disk

type Budget struct {
	// contains filtered or unexported fields
}

type Options struct {
	TSDB Shrinker
	// TSDBDir and SpoolDir are measured separately; relative paths are under the budget directory.
	TSDBDir  string
	SpoolDir string
	// SpoolReserve is always counted as used, so nothing else can grow into it (host mode).
	SpoolReserve int64
	HighWater    float64
	LowWater     float64
}

type Report struct {
	Cap        int64
	Used       int64
	Spool      int64
	Reserved   int64
	TSDB       int64
	Other      int64
	Effective  int64
	TSDBTarget int64
	Freed      int64
	Pressure   bool
	Deficit    int64
}

type Shrinker interface {
	Size() int64
	Shrink(ctx context.Context, target int64) (int64, error)
	Relax() error
}