/**
* Gets a lock or waits for it to become available
* @param mixed $key Item to lock
* @param int $timeout Time to wait for the key (seconds)
* @param int $ttl TTL (seconds)
* @return Lock The key
* @throws LockException If the key is invalid
* @throws LockTimeoutException If the lock is not acquired before the method times out and $ex true
*/
public function get($key, $timeout = null, $ttl = null, $ex = false)
{
if (!$key) {
throw new LockException("Invalid Key");
}
/** @var RedisClient $redis */
$redis = $this->resource_factory->get($this->redis_name);
$end_time = time() + $timeout;
$key = $this->key($key);
do {
$expire = $this->expire_time($ttl);
if ($acquired = $redis->setnx($key, $expire)) {
$acquired = new Lock($key, $expire, $redis);
break;
}
if ($acquired = $this->recover($redis, $key)) {
break;
}
if ($timeout === 0) {
break;
}
usleep(self::USLEEP);
} while (!is_numeric($timeout) || time() < $end_time);
if (!$acquired && $ex) {
throw new LockTimeoutException("Timeout exceeded");
}
return $acquired;
}
function testOneInstance()
{
ResourceFactory::getInstance()->register('test1', function () {
return new \stdClass();
});
$this->assertSame(ResourceFactory::getInstance()->get('test1'), ResourceFactory::getInstance()->get('test1'));
}
/**
* @return \Redis
*/
private static function redis()
{
return \Splitice\ResourceFactory::getInstance()->get('redis');
}
function execute(array $arguments)
{
$redis = ResourceFactory::getInstance()->get('redis');
$default_ttl = isset($arguments[1]) ? (int) $arguments[1] : 6000;
$deleted = 0;
$index_key = RedisStorage::getIndexKey();
$set_cleanup = array($index_key);
$keys = array();
foreach ($redis->sMembers($index_key) as $k) {
$full_key = RedisStorage::PREFIX . $k;
$ttl = $redis->ttl($full_key);
if ($ttl == -1) {
if ($redis->exists($full_key)) {
$redis->expire($full_key, $default_ttl);
$ttl = $default_ttl;
} else {
$set_cleanup[] = $k;
continue;
}
} else {
if ($ttl == -2) {
$set_cleanup[] = $k;
continue;
}
}
if ($ttl <= 10) {
$redis->del($full_key);
$set_cleanup[] = $k;
$deleted++;
} else {
$keys[$k] = $ttl;
}
}
echo "{$deleted} keys deleted due to ttl expiry.\r\n";
if (count($set_cleanup) != 1) {
$ret = call_user_func_array(array($redis, 'sRem'), $set_cleanup);
if (!$ret) {
echo "FAILURE: Attempted to remove ", count($set_cleanup), " keys from tracking set due to non-existance / ttl-expire.\r\n";
} else {
echo count($set_cleanup), " keys removed from tracking set due to non-existance / ttl-expire.\r\n";
}
}
$count = $redis->scard($index_key);
//trim db
$targetSize = isset($arguments[0]) ? (int) $arguments[0] : 100000;
if ($count > $targetSize) {
$its = $count - $targetSize;
uasort($keys, array($this, 'cmp'));
foreach ($keys as $k => $v) {
$redis->del(RedisStorage::PREFIX . $k);
$redis->sRem($index_key, $k);
$deleted++;
unset($keys[$k]);
$its--;
if ($its <= 0) {
break;
}
}
echo "{$deleted} keys deleted to reduce the quantity.\r\n";
}
echo "total - {$deleted} keys deleted - ", count($keys), " remaining out of {$count} keys.\r\n";
}