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https://github.com/facebook/rocksdb.git
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commit
b7b031f428
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@ -97,9 +97,9 @@ Status PlainTableKeyEncoder::AppendKey(const Slice& key, WritableFile* file,
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Slice prefix =
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Slice prefix =
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prefix_extractor_->Transform(Slice(key.data(), user_key_size));
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prefix_extractor_->Transform(Slice(key.data(), user_key_size));
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if (key_count_for_prefix == 0 || prefix != pre_prefix_.GetKey() ||
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if (key_count_for_prefix_ == 0 || prefix != pre_prefix_.GetKey() ||
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key_count_for_prefix % index_sparseness_ == 0) {
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key_count_for_prefix_ % index_sparseness_ == 0) {
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key_count_for_prefix = 1;
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key_count_for_prefix_ = 1;
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pre_prefix_.SetKey(prefix);
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pre_prefix_.SetKey(prefix);
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size_bytes_pos += EncodeSize(kFullKey, user_key_size, size_bytes);
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size_bytes_pos += EncodeSize(kFullKey, user_key_size, size_bytes);
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Status s = file->Append(Slice(size_bytes, size_bytes_pos));
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Status s = file->Append(Slice(size_bytes, size_bytes_pos));
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@ -108,8 +108,8 @@ Status PlainTableKeyEncoder::AppendKey(const Slice& key, WritableFile* file,
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}
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}
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*offset += size_bytes_pos;
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*offset += size_bytes_pos;
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} else {
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} else {
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key_count_for_prefix++;
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key_count_for_prefix_++;
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if (key_count_for_prefix == 2) {
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if (key_count_for_prefix_ == 2) {
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// For second key within a prefix, need to encode prefix length
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// For second key within a prefix, need to encode prefix length
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size_bytes_pos +=
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size_bytes_pos +=
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EncodeSize(kPrefixFromPreviousKey, pre_prefix_.GetKey().size(),
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EncodeSize(kPrefixFromPreviousKey, pre_prefix_.GetKey().size(),
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@ -26,7 +26,7 @@ class PlainTableKeyEncoder {
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fixed_user_key_len_(user_key_len),
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fixed_user_key_len_(user_key_len),
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prefix_extractor_(prefix_extractor),
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prefix_extractor_(prefix_extractor),
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index_sparseness_((index_sparseness > 1) ? index_sparseness : 1),
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index_sparseness_((index_sparseness > 1) ? index_sparseness : 1),
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key_count_for_prefix(0) {}
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key_count_for_prefix_(0) {}
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// key: the key to write out, in the format of internal key.
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// key: the key to write out, in the format of internal key.
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// file: the output file to write out
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// file: the output file to write out
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// offset: offset in the file. Needs to be updated after appending bytes
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// offset: offset in the file. Needs to be updated after appending bytes
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@ -45,7 +45,7 @@ class PlainTableKeyEncoder {
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uint32_t fixed_user_key_len_;
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uint32_t fixed_user_key_len_;
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const SliceTransform* prefix_extractor_;
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const SliceTransform* prefix_extractor_;
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const size_t index_sparseness_;
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const size_t index_sparseness_;
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size_t key_count_for_prefix;
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size_t key_count_for_prefix_;
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IterKey pre_prefix_;
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IterKey pre_prefix_;
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};
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};
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