\u51c6\u5b57\u7b26\u4e32&#xff08;\u5e26\u6362\u884c\u548c\u7f29\u8fdb&#xff09;<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>string return_str <span class=\"token operator\">&#061;<\/span> root<span class=\"token punctuation\">.<\/span><span class=\"token function\">toStyledString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 6. \u54cd\u5e94\u56de\u5305&#xff1a;\u901a\u8fc7\u6301\u6709\u7684\u4f1a\u8bdd\u667a\u80fd\u6307\u9488&#xff0c;\u5b89\u5168\u5730\u5c06\u7ec4\u88c5\u597d\u7684\u6570\u636e\u548c\u539f\u6765\u7684\u6d88\u606f ID \u5f02\u6b65\u53d1\u9001\u56de\u5ba2\u6237\u7aef<\/span><br \/>\n    session<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Send<\/span><span class=\"token punctuation\">(<\/span>return_str<span class=\"token punctuation\">,<\/span> root<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;id&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asInt<\/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><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">LogicSystem<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">DealMsg<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u65e0\u9650\u6b7b\u5faa\u73af&#xff1a;\u4f5c\u4e3a\u72ec\u7acb\u7684\u540e\u53f0\u5de5\u4f5c\u7ebf\u7a0b&#xff0c;\u53ea\u8981\u8fdb\u7a0b\u4e0d\u9000\u51fa&#xff0c;\u5c31\u4e00\u76f4\u6e90\u6e90\u4e0d\u65ad\u5730\u6d88\u8d39\u961f\u5217\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">for<\/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 comment\">\/\/ 2. \u52a0\u9501\u4fdd\u62a4&#xff1a;\u7531\u4e8e\u53ef\u80fd\u6709\u591a\u4e2a\u7f51\u7edc\u7ebf\u7a0b\u5e76\u53d1\u8c03\u7528 PostMsgToQue \u5f80\u961f\u5217\u91cc\u585e\u6570\u636e&#xff0c;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6d88\u8d39\u8005\u7ebf\u7a0b\u5fc5\u987b\u5728\u64cd\u4f5c\u961f\u5217\u524d\u4f7f\u7528 unique_lock \u9501\u4f4f\u4e92\u65a5\u91cf _mutex<\/span><br \/>\n        std<span class=\"token double-colon punctuation\">::<\/span>unique_lock<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\">unique_lk<\/span><span class=\"token punctuation\">(<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 3. \u963b\u585e\u7b49\u5f85&#xff08;\u6838\u5fc3\u673a\u5236&#xff09;&#xff1a;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f7f\u7528 while \u5faa\u73af&#xff08;\u9632\u5fa1\u865a\u5047\u5524\u9192&#xff09;\u5224\u65ad&#xff1a;\u5982\u679c\u5f53\u524d\u6d88\u606f\u961f\u5217\u4e3a\u7a7a&#xff0c;\u4e14\u670d\u52a1\u5668\u6ca1\u6709\u6536\u5230\u505c\u6b62\u4fe1\u53f7<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>_msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">empty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token operator\">!<\/span>_b_stop<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u6761\u4ef6\u53d8\u91cf\u6302\u8d77&#xff1a;\u5f53\u524d\u7ebf\u7a0b\u7acb\u523b\u8fdb\u5165\u4f11\u7720\u72b6\u6001&#xff0c;\u540c\u65f6\u3010\u81ea\u52a8\u91ca\u653e unique_lk \u9501\u3011&#xff0c;\u8ba9\u7f51\u7edc\u7ebf\u7a0b\u53ef\u4ee5\u52a0\u9501\u585e\u6570\u636e\u3002<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5f53\u7f51\u7edc\u7ebf\u7a0b\u6295\u9012\u6570\u636e\u5e76\u8c03\u7528 _consume.notify_one() \u65f6&#xff0c;\u672c\u7ebf\u7a0b\u88ab\u5524\u9192&#xff0c;\u5e76\u3010\u81ea\u52a8\u91cd\u65b0\u5bf9 unique_lk \u52a0\u9501\u3011<\/span><br \/>\n            _consume<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span>unique_lk<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 