Add WALHeader & WALFrameHeader

handle.go

@@ -2,7 +2,9 @@ package litestream
 
 import (
 	"context"
+	"encoding/hex"
 	"io"
+	"log"
 	"os"
 	"sort"
 	"syscall"
@@ -51,6 +53,9 @@ func (h *Handle) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.Rea
 
 // Write writes data at a given offset to the underlying file.
 func (h *Handle) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) (err error) {
+	log.Printf("write: name=%s offset=%d", h.f.Name(), req.Offset)
+	println(hex.Dump(req.Data))
+
 	resp.Size, err = h.f.WriteAt(req.Data, req.Offset)
 	return err
 }