我有一个奇怪的问题,我似乎找不到解决办法或任何更接近我遇到的问题的东西。
事实是,我正在通过php在命令行上运行一个scoket脚本,它接受连接并从移动应用程序客户端以json格式读取数据,并发送适当的json响应。除了连接数量不超过256个外,一切都正常工作。 我想知道为什么会这样,以及如何解决?我已经尝试了很多天,但没有成功! 以下是脚本片段:
事实是,我正在通过php在命令行上运行一个scoket脚本,它接受连接并从移动应用程序客户端以json格式读取数据,并发送适当的json响应。除了连接数量不超过256个外,一切都正常工作。 我想知道为什么会这样,以及如何解决?我已经尝试了很多天,但没有成功! 以下是脚本片段:
<?php
date_default_timezone_set("UTC");
$server = stream_socket_server("tcp://192.168.1.77:25003", $errno, $errorMessage);
if (!$server) {
die("$errstr ($errno)");
}
echo "Server started..";
echo "\r\n";
$client_socks = array();
while (true) {
//prepare readable sockets
$read_socks = $client_socks;
$read_socks[] = $server;
//start reading and use a large timeout
if (!stream_select ($read_socks, $write, $except, 10000)) {
die('something went wrong while selecting');
}
//new client
if (in_array($server, $read_socks)) {
$new_client = stream_socket_accept($server);
if ($new_client) {
//print remote client information, ip and port number
echo 'Connection accepted from ' . stream_socket_get_name($new_client, true);
echo "\r\n";
$client_socks[] = $new_client;
echo "Now there are total ". count($client_socks) . " clients";
echo "\r\n";
}
// echo stream_socket_get_name($new_client, true);
//delete the server socket from the read sockets
unset($read_socks[array_search($server, $read_socks)]);
}
$data = '';
$res = '';
//message from existing client
foreach($read_socks as $sock) {
stream_set_timeout($sock, 1000);
while($resp = fread($sock, 25000)) {
$data .= $resp;
if (strpos($data, "\n") !== false) {
break;
}
}
$info = stream_get_meta_data($sock);
if ($info['timed_out']) {
unset($client_socks[array_search($sock, $client_socks)]);
@fclose($sock);
echo 'Connection timed out!';
continue;
}
$client = stream_socket_get_name($sock, true);
if (!$data) {
unset($client_socks[array_search($sock, $client_socks)]);
@fclose($sock);
echo "$client got disconnected";
echo "\r\n";
continue;
}
//send the message back to client
$decode = json_decode($data);
$encode = json_encode($res);
fwrite($sock,$encode."\n");
}
}
P.S.: 我所做的是对该主题进行广泛搜索,并阅读了像http://smallvoid.com/article/winnt-tcpip-max-limit.html和其他两打文章。
我有一个运行着这个东西+ wamp 2.5的windows 7,它运行php 5.5.12。