Ran clang-format on db/ directory (#10910)

Summary:
Ran `find ./db/ -type f | xargs clang-format -i`. Excluded minor changes it tried to make on db/db_impl/. Everything else it changed was directly under db/ directory. Included minor manual touchups mentioned in PR commit history.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10910

Reviewed By: riversand963

Differential Revision: D40880683

Pulled By: ajkr

fbshipit-source-id: cfe26cda05b3fb9a72e3cb82c286e21d8c5c4174

db/arena_wrapped_db_iter.cc

@@ -8,6 +8,7 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
 #include "db/arena_wrapped_db_iter.h"
+
 #include "memory/arena.h"
 #include "rocksdb/env.h"
 #include "rocksdb/iterator.h"

db/arena_wrapped_db_iter.h

@@ -9,7 +9,9 @@
 
 #pragma once
 #include <stdint.h>
+
 #include <string>
+
 #include "db/db_impl/db_impl.h"
 #include "db/db_iter.h"
 #include "db/range_del_aggregator.h"

db/builder.cc

@@ -281,7 +281,8 @@ Status BuildTable(
       meta->fd.file_size = file_size;
       meta->marked_for_compaction = builder->NeedCompact();
       assert(meta->fd.GetFileSize() > 0);
-      tp = builder->GetTableProperties(); // refresh now that builder is finished
+      tp = builder
+               ->GetTableProperties();  // refresh now that builder is finished
       if (memtable_payload_bytes != nullptr &&
           memtable_garbage_bytes != nullptr) {
         const CompactionIterationStats& ci_stats = c_iter.iter_stats();

db/c_test.c

@@ -98,21 +98,15 @@ static void Free(char** ptr) {
   }
 }
 
-static void CheckValue(
-    char* err,
-    const char* expected,
-    char** actual,
+static void CheckValue(char* err, const char* expected, char** actual,
                        size_t actual_length) {
   CheckNoError(err);
   CheckEqual(expected, *actual, actual_length);
   Free(actual);
 }
 
-static void CheckGet(
-    rocksdb_t* db,
-    const rocksdb_readoptions_t* options,
-    const char* key,
-    const char* expected) {
+static void CheckGet(rocksdb_t* db, const rocksdb_readoptions_t* options,
+                     const char* key, const char* expected) {
   char* err = NULL;
   size_t val_len;
   char* val;
@@ -122,11 +116,8 @@ static void CheckGet(
   Free(&val);
 }
 
-static void CheckGetCF(
-    rocksdb_t* db,
-    const rocksdb_readoptions_t* options,
-    rocksdb_column_family_handle_t* handle,
-    const char* key,
+static void CheckGetCF(rocksdb_t* db, const rocksdb_readoptions_t* options,
+                       rocksdb_column_family_handle_t* handle, const char* key,
                        const char* expected) {
   char* err = NULL;
   size_t val_len;
@@ -174,8 +165,8 @@ static void CheckMultiGetValues(size_t num_keys, char** values,
   }
 }
 
-static void CheckIter(rocksdb_iterator_t* iter,
-                      const char* key, const char* val) {
+static void CheckIter(rocksdb_iterator_t* iter, const char* key,
+                      const char* val) {
   size_t len;
   const char* str;
   str = rocksdb_iter_key(iter, &len);
@@ -185,9 +176,8 @@ static void CheckIter(rocksdb_iterator_t* iter,
 }
 
 // Callback from rocksdb_writebatch_iterate()
-static void CheckPut(void* ptr,
-                     const char* k, size_t klen,
-                     const char* v, size_t vlen) {
+static void CheckPut(void* ptr, const char* k, size_t klen, const char* v,
+                     size_t vlen) {
   int* state = (int*)ptr;
   CheckCondition(*state < 2);
   switch (*state) {
@@ -213,14 +203,16 @@ static void CheckDel(void* ptr, const char* k, size_t klen) {
 
 static void CmpDestroy(void* arg) { (void)arg; }
 
-static int CmpCompare(void* arg, const char* a, size_t alen,
-                      const char* b, size_t blen) {
+static int CmpCompare(void* arg, const char* a, size_t alen, const char* b,
+                      size_t blen) {
   (void)arg;
   size_t n = (alen < blen) ? alen : blen;
   int r = memcmp(a, b, n);
   if (r == 0) {
-    if (alen < blen) r = -1;
-    else if (alen > blen) r = +1;
+    if (alen < blen)
+      r = -1;
+    else if (alen > blen)
+      r = +1;
   }
   return r;
 }
@@ -405,11 +397,9 @@ static const char* MergeOperatorName(void* arg) {
   return "TestMergeOperator";
 }
 static char* MergeOperatorFullMerge(
-    void* arg,
-    const char* key, size_t key_length,
-    const char* existing_value, size_t existing_value_length,
-    const char* const* operands_list, const size_t* operands_list_length,
-    int num_operands,
+    void* arg, const char* key, size_t key_length, const char* existing_value,
+    size_t existing_value_length, const char* const* operands_list,
+    const size_t* operands_list_length, int num_operands,
     unsigned char* success, size_t* new_value_length) {
   (void)arg;
   (void)key;
@@ -425,12 +415,12 @@ static char* MergeOperatorFullMerge(
   memcpy(result, "fake", 4);
   return result;
 }
-static char* MergeOperatorPartialMerge(
-    void* arg,
-    const char* key, size_t key_length,
-    const char* const* operands_list, const size_t* operands_list_length,
-    int num_operands,
-    unsigned char* success, size_t* new_value_length) {
+static char* MergeOperatorPartialMerge(void* arg, const char* key,
+                                       size_t key_length,
+                                       const char* const* operands_list,
+                                       const size_t* operands_list_length,
+                                       int num_operands, unsigned char* success,
+                                       size_t* new_value_length) {
   (void)arg;
   (void)key;
   (void)key_length;
@@ -444,10 +434,8 @@ static char* MergeOperatorPartialMerge(
   return result;
 }
 
-static void CheckTxnGet(
-        rocksdb_transaction_t* txn,
-        const rocksdb_readoptions_t* options,
-        const char* key,
+static void CheckTxnGet(rocksdb_transaction_t* txn,
+                        const rocksdb_readoptions_t* options, const char* key,
                         const char* expected) {
   char* err = NULL;
   size_t val_len;
@@ -502,10 +490,8 @@ static void CheckTxnPinGetCF(rocksdb_transaction_t* txn,
   rocksdb_pinnableslice_destroy(p);
 }
 
-static void CheckTxnDBGet(
-        rocksdb_transactiondb_t* txn_db,
-        const rocksdb_readoptions_t* options,
-        const char* key,
+static void CheckTxnDBGet(rocksdb_transactiondb_t* txn_db,
+                          const rocksdb_readoptions_t* options, const char* key,
                           const char* expected) {
   char* err = NULL;
   size_t val_len;
@@ -649,30 +635,20 @@ int main(int argc, char** argv) {
   char* err = NULL;
   int run = -1;
 
-  snprintf(dbname, sizeof(dbname),
-           "%s/rocksdb_c_test-%d",
-           GetTempDir(),
+  snprintf(dbname, sizeof(dbname), "%s/rocksdb_c_test-%d", GetTempDir(),
            ((int)geteuid()));
 
-  snprintf(dbbackupname, sizeof(dbbackupname),
-           "%s/rocksdb_c_test-%d-backup",
-           GetTempDir(),
-           ((int) geteuid()));
+  snprintf(dbbackupname, sizeof(dbbackupname), "%s/rocksdb_c_test-%d-backup",
+           GetTempDir(), ((int)geteuid()));
 
   snprintf(dbcheckpointname, sizeof(dbcheckpointname),
-           "%s/rocksdb_c_test-%d-checkpoint",
-           GetTempDir(),
-           ((int) geteuid()));
+           "%s/rocksdb_c_test-%d-checkpoint", GetTempDir(), ((int)geteuid()));
 
-  snprintf(sstfilename, sizeof(sstfilename),
-           "%s/rocksdb_c_test-%d-sst",
-           GetTempDir(),
-           ((int)geteuid()));
+  snprintf(sstfilename, sizeof(sstfilename), "%s/rocksdb_c_test-%d-sst",
+           GetTempDir(), ((int)geteuid()));
 
-  snprintf(dbpathname, sizeof(dbpathname),
-           "%s/rocksdb_c_test-%d-dbpath",
-           GetTempDir(),
-           ((int) geteuid()));
+  snprintf(dbpathname, sizeof(dbpathname), "%s/rocksdb_c_test-%d-dbpath",
+           GetTempDir(), ((int)geteuid()));
 
