pool

type Config[PT item[T], T any] struct {
	Logger logger.Logger

	// CreateFunc is used to create pool item.
	// Timeout is not set as context.WithTimeout
	// because this is running context for long-lived item.
	// Timeout itself should limit only creation steps,
	// and it is responsibility of CreateFunc to handle it appropriately.
	CreateFunc func(ctx context.Context, createTimeout time.Duration) (PT, error)

	// CreateTimeout limits runtime for CreateFunc.
	// This timeout cannot be less than a second (minCreateTimeout).
	// Default is 3 seconds (defaultCreateTimeout).
	CreateTimeout time.Duration

	// Lifetime specifies item lifetime after which it will be closed
	// and new item will be created instead.
	// 0 lifetime means item has infinite lifetime and item recycling
	// is not running.
	// Lifetime cannot be greater than 0 and less than 5 seconds (minItemLifetime).
	Lifetime time.Duration

	// RecycleWindow specifies time interval for item recycling:
	// [Lifetime-RecycleWindow;Lifetime+RecycleWindow]
	// This prevents items to all be recycled in the same time.
	RecycleWindow time.Duration

	// PoolSize specifies amount of items in pool.
	PoolSize uint
}

type Pool[PT item[T], T any] struct {
	// contains filtered or unexported fields
}