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Merge branch 'master' into columnfamilies

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This commit is contained in:
Igor Canadi
2014-04-02 10:48:05 -07:00
parent ddbd1ece88 8c4a3bfa5b
commit 8555ce2dec
22 changed files with 511 additions and 101 deletions
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28
table/plain_table_reader.cc
View File

@@ -267,14 +267,14 @@ Status PlainTableReader::PopulateIndexRecordList(IndexRecordList* record_list,
void PlainTableReader::AllocateIndexAndBloom(int num_prefixes) {
index_.reset();
if (options_.prefix_extractor != nullptr) {
if (options_.prefix_extractor.get() != nullptr) {
uint32_t bloom_total_bits = num_prefixes * kBloomBitsPerKey;
if (bloom_total_bits > 0) {
bloom_.reset(new DynamicBloom(bloom_total_bits, options_.bloom_locality));
}
}
if (options_.prefix_extractor == nullptr || kHashTableRatio <= 0) {
if (options_.prefix_extractor.get() == nullptr || kHashTableRatio <= 0) {
// Fall back to pure binary search if the user fails to specify a prefix
// extractor.
index_size_ = 1;
@@ -366,7 +366,7 @@ void PlainTableReader::FillIndexes(
Status PlainTableReader::PopulateIndex() {
// options.prefix_extractor is requried for a hash-based look-up.
if (options_.prefix_extractor == nullptr && kHashTableRatio != 0) {
if (options_.prefix_extractor.get() == nullptr && kHashTableRatio != 0) {
return Status::NotSupported(
"PlainTable requires a prefix extractor enable prefix hash mode.");
}
@@ -488,7 +488,7 @@ Status PlainTableReader::GetOffset(const Slice& target, const Slice& prefix,
}
bool PlainTableReader::MatchBloom(uint32_t hash) const {
return bloom_ == nullptr || bloom_->MayContainHash(hash);
return bloom_.get() == nullptr || bloom_->MayContainHash(hash);
}
Slice PlainTableReader::GetPrefix(const ParsedInternalKey& target) const {
@@ -676,20 +676,14 @@ void PlainTableIterator::Seek(const Slice& target) {
}
Slice prefix_slice = table_->GetPrefix(target);
uint32_t prefix_hash;
uint32_t bloom_hash;
if (table_->IsTotalOrderMode()) {
// The total order mode, there is only one hash bucket 0. The bloom filter
// is checked against the whole user key.
prefix_hash = 0;
bloom_hash = GetSliceHash(table_->GetUserKey(target));
} else {
uint32_t prefix_hash = 0;
// Bloom filter is ignored in total-order mode.
if (!table_->IsTotalOrderMode()) {
prefix_hash = GetSliceHash(prefix_slice);
bloom_hash = prefix_hash;
}
if (!table_->MatchBloom(bloom_hash)) {
offset_ = next_offset_ = table_->data_end_offset_;
return;
if (!table_->MatchBloom(prefix_hash)) {
offset_ = next_offset_ = table_->data_end_offset_;
return;
}
}
bool prefix_match;
status_ = table_->GetOffset(target, prefix_slice, prefix_hash, prefix_match,

2
table/plain_table_reader.h
View File

@@ -247,7 +247,7 @@ class PlainTableReader: public TableReader {
}
bool IsTotalOrderMode() const {
return (options_.prefix_extractor == nullptr);
return (options_.prefix_extractor.get() == nullptr);
}
// No copying allowed