用PHP写的基于Memcache的Queue实现代码
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PHP类代码:
<div class="codetitle"><a style="CURSOR: pointer" data="31644" class="copybut" id="copybut31644" onclick="doCopy('code31644')"> 代码如下:
<div class="codebody" id="code31644">
<?
PHP class MQ{
public static $client;
private static $m_real;
private static $m_front;
private static $m_data = array();
const QUEUE_MAX_NUM = 100000000;
const QUEUE_FRONT_KEY = '_queue_item_front';
const QUEUE_REAL_KEY = '_queue_item_real';
public static function setupMq($conf) {
self::$client = memcache_pconnect($conf);
self::$m_real = memcache_get(self::$client,self::QUEUE_REAL_KEY);
self::$m_front = memcache_get(self::$client,self::QUEUE_FRONT_KEY);
if (!isset(self::$m_real) || emptyempty(self::$m_real)) {
self::$real= 0;
}
if (!isset(self::$m_front) || emptyempty(self::$m_front)) {
self::$m_front = 0;
}
return self::$client;
}
public static function add($queue,$data) {
$result = false;
if (self::$m_real < self::QUEUE_MAX_NUM) {
if (memcache_add(self::$client,$queue.self::$m_real,$data)) {
self::mqRealChange();
$result = true;
}
}
return $result;
}
public static function get($key,$count) {
$num = 0;
for ($i=self::$m_front;$i<self::$m_front + $count;$i++) {
if ($dataTmp = memcache_get(self::$client,$key.$i)) {
self::$m_data[] = $dataTmp;
memcache_delete(self::$client,$key.$i);
$num++;
}
}
if ($num>0) {
self::mqFrontChange($num);
}
return self::$m_data;
}
private static function mqRealChange() {
memcache_add(self::$client,self::QUEUE_REAL_KEY,0);
self::$m_real = memcache_increment(self::$client,1);
}
private static function mqFrontChange($num) {
memcache_add(self::$client,self::QUEUE_FRONT_KEY,0);
self::$m_front = memcache_increment(self::$client,$num);
}
public static function mflush($memcache_obj) {
memcache_flush($memcache_obj);
}
public static function Debug() {
echo 'real:'.self::$m_real."
/r/n";
echo 'front:'.self::$m_front."
/r/n";
echo 'wait for process data:'.intval(self::$m_real - self::$m_front);
echo "
/r/n";
echo '
';
print_r(self::$m_data);
echo '';
}
}
define('FLUSH_MQ',0);//CLEAN ALL DATA
define('IS_ADD',0);//SET DATA
$mobj = MQ::setupMq('127.0.0.1','11211');
if (FLUSH_MQ) {
MQ::mflush($mobj);
} else {
if (IS_ADD) {
MQ::add('user_sync','1test');
MQ::add('user_sync','2test');
MQ::add('user_sync','3test');
MQ::add('user_sync','4test');
MQ::add('user_sync','5test');
MQ::add('user_sync','6test');
} else {
MQ::get('user_sync',10);
}
}
MQ::Debug();
?>
