forked from gitea/gitea
59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
package themis
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import "github.com/pingcap/go-hbase"
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// LockRole is the role of lock
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type LockRole int
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func (l LockRole) String() string {
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if l == RolePrimary {
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return "primary"
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}
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return "secondary"
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}
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const (
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// RolePrimary means this row is primary
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RolePrimary LockRole = iota
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// RoleSecondary means this row is secondary
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RoleSecondary
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)
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type Lock interface {
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// SetCoordinate sets lock's coordinate
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SetCoordinate(c *hbase.ColumnCoordinate)
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// Coordinate returns the lock's coordinate
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Coordinate() *hbase.ColumnCoordinate
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// Timestamp returns startTs of the transction which owned this lock
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Timestamp() uint64
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// SetExpired sets the lock's expired status.
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SetExpired(b bool)
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// IsExpired returns if lock is expired.
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IsExpired() bool
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// Type returns the lock's type, Put or Delete
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Type() hbase.Type
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// Role returns LockRole, primary or secondary
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Role() LockRole
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// not used now
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Context() interface{}
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// valid only Role == Primary
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Secondaries() []Lock
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// Primary returns the primary lock of this lock
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Primary() Lock
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// Encode encodes the lock to byte slice
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Encode() []byte
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}
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type LockManager interface {
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// CleanLock if clean lock success, first return value is transction's commit
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// timestamp, otherwise, the second return value is transction's primary
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// lock.
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CleanLock(c *hbase.ColumnCoordinate, prewriteTs uint64) (uint64, Lock, error)
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// EraseLockAndData removes lock and data.
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EraseLockAndData(c *hbase.ColumnCoordinate, prewriteTs uint64) error
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// GetCommitTimestamp returns a committed transction's commit timestamp.
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GetCommitTimestamp(c *hbase.ColumnCoordinate, prewriteTs uint64) (uint64, error)
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// [startTs, endTs]
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IsLockExists(c *hbase.ColumnCoordinate, startTs, endTs uint64) (bool, error)
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}
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