   StartPhase("create_objects");
   cmp = rocksdb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName);
@@ -746,7 +722,8 @@ int main(int argc, char** argv) {
     rocksdb_destroy_db(options, dbbackupname, &err);
     CheckNoError(err);
 
-    rocksdb_backup_engine_t *be = rocksdb_backup_engine_open(options, dbbackupname, &err);
+    rocksdb_backup_engine_t* be =
+        rocksdb_backup_engine_open(options, dbbackupname, &err);
     CheckNoError(err);
 
     rocksdb_backup_engine_create_new_backup(be, db, &err);
@@ -759,7 +736,8 @@ int main(int argc, char** argv) {
     rocksdb_backup_engine_create_new_backup(be, db, &err);
     CheckNoError(err);
 
-    const rocksdb_backup_engine_info_t* bei = rocksdb_backup_engine_get_backup_info(be);
+    const rocksdb_backup_engine_info_t* bei =
+        rocksdb_backup_engine_get_backup_info(be);
     CheckCondition(rocksdb_backup_engine_info_count(bei) > 1);
     rocksdb_backup_engine_info_destroy(bei);
 
@@ -778,9 +756,11 @@ int main(int argc, char** argv) {
     rocksdb_destroy_db(options, dbname, &err);
     CheckNoError(err);
 
-    rocksdb_restore_options_t *restore_options = rocksdb_restore_options_create();
+    rocksdb_restore_options_t* restore_options =
+        rocksdb_restore_options_create();
     rocksdb_restore_options_set_keep_log_files(restore_options, 0);
-    rocksdb_backup_engine_restore_db_from_latest_backup(be, dbname, dbname, restore_options, &err);
+    rocksdb_backup_engine_restore_db_from_latest_backup(be, dbname, dbname,
+                                                        restore_options, &err);
     CheckNoError(err);
     rocksdb_restore_options_destroy(restore_options);
 
@@ -799,7 +779,8 @@ int main(int argc, char** argv) {
     rocksdb_destroy_db(options, dbcheckpointname, &err);
     CheckNoError(err);
 
-    rocksdb_checkpoint_t* checkpoint = rocksdb_checkpoint_object_create(db, &err);
+    rocksdb_checkpoint_t* checkpoint =
+        rocksdb_checkpoint_object_create(db, &err);
     CheckNoError(err);
 
     rocksdb_checkpoint_create(checkpoint, dbcheckpointname, 0, &err);
@@ -1041,13 +1022,17 @@ int main(int argc, char** argv) {
     CheckCondition(count == 3);
     size_t size;
     char* value;
-    value = rocksdb_writebatch_wi_get_from_batch(wbi, options, "box", 3, &size, &err);
+    value = rocksdb_writebatch_wi_get_from_batch(wbi, options, "box", 3, &size,
+                                                 &err);
     CheckValue(err, "c", &value, size);
-    value = rocksdb_writebatch_wi_get_from_batch(wbi, options, "bar", 3, &size, &err);
+    value = rocksdb_writebatch_wi_get_from_batch(wbi, options, "bar", 3, &size,
+                                                 &err);
     CheckValue(err, NULL, &value, size);
-    value = rocksdb_writebatch_wi_get_from_batch_and_db(wbi, db, roptions, "foo", 3, &size, &err);
+    value = rocksdb_writebatch_wi_get_from_batch_and_db(wbi, db, roptions,
+                                                        "foo", 3, &size, &err);
     CheckValue(err, "hello", &value, size);
-    value = rocksdb_writebatch_wi_get_from_batch_and_db(wbi, db, roptions, "box", 3, &size, &err);
+    value = rocksdb_writebatch_wi_get_from_batch_and_db(wbi, db, roptions,
+                                                        "box", 3, &size, &err);
     CheckValue(err, "c", &value, size);
     rocksdb_write_writebatch_wi(db, woptions, wbi, &err);
     CheckNoError(err);
@@ -1162,7 +1147,8 @@ int main(int argc, char** argv) {
     size_t vals_sizes[3];
     char* errs[3];
     const char* expected[3] = {"c", "hello", NULL};
-    rocksdb_multi_get(db, roptions, 3, keys, keys_sizes, vals, vals_sizes, errs);
+    rocksdb_multi_get(db, roptions, 3, keys, keys_sizes, vals, vals_sizes,
+                      errs);
     CheckMultiGetValues(3, vals, vals_sizes, errs, expected);
   }
 
@@ -1393,8 +1379,8 @@ int main(int argc, char** argv) {
                                                   factory);
     db = CheckCompaction(db, options_with_filter_factory, roptions, woptions);
 
-    rocksdb_options_set_compaction_filter_factory(
-        options_with_filter_factory, NULL);
+    rocksdb_options_set_compaction_filter_factory(options_with_filter_factory,
+                                                  NULL);
     rocksdb_options_destroy(options_with_filter_factory);
   }
 
@@ -1449,7 +1435,8 @@ int main(int argc, char** argv) {
     rocksdb_close(db);
 
     size_t cflen;
-    char** column_fams = rocksdb_list_column_families(db_options, dbname, &cflen, &err);
+    char** column_fams =
+        rocksdb_list_column_families(db_options, dbname, &cflen, &err);
     CheckNoError(err);
     CheckEqual("default", column_fams[0], 7);
     CheckEqual("cf1", column_fams[1], 3);
@@ -1465,7 +1452,8 @@ int main(int argc, char** argv) {
     LoadAndCheckLatestOptions(dbname, env, false, cache, NULL, 2, cf_names,
                               NULL);
 
-    db = rocksdb_open_column_families(db_options, dbname, 2, cf_names, cf_opts, handles, &err);
+    db = rocksdb_open_column_families(db_options, dbname, 2, cf_names, cf_opts,
+                                      handles, &err);
     CheckNoError(err);
 
     rocksdb_put_cf(db, woptions, handles[1], "foo", 3, "hello", 5, &err);
@@ -1486,8 +1474,7 @@ int main(int argc, char** argv) {
     rocksdb_flushoptions_t* flush_options = rocksdb_flushoptions_create();
     rocksdb_flushoptions_set_wait(flush_options, 1);
     rocksdb_flush_cf(db, flush_options, handles[1], &err);
-    CheckNoError(err)
-    rocksdb_flushoptions_destroy(flush_options);
+    CheckNoError(err) rocksdb_flushoptions_destroy(flush_options);
 
     CheckGetCF(db, roptions, handles[1], "foo", "hello");
     CheckPinGetCF(db, roptions, handles[1], "foo", "hello");
@@ -1525,12 +1512,14 @@ int main(int argc, char** argv) {
     CheckNoError(err);
 
     const char* keys[3] = {"box", "box", "barfooxx"};
-    const rocksdb_column_family_handle_t* get_handles[3] = { handles[0], handles[1], handles[1] };
+    const rocksdb_column_family_handle_t* get_handles[3] = {
+        handles[0], handles[1], handles[1]};
     const size_t keys_sizes[3] = {3, 3, 8};
     char* vals[3];
     size_t vals_sizes[3];
     char* errs[3];
-    rocksdb_multi_get_cf(db, roptions, get_handles, 3, keys, keys_sizes, vals, vals_sizes, errs);
+    rocksdb_multi_get_cf(db, roptions, get_handles, 3, keys, keys_sizes, vals,
+                         vals_sizes, errs);
 
     int i;
     for (i = 0; i < 3; i++) {
@@ -1592,7 +1581,8 @@ int main(int argc, char** argv) {
       }
     }
 
-    rocksdb_iterator_t* iter = rocksdb_create_iterator_cf(db, roptions, handles[1]);
+    rocksdb_iterator_t* iter =
+        rocksdb_create_iterator_cf(db, roptions, handles[1]);
     CheckCondition(!rocksdb_iter_valid(iter));
     rocksdb_iter_seek_to_first(iter);
     CheckCondition(rocksdb_iter_valid(iter));
@@ -1605,9 +1595,11 @@ int main(int argc, char** argv) {
     CheckNoError(err);
     rocksdb_iter_destroy(iter);
 
