mirror of
https://github.com/kaspanet/kaspad.git
synced 2025-03-30 15:08:33 +00:00
d14809694f
* [NOD-1223] Delete unused files/packages. * [NOD-1223] Move signal and limits to the os package. * [NOD-1223] Put database and dbaccess into the db package. * [NOD-1223] Fold the logs package into the logger package. * [NOD-1223] Rename domainmessage to appmessage. * [NOD-1223] Rename to/from DomainMessage to AppMessage. * [NOD-1223] Move appmessage to the app packge. * [NOD-1223] Move protocol to the app packge. * [NOD-1223] Move the network package to the infrastructure packge. * [NOD-1223] Rename cmd to executables. * [NOD-1223] Fix go.doc in the logger package.
31 lines
1.1 KiB
Go
31 lines
1.1 KiB
Go
package database
|
|
|
|
// Cursor iterates over database entries given some bucket.
|
|
type Cursor interface {
|
|
// Next moves the iterator to the next key/value pair. It returns whether the
|
|
// iterator is exhausted. Panics if the cursor is closed.
|
|
Next() bool
|
|
|
|
// First moves the iterator to the first key/value pair. It returns false if
|
|
// such a pair does not exist. Panics if the cursor is closed.
|
|
First() bool
|
|
|
|
// Seek moves the iterator to the first key/value pair whose key is greater
|
|
// than or equal to the given key. It returns ErrNotFound if such pair does not
|
|
// exist.
|
|
Seek(key *Key) error
|
|
|
|
// Key returns the key of the current key/value pair, or ErrNotFound if done.
|
|
// The caller should not modify the contents of the returned key, and
|
|
// its contents may change on the next call to Next.
|
|
Key() (*Key, error)
|
|
|
|
// Value returns the value of the current key/value pair, or ErrNotFound if done.
|
|
// The caller should not modify the contents of the returned slice, and its
|
|
// contents may change on the next call to Next.
|
|
Value() ([]byte, error)
|
|
|
|
// Close releases associated resources.
|
|
Close() error
|
|
}
|