87 lines
2.2 KiB
PHP
87 lines
2.2 KiB
PHP
<?php
|
|
|
|
namespace danog\MadelineProto\Db;
|
|
|
|
use Amp\Producer;
|
|
use Amp\Promise;
|
|
use Amp\Success;
|
|
use danog\MadelineProto\Logger;
|
|
use danog\MadelineProto\Settings\Database\Memory;
|
|
|
|
use function Amp\call;
|
|
|
|
/**
|
|
* Memory database backend.
|
|
*/
|
|
class MemoryArray extends \ArrayIterator implements DbArray
|
|
{
|
|
protected function __construct($array = [], $flags = 0)
|
|
{
|
|
parent::__construct((array) $array, $flags | self::STD_PROP_LIST);
|
|
}
|
|
|
|
/**
|
|
* Get instance.
|
|
*
|
|
* @param string $table
|
|
* @param mixed $previous
|
|
* @param Memory $settings
|
|
* @return Promise<self>
|
|
*/
|
|
public static function getInstance(string $table, $previous, $settings): Promise
|
|
{
|
|
return call(static function () use ($previous) {
|
|
if ($previous instanceof MemoryArray) {
|
|
return $previous;
|
|
}
|
|
if ($previous instanceof DbArray) {
|
|
Logger::log("Loading database to memory. Please wait.", Logger::WARNING);
|
|
if ($previous instanceof DriverArray) {
|
|
yield from $previous->initStartup();
|
|
}
|
|
$previous = yield $previous->getArrayCopy();
|
|
}
|
|
return new static($previous);
|
|
});
|
|
}
|
|
|
|
public function offsetExists($offset)
|
|
{
|
|
throw new \RuntimeException('Native isset not support promises. Use isset method');
|
|
}
|
|
|
|
public function isset($key): Promise
|
|
{
|
|
return new Success(parent::offsetExists($key));
|
|
}
|
|
|
|
public function offsetGet($offset): Promise
|
|
{
|
|
return new Success(parent::offsetExists($offset) ? parent::offsetGet($offset) : null);
|
|
}
|
|
|
|
public function offsetUnset($offset): Promise
|
|
{
|
|
return new Success(parent::offsetUnset($offset));
|
|
}
|
|
|
|
public function count(): Promise
|
|
{
|
|
return new Success(parent::count());
|
|
}
|
|
|
|
public function getArrayCopy(): Promise
|
|
{
|
|
return new Success(parent::getArrayCopy());
|
|
}
|
|
|
|
public function getIterator(): Producer
|
|
{
|
|
return new Producer(function (callable $emit) {
|
|
foreach ($this as $key => $value) {
|
|
yield $emit([$key, $value]);
|
|
}
|
|
});
|
|
}
|
|
}
|