-    rocksdb_column_family_handle_t* iters_cf_handles[2] = { handles[0], handles[1] };
+    rocksdb_column_family_handle_t* iters_cf_handles[2] = {handles[0],
+                                                           handles[1]};
     rocksdb_iterator_t* iters_handles[2];
-    rocksdb_create_iterators(db, roptions, iters_cf_handles, iters_handles, 2, &err);
+    rocksdb_create_iterators(db, roptions, iters_cf_handles, iters_handles, 2,
+                             &err);
     CheckNoError(err);
 
     iter = iters_handles[0];
@@ -1652,7 +1644,8 @@ int main(int argc, char** argv) {
   {
     // Create new database
     rocksdb_options_set_allow_mmap_reads(options, 1);
-    rocksdb_options_set_prefix_extractor(options, rocksdb_slicetransform_create_fixed_prefix(3));
+    rocksdb_options_set_prefix_extractor(
+        options, rocksdb_slicetransform_create_fixed_prefix(3));
     rocksdb_options_set_hash_skip_list_rep(options, 5000, 4, 4);
     rocksdb_options_set_plain_table_factory(options, 4, 10, 0.75, 16);
     rocksdb_options_set_allow_concurrent_memtable_write(options, 0);
@@ -1747,7 +1740,8 @@ int main(int argc, char** argv) {
     // amount of memory used within memtables should grow
     CheckCondition(rocksdb_approximate_memory_usage_get_mem_table_total(mu2) >=
                    rocksdb_approximate_memory_usage_get_mem_table_total(mu1));
-    CheckCondition(rocksdb_approximate_memory_usage_get_mem_table_unflushed(mu2) >=
+    CheckCondition(
+        rocksdb_approximate_memory_usage_get_mem_table_unflushed(mu2) >=
         rocksdb_approximate_memory_usage_get_mem_table_unflushed(mu1));
 
     rocksdb_memory_consumers_destroy(consumers);
@@ -2839,10 +2833,14 @@ int main(int argc, char** argv) {
     db = rocksdb_open(options, dbname, &err);
     CheckNoError(err);
 
-    rocksdb_put(db, woptions, "a",    1, "0",    1, &err); CheckNoError(err);
-    rocksdb_put(db, woptions, "foo",  3, "bar",  3, &err); CheckNoError(err);
-    rocksdb_put(db, woptions, "foo1", 4, "bar1", 4, &err); CheckNoError(err);
-    rocksdb_put(db, woptions, "g1",   2, "0",    1, &err); CheckNoError(err);
+    rocksdb_put(db, woptions, "a", 1, "0", 1, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "foo", 3, "bar", 3, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "foo1", 4, "bar1", 4, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "g1", 2, "0", 1, &err);
+    CheckNoError(err);
 
     // testing basic case with no iterate_upper_bound and no prefix_extractor
     {
@@ -3021,7 +3019,8 @@ int main(int argc, char** argv) {
 
     // iterate
     rocksdb_transaction_put(txn, "bar", 3, "hi", 2, &err);
-    rocksdb_iterator_t* iter = rocksdb_transaction_create_iterator(txn, roptions);
+    rocksdb_iterator_t* iter =
+        rocksdb_transaction_create_iterator(txn, roptions);
     CheckCondition(!rocksdb_iter_valid(iter));
     rocksdb_iter_seek_to_first(iter);
     CheckCondition(rocksdb_iter_valid(iter));

db/column_family.cc

@@ -192,8 +192,7 @@ Status CheckCFPathsSupported(const DBOptions& db_options,
       return Status::NotSupported(
           "More than one CF paths are only supported in "
           "universal and level compaction styles. ");
-    } else if (cf_options.cf_paths.empty() &&
-               db_options.db_paths.size() > 1) {
+    } else if (cf_options.cf_paths.empty() && db_options.db_paths.size() > 1) {
       return Status::NotSupported(
           "More than one DB paths are only supported in "
           "universal and level compaction styles. ");
@@ -205,7 +204,7 @@ Status CheckCFPathsSupported(const DBOptions& db_options,
 namespace {
 const uint64_t kDefaultTtl = 0xfffffffffffffffe;
 const uint64_t kDefaultPeriodicCompSecs = 0xfffffffffffffffe;
-}  // namespace
+}  // anonymous namespace
 
 ColumnFamilyOptions SanitizeOptions(const ImmutableDBOptions& db_options,
                                     const ColumnFamilyOptions& src) {
@@ -353,7 +352,8 @@ ColumnFamilyOptions SanitizeOptions(const ImmutableDBOptions& db_options,
   // were not deleted yet, when we open the DB we will find these .trash files
   // and schedule them to be deleted (or delete immediately if SstFileManager
   // was not used)
-  auto sfm = static_cast<SstFileManagerImpl*>(db_options.sst_file_manager.get());
+  auto sfm =
+      static_cast<SstFileManagerImpl*>(db_options.sst_file_manager.get());
   for (size_t i = 0; i < result.cf_paths.size(); i++) {
     DeleteScheduler::CleanupDirectory(db_options.env, sfm,
                                       result.cf_paths[i].path)
@@ -610,8 +610,8 @@ ColumnFamilyData::ColumnFamilyData(
       compaction_picker_.reset(
           new FIFOCompactionPicker(ioptions_, &internal_comparator_));
     } else if (ioptions_.compaction_style == kCompactionStyleNone) {
-      compaction_picker_.reset(new NullCompactionPicker(
-          ioptions_, &internal_comparator_));
+      compaction_picker_.reset(
+          new NullCompactionPicker(ioptions_, &internal_comparator_));
       ROCKS_LOG_WARN(ioptions_.logger,
                      "Column family %s does not use any background compaction. "
                      "Compactions can only be done via CompactFiles\n",
@@ -878,7 +878,7 @@ int GetL0ThresholdSpeedupCompaction(int level0_file_num_compaction_trigger,
     return static_cast<int>(res);
   }
 }
-}  // namespace
+}  // anonymous namespace
 
 std::pair<WriteStallCondition, ColumnFamilyData::WriteStallCause>
 ColumnFamilyData::GetWriteStallConditionAndCause(
@@ -1012,7 +1012,8 @@ WriteStallCondition ColumnFamilyData::RecalculateWriteStallConditions(
           mutable_cf_options.hard_pending_compaction_bytes_limit > 0 &&
           (compaction_needed_bytes -
            mutable_cf_options.soft_pending_compaction_bytes_limit) >
-              3 * (mutable_cf_options.hard_pending_compaction_bytes_limit -
+              3 *
+                  (mutable_cf_options.hard_pending_compaction_bytes_limit -
                    mutable_cf_options.soft_pending_compaction_bytes_limit) /
                   4;
 
@@ -1305,8 +1306,8 @@ bool ColumnFamilyData::ReturnThreadLocalSuperVersion(SuperVersion* sv) {
   return false;
 }
 
-void ColumnFamilyData::InstallSuperVersion(
-    SuperVersionContext* sv_context, InstrumentedMutex* db_mutex) {
+void ColumnFamilyData::InstallSuperVersion(SuperVersionContext* sv_context,
+                                           InstrumentedMutex* db_mutex) {
   db_mutex->AssertHeld();
   return InstallSuperVersion(sv_context, mutable_cf_options_);
 }
@@ -1483,8 +1484,8 @@ Env::WriteLifeTimeHint ColumnFamilyData::CalculateSSTWriteHint(int level) {
     // than base_level.
     return Env::WLTH_MEDIUM;
   }
-  return static_cast<Env::WriteLifeTimeHint>(level - base_level +
-                            static_cast<int>(Env::WLTH_MEDIUM));
+  return static_cast<Env::WriteLifeTimeHint>(
+      level - base_level + static_cast<int>(Env::WLTH_MEDIUM));
 }
 
 Status ColumnFamilyData::AddDirectories(
@@ -1580,8 +1581,8 @@ ColumnFamilyData* ColumnFamilySet::GetColumnFamily(uint32_t id) const {
   }
 }
 
