{"id":305,"date":"2013-05-15T11:48:37","date_gmt":"2013-05-15T11:48:37","guid":{"rendered":"496e05e1aea0a9c4655800e8a7b9ea28"},"modified":"2013-05-15T11:48:37","modified_gmt":"2013-05-15T11:48:37","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/305","title":{"rendered":"Socket\u7b14\u8bb0"},"content":{"rendered":"
\n

1\u3001  <\/span><\/span><\/span><\/b>\u4e3a\u4e86\u589e\u52a0\u6548\u7387\uff0c\u53ef\u4ee5\u8003\u8651\u91c7\u7528\u65e0\u5f02\u5e38\u7684\u51fd\u6570<\/span><\/strong>
\n<\/span>\u5728<\/span><\/span>.net2.0<\/span>\u4e2d<\/span><\/span>Socket.Send,Socket.Receive <\/span>\u6709\u4e86\u65e0\u5f02\u5e38\u7684\u51fd\u6570<\/span><\/span>
\nSocket.Send(Byte[], Int32, Int32, SocketFlags, SocketError)
\nSocket.Receive(Byte[], Int32, Int32, SocketFlags, SocketError)
\n<\/span>\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5f02\u5e38\uff0c\u5c31\u7b49\u4e8e\u589e\u52a0\u6548\u7387\u3002<\/span><\/span> <\/span><\/p>\n

2<\/span><\/strong><\/span>\u3001<\/span><\/strong>Socket.Connected <\/span><\/strong>\u4e0d\u662f\u5f53\u524d\u7684<\/span><\/strong>Socket<\/span><\/strong>\u72b6\u6001<\/span><\/strong>
\nMSDN<\/span>\u539f\u6587\uff1a\u83b7\u53d6\u4e00\u4e2a\u503c\uff0c\u8be5\u503c\u6307\u793a<\/span><\/span> Socket <\/span>\u662f\u5728\u4e0a\u6b21<\/span><\/span> Send <\/span>\u8fd8\u662f<\/span><\/span> Receive <\/span>\u64cd\u4f5c\u65f6\u8fde\u63a5\u5230\u8fdc\u7a0b\u4e3b\u673a\u3002<\/span><\/span>
\n<\/span>\u5e94\u5f53\u5982\u4f55\u89e3\u51b3\u5462\uff1f<\/span><\/span><\/p>\n

\u540c\u6837<\/span><\/span>MSDN<\/span>\u4e5f\u544a\u8bc9\u4e86\u6211\u4eec\uff1a<\/span><\/span>
\nConnected <\/span>\u5c5e\u6027\u7684\u503c\u53cd\u6620\u6700\u8fd1\u64cd\u4f5c\u65f6\u7684\u8fde\u63a5\u72b6\u6001\u3002\u5982\u679c\u60a8\u9700\u8981\u786e\u5b9a\u8fde\u63a5\u7684\u5f53\u524d\u72b6\u6001\uff0c\u8bf7\u8fdb\u884c\u975e\u963b\u6b62\u3001\u96f6\u5b57\u8282\u7684<\/span><\/span> Send <\/span>\u8c03\u7528\u3002<\/span><\/span> <\/span>\u5982\u679c\u8be5\u8c03\u7528\u6210\u529f\u8fd4\u56de\u6216\u5f15\u53d1<\/span><\/span> WAEWOULDBLOCK <\/span>\u9519\u8bef\u4ee3\u7801<\/span><\/span> (10035)<\/span>\uff0c\u5219\u8be5\u5957\u63a5\u5b57\u4ecd\u7136\u5904\u4e8e\u8fde\u63a5\u72b6\u6001\uff1b\u5426\u5219\uff0c\u8be5\u5957\u63a5\u5b57\u4e0d\u518d\u5904\u4e8e\u8fde\u63a5\u72b6\u6001\u3002<\/span><\/span>
\n3<\/span><\/strong><\/span>\u3001\u8981\u7528<\/span><\/strong>Socket.Poll<\/span><\/strong>\u5224\u65ad\u662f\u5426\u53ef\u4ee5\u63a5\u6536\uff0c\u4e0d\u8981\u7528<\/span><\/strong>Socket.Available<\/span><\/strong>
