Change ioptions to store user_comparator, fix bug

Summary:
change ioptions.comparator to user_comparator instread of internal_comparator.
Also change Comparator* to InternalKeyComparator* to make its type explicitly.

Test Plan: make all check -j64

Reviewers: andrewkr, sdong, yiwu

Reviewed By: yiwu

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D65121

db/column_family.cc

@@ -139,10 +139,8 @@ Status CheckConcurrentWritesSupported(const ColumnFamilyOptions& cf_options) {
 }
 
 ColumnFamilyOptions SanitizeOptions(const ImmutableDBOptions& db_options,
-                                    const InternalKeyComparator* icmp,
                                     const ColumnFamilyOptions& src) {
   ColumnFamilyOptions result = src;
-  result.comparator = icmp;
   size_t clamp_max = std::conditional<
       sizeof(size_t) == 4, std::integral_constant<size_t, 0xffffffff>,
       std::integral_constant<uint64_t, 64ull << 30>>::type::value;
@@ -349,8 +347,7 @@ ColumnFamilyData::ColumnFamilyData(
       refs_(0),
       dropped_(false),
       internal_comparator_(cf_options.comparator),
-      initial_cf_options_(
-          SanitizeOptions(db_options, &internal_comparator_, cf_options)),
+      initial_cf_options_(SanitizeOptions(db_options, cf_options)),
       ioptions_(db_options, initial_cf_options_),
       mutable_cf_options_(initial_cf_options_),
       write_buffer_manager_(write_buffer_manager),

db/column_family.h

@@ -137,7 +137,6 @@ extern Status CheckConcurrentWritesSupported(
     const ColumnFamilyOptions& cf_options);
 
 extern ColumnFamilyOptions SanitizeOptions(const ImmutableDBOptions& db_options,
-                                           const InternalKeyComparator* icmp,
                                            const ColumnFamilyOptions& src);
 // Wrap user defined table proproties collector factories `from cf_options`
 // into internal ones in int_tbl_prop_collector_factories. Add a system internal

db/column_family_test.cc

@@ -2182,8 +2182,8 @@ TEST_F(ColumnFamilyTest, SanitizeOptions) {
             original.write_buffer_size =
                 l * 4 * 1024 * 1024 + i * 1024 * 1024 + j * 1024 + k;
 
-            ColumnFamilyOptions result = SanitizeOptions(
-                ImmutableDBOptions(db_options), nullptr, original);
+            ColumnFamilyOptions result =
+                SanitizeOptions(ImmutableDBOptions(db_options), original);
             ASSERT_TRUE(result.level0_stop_writes_trigger >=
                         result.level0_slowdown_writes_trigger);
             ASSERT_TRUE(result.level0_slowdown_writes_trigger >=

db/db_impl.cc

@@ -122,12 +122,11 @@ struct DBImpl::WriteContext {
 };
 
 Options SanitizeOptions(const std::string& dbname,
-                        const InternalKeyComparator* icmp,
                         const Options& src) {
   auto db_options = SanitizeOptions(dbname, DBOptions(src));
   ImmutableDBOptions immutable_db_options(db_options);
   auto cf_options =
-      SanitizeOptions(immutable_db_options, icmp, ColumnFamilyOptions(src));
+      SanitizeOptions(immutable_db_options, ColumnFamilyOptions(src));
   return Options(db_options, cf_options);
 }
 

db/db_impl.h

@@ -1089,7 +1089,6 @@ class DBImpl : public DB {
 };
 
 extern Options SanitizeOptions(const std::string& db,
-                               const InternalKeyComparator* icmp,
                                const Options& src);
 
 extern DBOptions SanitizeOptions(const std::string& db, const DBOptions& src);

db/db_options_test.cc

@@ -64,7 +64,7 @@ class DBOptionsTest : public DBTestBase {
     Options options;
     ImmutableDBOptions db_options(options);
     test::RandomInitCFOptions(&options, rnd);
-    auto sanitized_options = SanitizeOptions(db_options, nullptr, options);
+    auto sanitized_options = SanitizeOptions(db_options, options);
     auto opt_map = GetMutableCFOptionsMap(sanitized_options);
     delete options.compaction_filter;
     return opt_map;

db/table_properties_collector_test.cc

@@ -391,7 +391,6 @@ void TestInternalKeyPropertiesCollector(
     // SanitizeOptions().
     options.info_log = std::make_shared<test::NullLogger>();
     options = SanitizeOptions("db",            // just a place holder
-                              &pikc,
                               options);
     ImmutableCFOptions ioptions(options);
     GetIntTblPropCollectorFactory(ioptions, &int_tbl_prop_collector_factories);