-ColumnFamilyData* ColumnFamilySet::GetColumnFamily(const std::string& name)
-    const {
+ColumnFamilyData* ColumnFamilySet::GetColumnFamily(
+    const std::string& name) const {
   auto cfd_iter = column_families_.find(name);
   if (cfd_iter != column_families_.end()) {
     auto cfd = GetColumnFamily(cfd_iter->second);

db/column_family.h

@@ -163,8 +163,8 @@ extern const double kIncSlowdownRatio;
 class ColumnFamilyHandleImpl : public ColumnFamilyHandle {
  public:
   // create while holding the mutex
-  ColumnFamilyHandleImpl(
-      ColumnFamilyData* cfd, DBImpl* db, InstrumentedMutex* mutex);
+  ColumnFamilyHandleImpl(ColumnFamilyData* cfd, DBImpl* db,
+                         InstrumentedMutex* mutex);
   // destroy without mutex
   virtual ~ColumnFamilyHandleImpl();
   virtual ColumnFamilyData* cfd() const { return cfd_; }
@@ -189,7 +189,8 @@ class ColumnFamilyHandleImpl : public ColumnFamilyHandle {
 class ColumnFamilyHandleInternal : public ColumnFamilyHandleImpl {
  public:
   ColumnFamilyHandleInternal()
-      : ColumnFamilyHandleImpl(nullptr, nullptr, nullptr), internal_cfd_(nullptr) {}
+      : ColumnFamilyHandleImpl(nullptr, nullptr, nullptr),
+        internal_cfd_(nullptr) {}
 
   void SetCFD(ColumnFamilyData* _cfd) { internal_cfd_ = _cfd; }
   virtual ColumnFamilyData* cfd() const override { return internal_cfd_; }
@@ -656,8 +657,7 @@ class ColumnFamilySet {
   // ColumnFamilySet supports iteration
   class iterator {
    public:
-    explicit iterator(ColumnFamilyData* cfd)
-        : current_(cfd) {}
+    explicit iterator(ColumnFamilyData* cfd) : current_(cfd) {}
     // NOTE: minimum operators for for-loop iteration
     iterator& operator++() {
       current_ = current_->next_;

db/column_family_test.cc

@@ -39,9 +39,7 @@ class EnvCounter : public SpecialEnv {
  public:
   explicit EnvCounter(Env* base)
       : SpecialEnv(base), num_new_writable_file_(0) {}
-  int GetNumberOfNewWritableFileCalls() {
-    return num_new_writable_file_;
-  }
+  int GetNumberOfNewWritableFileCalls() { return num_new_writable_file_; }
   Status NewWritableFile(const std::string& f, std::unique_ptr<WritableFile>* r,
                          const EnvOptions& soptions) override {
     ++num_new_writable_file_;
@@ -206,15 +204,12 @@ class ColumnFamilyTestBase : public testing::Test {
   }
 #endif  // !ROCKSDB_LITE
 
-
   void Open(std::vector<std::string> cf,
             std::vector<ColumnFamilyOptions> options = {}) {
     ASSERT_OK(TryOpen(cf, options));
   }
 
-  void Open() {
-    Open({"default"});
-  }
+  void Open() { Open({"default"}); }
 
   DBImpl* dbfull() { return static_cast_with_check<DBImpl>(db_); }
 
@@ -335,9 +330,7 @@ class ColumnFamilyTestBase : public testing::Test {
     ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable(handles_[cf]));
   }
 
-  void WaitForCompaction() {
-    ASSERT_OK(dbfull()->TEST_WaitForCompact());
-  }
+  void WaitForCompaction() { ASSERT_OK(dbfull()->TEST_WaitForCompact()); }
 
   uint64_t MaxTotalInMemoryState() {
     return dbfull()->TEST_MaxTotalInMemoryState();
@@ -354,9 +347,7 @@ class ColumnFamilyTestBase : public testing::Test {
   Status Merge(int cf, const std::string& key, const std::string& value) {
     return db_->Merge(WriteOptions(), handles_[cf], Slice(key), Slice(value));
   }
-  Status Flush(int cf) {
-    return db_->Flush(FlushOptions(), handles_[cf]);
-  }
+  Status Flush(int cf) { return db_->Flush(FlushOptions(), handles_[cf]); }
 
   std::string Get(int cf, const std::string& key) {
     ReadOptions options;
@@ -521,8 +512,8 @@ class ColumnFamilyTestBase : public testing::Test {
     return static_cast<int>(files.size());
   }
 
-  void RecalculateWriteStallConditions(ColumnFamilyData* cfd,
-      const MutableCFOptions& mutable_cf_options)  {
+  void RecalculateWriteStallConditions(
+      ColumnFamilyData* cfd, const MutableCFOptions& mutable_cf_options) {
     // add lock to avoid race condition between
     // `RecalculateWriteStallConditions` which writes to CFStats and
     // background `DBImpl::DumpStats()` threads which read CFStats
@@ -970,8 +961,7 @@ TEST_P(ColumnFamilyTest, FlushTest) {
     }
 
     for (int i = 0; i < 3; ++i) {
-      uint64_t max_total_in_memory_state =
-          MaxTotalInMemoryState();
+      uint64_t max_total_in_memory_state = MaxTotalInMemoryState();
       ASSERT_OK(Flush(i));
       AssertMaxTotalInMemoryState(max_total_in_memory_state);
     }
@@ -2123,7 +2113,6 @@ TEST_P(ColumnFamilyTest, ReadOnlyDBTest) {
   ASSERT_EQ("bla", Get(1, "foo"));
   ASSERT_EQ("blablablabla", Get(2, "foo"));
 
-
   // test newiterators
   {
     std::vector<Iterator*> iterators;
@@ -2488,7 +2477,7 @@ void DropSingleColumnFamily(ColumnFamilyTest* cf_test, int cf_id,
   }
   test_stage = kChildThreadFinishDroppingColumnFamily;
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_P(ColumnFamilyTest, CreateAndDropRace) {
   const int kCfCount = 5;

db/compact_files_test.cc

@@ -348,9 +348,7 @@ TEST_F(CompactFilesTest, CompactionFilterWithGetSv) {
       return true;
     }
 
-    void SetDB(DB* db) {
-      db_ = db;
-    }
+    void SetDB(DB* db) { db_ = db; }
 
     const char* Name() const override { return "FilterWithGet"; }
 
@@ -358,7 +356,6 @@ TEST_F(CompactFilesTest, CompactionFilterWithGetSv) {
     DB* db_;
   };
 
-
   std::shared_ptr<FilterWithGet> cf(new FilterWithGet());
 
   Options options;
@@ -385,7 +382,6 @@ TEST_F(CompactFilesTest, CompactionFilterWithGetSv) {
         db->CompactFiles(ROCKSDB_NAMESPACE::CompactionOptions(), {fname}, 0));
   }
 
-
   delete db;
 }
 
@@ -400,8 +396,7 @@ TEST_F(CompactFilesTest, SentinelCompressionType) {
   }
   // Check that passing `CompressionType::kDisableCompressionOption` to
   // `CompactFiles` causes it to use the column family compression options.
-  for (auto compaction_style :
-       {CompactionStyle::kCompactionStyleLevel,
+  for (auto compaction_style : {CompactionStyle::kCompactionStyleLevel,
                                 CompactionStyle::kCompactionStyleUniversal,
                                 CompactionStyle::kCompactionStyleNone}) {
     ASSERT_OK(DestroyDB(db_name_, Options()));

db/comparator_db_test.cc

@@ -17,7 +17,6 @@
 #include "util/string_util.h"
 #include "utilities/merge_operators.h"
 
-
 namespace ROCKSDB_NAMESPACE {
 namespace {
 
@@ -249,7 +248,7 @@ class TwoStrComparator : public Comparator {
 
   void FindShortSuccessor(std::string* /*key*/) const override {}
 };
-}  // namespace
+}  // anonymous namespace
 
 class ComparatorDBTest
     : public testing::Test,
@@ -470,7 +469,7 @@ void VerifySuccessor(const Slice& s, const Slice& t) {
   ASSERT_FALSE(rbc->IsSameLengthImmediateSuccessor(t, s));
 }
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_P(ComparatorDBTest, IsSameLengthImmediateSuccessor) {
   {

db/convenience.cc

@@ -26,8 +26,7 @@ Status DeleteFilesInRange(DB* db, ColumnFamilyHandle* column_family,
 }
 
 Status DeleteFilesInRanges(DB* db, ColumnFamilyHandle* column_family,
-                           const RangePtr* ranges, size_t n,
-                           bool include_end) {
+                           const RangePtr* ranges, size_t n, bool include_end) {
   return (static_cast_with_check<DBImpl>(db->GetRootDB()))
       ->DeleteFilesInRanges(column_family, ranges, n, include_end);
 }
@@ -47,9 +46,8 @@ Status VerifySstFileChecksum(const Options& options,
   InternalKeyComparator internal_comparator(options.comparator);
   ImmutableOptions ioptions(options);
 
-  Status s = ioptions.fs->NewRandomAccessFile(file_path,
-                                              FileOptions(env_options),
-                                              &file, nullptr);
+  Status s = ioptions.fs->NewRandomAccessFile(
+      file_path, FileOptions(env_options), &file, nullptr);
   if (s.ok()) {
     s = ioptions.fs->GetFileSize(file_path, IOOptions(), &file_size, nullptr);
   } else {

db/corruption_test.cc

@@ -65,7 +65,7 @@ class ErrorEnv : public EnvWrapper {
     return target()->NewWritableFile(fname, result, soptions);
   }
 };
-}  // namespace
+}  // anonymous namespace
 class CorruptionTest : public testing::Test {
  public:
   std::shared_ptr<Env> env_guard_;
@@ -138,9 +138,7 @@ class CorruptionTest : public testing::Test {
     return DB::Open(opt, dbname_, &db_);
   }
 
