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<?php |
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/** |
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* Cluster resources manager |
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* User: moyo |
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* Date: 27/10/2017 |
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* Time: 2:48 PM |
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*/ |
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namespace Carno\Cluster; |
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use Carno\Cluster\Chips\InitializeTips; |
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use Carno\Cluster\Classify\Classified; |
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use function Carno\Coroutine\all; |
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use Carno\Promise\Promise; |
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use Carno\Promise\Promised; |
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class Resources |
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{ |
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use InitializeTips; |
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/** |
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* @var Classified |
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*/ |
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private $classify = null; |
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/** |
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* @var bool |
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*/ |
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private $started = false; |
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/** |
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* @var array |
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*/ |
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private $paused = []; |
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/** |
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* @var array |
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*/ |
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private $loaded = []; |
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/** |
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* @var Promised[] |
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*/ |
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private $waits = []; |
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/** |
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* Resources constructor. |
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* @param Classified $classify |
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*/ |
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public function __construct(Classified $classify) |
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{ |
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$this->classify = $classify; |
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} |
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/** |
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* @return static |
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*/ |
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public function startup() : self |
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{ |
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$this->started = true; |
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while ($this->paused) { |
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$this->initialize(...array_shift($this->paused)); |
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} |
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return $this; |
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} |
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/** |
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* @param string $scene |
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* @param string $group |
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* @param string $server |
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* @param Managed $managed |
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*/ |
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public function initialize(string $scene, string $group, string $server, Managed $managed) : void |
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{ |
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if (!$this->started) { |
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$this->paused[] = func_get_args(); |
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return; |
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} |
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if (isset($this->loaded[$sk = $this->sk($group, $server)])) { |
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return; |
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} |
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$this->waits[$sk] = $wait = $this->classify->discovery($scene)->attach($group, $server, $managed); |
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$wait->then(function () use ($sk) { |
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unset($this->waits[$sk]); |
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}); |
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$this->loaded[$sk] = [$scene, $group, $server]; |
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$this->waiting($sk, $managed); |
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} |
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/** |
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* @return Promised |
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*/ |
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public function ready() : Promised |
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{ |
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return all(...array_values($this->waits)); |
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} |
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/** |
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* @param string $group |
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* @param string $server |
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* @return Promised |
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*/ |
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public function forget(string $group, string $server) : Promised |
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{ |
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if (is_null($gss = $this->loaded[$sk = $this->sk($group, $server)] ?? null)) { |
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return Promise::rejected(); |
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} |
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unset($this->loaded[$sk]); |
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return $this->classify->discovery(array_shift($gss))->detach(...$gss); |
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} |
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/** |
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* @return Promised |
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*/ |
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public function release() : Promised |
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{ |
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$pending = []; |
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foreach ($this->loaded as $sk => $gss) { |
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unset($this->loaded[$sk]); |
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$pending[] = $this->classify->discovery(array_shift($gss))->detach(...$gss); |
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} |
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return all(...$pending); |
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} |
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/** |
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* @param string $group |
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* @param string $server |
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* @return string |
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*/ |
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private function sk(string $group, string $server) : string |
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{ |
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return sprintf('%s:%s', $group ?: 'service', $server); |
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} |
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} |
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carno-php /
cluster
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.