1 // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. 2 // This source code is licensed under both the GPLv2 (found in the 3 // COPYING file in the root directory) and Apache 2.0 License 4 // (found in the LICENSE.Apache file in the root directory). 5 6 #pragma once 7 8 #include <cstdint> 9 #include <iosfwd> 10 #include <string> 11 12 #include "db/blob/blob_constants.h" 13 #include "rocksdb/rocksdb_namespace.h" 14 15 namespace ROCKSDB_NAMESPACE { 16 17 class JSONWriter; 18 class Slice; 19 class Status; 20 21 class BlobFileGarbage { 22 public: 23 BlobFileGarbage() = default; 24 BlobFileGarbage(uint64_t blob_file_number,uint64_t garbage_blob_count,uint64_t garbage_blob_bytes)25 BlobFileGarbage(uint64_t blob_file_number, uint64_t garbage_blob_count, 26 uint64_t garbage_blob_bytes) 27 : blob_file_number_(blob_file_number), 28 garbage_blob_count_(garbage_blob_count), 29 garbage_blob_bytes_(garbage_blob_bytes) {} 30 GetBlobFileNumber()31 uint64_t GetBlobFileNumber() const { return blob_file_number_; } GetGarbageBlobCount()32 uint64_t GetGarbageBlobCount() const { return garbage_blob_count_; } GetGarbageBlobBytes()33 uint64_t GetGarbageBlobBytes() const { return garbage_blob_bytes_; } 34 35 void EncodeTo(std::string* output) const; 36 Status DecodeFrom(Slice* input); 37 38 std::string DebugString() const; 39 std::string DebugJSON() const; 40 41 private: 42 enum CustomFieldTags : uint32_t; 43 44 uint64_t blob_file_number_ = kInvalidBlobFileNumber; 45 uint64_t garbage_blob_count_ = 0; 46 uint64_t garbage_blob_bytes_ = 0; 47 }; 48 49 bool operator==(const BlobFileGarbage& lhs, const BlobFileGarbage& rhs); 50 bool operator!=(const BlobFileGarbage& lhs, const BlobFileGarbage& rhs); 51 52 std::ostream& operator<<(std::ostream& os, 53 const BlobFileGarbage& blob_file_garbage); 54 JSONWriter& operator<<(JSONWriter& jw, 55 const BlobFileGarbage& blob_file_garbage); 56 57 } // namespace ROCKSDB_NAMESPACE 58