Interface Cache

pkg/cache/interface.go:6–18

Cache describes a cache of files.

// Cache describes a cache of files.
type Cache interface {
	// Size gets the size of the file.
	Size(path string) (int64, bool)

	// PutSize sets size of the file.
	PutSize(path string, length int64) bool

	// Exists checks if the given chunk of the file is already cached.
	Exists(name string, offset int64) bool

	// GetOrCreate gets the cached value if available, otherwise downloads the file.
	GetOrCreate(name string, offset int64, count int, fetch func() ([]byte, error)) ([]byte, error)
}

var (
	// FilesCacheMaxCost is the capacity of the files cache.