619   uint64_t offset;  member
652   virtual Status Read(uint64_t offset, size_t n, Slice* result,
671       req.status = Read(req.offset, req.len, &req.result, req.scratch);  in MultiRead()
866   virtual void PrepareWrite(size_t offset, size_t len) {  in PrepareWrite()  argument
875         (offset + len + block_size - 1) / block_size;  in PrepareWrite()
926   virtual Status Write(uint64_t offset, const Slice& data) = 0;
931   virtual Status Read(uint64_t offset, size_t n, Slice* result,
1417   Status InvalidateCache(size_t offset, size_t length) override {  in InvalidateCache()  argument
1418     return target_->InvalidateCache(offset, length);  in InvalidateCache()
1420   Status PositionedRead(uint64_t offset, size_t n, Slice* result,  in PositionedRead()  argument
1422     return target_->PositionedRead(offset, n, result, scratch);  in PositionedRead()
1434   Status Read(uint64_t offset, size_t n, Slice* result,  in Read()  argument
1436     return target_->Read(offset, n, result, scratch);  in Read()
1441   Status Prefetch(uint64_t offset, size_t n) override {  in Prefetch()  argument
1442     return target_->Prefetch(offset, n);  in Prefetch()
1452   Status InvalidateCache(size_t offset, size_t length) override {  in InvalidateCache()  argument
1453     return target_->InvalidateCache(offset, length);  in InvalidateCache()
1465   Status PositionedAppend(const Slice& data, uint64_t offset) override {  in PositionedAppend()  argument
1466     return target_->PositionedAppend(data, offset);  in PositionedAppend()
1510   Status InvalidateCache(size_t offset, size_t length) override {  in InvalidateCache()  argument
1511     return target_->InvalidateCache(offset, length);  in InvalidateCache()
1514   Status RangeSync(uint64_t offset, uint64_t nbytes) override {  in RangeSync()  argument
1515     return target_->RangeSync(offset, nbytes);  in RangeSync()
1518   void PrepareWrite(size_t offset, size_t len) override {  in PrepareWrite()  argument
1519     target_->PrepareWrite(offset, len);  in PrepareWrite()
1522   Status Allocate(uint64_t offset, uint64_t len) override {  in Allocate()  argument
1523     return target_->Allocate(offset, len);  in Allocate()
1538   Status Write(uint64_t offset, const Slice& data) override {  in Write()  argument
1539     return target_->Write(offset, data);  in Write()
1541   Status Read(uint64_t offset, size_t n, Slice* result,  in Read()  argument
1543     return target_->Read(offset, n, result, scratch);  in Read()