table/block_based_table_builder.cc

@@ -74,7 +74,7 @@ class IndexBuilder {
     Slice index_block_contents;
     std::unordered_map<std::string, Slice> meta_blocks;
   };
-  explicit IndexBuilder(const Comparator* comparator)
+  explicit IndexBuilder(const InternalKeyComparator* comparator)
       : comparator_(comparator) {}
 
   virtual ~IndexBuilder() {}
@@ -107,7 +107,7 @@ class IndexBuilder {
   virtual size_t EstimatedSize() const = 0;
 
  protected:
-  const Comparator* comparator_;
+  const InternalKeyComparator* comparator_;
 };
 
 // This index builder builds space-efficient index block.
@@ -121,7 +121,7 @@ class IndexBuilder {
 //     substitute key that serves the same function.
 class ShortenedIndexBuilder : public IndexBuilder {
  public:
-  explicit ShortenedIndexBuilder(const Comparator* comparator,
+  explicit ShortenedIndexBuilder(const InternalKeyComparator* comparator,
                                  int index_block_restart_interval)
       : IndexBuilder(comparator),
         index_block_builder_(index_block_restart_interval) {}
@@ -180,7 +180,7 @@ class ShortenedIndexBuilder : public IndexBuilder {
 // data copy or small heap allocations for prefixes.
 class HashIndexBuilder : public IndexBuilder {
  public:
-  explicit HashIndexBuilder(const Comparator* comparator,
+  explicit HashIndexBuilder(const InternalKeyComparator* comparator,
                             const SliceTransform* hash_key_extractor,
                             int index_block_restart_interval)
       : IndexBuilder(comparator),
@@ -269,7 +269,8 @@ class HashIndexBuilder : public IndexBuilder {
 namespace {
 
 // Create a index builder based on its type.
-IndexBuilder* CreateIndexBuilder(IndexType type, const Comparator* comparator,
+IndexBuilder* CreateIndexBuilder(IndexType type,
+                                 const InternalKeyComparator* comparator,
                                  const SliceTransform* prefix_extractor,
                                  int index_block_restart_interval) {
   switch (type) {
@@ -893,8 +894,8 @@ Status BlockBasedTableBuilder::Finish() {
           r->table_options.filter_policy->Name() : "";
       r->props.index_size =
           r->index_builder->EstimatedSize() + kBlockTrailerSize;
-      r->props.comparator_name = r->ioptions.comparator != nullptr
-                                     ? r->ioptions.comparator->Name()
+      r->props.comparator_name = r->ioptions.user_comparator != nullptr
+                                     ? r->ioptions.user_comparator->Name()
                                      : "nullptr";
       r->props.merge_operator_name = r->ioptions.merge_operator != nullptr
                                          ? r->ioptions.merge_operator->Name()

table/table_reader_bench.cc

@@ -168,10 +168,10 @@ void TableReaderBenchmark(Options& opts, EnvOptions& env_options,
           if (!through_db) {
             std::string value;
             MergeContext merge_context;
-            GetContext get_context(ioptions.comparator, ioptions.merge_operator,
-                                   ioptions.info_log, ioptions.statistics,
-                                   GetContext::kNotFound, Slice(key), &value,
-                                   nullptr, &merge_context, env);
+            GetContext get_context(
+                ioptions.user_comparator, ioptions.merge_operator,
+                ioptions.info_log, ioptions.statistics, GetContext::kNotFound,
+                Slice(key), &value, nullptr, &merge_context, env);
             s = table_reader->Get(read_options, key, &get_context);
           } else {
             s = db->Get(read_options, key, &result);

util/cf_options.cc

@@ -30,7 +30,7 @@ ImmutableCFOptions::ImmutableCFOptions(const ImmutableDBOptions& db_options,
       compaction_options_universal(cf_options.compaction_options_universal),
       compaction_options_fifo(cf_options.compaction_options_fifo),
       prefix_extractor(cf_options.prefix_extractor.get()),
-      comparator(cf_options.comparator),
+      user_comparator(cf_options.comparator),
       merge_operator(cf_options.merge_operator.get()),
       compaction_filter(cf_options.compaction_filter),
       compaction_filter_factory(cf_options.compaction_filter_factory.get()),

util/cf_options.h

@@ -34,7 +34,7 @@ struct ImmutableCFOptions {
 
   const SliceTransform* prefix_extractor;
 
-  const Comparator* comparator;
+  const Comparator* user_comparator;
 
   MergeOperator* merge_operator;