polly poll

following is the survey.php code to implement the survey function: ?$data = "Data.txt";$votes = "Survey.txt";$dataf =file ($data); /* Read the items in the survey project document * *$file _votes=fopen ($votes, "R");$line _votes=fgets ($file _votes, 255); * * read out the results of the investigation as recorded.Fclose ($file _votes);$single _vote=explode ("|"), $line _votes); /* and the data is cut into the specified string, then the string is passed back to the array variable.if ($result!=1)/

I/O multiplexing: A list of descriptors is constructed first, and then a function is called until one of these descriptors is ready for I/O and the function returns. When returned, it tells the process which descriptors are ready to be I/O. The three functions poll, Pselect, and select Enable us to perform I/O multiplex transfer.One, select function On all POSIX-compliant platforms, the Select function allows us to perform I/O multiplexing. The para

Error | Error handling | Design and implementation of a poll-type error handling mechanism (i.) -------------------------------------------------------------------------------- Summary This paper briefly introduces the design idea and implementation of a polling error handling mechanism, which can flexibly realize the extension of error handling mode and the customization of error information format. ---------------------------------------------

Reprinted from:Http://www.iteye.com/topic/469644 Let's talk about select:1. Socket quantity limit: the number of sockets that can be operated in this mode is determined by fd_setsize. The default kernel value is 32*32 = 1024.2. Operation restrictions: the fd_setsize socket is traversed to complete the scheduling. No matter which socket is active, it is traversed. Poll:1. The number of sockets is almost unlimited: The FD list corresponding to the s

I wrote it myself. A poll showed that the bar with the highest number of votes was 100%. public class voteresult:system.web.ui.page{protected System.Web.UI.HtmlControls.HtmlTableCell td_vote;protected System.Web.UI.HtmlControls.HtmlTable tab_result;private void Page_Load (object sender, System.EventArgs e)// Place the user code here to initialize the page {tab_result=new HtmlTable (); string voteid=request.params["Voteid"];string optionid=request.par

Long Longf[101][101];//recount per round, f[Ouyangwen current votes [Yi等 current votes], current total number of scenarios5 intMain ()6 {7 Long LongM,n;8scanf"%lld%lld",m,n);9f[1][0]=1;//Likewise, the first vote must be given to OuyangwenTen for(intI=1; i) One { A for(intj=0; j) - { - if(I>j (i!=1|| j!=0)) f[i][j]=f[i-1][j]+f[i][j-1];//to reach the current number of votes, either add a vote to Ouyangwen, or add a vote to Yi等. the Else if(I

Question Description Ouyangwen and Yi等 campaign chairman, Wangliangsen responsible for recount, altogether M+n Zhang, the result Ouyangwen win, known Ouyangwen and Yi等 respectively get M ticket and N ticket (m>n). Now, please calculate how many Ouyangwen the number of votes in the recount process is always more than the number of yi等 votes. Input One row, including two numbers, M and N, respectively Output A number that r

) - { the for(r; r ) * { $ for(intj =1; J )Panax Notoginseng { -++Mp[r][j]; thek--; + } A } the } + Else if(r = =N) - { $ for(R > R)1 K; r--) $ { - for(intj =1; J ) - { the++Mp[r][j]; -k--;Wuyi } the } - } Wu } -

Similar to log cutting, the system has a logrotate program to complete the archive. But now we're going to write ourselves a shell script to implement the archive. Example: If the output of the service log is 1.log, I asked to file a daily, 1.log the next day to become 1.log.1, the third day 1.log.2, the fourth day 1.log.3 until 1.log.5.Here is a reference script for you to refer to:#!/bin/bashfunction e_df () {[-F $] rm-f $1}for i in ' seq 5-1 2 ' do i2=$[$i-1] e_df/data/1.log. $i if [-f/data/