4. \u3010\u9000\u51fa\u8def\u5f84\u3011&#xff1a;\u5224\u65ad\u662f\u5426\u63a5\u6536\u5230\u4e86\u505c\u670d\/\u5173\u95ed\u72b6\u6001\u4fe1\u53f7 (_b_stop &#061;&#061; true)<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f18\u96c5\u505c\u670d\u903b\u8f91&#xff1a;\u5373\u4f7f\u670d\u52a1\u5668\u8981\u5173\u95ed&#xff0c;\u4e5f\u4e0d\u80fd\u76f4\u63a5\u7c97\u66b4\u9000\u51fa&#xff0c;\u5fc5\u987b\u628a\u961f\u5217\u91cc\u79ef\u538b\u7684\u6240\u6709\u5269\u4f59\u903b\u8f91\u5168\u90e8\u6267\u884c\u5b8c<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_b_stop<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>_msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">empty<\/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 comment\">\/\/ \u53d6\u51fa\u961f\u5934\u8282\u70b9<\/span><br \/>\n                <span class=\"token keyword\">auto<\/span> msg_node <span class=\"token operator\">&#061;<\/span> _msg_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                cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;recv_msg id  is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_msg_id <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u5728\u6620\u5c04\u8868\u4e2d\u67e5\u627e\u5bf9\u5e94\u7684\u4e1a\u52a1\u56de\u8c03\u51fd\u6570<\/span><br \/>\n                <span class=\"token keyword\">auto<\/span> call_back_iter <span class=\"token operator\">&#061;<\/span> _fun_callbacks<span class=\"token punctuation\">.<\/span><span class=\"token function\">find<\/span><span class=\"token punctuation\">(<\/span>msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u5982\u679c\u662f\u672a\u6ce8\u518c\u7684\u975e\u6cd5\/\u672a\u77e5\u6d88\u606f ID&#xff0c;\u76f4\u63a5\u5f39\u51fa\u4e22\u5f03&#xff0c;\u907f\u514d\u5361\u6b7b<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>call_back_iter <span class=\"token operator\">&#061;&#061;<\/span> _fun_callbacks<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    _msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u8def\u7531\u5206\u53d1&#xff1a;\u6267\u884c\u5bf9\u5e94\u7684\u4e1a\u52a1\u56de\u8c03\u903b\u8f91<\/span><br \/>\n                call_back_iter<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">second<\/span><span class=\"token punctuation\">(<\/span>msg_node<span class=\"token operator\">-&gt;<\/span>_session<span class=\"token punctuation\">,<\/span> msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_msg_id<span class=\"token punctuation\">,<\/span><br \/>\n                    std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u6d88\u8d39\u5b8c\u6bd5&#xff0c;\u4ece\u961f\u5217\u4e2d\u79fb\u9664<\/span><br \/>\n                _msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u961f\u5217\u79ef\u538b\u7684\u810f\u6570\u636e\u5168\u90e8\u5904\u7406\u5e72\u51c0&#xff0c;\u5b89\u5168\u6253\u7834\u5916\u5c42\u7684 for(;;) \u6b7b\u5faa\u73af&#xff0c;\u5de5\u4f5c\u7ebf\u7a0b\u4f18\u96c5\u7ed3\u675f<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 5. \u3010\u6b63\u5e38\u6d88\u8d39\u8def\u5f84\u3011&#xff1a;\u5982\u679c\u6ca1\u6709\u505c\u670d&#xff0c;\u8bf4\u660e\u4ee3\u7801\u4ece while \u5faa\u73af\u4e2d\u51fa\u6765\u662f\u56e0\u4e3a\u201c\u961f\u5217\u4e2d\u6709\u65b0\u6570\u636e\u88ab\u5524\u9192\u201d\u4e86<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4ece\u903b\u8f91\u6d88\u606f\u961f\u5217\u4e2d\u83b7\u53d6\u6700\u524d\u9762\u7684\u4e00\u4e2a\u8282\u70b9<\/span><br \/>\n        <span class=\"token keyword\">auto<\/span> msg_node <span class=\"token