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<?php |
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/** |
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* Service registry |
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* User: moyo |
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* Date: 27/12/2017 |
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* Time: 6:02 PM |
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*/ |
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namespace Carno\HRPC\Plugins; |
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use Carno\Console\Boot\Waited; |
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use Carno\Container\DI; |
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use Carno\HRPC\Serviced\Registry as ServiceRG; |
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use Carno\Net\Address; |
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use Carno\Net\Contracts\Conn; |
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use Carno\Net\Events; |
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use Carno\Process\Piping; |
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use Carno\Process\Program; |
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use Carno\Promise\Promised; |
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use Carno\Serving\Contracts\Plugins; |
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class Registry extends Program implements Plugins |
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{ |
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/** |
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* @var string |
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*/ |
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protected $name = 'service.registry'; |
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/** |
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* @var ServiceRG |
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*/ |
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private $registry = null; |
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/** |
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* @var Address |
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*/ |
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private $advertise = null; |
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/** |
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* @var int |
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*/ |
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private $waiting = 1; |
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/** |
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* @var int |
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*/ |
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private $ready = 0; |
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/** |
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* @var int |
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*/ |
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private $waits = null; |
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/** |
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* ServiceRegistry constructor. |
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* @param Address $advertise |
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* @param int $waits |
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*/ |
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public function __construct(Address $advertise, int $waits = 1) |
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{ |
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$this->advertise = $advertise; |
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$this->waits = $waits; |
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} |
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/** |
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* @return bool |
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*/ |
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public function enabled() : bool |
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{ |
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return DI::has(ServiceRG::class) ? !! $this->registry = DI::get(ServiceRG::class) : false; |
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} |
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/** |
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* @param Events $events |
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*/ |
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public function hooking(Events $events) : void |
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{ |
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$forked = $this->fork(); |
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$forked->waiting($this->waits); |
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$events |
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->attach(Events\Server::CREATED, static function (Conn $serv) use ($forked) { |
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$forked->startup($serv->server()->raw()); |
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}) |
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->attach(Events\Server::STARTUP, static function (Conn $serv) use ($forked) { |
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$forked->porting($serv->local()->port()); |
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}) |
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->attach(Events\Server::SHUTDOWN, static function () use ($forked) { |
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$forked->shutdown(); |
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}) |
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->attach(Events\Worker::STARTED, static function (Conn $serv) use ($forked) { |
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$startup = $serv->ctx()->get('WG:STARTING'); |
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if ($startup instanceof Waited) { |
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$startup->done()->then(function () use ($serv, $forked) { |
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$forked->ready($serv->worker()); |
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}); |
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} else { |
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trigger_error('No WG:STARTING in serv context', E_USER_WARNING); |
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} |
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}); |
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} |
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/** |
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* @param int $listen |
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*/ |
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public function porting(int $listen) : void |
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{ |
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if ($this->advertise->port() !== $listen) { |
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$this->advertise = new Address($this->advertise->host(), $listen); |
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} |
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} |
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/** |
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* @param int $all |
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*/ |
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public function waiting(int $all) : void |
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{ |
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$this->waiting = $all; |
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} |
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/** |
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* @param int $wid |
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*/ |
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public function ready(int $wid) : void |
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{ |
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$this->ready ++; |
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$this->starting(); |
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} |
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/** |
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* @param Piping $piping |
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*/ |
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protected function forking(Piping $piping) : void |
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{ |
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// do nothing |
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} |
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/** |
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140
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* server register |
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*/ |
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protected function starting() : void |
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{ |
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if ($this->ready === $this->waiting) { |
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$this->registry->register($this->advertise); |
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} |
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} |
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/** |
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150
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* service deregister |
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* @param Promised $wait |
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*/ |
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protected function stopping(Promised $wait) : void |
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{ |
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$this->registry->deregister()->sync($wait); |
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} |
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} |
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carno-php /
hrpc
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