This articleArticleGood finishing: http://blog.sina.com.cn/s/blog_8fa7dd41010153zx.html In addition, Poll/select have corresponding ppoll/pselect. The main reasons for existence are, The reason that pselect () is needed is that if one wants to wait for either a signal or for a file descriptor to becomeReady, then an atomic test is needed to prevent race conditions. (Suppose the signal handler sets a global flag andReturns. Then a test of this global

voting question two difficulty level: C; run time limit: 1000ms; operating space limit: 51200KB; code length limit: 2000000B Question Description /td> Ouyangwen and Yi等 campaign chairman, Wangliangsen is responsible for recount, a total of m+n, the result Ouyangwen win, known Ouyangwen and Yi等 respectively obtained m-ticket and N-ticket (m>n). Now, please calculate how many Ouyangwen the number of votes in the recount process is always more than

socketserver.ImportSockethost='localhost' #The remote hostPORT = 8001#The same port as used by the servers =Socket.socket (socket.af_inet, socket. Sock_stream) S.connect ((HOST, PORT)) whiletrue:msg= Bytes (Input (">>:"), encoding="UTF8") S.sendall (msg) Data= S.RECV (1024) #print (data) Print('Received', repr (data)) S.close ()ServerImportSYSImportSocketImport TimeImportgevent fromGeventImportSocket,monkeymonkey.patch_all ()defServer (port): s=socket.socket () S.bind ('0.0.0.0', Port)

Log pollingMethod 1Download Cronlog softwareCd/home/lvnian/toolswget http://down1.chinaunix.net/distfiles/cronolog-1.6.2.tar.gzTar XF cronolog-1.6.2.tar.gzCD cronolog-1.6.2./configureMake make installLl/usr/local/sbin/cronolog###### #3Cronlog System self-bringing mode. Change access log in httpd.conf or httpd.vhost.conf to the following content# # #按天轮询Customlog "|/usr/local/sbin/cronolog/application/apache/logs/www.access_%y%m%d.log" combined# #按周轮询# #CustomLog "|/usr/local/sbin/cronolog/appli

high Python SelectThe function that calls Select is R, W, E = select.select(rlist, wlist, xlist[, timeout]) , the first three parameters are three lists, the objects in the array are waitable object : Both the file descriptor of the whole number, or an object that has the method of returning the file descriptor (descriptor) fileno() ; rlist: Waiting for the list to be read ready wlist: Waiting for the list to be written ready errlist: Wait for the list of "exceptions"

555, I did a poll survey function. Help.

':'www.soushenji.com','Poster':'Shuxiayehu', ' Time': 1187280000,'votes': 421} redis.hmset ('article_100635', Article_desc)defarticle_note (conn, user, article): Cutoff= Time.time ()-One_week_in_secondsifConn.zscore ('Article_time', article) Cutoff:returnarticle_id= Article.partition ('_') [-1] ifConn.sadd ('Voted_'+article_id, user): Conn.zincrby ('Article_score', article, Vote_score) Conn.hincrby (article,'votes', 1) R= Redis. Strictredis (host='redis_server_ip', port=637

close FDDelete_event (Epollfd,fd,epollin);//Delete Listener } Else{printf ("Read message is:%s", BUF); //modifies the event corresponding to the descriptor, changed from read to writemodify_event (epollfd,fd,epollout); } }//Write ProcessingStatic voidDo_write (intEPOLLFD,intFdChar*buf) { intNwrite; Nwrite=Write (Fd,buf,strlen (BUF)); if(Nwrite = =-1) {perror ("Write Error:"); Close (FD); //remember the close FDDelete_event (epollfd,fd,epollout);//Delete Listener}Else{modify

Client:#define _gnu_source 1#include Server:#define _gnu_source 1#include Poll functions for multi-user chat under Linux

(' 10.3.151.86 ', 5672, '/', credentials)) Channel=connection.channel () Channel.queue _declare (queue= ' hello ') defcallback (ch,method,properties,body): #回调函数 time.sleep (NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP); #增加30秒等待 print ("[x]received%r" %body) ch.basic_ack (delivery_tag= Method.delivery_tag) #通知服务端已确认收到channel. Basic_consume ( callback,queue= ' Hello ',#no_ack=true #默认不写是指返回给服务器是否获取数据成功) print (' [*]waitingformessages . toexitpressctrl+c ') channel.start_consum

(); select_t sel; Select_init (sel, LISTENFD); Select_set_callback (sel, handler); while (1) { select_do_wait (sel); Select_handle_accept (sel); Select_handle_data (sel); } Close (LISTENFD); return 0;}2. Encapsulating the poll server model2.1 Package header File Poll_t.h#ifndef __poll_t_h__#define __poll_t_h__#include 2.2 Encapsulated function poll_t.c#include "poll_t.h" #include "network.h" void poll_add_fd