support read

weed/mount/page_writer/page_chunk.go

@@ -0,0 +1,16 @@
+package page_writer
+
+import (
+	"io"
+)
+
+type SaveToStorageFunc func(reader io.Reader, offset int64, size int64, cleanupFn func())
+
+type PageChunk interface {
+	FreeResource()
+	WriteDataAt(src []byte, offset int64) (n int)
+	ReadDataAt(p []byte, off int64) (maxStop int64)
+	IsComplete() bool
+	WrittenSize() int64
+	SaveContent(saveFn SaveToStorageFunc)
+}