\n<\/span>\u867d\u7136<\/span><\/span>Socket.Available<\/span>\u53ef\u4ee5\u5077\u7aa5\u5230\u5f53\u524d<\/span><\/span>Recv<\/span>\u7f13\u51b2\u533a\u5b57\u8282\u6570\uff0c\u800c\u4e14<\/span><\/span>Available<\/span>\u662f<\/span><\/span>Poll<\/span>\u901f\u5ea6\u7684\u4e24\u500d\uff0c\u4f46\u662f<\/span><\/span>MSDN<\/span>\u8bf4\u5230<\/span>\uff1a\u5982\u679c\u8fdc\u7a0b\u4e3b\u673a\u4f7f\u7528<\/span><\/span> Shutdown <\/span>\u65b9\u6cd5\u5173\u95ed\u4e86<\/span><\/span> Socket <\/span>\u8fde\u63a5\uff0c\u5e76\u4e14\u6240\u6709\u53ef\u7528\u6570\u636e\u5747\u5df2\u6536\u5230\uff0c\u5219<\/span><\/span> Receive <\/span>\u65b9\u6cd5\u5c06\u7acb\u5373\u5b8c\u6210\u5e76\u8fd4\u56de\u96f6\u5b57\u8282\u3002<\/span><\/span>
\n<\/span>\u6240\u4ee5\u5f53\u7f51\u7edc\u65ad\u5f00\u7684\u65f6\u5019\u5355\u7eaf\u4f7f\u7528<\/span><\/span>Socket.Available<\/span>\u5224\u65ad\u662f\u5426<\/span><\/span>recv<\/span>\u5230\u6570\u636e\u4f1a\u5b58\u5728\u4e0d\u77e5\u9053\u5ba2\u6237\u7aef\u5df2\u7ecf\u65ad\u5f00<\/span><\/span>Bug
\n<\/span>\u8865\u5145\uff1a<\/span>\u4e0d\u63a8\u8350\u4f7f\u7528<\/span><\/span>Socket.Poll<\/span>\u5bf9<\/span><\/span>Socket<\/span>\u7684\u5217\u8868\u904d\u5386\uff0c\u5e94\u5f53\u4f7f\u7528<\/span><\/span>Socket.Select<\/span>\uff08\u6216\u8005\u5176\u4ed6\u6a21\u578b\uff09\uff0c<\/span><\/span>Socket.Poll<\/span>\u662f\u5bf9<\/span><\/span>Socket.Select<\/span>\u7684\u5c01\u88c5\uff0c\u6267\u884c<\/span><\/span>Socket.Poll<\/span>\u8017\u65f6\u662f\u975e\u963b\u585e<\/span><\/span>Socket.Recv<\/span>\u7684\u4e09\u500d\u3002<\/span><\/span>
\n4<\/span><\/strong><\/span>\u3001\u975e\u963b\u585e\u6a21\u5f0f\u4e0d\u80fd\u91c7\u7528<\/span><\/strong>Receive<\/span><\/strong>\u7684\u8fd4\u56de\u503c\u8868\u793a\u662f\u5426\u65ad\u5f00<\/span><\/strong>
\n<\/span>\u7b2c<\/span><\/span>3<\/span>\u6761\u8bf4\u9053\uff1a\u5982\u679c\u8fdc\u7a0b\u4e3b\u673a\u4f7f\u7528<\/span><\/span> Shutdown <\/span>\u65b9\u6cd5\u5173\u95ed\u4e86<\/span><\/span> Socket <\/span>\u8fde\u63a5\uff0c\u5e76\u4e14\u6240\u6709\u53ef\u7528\u6570\u636e\u5747\u5df2\u6536\u5230\uff0c\u5219<\/span><\/span> Receive <\/span>\u65b9\u6cd5\u5c06\u7acb\u5373\u5b8c\u6210\u5e76\u8fd4\u56de\u96f6\u5b57\u8282\u3002\u4f46\u8fd9\u5e76\u4e0d\u80fd\u963b\u585e\u6a21\u5f0f\u8bf4\u660e<\/span><\/span>Socket<\/span>\u5df2\u7ecf\u65ad\u5f00\uff0c<\/span>\u8fd9\u4e00\u6761\u548c<\/span><\/span>C<\/span>\u7684<\/span><\/span>recv<\/span>\u51fd\u6570\u4e0d\u540c\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f<\/span>\u3002\u9700\u8981\u5224\u65ad<\/span><\/span>out<\/span>\u51fa\u6765\u7684<\/span><\/span>SocketError<\/span>\uff0c\u5f53\u4e0d\u4e3a<\/span><\/span>SocketError.Success<\/span>\u3001<\/span><\/span>SocketError.Interrupted<\/span>\u548c<\/span><\/span>SocketError.WouldBlock<\/span>\u65f6\u5c31\u53ef\u4ee5\u8ba4\u4e3a\u7f51\u7edc\u5df2\u7ecf\u65ad\u5f00\u3002<\/span><\/span>
