Jeremy Tregunna
0d923f3f1d
- Created state handlers for all replication states - Implemented transitions based on received data - Added a WAL entry applier with validation - Implemented connection/reconnection management - Implemented ACK/NACK tracking and verification
23 lines
1.1 KiB
Go
23 lines
1.1 KiB
Go
package wal
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// WALEntryObserver defines the interface for observing WAL operations.
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// Components that need to be notified of WAL events (such as replication systems)
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// can implement this interface and register with the WAL.
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type WALEntryObserver interface {
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// OnWALEntryWritten is called when a single entry is written to the WAL.
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// This method is called after the entry has been written to the WAL buffer
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// but before it may have been synced to disk.
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OnWALEntryWritten(entry *Entry)
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// OnWALBatchWritten is called when a batch of entries is written to the WAL.
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// The startSeq parameter is the sequence number of the first entry in the batch.
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// This method is called after all entries in the batch have been written to
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// the WAL buffer but before they may have been synced to disk.
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OnWALBatchWritten(startSeq uint64, entries []*Entry)
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// OnWALSync is called when the WAL is synced to disk.
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// The upToSeq parameter is the highest sequence number that has been synced.
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// This method is called after the fsync operation has completed successfully.
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OnWALSync(upToSeq uint64)
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}
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