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>&#29408;&#29408;&#20154;&#22971;&#20037;&#20037;&#20037;&#20037;&#20037;&#32508;&#21512;&#44;&#23159;&#23159;&#20116;&#26376;&#28145;&#28145;&#20037;&#20037;&#31934;&#21697;&#44;&#20037;&#20037;&#57;&#57;&#28909;&#21482;&#26377;&#39057;&#31934;&#21697;&#56;</title><link>http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108778.html#108784</link><dc:creator>luckycat</dc:creator><author>luckycat</author><pubDate>Wed, 03 Mar 2010 06:41:00 GMT</pubDate><guid>http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108778.html#108784</guid><description><![CDATA[鎴戣鍏變韓鍐呭瓨鐨勮繖縐?quot;闈炴樉紺哄垹闄よ嚜淇濈暀鎬?quot;鏄緢鏈夌敤鐨勭壒鎬ц�屼笉鏄棶棰橈紝涔熻褰撴椂璁捐鍏變韓鍐呭瓨鏈哄埗鏃惰繖縐嶇壒鎬ф槸鏈夋剰鎻愪緵鐨?
<br>璁炬兂涓�涓畝鍗曠殑渚嬪瓙:
<br>鎴戜滑浣跨敤涓�鍧楁湁璁塊棶鎺у埗淇濇姢鐨勫唴瀛樼紦鍐插尯鏉ュ瓨鍌ㄨ繘紼嬫垨綰跨▼涔嬮棿鍏辯敤鐨勭殑鏁版嵁.
<br>騫朵笖鎴戜滑闇�瑕佷繚璇佹暟鎹殑瀹夊叏鎬э紝鍗充嬌server鍊掓帀錛岃繖鍧楃紦鍐插尯閲岄潰鐨勬暟鎹篃涓嶈兘涓㈠け.
<br>1. 瀵逛簬澶氱嚎紼嬬殑鎯呭喌錛屽綋涓�涓嚎紼媍ore鎺変箣鍚?姣斿鍥犱負segment fault)錛岀嚎紼嬫墍瀵瑰簲鐨勮繘紼嬪皢涓嶈兘騫稿厤.
<br>鍦ㄨ繖縐嶆儏鍐典笅錛屽鏋滄垜浠嬌鐢ㄧ殑鏄竴鑸殑&quot;鍐呭瓨緙撳啿鍖?quot;鑰屼笉鏄叡浜唴瀛橈紝閭ｄ箞褰撹繘紼嬮��鍑哄悗錛?<br>榪欏潡緙撳啿鍖哄搴旂殑鍐呭瓨絀洪棿灝嗕細琚郴緇熷洖鏀墮噸鏂板垎閰嶇粰鍏跺畠榪涚▼浣跨敤錛岀紦鍐插尯涓搴旂殑鏁版嵁涔熷氨涓㈠け浜?
<br>浣嗘槸濡傛灉鎴戜滑鎹㈢敤鍏變韓鍐呭瓨鏉ヤ綔涓虹嚎紼嬮棿浜ゆ崲鏁版嵁鐨勭紦鍐插尯錛屾垜浠氨鑳藉緢濂界殑瑙ｅ喅榪欎釜闂.
<br>2. 鍦ㄥ榪涚▼鐨勬儏鍐典笅錛屼笉浣嗚兘婊¤凍涓婅堪鐗規�э紝鑰屼笖鍏變韓鍐呭瓨涔熸槸榪涚▼闂存暟鎹氦鎹㈢殑涓�縐嶉珮鏁堟柟寮?
<br>鑷充簬鍏變韓鍐呭瓨鐨勬墜鍔ㄥ垹闄ら棶棰橈紝鎴戠殑鍋氭硶鏄紝鍦ㄧ敓鎴怚PC瀵硅薄鏃訛紝灝嗗搴旂殑ftok鐢熸垚鐨刱ey鍊煎啓鍏ュ埌涓�涓枃浠朵腑錛?<br>鐢熸垚綾諱技浜庝笅闈㈢殑shell鑴氭湰錛岃繖鏍峰綋鎴戜滑闇�瑕佹墜鍔ㄥ垹闄PC鏃朵篃寰堟柟渚?
<br>
<br>ipcrm -M xxx
<br>ipcrm -Q xxx
<br>ipcrm -S xxx
<br>
<br>鐩告瘮浜庨�氳繃socket鏉ヤ綔涓鴻繘紼嬮棿閫氫俊鐨勬柟寮忥紝鍏變韓鍐呭瓨鐨勬渶澶т笉瓚沖湪浜?quot;涓嶈兘璺ㄦ満鍣ㄥ叡鐢?quot;.