\n5<\/span><\/strong><\/span>\u3001<\/span><\/strong>Send<\/span><\/strong>\u53ef\u80fd\u51fa\u73b0\u7f13\u51b2\u533a\u6ee1\u7684\u60c5\u51b5<\/span><\/strong>
\n<\/span>\u5224\u65ad<\/span><\/span>out<\/span>\u51fa\u6765\u7684<\/span><\/span>SocketError<\/span>\uff0c\u5982\u679c\u7b49\u4e8e<\/span><\/span>SocketError.WouldBlock<\/span>\uff0c\u5219\u662f<\/span><\/span>Send<\/span>\u7f13\u51b2\u533a\u5df2\u6ee1\uff0c\u5e94\u65ad\u5f00\u8be5<\/span><\/span>Socket<\/span>\uff0c\u5426\u5219\u5f71\u54cd\u6574\u4f53\u901f\u5ea6\uff0c\u800c\u4e0d\u5e94\u5f53<\/span><\/span>again, <\/span>\u53cd\u8fc7\u6765\u8bf4\u5141\u8bb8\u7684\u9519\u8bef\u7801\u53ea\u6709<\/span><\/span>SocketError.Interrupted<\/span>\uff0c\u6b64\u65f6\u53ef\u4ee5\u91cd\u6765\u4e00\u6b21\u3002<\/span><\/span>
\n6<\/span><\/strong><\/span>\u3001\u4e3b\u52a8\u65ad\u5f00<\/span><\/strong>Socket <\/span><\/strong>
\n<\/span><\/b>MSDN<\/span>\u8bf4\u9053<\/span><\/span>:<\/span>\u5982\u679c\u5f53\u524d\u4f7f\u7528\u7684\u662f\u9762\u5411\u8fde\u63a5\u7684<\/span><\/span> Socket<\/span>\uff0c\u5219\u5fc5\u987b\u5148\u8c03\u7528<\/span><\/span> Shutdown <\/span>\u65b9\u6cd5\uff0c\u7136\u540e\u624d\u80fd\u5173\u95ed<\/span><\/span> Socket<\/span>\u3002\u8fd9\u53ef\u4ee5\u786e\u4fdd\u5728\u5df2\u8fde\u63a5\u7684\u5957\u63a5\u5b57\u5173\u95ed\u4e4b\u524d\uff0c\u5df2\u53d1\u9001\u548c\u63a5\u6536\u8be5\u5957\u63a5\u5b57\u4e0a\u7684\u6240\u6709\u6570\u636e\u3002<\/span><\/span>
\n<\/span>\u6240\u4ee5\uff0c\u7f51\u7edc\u5e93\u7684<\/span><\/span>Close<\/span>\u51fd\u6570\u53ef\u4ee5\u5c01\u88c5\u4e3a\u5148\u8c03\u7528<\/span><\/span> Shutdown(SocketShutdown.Both)<\/span>\uff0c\u5728\u8c03\u7528<\/span><\/span>Close()<\/span>\u3002<\/span><\/span>
\n7<\/span><\/strong><\/span>\u3001<\/span><\/strong>Socket<\/span><\/strong>\u5df2\u7ecf\u5173\u95ed<\/span><\/strong>(Close)<\/span><\/strong>\u4f46\u4e0d\u80fd\u5728\u53e6\u4e00\u7aef\u65ad\u5f00<\/span><\/strong>
