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<?php
namespace Laravel\Horizon\Console;
use Illuminate\Console\Command;
use Illuminate\Support\Str;
use Laravel\Horizon\Contracts\MasterSupervisorRepository;
use Laravel\Horizon\Contracts\ProcessRepository;
use Laravel\Horizon\Contracts\SupervisorRepository;
use Laravel\Horizon\MasterSupervisor;
use Laravel\Horizon\ProcessInspector;
class PurgeCommand extends Command
{
/**
* The name and signature of the console command.
*
* @var string
*/
protected $signature = 'horizon:purge';
/**
* The console command description.
*
* @var string
*/
protected $description = 'Terminate any rogue Horizon processes';
/**
* @var \Laravel\Horizon\Contracts\SupervisorRepository
*/
private $supervisors;
/**
* @var \Laravel\Horizon\Contracts\ProcessRepository
*/
private $processes;
/**
* @var \Laravel\Horizon\ProcessInspector
*/
private $inspector;
/**
* Create a new command instance.
*
* @param \Laravel\Horizon\Contracts\SupervisorRepository $supervisors
* @param \Laravel\Horizon\Contracts\ProcessRepository $processes
* @param \Laravel\Horizon\ProcessInspector $inspector
* @return void
*/
public function __construct(
SupervisorRepository $supervisors,
ProcessRepository $processes,
ProcessInspector $inspector
) {
parent::__construct();
$this->supervisors = $supervisors;
$this->processes = $processes;
$this->inspector = $inspector;
}
/**
* Execute the console command.
*
* @param \Laravel\Horizon\Contracts\MasterSupervisorRepository $masters
* @return void
*/
public function handle(MasterSupervisorRepository $masters)
{
foreach ($masters->names() as $master) {
if (Str::startsWith($master, MasterSupervisor::basename())) {
$this->purge($master);
}
}
}
/**
* Purge any orphan processes.
*
* @param string $master
* @return void
*/
public function purge($master)
{
$this->recordOrphans($master);
$expired = $this->processes->orphanedFor(
$master, $this->supervisors->longestActiveTimeout()
);
collect($expired)->each(function ($processId) use ($master) {
$this->comment("Killing Process: {$processId}");
exec("kill {$processId}");
$this->processes->forgetOrphans($master, [$processId]);
});
}
/**
* Record the orphaned Horizon processes.
*
* @param string $master
* @return void
*/
protected function recordOrphans($master)
{
$this->processes->orphaned(
$master, $orphans = $this->inspector->orphaned()
);
foreach ($orphans as $processId) {
$this->info("Observed Orphan: {$processId}");
if (! posix_kill($processId, SIGTERM)) {
$this->error("Failed to kill process for Orphan: {$processId} (".posix_strerror(posix_get_last_error()).')');
}
}
}
}