operator\">&#061;<\/span> _msg_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        cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;recv_msg id  is &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_msg_id <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 6. \u67e5\u8868\u8def\u7531&#xff1a;\u6839\u636e\u8282\u70b9\u4e2d\u7684\u7f51\u7edc\u6d88\u606f ID&#xff0c;\u53bb map \u6620\u5c04\u8868\u4e2d\u67e5\u627e\u6ce8\u518c\u597d\u7684\u56de\u8c03\u51fd\u6570&#xff08;\u67e5\u8868\u6cd5\u4ee3\u66ff switch-case&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">auto<\/span> call_back_iter <span class=\"token operator\">&#061;<\/span> _fun_callbacks<span class=\"token punctuation\">.<\/span><span class=\"token function\">find<\/span><span class=\"token punctuation\">(<\/span>msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_msg_id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5982\u679c\u627e\u4e0d\u5230\u6ce8\u518c\u7684\u56de\u8c03\u51fd\u6570&#xff0c;\u8bf4\u660e\u8be5\u6d88\u606f\u6ca1\u6709\u5bf9\u5e94\u7684\u4e1a\u52a1\u903b\u8f91\u652f\u6301<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>call_back_iter <span class=\"token operator\">&#061;&#061;<\/span> _fun_callbacks<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            _msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f39\u51fa\u6b64\u6761\u65e0\u7528\u6d88\u606f<\/span><br \/>\n            <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span>       <span class=\"token comment\">\/\/ \u7ee7\u7eed\u4e0b\u4e00\u6b21\u5faa\u73af<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 7. \u4e1a\u52a1\u6267\u884c&#xff1a;\u8c03\u7528\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570&#xff08;\u5982 HelloWordCallBack&#xff09;&#xff0c;\u4f20\u5165\u4f1a\u8bdd\u3001ID\u53ca\u8fd8\u539f\u51fa\u6765\u7684\u5b57\u7b26\u4e32\u5305\u4f53\u6570\u636e<\/span><br \/>\n        call_back_iter<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">second<\/span><span class=\"token punctuation\">(<\/span>msg_node<span class=\"token operator\">-&gt;<\/span>_session<span class=\"token punctuation\">,<\/span> msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_msg_id<span class=\"token punctuation\">,<\/span><br \/>\n            std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">,<\/span> msg_node<span class=\"token operator\">-&gt;<\/span>_recvnode<span class=\"token operator\">-&gt;<\/span>_cur_len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 8. \u5f7b\u5e95\u51fa\u961f&#xff1a;\u6267\u884c\u5b8c\u6bd5\u540e&#xff0c;\u5c06\u8be5\u8282\u70b9\u79fb\u51fa\u961f\u5217&#xff0c;\u6b64\u65f6\u5f15\u7528\u8ba1\u6570\u51cf 1&#xff0c;\u5982\u679c\u65e0\u5f15\u7528\u5219\u81ea\u52a8\u6790\u6784\u91ca\u653e\u5185\u5b58<\/span><br \/>\n        _msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>:::success<\/p>\n<li>DealMsg\u903b\u8f91\u4e2d\u521d\u59cb\u5316\u4e86\u4e00\u4e2aunique_lock&#xff0c;\u4e3b\u8981\u662f\u7528\u6765\u63a7\u5236\u961f\u5217\u5b89\u5168&#xff0c;\u5e76\u4e14\u914d\u5408\u6761\u4ef6\u53d8\u91cf\u53ef\u4ee5\u968f\u65f6\u89e3\u9501\u3002lock_guard\u4e0d\u5177\u5907\u89e3\u9501\u529f\u80fd&#xff0c;\u6240\u4ee5\u6b64\u5904\u7528unique_lock\u3002<\/li>\n<li>\u6211\u4eec\u5224\u65ad\u961f\u5217\u4e3a\u7a7a&#xff0c;\u5e76\u4e14\u4e0d\u662f\u505c\u6b62\u72b6\u6001&#xff0c;\u5c31\u6302\u8d77\u7ebf\u7a0b\u3002\u5426\u5219\u7ee7\u7eed\u6267\u884c\u4e4b\u540e\u7684\u903b\u8f91&#xff0c;\u5982\u679c_b_stop\u4e3atrue&#xff0c;\u8bf4\u660e\u5904\u4e8e\u505c\u670d\u72b6\u6001&#xff0c;\u5219\u5c06\u