PHP Stream Learning Note one (synchronous blocking IO model)

Original http://blog.csdn.net/shagoo/article/details/6396089[[email protected] PHP]#VI server_one.php<?PHPSet_time_limit(0);classSocketserver {Private Static $socket;  Public function__construct ($port)     {        Global $errno,$errstr; if($port< 1024) {             die("Port must be a number which bigger than 1024/n"); }                $socket=Stream_socket_server("tcp://0.0.0.0:{$port}",$errno,$errstr); if(!$socket) die("$errstr($errno)"); //Stream_set_timeout ($socket,-1);//Ensure that the server socket does not time out, it seems useless:)         while($conn=stream_socket_accept($socket,-1)) {//This setting does not time out before the oil is agreed with a connection and returns the other socket socket            Static $id= 0; Static $ct= 0; $ct _last=$ct; $ct _data= ' '; $buffer= ' '; $id++;//increase on each accept            EchoThe Client$idcome./n ";  while(!Preg_match('/(\/R)? \/n/',$buffer)) {//do not read to Terminator, continue to read//if (feof ($conn)) break;//Prevent Popen and fread bugs from causing a dead loop                $buffer=fread($conn, 1024); Echo' R '.Php_eol;//number of print reads                $ct+=strlen($buffer); $ct _data.=Preg_replace('/\/r?\/n/', ',$buffer); }            $ct _size= ($ct-$ct _last) * 8; Echo"[$id] " .__method__. ">".$ct _data. "/n".Php_eol; fwrite($conn, "Received I am the server I just received the data you sent to the size of$ct _sizeByte data "." /r/n "); Echo' The one who's connected to me, I wrote you a reply. '; fclose($conn); }                fclose($socket); }}$a=NewSocketserver (2000); [[email protected] PHP] #php server_one.php[[email protected] php]#VI client_one.php<?PHPfunctionDebug ($msg)  {      Echo $msg; Error_log($msg." \ r \ n ", 3, '/tmp/tmp_socket.log '); }if($argv[1]){    $socket _client=stream_socket_client(' tcp://0.0.0.0:2000 ',$errno,$errstr, 30); stream_set_blocking($socket _client, 0);//If the mode is 0, the given stream will turn to non-blocking mode 1 blocking mode    Stream_set_timeout($socket _client, 0, 100000);//The second argument is whether the time-out of the second parameter sets the third parameter the number of seconds default microseconds    if(!$socket _client) {         die("$errstr($errno)"); } Else {        $msg=Trim($argv[1]);  for($i= 0;$i< 10;$i++) {            $res=fwrite($socket _client, "$msg($i)"); Usleep(100000);//A delay of 1 microseconds (micro second) with a specified number of microseconds is one out of 10,000 seconds.             Echo' W ';//number of print writes//debug (fread ($socket _client, 1024));//will generate a deadlock because fread will wait for the data to be read in blocking mode        }        fwrite($socket _client, "/r/n");//transfer Terminator       Sleep(2);//Note that you don't sleep for 2 seconds, don't write logs .Debugfread($socket _client, 10024)); fclose($socket _client); }} Open three clients repeat the following command when the server response results only provide one person's response service [[email protected] PHP]#telnet 127.0.0.1CRTL +]telnet>Direct return123234abc

PHP Stream Learning Note one (synchronous blocking IO model)