wal

type ChunkLoc struct {
	SegId       SegmentID
	BlockIndex  uint32
	ChunkOffset int64
	ChunkSize   uint32
}

type ChunkType = byte

type Options struct {
	// DirPath specifies the directory path where the WAL segment files will
	// be stored.
	DirPath string

	// SegmentSize specifies the maximum size of each segment file in bytes.
	SegmentSize int64

	// SegmentFileExt specifies the file extension of the segment files.
	// The file extension must start with a dot ".", default value is ".SEG".
	// It is used to identify the different types of files(i.e. segment files
	// and hint files) in the directory.
	SegmentFileExt string

	// Sync is whether to synchronize writes through os buffer cache and down
	// onto the actual disk. Sync is required for durability of a single write
	// operation, but also results in slower writes.
	//
	// If false, and the machine crashes, then some recent writes may be lost.
	// Note that if it's just the process crashes, then no write will be lost.
	//
	// In other words, Sync being false has the same semantics as a normal
	// write system call. Sync being true means write followed by fsync.
	Sync bool

	// BytesPerSync specifies the number of bytes to write before calling fsync.
	BytesPerSync uint32
}

type Reader struct {
	// contains filtered or unexported fields
}

type SegmentID = uint32

type WAL struct {
	// contains filtered or unexported fields
}