-  void Reopen(Options* options = nullptr) {
-    ASSERT_OK(TryReopen(options));
-  }
+  void Reopen(Options* options = nullptr) { ASSERT_OK(TryReopen(options)); }
 
   void RepairDB() {
     delete db_;
@@ -183,8 +181,7 @@ class CorruptionTest : public testing::Test {
       ASSERT_OK(iter->status());
       uint64_t key;
       Slice in(iter->key());
-      if (!ConsumeDecimalNumber(&in, &key) ||
-          !in.empty() ||
+      if (!ConsumeDecimalNumber(&in, &key) || !in.empty() ||
           key < next_expected) {
         bad_keys++;
         continue;
@@ -200,7 +197,8 @@ class CorruptionTest : public testing::Test {
     iter->status().PermitUncheckedError();
     delete iter;
 
-    fprintf(stderr,
+    fprintf(
+        stderr,
         "expected=%d..%d; got=%d; bad_keys=%d; bad_values=%d; missed=%llu\n",
         min_expected, max_expected, correct, bad_keys, bad_values,
         static_cast<unsigned long long>(missed));
@@ -217,8 +215,7 @@ class CorruptionTest : public testing::Test {
     std::string fname;
     int picked_number = -1;
     for (size_t i = 0; i < filenames.size(); i++) {
-      if (ParseFileName(filenames[i], &number, &type) &&
-          type == filetype &&
+      if (ParseFileName(filenames[i], &number, &type) && type == filetype &&
           static_cast<int>(number) > picked_number) {  // Pick latest file
         fname = dbname_ + "/" + filenames[i];
         picked_number = static_cast<int>(number);
@@ -244,7 +241,6 @@ class CorruptionTest : public testing::Test {
     FAIL() << "no file found at level";
   }
 
-
   int Property(const std::string& name) {
     std::string property;
     int result;

db/cuckoo_table_db_test.cc

@@ -77,9 +77,7 @@ class CuckooTableDBTest : public testing::Test {
     return db_->Put(WriteOptions(), k, v);
   }
 
-  Status Delete(const std::string& k) {
-    return db_->Delete(WriteOptions(), k);
-  }
+  Status Delete(const std::string& k) { return db_->Delete(WriteOptions(), k); }
 
   std::string Get(const std::string& k) {
     ReadOptions options;
@@ -313,23 +311,21 @@ TEST_F(CuckooTableDBTest, AdaptiveTable) {
   // Write some keys using plain table.
   std::shared_ptr<TableFactory> block_based_factory(
       NewBlockBasedTableFactory());
-  std::shared_ptr<TableFactory> plain_table_factory(
-      NewPlainTableFactory());
-  std::shared_ptr<TableFactory> cuckoo_table_factory(
-      NewCuckooTableFactory());
+  std::shared_ptr<TableFactory> plain_table_factory(NewPlainTableFactory());
+  std::shared_ptr<TableFactory> cuckoo_table_factory(NewCuckooTableFactory());
   options.create_if_missing = false;
-  options.table_factory.reset(NewAdaptiveTableFactory(
-    plain_table_factory, block_based_factory, plain_table_factory,
-    cuckoo_table_factory));
+  options.table_factory.reset(
+      NewAdaptiveTableFactory(plain_table_factory, block_based_factory,
+                              plain_table_factory, cuckoo_table_factory));
   Reopen(&options);
   ASSERT_OK(Put("key4", "v4"));
   ASSERT_OK(Put("key1", "v5"));
   ASSERT_OK(dbfull()->TEST_FlushMemTable());
 
   // Write some keys using block based table.
-  options.table_factory.reset(NewAdaptiveTableFactory(
-    block_based_factory, block_based_factory, plain_table_factory,
-    cuckoo_table_factory));
+  options.table_factory.reset(
+      NewAdaptiveTableFactory(block_based_factory, block_based_factory,
+                              plain_table_factory, cuckoo_table_factory));
   Reopen(&options);
   ASSERT_OK(Put("key5", "v6"));
   ASSERT_OK(Put("key2", "v7"));

db/db_basic_test.cc

@@ -2914,7 +2914,7 @@ class TableFileListener : public EventListener {
   InstrumentedMutex mutex_;
   std::unordered_map<std::string, std::vector<std::string>> cf_to_paths_;
 };
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBBasicTest, LastSstFileNotInManifest) {
   // If the last sst file is not tracked in MANIFEST,

db/db_block_cache_test.cc

@@ -414,7 +414,7 @@ class ReadOnlyCacheWrapper : public CacheWrapper {
   }
 };
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBBlockCacheTest, TestWithSameCompressed) {
   auto table_options = GetTableOptions();
@@ -1973,7 +1973,7 @@ struct CacheKeyDecoder {
                                    DownwardInvolution(decoded_session_counter));
   }
 };
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(CacheKeyTest, Encodings) {
   // This test primarily verifies this claim from cache_key.cc:

db/db_bloom_filter_test.cc

@@ -43,7 +43,7 @@ const std::string kStandard128Ribbon =
     test::Standard128RibbonFilterPolicy::kClassName();
 const std::string kAutoBloom = BloomFilterPolicy::kClassName();
 const std::string kAutoRibbon = RibbonFilterPolicy::kClassName();
-}  // namespace
+}  // anonymous namespace
 
 // DB tests related to bloom filter.
 
@@ -622,7 +622,7 @@ class AlwaysTrueFilterPolicy : public ReadOnlyBuiltinFilterPolicy {
   bool skip_;
 };
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_P(DBBloomFilterTestWithParam, SkipFilterOnEssentiallyZeroBpk) {
   constexpr int maxKey = 10;
@@ -767,10 +767,10 @@ INSTANTIATE_TEST_CASE_P(
 
 INSTANTIATE_TEST_CASE_P(
     FormatLatest, DBBloomFilterTestWithParam,
-    ::testing::Values(
-        std::make_tuple(kAutoBloom, true, kLatestFormatVersion),
+    ::testing::Values(std::make_tuple(kAutoBloom, true, kLatestFormatVersion),
                       std::make_tuple(kAutoBloom, false, kLatestFormatVersion),
-        std::make_tuple(kAutoRibbon, false, kLatestFormatVersion)));
+                      std::make_tuple(kAutoRibbon, false,
+                                      kLatestFormatVersion)));
 #endif  // !defined(ROCKSDB_VALGRIND_RUN) || defined(ROCKSDB_FULL_VALGRIND_RUN)
 
 TEST_F(DBBloomFilterTest, BloomFilterRate) {
@@ -840,7 +840,7 @@ std::vector<CompatibilityConfig> kCompatibilityConfigs = {
      BlockBasedTableOptions().format_version},
     {kCompatibilityRibbonPolicy, true, BlockBasedTableOptions().format_version},
 };
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBBloomFilterTest, BloomFilterCompatibility) {
   Options options = CurrentOptions();
@@ -1678,7 +1678,7 @@ class TestingContextCustomFilterPolicy
  private:
   mutable std::string test_report_;
 };
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBBloomFilterTest, ContextCustomFilterPolicy) {
   auto policy = std::make_shared<TestingContextCustomFilterPolicy>(15, 8, 5);
@@ -2186,16 +2186,14 @@ INSTANTIATE_TEST_CASE_P(DBBloomFilterTestVaryPrefixAndFormatVer,
                             std::make_tuple(false, 2),
                             std::make_tuple(false, 3),
                             std::make_tuple(false, 4),
-                            std::make_tuple(false, 5),
-                            std::make_tuple(true, 2),
-                            std::make_tuple(true, 3),
-                            std::make_tuple(true, 4),
+                            std::make_tuple(false, 5), std::make_tuple(true, 2),
+                            std::make_tuple(true, 3), std::make_tuple(true, 4),
                             std::make_tuple(true, 5)));
 
 #ifndef ROCKSDB_LITE
 namespace {
 static const std::string kPlainTable = "test_PlainTableBloom";
-}  // namespace
+}  // anonymous namespace
 
 class BloomStatsTestWithParam
     : public DBBloomFilterTest,
@@ -2408,7 +2406,7 @@ void PrefixScanInit(DBBloomFilterTest* dbtest) {
     dbtest->Flush();
   }
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBBloomFilterTest, PrefixScan) {
   while (ChangeFilterOptions()) {
@@ -3169,7 +3167,7 @@ std::pair<uint64_t, uint64_t> CheckedAndUseful(uint64_t checked,
                                                uint64_t useful) {
   return {checked, useful};
 }
-}  // namespace
+}  // anonymous namespace
 
