锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#20037;&#20037;&#31934;&#21697;&#20154;&#20154;&#20570;&#20154;&#20154;&#22971;&#20154;&#20154;&#29609;&#44;&#31934;&#21697;&#20154;&#22971;&#20262;&#19968;&#20108;&#19977;&#21306;&#20037;&#20037;&#44;&#19969;&#39321;&#29408;&#29408;&#33394;&#23159;&#23159;&#20037;&#20037;&#32508;&#21512;</title><link>http://m.shnenglu.com/whspecial/category/20720.html</link><description /><language>zh-cn</language><lastBuildDate>Wed, 30 Oct 2013 16:42:50 GMT</lastBuildDate><pubDate>Wed, 30 Oct 2013 16:42:50 GMT</pubDate><ttl>60</ttl><item><title>UNIX緗戠粶緙栫▼璇諱功絎旇</title><link>http://m.shnenglu.com/whspecial/archive/2013/10/31/204011.html</link><dc:creator>whspecial</dc:creator><author>whspecial</author><pubDate>Wed, 30 Oct 2013 16:32:00 GMT</pubDate><guid>http://m.shnenglu.com/whspecial/archive/2013/10/31/204011.html</guid><wfw:comment>http://m.shnenglu.com/whspecial/comments/204011.html</wfw:comment><comments>http://m.shnenglu.com/whspecial/archive/2013/10/31/204011.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/whspecial/comments/commentRss/204011.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/whspecial/services/trackbacks/204011.html</trackback:ping><description><![CDATA[&nbsp; &nbsp;榪欎竴孌靛湪鐪嬨�妘nix緗戠粶緙栫▼銆嬶紝鍥為【涔嬪墠鍋氶」鐩敤鍒扮殑涓�浜涗笢瑗匡紝鍦ㄨ繖閲屾�葷粨涓�涓嬶細<br /><br />&nbsp;<strong> &nbsp;(1)TCP濂楁帴鍙ｇ紪紼?/strong><br />&nbsp; &nbsp;榪欓噷浠嬬粛鍚勪釜鎺ュ彛鍑芥暟錛?br />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">1 鏂囦歡鎻忚堪絎?/span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峴ocket(int domain, int type, int protocol); //鐢熸垚鏂囦歡鎻忚堪絎?/span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峛ind(int sockfd, struct sockaddr *my_addr, int addrlen); //灝嗘湰鍦扮殑涓�涓鍙ｇ粦瀹氬埌fd涓婏紝涓�鑸彧闇�瑕佸湪server绔?/span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">2 鏈嶅姟绔?/span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峫isten(int sockfd, int backlog); //鏈変袱涓綔鐢細1,灝嗕富鍔ㄥ鎺ュ彛鍙樹負琚姩濂楁帴鍙?2,璁劇疆鏈�澶ц繛鎺ユ暟backlog</span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峚ccept(int sockfd, void *addr, int *addrlen); //涓哄緩绔嬪ソ鐨勮繛鎺ョ敓鎴愪竴涓柊鐨刦d</span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">3</span><span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">&nbsp;瀹㈡埛绔?/span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峜onnect(int sockfd, struct sockaddr *serv_addr, int addrlen); //榪涜socket榪炴帴</span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">4 閫氫俊</span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峴end(int sockfd, const void *msg, int len, unsigned int flags); //鍙戦�佽姹?