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<?php
namespace JVelasco\CircuitBreaker\AvailabilityStrategy\Backoff;
use JVelasco\CircuitBreaker\AvailabilityStrategy\BackoffStrategy;
final class Exponential implements BackoffStrategy
{
public function waitTime(int $attempt, int $baseTime): int
if ($attempt === 1) {
return $baseTime;
}
return pow(2, $attempt-1) * $baseTime;
/**
* @return string that uniquely identify the strategy
*/
public function id(): string
return "exponential";
j-velasco /
php-circuit-breaker