 // This uses a prefix_extractor + comparator combination that violates
 // one of the old obsolete, unnecessary axioms of prefix extraction:
@@ -3377,7 +3375,7 @@ class NonIdempotentFixed4Transform : public SliceTransform {
 
   bool InDomain(const Slice& src) const override { return src.size() >= 5; }
 };
-}  // namespace
+}  // anonymous namespace
 
 // This uses a prefix_extractor + comparator combination that violates
 // two of the old obsolete, unnecessary axioms of prefix extraction:

db/db_compaction_test.cc

@@ -255,9 +255,8 @@ Options DeletionTriggerOptions(Options options) {
   return options;
 }
 
-bool HaveOverlappingKeyRanges(
-    const Comparator* c,
-    const SstFileMetaData& a, const SstFileMetaData& b) {
+bool HaveOverlappingKeyRanges(const Comparator* c, const SstFileMetaData& a,
+                              const SstFileMetaData& b) {
   if (c->CompareWithoutTimestamp(a.smallestkey, b.smallestkey) >= 0) {
     if (c->CompareWithoutTimestamp(a.smallestkey, b.largestkey) <= 0) {
       // b.smallestkey <= a.smallestkey <= b.largestkey
@@ -282,18 +281,15 @@ bool HaveOverlappingKeyRanges(
 // Identifies all files between level "min_level" and "max_level"
 // which has overlapping key range with "input_file_meta".
 void GetOverlappingFileNumbersForLevelCompaction(
-    const ColumnFamilyMetaData& cf_meta,
-    const Comparator* comparator,
-    int min_level, int max_level,
-    const SstFileMetaData* input_file_meta,
+    const ColumnFamilyMetaData& cf_meta, const Comparator* comparator,
+    int min_level, int max_level, const SstFileMetaData* input_file_meta,
     std::set<std::string>* overlapping_file_names) {
   std::set<const SstFileMetaData*> overlapping_files;
   overlapping_files.insert(input_file_meta);
   for (int m = min_level; m <= max_level; ++m) {
     for (auto& file : cf_meta.levels[m].files) {
       for (auto* included_file : overlapping_files) {
-        if (HaveOverlappingKeyRanges(
-                comparator, *included_file, file)) {
+        if (HaveOverlappingKeyRanges(comparator, *included_file, file)) {
           overlapping_files.insert(&file);
           overlapping_file_names->insert(file.name);
           break;
@@ -316,12 +312,9 @@ void VerifyCompactionResult(
 #endif
 }
 
-const SstFileMetaData* PickFileRandomly(
-    const ColumnFamilyMetaData& cf_meta,
-    Random* rand,
-    int* level = nullptr) {
-  auto file_id = rand->Uniform(static_cast<int>(
-      cf_meta.file_count)) + 1;
+const SstFileMetaData* PickFileRandomly(const ColumnFamilyMetaData& cf_meta,
+                                        Random* rand, int* level = nullptr) {
+  auto file_id = rand->Uniform(static_cast<int>(cf_meta.file_count)) + 1;
   for (auto& level_meta : cf_meta.levels) {
     if (file_id <= level_meta.files.size()) {
       if (level != nullptr) {
@@ -747,7 +740,6 @@ TEST_F(DBCompactionTest, DisableStatsUpdateReopen) {
   }
 }
 
-
 TEST_P(DBCompactionTestWithParam, CompactionTrigger) {
   const int kNumKeysPerFile = 100;
 
@@ -1254,14 +1246,8 @@ TEST_P(DBCompactionTestWithParam, TrivialMoveNonOverlappingFiles) {
   DestroyAndReopen(options);
   // non overlapping ranges
   std::vector<std::pair<int32_t, int32_t>> ranges = {
-    {100, 199},
-    {300, 399},
-    {0, 99},
-    {200, 299},
-    {600, 699},
-    {400, 499},
-    {500, 550},
-    {551, 599},
+      {100, 199}, {300, 399}, {0, 99},    {200, 299},
+      {600, 699}, {400, 499}, {500, 550}, {551, 599},
   };
   int32_t value_size = 10 * 1024;  // 10 KB
 
@@ -1310,7 +1296,8 @@ TEST_P(DBCompactionTestWithParam, TrivialMoveNonOverlappingFiles) {
       {200, 299},
       {600, 699},
       {400, 499},
-    {500, 560},  // this range overlap with the next one
+      {500, 560},  // this range overlap with the next
+                   // one
       {551, 599},
   };
   for (size_t i = 0; i < ranges.size(); i++) {
@@ -2736,7 +2723,6 @@ TEST_P(DBCompactionTestWithParam, ManualCompaction) {
   }
 }
 
-
 TEST_P(DBCompactionTestWithParam, ManualLevelCompactionOutputPathId) {
   Options options = CurrentOptions();
   options.db_paths.emplace_back(dbname_ + "_2", 2 * 10485760);
@@ -2873,12 +2859,11 @@ TEST_P(DBCompactionTestWithParam, DISABLED_CompactFilesOnLevelCompaction) {
       auto file_meta = PickFileRandomly(cf_meta, &rnd, &level);
       compaction_input_file_names.push_back(file_meta->name);
       GetOverlappingFileNumbersForLevelCompaction(
-          cf_meta, options.comparator, level, output_level,
-          file_meta, &overlapping_file_names);
+          cf_meta, options.comparator, level, output_level, file_meta,
+          &overlapping_file_names);
     }
 
-    ASSERT_OK(dbfull()->CompactFiles(
-        CompactionOptions(), handles_[1],
+    ASSERT_OK(dbfull()->CompactFiles(CompactionOptions(), handles_[1],
                                      compaction_input_file_names,
                                      output_level));
 
@@ -2903,8 +2888,7 @@ TEST_P(DBCompactionTestWithParam, PartialCompactionFailure) {
   options.write_buffer_size = kKeysPerBuffer * kKvSize;
   options.max_write_buffer_number = 2;
   options.target_file_size_base =
-      options.write_buffer_size *
-      (options.max_write_buffer_number - 1);
+      options.write_buffer_size * (options.max_write_buffer_number - 1);
   options.level0_file_num_compaction_trigger = kNumL1Files;
   options.max_bytes_for_level_base =
       options.level0_file_num_compaction_trigger *
@@ -2924,8 +2908,7 @@ TEST_P(DBCompactionTestWithParam, PartialCompactionFailure) {
 
   DestroyAndReopen(options);
 
-  const int kNumInsertedKeys =
-      options.level0_file_num_compaction_trigger *
+  const int kNumInsertedKeys = options.level0_file_num_compaction_trigger *
                                (options.max_write_buffer_number - 1) *
                                kKeysPerBuffer;
 
@@ -3625,8 +3608,7 @@ TEST_F(DBCompactionTest, CompactFilesPendingL0Bug) {
   ASSERT_EQ(kNumL0Files, cf_meta.levels[0].files.size());
   std::vector<std::string> input_filenames;
   input_filenames.push_back(cf_meta.levels[0].files.front().name);
-  ASSERT_OK(dbfull()
-                  ->CompactFiles(CompactionOptions(), input_filenames,
+  ASSERT_OK(dbfull()->CompactFiles(CompactionOptions(), input_filenames,
                                    0 /* output_level */));
   TEST_SYNC_POINT("DBCompactionTest::CompactFilesPendingL0Bug:ManualCompacted");
   ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
@@ -4953,7 +4935,8 @@ TEST_F(DBCompactionTest, CompactRangeSkipFlushAfterDelay) {
   ASSERT_OK(Put(std::to_string(0), rnd.RandomString(1024)));
   ASSERT_OK(dbfull()->Flush(flush_opts));
   ASSERT_OK(Put(std::to_string(0), rnd.RandomString(1024)));
-  TEST_SYNC_POINT("DBCompactionTest::CompactRangeSkipFlushAfterDelay:PostFlush");
+  TEST_SYNC_POINT(
+      "DBCompactionTest::CompactRangeSkipFlushAfterDelay:PostFlush");
   manual_compaction_thread.join();
 
   // If CompactRange's flush was skipped, the final Put above will still be
@@ -5248,8 +5231,8 @@ TEST_F(DBCompactionTest, CompactionLimiter) {
   std::shared_ptr<ConcurrentTaskLimiter> unique_limiter(
       NewConcurrentTaskLimiter("unique_limiter", -1));
 
-  const char* cf_names[] = {"default", "0", "1", "2", "3", "4", "5",
-    "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };
+  const char* cf_names[] = {"default", "0", "1", "2", "3", "4", "5", "6", "7",
+                            "8",       "9", "a", "b", "c", "d", "e", "f"};
   const unsigned int cf_count = sizeof cf_names / sizeof cf_names[0];
 
   std::unordered_map<std::string, CompactionLimiter*> cf_to_limiter;
@@ -5292,9 +5275,8 @@ TEST_F(DBCompactionTest, CompactionLimiter) {
     CreateColumnFamilies({cf_names[cf]}, option_vector[cf]);
   }
 
