| 39 | } |
| 40 | |
| 41 | void VersionEdit::EncodeTo(std::string* dst) const { |
| 42 | if (has_comparator_) { |
| 43 | PutVarint32(dst, kComparator); |
| 44 | PutLengthPrefixedSlice(dst, comparator_); |
| 45 | } |
| 46 | if (has_log_number_) { |
| 47 | PutVarint32(dst, kLogNumber); |
| 48 | PutVarint64(dst, log_number_); |
| 49 | } |
| 50 | if (has_prev_log_number_) { |
| 51 | PutVarint32(dst, kPrevLogNumber); |
| 52 | PutVarint64(dst, prev_log_number_); |
| 53 | } |
| 54 | if (has_next_file_number_) { |
| 55 | PutVarint32(dst, kNextFileNumber); |
| 56 | PutVarint64(dst, next_file_number_); |
| 57 | } |
| 58 | if (has_last_sequence_) { |
| 59 | PutVarint32(dst, kLastSequence); |
| 60 | PutVarint64(dst, last_sequence_); |
| 61 | } |
| 62 | |
| 63 | for (size_t i = 0; i < compact_pointers_.size(); i++) { |
| 64 | PutVarint32(dst, kCompactPointer); |
| 65 | PutVarint32(dst, compact_pointers_[i].first); // level |
| 66 | PutLengthPrefixedSlice(dst, compact_pointers_[i].second.Encode()); |
| 67 | } |
| 68 | |
| 69 | for (DeletedFileSet::const_iterator iter = deleted_files_.begin(); |
| 70 | iter != deleted_files_.end(); |
| 71 | ++iter) { |
| 72 | PutVarint32(dst, kDeletedFile); |
| 73 | PutVarint32(dst, iter->first); // level |
| 74 | PutVarint64(dst, iter->second); // file number |
| 75 | } |
| 76 | |
| 77 | for (size_t i = 0; i < new_files_.size(); i++) { |
| 78 | const FileMetaData& f = new_files_[i].second; |
| 79 | PutVarint32(dst, kNewFile); |
| 80 | PutVarint32(dst, new_files_[i].first); // level |
| 81 | PutVarint64(dst, f.number); |
| 82 | PutVarint64(dst, f.file_size); |
| 83 | PutLengthPrefixedSlice(dst, f.smallest.Encode()); |
| 84 | PutLengthPrefixedSlice(dst, f.largest.Encode()); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | static bool GetInternalKey(Slice* input, InternalKey* dst) { |
| 89 | Slice str; |