<br>after all, there is no silver bullet :)<img src ="http://www.shnenglu.com/zjl-1026-2001/aggbug/108784.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/zjl-1026-2001/" target="_blank">luckycat</a> 2010-03-03 14:41 <a href="http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108778.html#108784#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>re: Linux涓嬬敤淇″彿閲忓疄鐜板鍏變韓鍐呭瓨鐨勮闂繚鎶?涓�)</title><link>http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108768.html#108775</link><dc:creator>娌欐紶閲岀殑嫻瘋睔</dc:creator><author>娌欐紶閲岀殑嫻瘋睔</author><pubDate>Wed, 03 Mar 2010 05:19:00 GMT</pubDate><guid>http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108768.html#108775</guid><description><![CDATA[鍛靛懙錛屼綘璇寸殑娌￠敊錛屾垜涓婇潰鐨勭▼搴忓湪榪欎竴鐐逛笂鍙槸鐢ㄤ竴縐嶅彇宸х殑鏂瑰紡鏉ュ仛鐨勶紝鏄竴涓猟emo鐗堟湰錛岃繕浼氬湪鍚庣畫鏇村鐨勪粙緇嶄腑榪涜瀹屽杽銆?<br>
<br>闈炲父鎰熻阿浣犳彁鍑虹殑寤鴻錛屼篃嬈㈣繋浣犵戶緇叧娉紝涓�璧蜂氦嫻侀棶棰橈紝鍒嗕韓緇忛獙銆?img src ="http://www.shnenglu.com/zjl-1026-2001/aggbug/108775.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/zjl-1026-2001/" target="_blank">娌欐紶閲岀殑嫻瘋睔</a> 2010-03-03 13:19 <a href="http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108768.html#108775#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>re: Linux涓嬬敤淇″彿閲忓疄鐜板鍏變韓鍐呭瓨鐨勮闂繚鎶?涓�)</title><link>http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108768.html#108773</link><dc:creator>luckycat</dc:creator><author>luckycat</author><pubDate>Wed, 03 Mar 2010 05:15:00 GMT</pubDate><guid>http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108768.html#108773</guid><description><![CDATA[浣犵殑浠ｇ爜涓槸閫氳繃鍒ゆ柇淇″彿閲忕殑鍊間負0鏉ヤ綔涓哄鍏變韓鍐呭瓨璇誨彇鎿嶄綔鐨勪緷鎹紝鍗蟲槸濡備笅浠ｇ爜:
<br> wait_v(semid);
<br> printf(&quot;Message geted is: %s \n&quot;,shm + 1);
<br> 
<br>浣嗗疄闄呬笂榪欓噷鏈変竴涓綔鍦ㄧ殑闂:
<br>鍗沖鏋?wait_v(semid); 鎴愬姛鍚庯紝鍦ㄦ墽琛屾帴涓嬫潵鐨刾rintf(&quot;Message geted is: %s \n&quot;,shm + 1)涔嬪墠錛岃繘紼嬭鎸傝搗.
<br>閭ｄ箞姝ゆ椂 server 榪涚▼鍙兘浼氶噸鏂拌幏鍙栬繖涓俊鍙烽噺騫跺鍏變韓鍐呭瓨涓殑鏁版嵁榪涜鍐欐搷浣?褰撶劧錛屼綘榪欓噷鐢╯erver sleep鐨勬椂闂磋繙澶т簬client sleep鐨勬椂闂存潵瑙ｅ喅榪欎釜闂)
<br>褰撴寕璧風殑榪涚▼閲嶆柊琚皟搴︽姇鍏ヨ繍琛屽悗錛屾鏃秔rintf(&quot;Message geted is: %s \n&quot;,shm + 1)鐨勬暟鎹疄闄呬笂灝變笉鏄痺ait_v(semid)鎴愬姛鍚庡叡浜唴瀛樹腑瀵瑰簲鐨勬暟鎹?
<br>
<br>鎴戣寰楀浜庤繖縐嶅吀鍨嬬殑 &quot;provider/consumer&quot; 妯″瀷錛屼竴縐嶆洿濂界殑鍋氭硶鏄?<br>// for provider               // for consumer
<br>P( write_sem );              P( read_sem );
<br>
<br>// write operation           // read operation
<br>	
<br>V( read_sem );               V( write_sem );
<br>
<br>
<br>褰撶劧錛岃繖閲屾垜浠渶瑕佷嬌鐢?write_sem 鍜?read_sem 涓や釜淇″彿閲?<img src ="http://www.shnenglu.com/zjl-1026-2001/aggbug/108773.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/zjl-1026-2001/" target="_blank">luckycat</a> 2010-03-03 13:15 <a href="http://www.shnenglu.com/zjl-1026-2001/archive/2010/03/03/108768.html#108773#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss>                           <footer>
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