/span><br style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;" />&nbsp; &nbsp;<span style="font-family: Arial; line-height: 24px; background-color: #ffffff;">錛峳ecv(int sockfd, void *buf, int len, unsigned int flags); //鎺ユ敹璇鋒眰</span><span style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;"><br /><br /><img src="http://m.shnenglu.com/images/cppblog_com/whspecial/20120130150030502.png" width="654" height="672" alt="" /></span><br /><br />&nbsp;<strong> &nbsp;(2)I/O澶氳礬澶嶇敤</strong><br />&nbsp;&nbsp;&nbsp;I/O澶氳礬澶嶇敤鏄寚鍐呮牳涓�鏃﹀彂鐜拌繘紼嬫寚瀹氱殑涓�涓垨鑰呭涓狪O鏉′歡鍑嗗璇誨彇錛屽畠灝遍�氱煡璇ヨ繘紼嬨�傛寜鐓с�奤NIX緗戠粶緙栫▼銆嬬殑璇存硶錛孖/O澶氳礬澶嶇敤鐢ㄤ簬浠ヤ笅涓夌鎯呭喌錛?br /><span>&nbsp; &nbsp;a)</span><span style="font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;">涓�涓猅CP鏈嶅姟鍣ㄦ棦瑕佸鐞嗙洃鍚鎺ュ彛錛屽張瑕佸鐞嗗凡榪炴帴濂楁帴鍙ｏ紱<br /></span><span>&nbsp; &nbsp;b)</span><span style="font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;">涓�涓湇鍔″櫒鏃㈣澶勭悊TCP錛屽張瑕佸鐞哢DP錛?br /></span><span>&nbsp; &nbsp;c)</span><span style="font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;">褰撳鎴風澶勭悊澶氫釜鎻忚堪瀛楋紙姣斿澶勭悊浜や簰寮忚緭鍏ュ拰緗戠粶濂楁帴鍙ｏ級</span><span style="color: #444444; font-family: 'Open Sans', Helvetica, Arial, sans-serif; line-height: 24px; background-color: #ffffff;"><br /></span>&nbsp; &nbsp;鐩墠琚箍娉涗嬌鐢ㄧ殑鏄痵elect鍜宔poll錛?br />&nbsp; &nbsp;2.1,select<br />&nbsp;&nbsp;&nbsp;int select(int maxfdp1,fd_set *readset,fd_set *writeset,fd_set *exceptset,const struct timeval *timeout)<br />&nbsp; &nbsp;絎竴涓弬鏁版寚瀹氭渶澶х殑fd鏁扮洰錛屼腑闂翠笁涓垎鍒槸琚洃鎺х殑璇匯�佸啓銆佸紓甯哥殑fd闆嗭紝鏈�鍚庝竴涓槸瓚呮椂鏃墮棿銆俿elect鍑芥暟浼氶樆濉炵瓑寰咃紝鐩村埌鐩戞帶鐨刦d闆嗕腑鏈塮d灝辯華錛屾垨鑰呭凡緇忚秴鏃躲�?br />&nbsp; &nbsp;2.2,epoll<br />&nbsp; &nbsp;epoll鐩告瘮浜巗elect錛屼富瑕佺殑濂藉鍦ㄤ簬瀹冧笉鍍弒elect涓�鏍峰幓杞fd闆嗭紝鑰屾槸鐢卞唴鏍稿幓瑙﹀彂錛涘彟澶栧畠鏀寔鏇村ぇ鐨刦d涓暟<br /><br />&nbsp;<strong> &nbsp;(3)緗戠粶鏈嶅姟鍣ㄦā鍨?/strong><br />&nbsp; &nbsp;鍏跺疄緗戠粶鏈嶅姟鍣ㄦā鍨嬭繕鏄瘮杈冨鏉傜殑錛屾湁涓�綃囨瘮杈冪粡鍏哥殑鏂囩珷鍙仛c10K problem錛岄摼鎺ュ涓嬶細<a >http://www.kegel.com/c10k.html</a><br />&nbsp; &nbsp;榪欓噷璁板綍鐨勬槸寰堢畝鍗曠殑鍑犵澶氱嚎紼婽CP鏈嶅姟鍣ㄦā鍨嬶紝欏轟究鍙互姣旇緝涓嬶細<br />&nbsp; &nbsp;2.1 涓葷嚎紼媋ccept錛屼負姣忎釜client鍒涘緩涓�涓嚎紼?br />&nbsp; &nbsp;2.2 浣跨敤綰跨▼姹狅紝鍏ㄩ儴accept錛屽綋鏈夎繛鎺ユ潵鐨勬椂鍊欏叾涓煇涓嚎紼嬭繘琛屽鐞?br />&nbsp; &nbsp;2.3 浣跨敤綰跨▼姹狅紝涓葷嚎紼媋ccept錛屽綋鏈夎繛鎺ユ潵鐨勬椂鍊欎富綰跨▼灝嗗叾鏀懼叆闃熷垪錛岀敱宸ヤ綔綰跨▼榪涜澶勭悊錛堢敓浜ц�?娑堣垂鑰呮ā鍨嬶級<br />&nbsp; &nbsp;1鏂規榪囦簬棰戠箒鍦拌繘琛岀嚎紼嬪垱寤洪攢姣侊紝2鏂規鍦ㄤ竴涓繛鎺ヨ繃鏉ユ椂浼氬甫鏉ユ儕緹ょ幇璞★紝3鏂規浼氭瘮鍓嶄袱涓柟妗堣濂戒竴浜涖�?img src ="http://m.shnenglu.com/whspecial/aggbug/204011.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/whspecial/" target="_blank">whspecial</a> 2013-10-31 00:32 <a href="http://m.shnenglu.com/whspecial/archive/2013/10/31/204011.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss>                   <footer>
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