-  ReopenWithColumnFamilies(std::vector<std::string>(cf_names,
-                                                    cf_names + cf_count),
-                           option_vector);
+  ReopenWithColumnFamilies(
+      std::vector<std::string>(cf_names, cf_names + cf_count), option_vector);
 
   port::Mutex mutex;
 
@@ -5434,9 +5416,7 @@ TEST_P(DBCompactionDirectIOTest, DirectIO) {
       });
   if (options.use_direct_io_for_flush_and_compaction) {
     SyncPoint::GetInstance()->SetCallBack(
-        "SanitizeOptions:direct_io", [&](void* /*arg*/) {
-          readahead = true;
-        });
+        "SanitizeOptions:direct_io", [&](void* /*arg*/) { readahead = true; });
   }
   SyncPoint::GetInstance()->EnableProcessing();
   CreateAndReopenWithCF({"pikachu"}, options);

db/db_filesnapshot.cc

@@ -65,8 +65,7 @@ Status DBImpl::FlushForGetLiveFiles() {
 }
 
 Status DBImpl::GetLiveFiles(std::vector<std::string>& ret,
-                            uint64_t* manifest_file_size,
-                            bool flush_memtable) {
+                            uint64_t* manifest_file_size, bool flush_memtable) {
   *manifest_file_size = 0;
 
   mutex_.Lock();

db/db_flush_test.cc

@@ -1822,8 +1822,8 @@ TEST_F(DBFlushTest, ManualFlushFailsInReadOnlyMode) {
   ASSERT_NOK(dbfull()->TEST_WaitForFlushMemTable());
 #ifndef ROCKSDB_LITE
   uint64_t num_bg_errors;
-  ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kBackgroundErrors,
-                                  &num_bg_errors));
+  ASSERT_TRUE(
+      db_->GetIntProperty(DB::Properties::kBackgroundErrors, &num_bg_errors));
   ASSERT_GT(num_bg_errors, 0);
 #endif  // ROCKSDB_LITE
 

db/db_info_dumper.cc

@@ -6,6 +6,7 @@
 #include "db/db_info_dumper.h"
 
 #include <stdio.h>
+
 #include <algorithm>
 #include <cinttypes>
 #include <string>

db/db_iter_stress_test.cc

@@ -392,7 +392,7 @@ struct ReferenceIterator {
   }
 };
 
-}  // namespace
+}  // anonymous namespace
 
 // Use an internal iterator that sometimes returns errors and sometimes
 // adds/removes entries on the fly. Do random operations on a DBIter and
@@ -482,12 +482,11 @@ TEST_F(DBIteratorStressTest, StressTest) {
                 std::cout << "entries:";
                 for (size_t i = 0; i < data.entries.size(); ++i) {
                   Entry& e = data.entries[i];
-                  std::cout
-                      << "\n  idx " << i << ": \"" << e.key << "\": \""
+                  std::cout << "\n  idx " << i << ": \"" << e.key << "\": \""
                             << e.value << "\" seq: " << e.sequence << " type: "
-                      << (e.type == kTypeValue
-                              ? "val"
-                              : e.type == kTypeDeletion ? "del" : "merge");
+                            << (e.type == kTypeValue      ? "val"
+                                : e.type == kTypeDeletion ? "del"
+                                                          : "merge");
                 }
                 std::cout << std::endl;
               }

db/db_iter_test.cc

@@ -3,12 +3,13 @@
 //  COPYING file in the root directory) and Apache 2.0 License
 //  (found in the LICENSE.Apache file in the root directory).
 
-#include <string>
-#include <vector>
+#include "db/db_iter.h"
+
 #include <algorithm>
+#include <string>
 #include <utility>
+#include <vector>
 
-#include "db/db_iter.h"
 #include "db/dbformat.h"
 #include "rocksdb/comparator.h"
 #include "rocksdb/options.h"
@@ -429,7 +430,8 @@ TEST_F(DBIteratorTest, DBIteratorPrevNext) {
     db_iter->SeekToLast();
 
     ASSERT_TRUE(db_iter->Valid());
-    ASSERT_EQ(static_cast<int>(get_perf_context()->internal_key_skipped_count), 1);
+    ASSERT_EQ(static_cast<int>(get_perf_context()->internal_key_skipped_count),
+              1);
     ASSERT_EQ(db_iter->key().ToString(), "b");
 
     SetPerfLevel(kDisable);
@@ -557,7 +559,8 @@ TEST_F(DBIteratorTest, DBIteratorPrevNext) {
     db_iter->SeekToLast();
 
     ASSERT_TRUE(db_iter->Valid());
-    ASSERT_EQ(static_cast<int>(get_perf_context()->internal_delete_skipped_count), 0);
+    ASSERT_EQ(
+        static_cast<int>(get_perf_context()->internal_delete_skipped_count), 0);
     ASSERT_EQ(db_iter->key().ToString(), "b");
 
     SetPerfLevel(kDisable);
@@ -3013,7 +3016,6 @@ TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace8) {
   ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
 }
 
-
 TEST_F(DBIteratorTest, SeekPrefixTombstones) {
   ReadOptions ro;
   Options options;

db/db_iterator_test.cc

@@ -236,7 +236,7 @@ namespace {
 std::string MakeLongKey(size_t length, char c) {
   return std::string(length, c);
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_P(DBIteratorTest, IterLongKeys) {
   ASSERT_OK(Put(MakeLongKey(20, 0), "0"));
@@ -1037,7 +1037,8 @@ TEST_P(DBIteratorTest, DBIteratorBoundTest) {
     iter->Next();
 
     ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(static_cast<int>(get_perf_context()->internal_delete_skipped_count), 2);
+    ASSERT_EQ(
+        static_cast<int>(get_perf_context()->internal_delete_skipped_count), 2);
 
     // now testing with iterate_bound
     Slice prefix("c");
@@ -1060,7 +1061,8 @@ TEST_P(DBIteratorTest, DBIteratorBoundTest) {
     // even though the key is deleted
     // hence internal_delete_skipped_count should be 0
     ASSERT_TRUE(!iter->Valid());
-    ASSERT_EQ(static_cast<int>(get_perf_context()->internal_delete_skipped_count), 0);
+    ASSERT_EQ(
+        static_cast<int>(get_perf_context()->internal_delete_skipped_count), 0);
   }
 }
 
@@ -2180,8 +2182,8 @@ TEST_P(DBIteratorTest, IteratorWithLocalStatistics) {
   ASSERT_EQ(TestGetTickerCount(options, NUMBER_DB_PREV), (uint64_t)total_prev);
   ASSERT_EQ(TestGetTickerCount(options, NUMBER_DB_PREV_FOUND),
             (uint64_t)total_prev_found);
-  ASSERT_EQ(TestGetTickerCount(options, ITER_BYTES_READ), (uint64_t)total_bytes);
-
+  ASSERT_EQ(TestGetTickerCount(options, ITER_BYTES_READ),
+            (uint64_t)total_bytes);
 }
 
 TEST_P(DBIteratorTest, ReadAhead) {
@@ -2310,8 +2312,8 @@ TEST_P(DBIteratorTest, DBIteratorSkipRecentDuplicatesTest) {
   EXPECT_EQ(get_perf_context()->internal_merge_count, 0);
   EXPECT_GE(get_perf_context()->internal_recent_skipped_count, 2);
   EXPECT_GE(get_perf_context()->seek_on_memtable_count, 2);
-  EXPECT_EQ(1, options.statistics->getTickerCount(
-                 NUMBER_OF_RESEEKS_IN_ITERATION));
+  EXPECT_EQ(1,
+            options.statistics->getTickerCount(NUMBER_OF_RESEEKS_IN_ITERATION));
 }
 
 TEST_P(DBIteratorTest, Refresh) {

db/db_log_iter_test.cc

@@ -55,14 +55,13 @@ SequenceNumber ReadRecords(std::unique_ptr<TransactionLogIterator>& iter,
   return res.sequence;
 }
 
