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https://github.com/featurebasedb/featurebase.git
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503e5c95be
This commit moves ID-related types and functions to the top level package and moves remaining statsd wrapper into a `statsd` package.
49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
package pilosa
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// Storage represents
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type Storage interface {
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Open() error
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Close() error
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Flush()
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Fetch(bitmap_id uint64, db, frame string, slice int) (*Bitmap, uint64)
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Store(id uint64, db, frame string, slice int, filter uint64, bitmap *Bitmap) error
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StoreBlock(id uint64, db, frame string, slice int, filter uint64, chunk uint64, block_index int32, block uint64) error
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RemoveBlock(id uint64, db, frame string, slice int, chunk uint64, block_index int32)
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StoreBit(bid uint64, db, frame string, slice int, filter uint64, chunk uint64, block_index int32, block, count uint64)
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RemoveBit(id uint64, db, frame string, slice int, filter uint64, chunk uint64, block_index int32, count uint64)
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}
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var storageFns = make(map[string]NewStorageFunc)
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// NewStorageFunc represents a function that instantiates a new storage engine.
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type NewStorageFunc func(opt StorageOptions) Storage
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// RegisterStorage registers a storage engine.
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func RegisterStorage(name string, fn NewStorageFunc) {
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if storageFns[name] != nil {
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panic("storage engine already registered: " + name)
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}
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storageFns[name] = fn
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}
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// NewStorage returns a new Storage instance by name.
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func NewStorage(name string, opt StorageOptions) Storage {
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fn := storageFns[name]
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if fn == nil {
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panic("storage type not registered: " + name)
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}
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return fn(opt)
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}
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// StorageOptions represents the options passed to the storage engine.
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type StorageOptions struct {
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DB string
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Slice int
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Frame string
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FragmentID SUUID
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LevelDBPath string
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}
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