<?php

namespace NoccyLabs\Ipc\Sem;

use NoccyLabs\Ipc\Key\KeyInterface;


class Semaphore
{
    protected $resource;

    public function __construct(KeyInterface $key, int $max, $perm = 0660, $autorelease = 1)
    {
        $this->resource = sem_get($key->getKey(), $max, $perm, $autorelease);
    }

    public function destroy()
    {
        sem_remove($this->resource);
    }

    public function acquire(float $timeout = 0):bool
    {
        return sem_acquire($this->resource, true);
    }

    public function release():bool
    {
        return sem_release($this->resource);
    }
}