961f\u5217\u4e2d\u672a\u5904\u7406\u7684\u6d88\u606f\u5168\u90e8\u5904\u7406\u5b8c\u7136\u540e\u9000\u51fa\u5faa\u73af\u3002\u5982\u679c_b_stop\u672afalse&#xff0c;\u5219\u8bf4\u660e\u6ca1\u6709\u505c\u670d&#xff0c;\u662fconsumer\u53d1\u9001\u7684\u6fc0\u6d3b\u4fe1\u53f7\u6fc0\u6d3b\u4e86\u7ebf\u7a0b&#xff0c;\u5219\u7ee7\u7eed\u53d6\u961f\u5217\u4e2d\u7684\u6570\u636e\u5904\u7406\u3002<\/li>\n<p>:::<\/p>\n<p>LogicSystem\u7684\u6790\u6784\u51fd\u6570\u9700\u8981\u7b49\u5f85\u5de5\u4f5c\u7ebf\u7a0b\u5904\u7406\u5b8c\u518d\u9000\u51fa&#xff0c;\u4f46\u662f\u5de5\u4f5c\u7ebf\u7a0b\u53ef\u80fd\u5904\u4e8e\u6302\u8d77\u72b6\u6001&#xff0c;\u6240\u4ee5\u8981\u53d1\u9001\u4e00\u4e2a\u6fc0\u6d3b\u4fe1\u53f7\u5524\u9192\u5de5\u4f5c\u7ebf\u7a0b\u3002\u5e76\u4e14\u5c06_b_stop\u6807\u8bb0\u8bbe\u7f6e\u4e3atrue\u3002<\/p>\n<p><span class=\"token comment\">\/\/ LogicSystem \u7684\u6790\u6784\u51fd\u6570&#xff1a;\u5728\u7a0b\u5e8f\u9000\u51fa\u6216\u5355\u4f8b\u5bf9\u8c61\u88ab\u9500\u6bc1\u65f6\u81ea\u52a8\u8c03\u7528<\/span><br \/>\n<span class=\"token class-name\">LogicSystem<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token operator\">~<\/span><span class=\"token function\">LogicSystem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u53d1\u51fa\u505c\u6b62\u4fe1\u53f7&#xff1a;\u5c06\u5168\u5c40\u9000\u51fa\u6807\u8bb0\u8bbe\u7f6e\u4e3a true\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u4f1a\u8ba9\u540e\u53f0\u6b63\u5728\u8fd0\u884c\u7684 DealMsg \u7ebf\u7a0b\u4e2d\u7684 while \u5faa\u73af\u6761\u4ef6\u7834\u88c2&#xff0c;\u5e76\u6fc0\u6d3b\u5176\u5185\u90e8\u7684\u201c\u6e05\u7406\u79ef\u538b\u6570\u636e\u201d\u903b\u8f91<\/span><br \/>\n    _b_stop <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u5524\u9192\u4f11\u7720\u7684\u7ebf\u7a0b&#xff1a;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5982\u679c\u6b64\u65f6\u961f\u5217\u4e3a\u7a7a&#xff0c;\u5de5\u4f5c\u7ebf\u7a0b\u5fc5\u7136\u963b\u585e\u5728 DealMsg \u51fd\u6570\u7684 _consume.wait(unique_lk) \u5904\u6b63\u5728\u201c\u7761\u89c9\u201d\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8c03\u7528 notify_one() \u53ef\u4ee5\u5f3a\u884c\u5c06\u5b83\u4ece\u4f11\u7720\u4e2d\u5524\u9192\u3002\u5524\u9192\u540e&#xff0c;\u5b83\u4f1a\u7acb\u523b\u68c0\u6d4b\u5230 _b_stop \u5df2\u7ecf\u53d8\u4e3a true&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4ece\u800c\u8df3\u51fa\u7b49\u5f85\u5faa\u73af&#xff0c;\u5f00\u59cb\u5904\u7406\u5584\u540e\u5de5\u4f5c\u3002<\/span><br \/>\n    _consume<span class=\"token punctuation\">.<\/span><span class=\"token function\">notify_one<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u7b49\u5f85\u7ebf\u7a0b\u5b89\u5168\u7ec8\u7ed3&#xff1a;<\/span><br \/>\n    <span class=\"token comment\">\/\/ join() \u662f\u4e00\u4e2a\u963b\u585e\u8c03\u7528&#xff0c;\u4e3b\u7ebf\u7a0b&#xff08;\u6216\u9500\u6bc1\u5355\u4f8b\u7684\u7ebf\u7a0b&#xff09;\u4f1a\u5728\u8fd9\u91cc\u505c\u4e0b\u811a\u6b65&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6b7b\u6b7b\u7b49\u5f85\u5de5\u4f5c\u7ebf\u7a0b&#xff08;_worker_thread&#xff09;\u628a DealMsg \u91cc\u7684\u4e8b\u60c5&#xff08;\u5305\u62ec\u961f\u5217\u91cc\u79ef\u538b\u7684\u810f\u6570\u636e&#xff09;\u5168\u90e8\u5904\u7406\u5b8c\u5e76\u9000\u51fa\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u53ea\u6709\u5de5\u4f5c\u7ebf\u7a0b\u5f7b\u5e95\u6d88\u4ea1\u4e86&#xff0c;join() \u624d\u4f1a\u8fd4\u56de&#xff0c;\u968f\u540e\u7ee7\u7eed\u9500\u6bc1 LogicSystem \u7684\u5176\u4ed6\u6210\u5458\u53d8\u91cf\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u80fd\u7edd\u5bf9\u9632\u6b62\u201c\u7cfb\u7edf\u5bf9\u8c61\u90fd\u62c6\u5149\u4e86&#xff0c;\u540e\u53f0\u5de5\u4f5c\u7ebf\u7a0b\u8fd8\u5728\u8bfb\u5199\u5185\u5b58\u201d\u5bfc\u81f4\u7684\u91ce\u6307\u9488\u5d29\u6e83\u3002<\/span><br \/>\n    _worker_thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/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>\u56e0\u4e3a\u7f51\u7edc\u5c42\u6536\u5230\u6d88\u606f\u540e\u6211\u4eec\u9700\u8981\u5c06\u6d88\u606f\u6295\u9012\u7ed9\u903b\u8f91\u961f\u5217\u8fdb\u884c\u5904\u7406&#xff0c;\u90a3\u4e48LogicSystem\u5c31\u8981\u5c01\u88c5\u4e00\u4e2a\u6295\u9012\u51fd\u6570\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u751f\u4ea7\u8005\u63a5\u53e3&#xff1a;\u4f9b\u5916\u90e8\u7f51\u7edc\u63a5\u6536\u7ebf\u7a0b\u8c03\u7528&#xff0c;\u5c06\u62fc\u88c5\u597d\u7684\u903b\u8f91\u6d88\u606f\u8282\u70b9\u5b89\u5168\u5730\u6295\u9012\u5230\u672c\u7cfb\u7edf\u7684\u4e1a\u52a1\u961f\u5217\u4e2d<\/span><br \/>\n<span class=\"token comment\">\/\/ msg: \u5c01\u88c5\u4e86\u5f53\u524d\u4f1a\u8bdd&#xff08;Session&#xff09;\u548c\u63a5\u6536\u5230\u7684\u7f51\u7edc\u5305\u4f53&#xff08;RecvNode&#xff09;\u7684\u903b\u8f91\u8282\u70b9\u667a\u80fd\u6307\u9488<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">LogicSystem<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">PostMsgToQue<\/span><span class=\"token punctuation\">(<\/span>shared_ptr <span class=\"token operator\">&lt;<\/span> LogicNode<span class=\"token operator\">&gt;<\/span> msg<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u52a0\u9501\u4fdd\u62a4&#xff1a;\u56e0\u4e3a\u591a\u4e2a\u7f51\u7edc\u63a5\u6536\u7ebf\u7a0b\u53ef\u80fd\u4f1a\u540c\u65f6\u5e76\u53d1\u6536\u5230\u4e0d\u540c\u5ba2\u6237\u7aef\u7684\u6570\u636e&#xff0c;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5fc5\u987b\u4f7f\u7528 unique_lock \u9501\u4f4f\u4e92\u65a5\u91cf _mutex&#xff0c;\u786e\u4fdd\u5f80\u5171\u4eab\u961f\u5217 _msg_que \u4e2d\u585e\u6570\u636e\u65f6\u7684\u7ebf\u7a0b\u5b89\u5168<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>unique_lock<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\">unique_lk<\/span><span class=\"token punctuation\">(<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u6570\u636e\u5165\u961f&#xff1a;\u5c06\u65b0\u5230\u6765\u7684\u903b\u8f91\u6d88\u606f\u8282\u70b9\u538b\u5165\u961f\u5217\u7684\u672b\u5c3e<\/span><br \/>\n    _msg_que<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u7cbe\u51c6\u5524\u9192\u63a7\u5236&#xff08;\u6027\u80fd\u4f18\u5316&#xff09;&#xff1a;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5224\u65ad\u5728\u5f53\u524d\u6d88\u606f\u5165\u961f\u4e4b\u540e&#xff0c;\u961f\u5217\u7684\u957f\u5ea6\u662f\u5426\u3010\u521a\u597d\u7b49\u4e8e 1\u3011<\/span><br \/>\n    <span class=\"token comment\">\/\/ <\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6838\u5fc3\u7ec6\u8282&#xff1a;\u5982\u679c size &#061;&#061; 1&#xff0c;\u8bf4\u660e\u5728\u5f53\u524d\u6d88\u606f\u5165\u961f\u4e4b\u524d&#xff0c;\u961f\u5217\u662f\u5b8c\u5168\u7a7a\u7684&#xff08;size \u662f 0&#xff09;\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u610f\u5473\u7740\u540e\u53f0\u7684\u6d88\u8d39\u8005\u7ebf\u7a0b&#xff08;DealMsg&#xff09;\u6b64\u524d\u5fc5\u7136\u56e0\u4e3a\u6ca1\u6d3b\u5e72\u800c\u963b\u585e\u5728\u6761\u4ef6\u53d8\u91cf\u7684 wait \u4e0a\u4f11\u7720\u4e86\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6b64\u65f6\u6211\u4eec\u9700\u8981\u7acb\u523b\u8c03\u7528 notify_one() 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