function onPacket($serv, $data, $addr)
{
$req = unserialize($data);
//错误的请求
if (empty($req['cmd'])) {
return;
}
$ipAddress = $addr['address'];
//没有建立映射
if (empty($this->ipMap[$ipAddress])) {
//建立映射
if ($req['cmd'] == 'putInfo' and !empty($req['info'])) {
$nodeInfo = new NodeInfo();
$nodeInfo->setInfo($req['info']);
$nodeInfo->address = $ipAddress;
$nodeInfo->port = $addr['port'];
$this->ipMap[$ipAddress] = $nodeInfo;
$this->log("new node, address={$ipAddress}, version=" . $nodeInfo->version);
//存储hostname
$this->redis->sAdd(self::KEY_NODE_LIST, $nodeInfo->hostname);
} else {
$this->serv->sendto($addr['address'], $addr['port'], serialize(['cmd' => 'getInfo']));
//存储Socket用于强制升级
$this->redis->hSet(self::KEY_NODE_SOCKET, $addr['address'], $addr['port']);
}
} else {
$nodeInfo = $this->ipMap[$ipAddress];
call_user_func([$this, '_udp_' . $req['cmd']], $nodeInfo, $req);
}
}
<?php
header("content-type:text/html;charset=utf-8");
$redis = new redis();
$result = $redis->connect('127.0.0.1', 6379);
$mywatchkey = $redis->get("mywatchkey");
$rob_total = 10;
//抢购数量
if ($mywatchkey < $rob_total) {
$redis->watch("mywatchkey");
$redis->multi();
//设置延迟，方便测试效果。
sleep(5);
//插入抢购数据
$redis->hSet("mywatchlist", "user_id_" . mt_rand(1, 9999), time());
$redis->set("mywatchkey", $mywatchkey + 1);
$rob_result = $redis->exec();
if ($rob_result) {
$mywatchlist = $redis->hGetAll("mywatchlist");
echo "抢购成功！<br/>";
echo "剩余数量：" . ($rob_total - $mywatchkey - 1) . "<br/>";
echo "用户列表：<pre>";
} else {
echo "手气不好，再抢购！";
exit;
}
}
?>