\n<\/span>\u4e00\u7aef<\/span><\/span>Scoket<\/span>\u5df2\u7ecf\u5173\u95ed\u4e86\uff0c\u4f46\u53e6\u4e00\u7aef\u77ed\u65f6\u95f4\u5185\u4ecd\u53ef\u4ee5\u53d1\u9001\u6570\u636e\uff01\u8fd9\u4e2a\u95ee\u9898\u8fd8\u6ca1\u6709\u627e\u5230\u89e3\u51b3\u529e\u6cd5\u7684\uff0c\u4f46\u539f\u56e0\u5df2\u77e5\uff0c<\/span>\u5728\u300a<\/span><\/span>Windows<\/span>\u7f51\u7edc\u7f16\u7a0b\u6280\u672f\u300b\u4e00\u4e66<\/span><\/span>(P139-P140)<\/span>\u4e2d\u8bf4\u9053<\/span><\/span>:<\/span>\u88ab\u52a8\u5173\u95ed\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u7528\u7a0b\u5e8f\u4f1a\u4ece\u5bf9\u65b9\u90a3\u91cc\u63a5\u6536\u4e00\u4e2a<\/span><\/span>FIN<\/span>\u5305\uff0c\u5e76\u7528\u4e00\u4e2a<\/span><\/span>ACK<\/span>\u5305\u505a\u51fa\u54cd\u5e94\u3002\u6b64\u65f6\uff0c\u5e94\u7528\u7a0b\u5e8f\u7684\u5957\u63a5\u5b57\u4f1a\u53d8\u6210<\/span><\/span>ClOSE_WAIT<\/span>\u72b6\u6001\u3002\u7531\u4e8e\u5bf9\u65b9\u5df2\u5173\u95ed\u81ea\u5df1\u7684\u5957\u63a5\u5b57\uff0c\u6240\u4ee5\u4e0d\u80fd\u518d\u53d1\u9001\u6570\u636e\u4e86\u3002<\/span>\u4f46\u5e94\u7528\u7a0b\u5e8f\u5374\u4e0d\u540c\uff0c\u5b83\u80fd\u4e00\u76f4\u53d1\u9001\u6570\u636e\uff0c\u76f4\u5230\u5bf9\u65b9\u7684\u5957\u63a5\u5b57\u5df2\u5173\u95ed\u4e3a\u6b62\u3002<\/span><\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\n

1\u3001  <\/span><\/span><\/span><\/b>\u4e3a\u4e86\u589e\u52a0\u6548\u7387\uff0c\u53ef\u4ee5\u8003\u8651\u91c7\u7528\u65e0\u5f02\u5e38\u7684\u51fd\u6570<\/span><\/strong>
<\/span>\u5728<\/span><\/span>.net2.0<\/span>\u4e2d<\/span><\/span>Socket.Send,Socket.Receive <\/span>\u6709\u4e86\u65e0\u5f02\u5e38\u7684\u51fd\u6570<\/span><\/span>
\nSocket.Send(Byte[], Int32, Int32, SocketFlags, SocketError)
\nSocket.Receive(Byte[], Int32, Int32, SocketFlags, SocketError)
<\/span>\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5f02\u5e38\uff0c\u5c31\u7b49\u4e8e\u589e\u52a0\u6548\u7387\u3002<\/span><\/span><\/p>\n

2<\/span><\/strong><\/span>\u3001<\/span><\/strong>Socket.Connected <\/span><\/strong>\u4e0d\u662f\u5f53\u524d\u7684<\/span><\/strong>Socket<\/span><\/strong>\u72b6\u6001<\/span><\/strong>
\nMSDN<\/span>\u539f\u6587\uff1a\u83b7\u53d6\u4e00\u4e2a\u503c\uff0c\u8be5\u503c\u6307\u793a<\/span><\/span> Socket <\/span>\u662f\u5728\u4e0a\u6b21<\/span><\/span> Send <\/span>\u8fd8\u662f<\/span><\/span> Receive <\/span>\u64cd\u4f5c\u65f6\u8fde...<\/span><\/span><\/p>\n<\/div>\n

\u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[283],"tags":[118],"class_list":["post-305","post","type-post","status-publish","format-standard","hentry","category-technologys","tag-socket"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=305"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/305\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}