wp

storage/wal_writer.go

@@ -53,7 +53,8 @@ type MetricsState struct {
 }
 
 type Changes struct {
-	Records               []any
+	Commits []any
+	// for snapshot only
 	SnapshotNumberCh      chan int // log number
 	FrozenIndexPagesCount int
 	IndexPageNumbers      []uint32
@@ -62,13 +63,12 @@ type Changes struct {
 }
 
 type Writer struct {
-	mutex           sync.Mutex
-	dataPagesCount  uint32
-	indexPagesCount uint32
-	dataFreeList    *freelist.FreeList
-	indexFreeList   *freelist.FreeList
-	atree           *atree.Atree
-	//logNumber           int
+	mutex               sync.Mutex
+	dataPagesCount      uint32
+	indexPagesCount     uint32
+	dataFreeList        *freelist.FreeList
+	indexFreeList       *freelist.FreeList
+	atree               *atree.Atree
 	dir                 string
 	w                   *bytes.Buffer // wal буфер для упаковки даних перед записом на диск
 	wal                 *os.File
@@ -79,12 +79,11 @@ type Writer struct {
 	input               []any
 	dataPreparer        *WritePreparer
 	appendToWorkerQueue func(any)
-	//lsn                 uint32
-	written   int64
-	isExited  bool
-	exitCh    chan struct{}
-	waitGroup *sync.WaitGroup
-	signalCh  chan struct{}
+	written             int64
+	isExited            bool
+	exitCh              chan struct{}
+	waitGroup           *sync.WaitGroup
+	signalCh            chan struct{}
 }
 
 type WriterOptions struct {
@@ -259,7 +258,7 @@ func (s *Writer) packAndWrite() (err error) {
 		snapshotNumberCh := make(chan int, 1)
 
 		s.appendToWorkerQueue(Changes{
-			Records:               prepared.Commits,
+			Commits:               prepared.Commits,
 			SnapshotNumberCh:      snapshotNumberCh,
 			FrozenIndexPagesCount: s.indexFreeList.Pages(),
 			IndexPageNumbers:      s.indexFreeList.Cached(),
@@ -290,7 +289,7 @@ func (s *Writer) packAndWrite() (err error) {
 		}
 	} else {
 		s.appendToWorkerQueue(Changes{
-			Records: prepared.Commits,
+			Commits: prepared.Commits,
 		})
 	}
 	return nil