mirror of https://github.com/ledisdb/ledisdb.git
47 lines
861 B
Go
47 lines
861 B
Go
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package wal
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import (
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"errors"
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)
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const (
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InvalidLogID uint64 = 0
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)
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var (
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ErrLogNotFound = errors.New("log not found")
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ErrLessLogID = errors.New("log id is less")
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)
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type LogIDGenerator interface {
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// Force reset to id, if current id is larger than id, nothing reset
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Reset(id uint64) error
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// ID must be first at 1, and increased monotonously, 0 is invalid
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GenerateID() (uint64, error)
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Close() error
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}
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type Store interface {
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GetLog(id uint64, log *Log) error
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// Get the first log which ID is equal or larger than id
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SeekLog(id uint64, log *Log) error
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FirstID() (uint64, error)
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LastID() (uint64, error)
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// if log id is less than current last id, return error
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StoreLog(log *Log) error
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StoreLogs(logs []*Log) error
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// Delete logs [start, stop]
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DeleteRange(start, stop uint64) error
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// Clear all logs
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Clear() error
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Close() error
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}
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