-void ExpectRecords(
-    const int expected_no_records,
+void ExpectRecords(const int expected_no_records,
                    std::unique_ptr<TransactionLogIterator>& iter) {
   int num_records;
   ReadRecords(iter, num_records);
   ASSERT_EQ(num_records, expected_no_records);
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTestXactLogIterator, TransactionLogIterator) {
   do {
@@ -97,8 +96,7 @@ TEST_F(DBTestXactLogIterator, TransactionLogIteratorRace) {
   static const char* sync_points[LOG_ITERATOR_RACE_TEST_COUNT][4] = {
       {"WalManager::GetSortedWalFiles:1", "WalManager::PurgeObsoleteFiles:1",
        "WalManager::PurgeObsoleteFiles:2", "WalManager::GetSortedWalFiles:2"},
-      {"WalManager::GetSortedWalsOfType:1",
-       "WalManager::PurgeObsoleteFiles:1",
+      {"WalManager::GetSortedWalsOfType:1", "WalManager::PurgeObsoleteFiles:1",
        "WalManager::PurgeObsoleteFiles:2",
        "WalManager::GetSortedWalsOfType:2"}};
   for (int test = 0; test < LOG_ITERATOR_RACE_TEST_COUNT; ++test) {

db/db_logical_block_size_cache_test.cc

@@ -224,8 +224,8 @@ TEST_F(DBLogicalBlockSizeCacheTest, CreateColumnFamilies) {
   // Now cf_path_0_ in cache_ has been properly decreased and cf_path_0_'s entry
   // is dropped from cache
   ASSERT_EQ(0, cache_->Size());
-  ASSERT_OK(DestroyDB(dbname_, options,
-      {{"cf1", cf_options}, {"cf2", cf_options}}));
+  ASSERT_OK(
+      DestroyDB(dbname_, options, {{"cf1", cf_options}, {"cf2", cf_options}}));
 }
 
 TEST_F(DBLogicalBlockSizeCacheTest, OpenWithColumnFamilies) {
@@ -313,8 +313,8 @@ TEST_F(DBLogicalBlockSizeCacheTest, OpenWithColumnFamilies) {
     delete db;
     ASSERT_EQ(0, cache_->Size());
   }
-  ASSERT_OK(DestroyDB(dbname_, options,
-      {{"cf1", cf_options}, {"cf2", cf_options}}));
+  ASSERT_OK(
+      DestroyDB(dbname_, options, {{"cf1", cf_options}, {"cf2", cf_options}}));
 }
 
 TEST_F(DBLogicalBlockSizeCacheTest, DestroyColumnFamilyHandle) {

db/db_merge_operand_test.cc

@@ -39,7 +39,7 @@ class LimitedStringAppendMergeOp : public StringAppendTESTOperator {
  private:
   size_t limit_ = 0;
 };
-}  // namespace
+}  // anonymous namespace
 
 class DBMergeOperandTest : public DBTestBase {
  public:

db/db_merge_operator_test.cc

@@ -84,8 +84,7 @@ TEST_F(DBMergeOperatorTest, LimitMergeOperands) {
   Options options;
   options.create_if_missing = true;
   // Use only the latest two merge operands.
-  options.merge_operator =
-      std::make_shared<LimitedStringAppendMergeOp>(2, ',');
+  options.merge_operator = std::make_shared<LimitedStringAppendMergeOp>(2, ',');
   options.env = env_;
   Reopen(options);
   // All K1 values are in memtable.
@@ -203,7 +202,6 @@ TEST_F(DBMergeOperatorTest, MergeErrorOnIteration) {
   VerifyDBInternal({{"k1", "v1"}, {"k2", "corrupted"}, {"k2", "v2"}});
 }
 
-
 class MergeOperatorPinningTest : public DBMergeOperatorTest,
                                  public testing::WithParamInterface<bool> {
  public:

db/db_options_test.cc

@@ -627,7 +627,6 @@ TEST_F(DBOptionsTest, SetBackgroundFlushThreads) {
   ASSERT_EQ(3, dbfull()->TEST_BGFlushesAllowed());
 }
 
-
 TEST_F(DBOptionsTest, SetBackgroundJobs) {
   Options options;
   options.create_if_missing = true;
@@ -691,7 +690,8 @@ TEST_F(DBOptionsTest, SetDelayedWriteRateOption) {
   options.delayed_write_rate = 2 * 1024U * 1024U;
   options.env = env_;
   Reopen(options);
-  ASSERT_EQ(2 * 1024U * 1024U, dbfull()->TEST_write_controler().max_delayed_write_rate());
+  ASSERT_EQ(2 * 1024U * 1024U,
+            dbfull()->TEST_write_controler().max_delayed_write_rate());
 
   ASSERT_OK(dbfull()->SetDBOptions({{"delayed_write_rate", "20000"}}));
   ASSERT_EQ(20000, dbfull()->TEST_write_controler().max_delayed_write_rate());

db/db_properties_test.cc

@@ -270,7 +270,8 @@ void GetExpectedTableProperties(
   const int kDeletionCount = kTableCount * kDeletionsPerTable;
   const int kMergeCount = kTableCount * kMergeOperandsPerTable;
   const int kRangeDeletionCount = kTableCount * kRangeDeletionsPerTable;
-  const int kKeyCount = kPutCount + kDeletionCount + kMergeCount + kRangeDeletionCount;
+  const int kKeyCount =
+      kPutCount + kDeletionCount + kMergeCount + kRangeDeletionCount;
   const int kAvgSuccessorSize = kKeySize / 5;
   const int kEncodingSavePerKey = kKeySize / 4;
   expected_tp->raw_key_size = kKeyCount * (kKeySize + 8);
@@ -281,7 +282,8 @@ void GetExpectedTableProperties(
   expected_tp->num_merge_operands = kMergeCount;
   expected_tp->num_range_deletions = kRangeDeletionCount;
   expected_tp->num_data_blocks =
-      kTableCount * (kKeysPerTable * (kKeySize - kEncodingSavePerKey + kValueSize)) /
+      kTableCount *
+      (kKeysPerTable * (kKeySize - kEncodingSavePerKey + kValueSize)) /
       kBlockSize;
   expected_tp->data_size =
       kTableCount * (kKeysPerTable * (kKeySize + 8 + kValueSize));
@@ -1120,7 +1122,8 @@ class CountingUserTblPropCollector : public TablePropertiesCollector {
     std::string encoded;
     PutVarint32(&encoded, count_);
     *properties = UserCollectedProperties{
-        {"CountingUserTblPropCollector", message_}, {"Count", encoded},
+        {"CountingUserTblPropCollector", message_},
+        {"Count", encoded},
     };
     return Status::OK();
   }
@@ -2122,7 +2125,7 @@ std::string PopMetaIndexKey(InternalIterator* meta_iter) {
   }
 }
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBPropertiesTest, TableMetaIndexKeys) {
   // This is to detect unexpected churn in metaindex block keys. This is more

db/db_range_del_test.cc

@@ -238,7 +238,8 @@ TEST_F(DBRangeDelTest, SentinelsOmittedFromOutputFile) {
   const Snapshot* snapshot = db_->GetSnapshot();
 
   // gaps between ranges creates sentinels in our internal representation
-  std::vector<std::pair<std::string, std::string>> range_dels = {{"a", "b"}, {"c", "d"}, {"e", "f"}};
+  std::vector<std::pair<std::string, std::string>> range_dels = {
+      {"a", "b"}, {"c", "d"}, {"e", "f"}};
   for (const auto& range_del : range_dels) {
     ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
                                range_del.first, range_del.second));
@@ -567,8 +568,8 @@ TEST_F(DBRangeDelTest, PutDeleteRangeMergeFlush) {
   std::string val;
   PutFixed64(&val, 1);
   ASSERT_OK(db_->Put(WriteOptions(), "key", val));
-  ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                             "key", "key_"));
+  ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "key",
+                             "key_"));
   ASSERT_OK(db_->Merge(WriteOptions(), "key", val));
   ASSERT_OK(db_->Flush(FlushOptions()));
 
@@ -1649,7 +1650,8 @@ TEST_F(DBRangeDelTest, RangeTombstoneWrittenToMinimalSsts) {
     const auto& table_props = name_and_table_props.second;
     // The range tombstone should only be output to the second L1 SST.
     if (name.size() >= l1_metadata[1].name.size() &&
-        name.substr(name.size() - l1_metadata[1].name.size()).compare(l1_metadata[1].name) == 0) {
+        name.substr(name.size() - l1_metadata[1].name.size())
+                .compare(l1_metadata[1].name) == 0) {
       ASSERT_EQ(1, table_props->num_range_deletions);
       ++num_range_deletions;
     } else {

db/db_secondary_test.cc

@@ -499,7 +499,7 @@ class TraceFileEnv : public EnvWrapper {
  private:
   std::atomic<int> files_closed_{0};
 };
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBSecondaryTest, SecondaryCloseFiles) {
   Options options;

db/db_statistics_test.cc

@@ -80,14 +80,16 @@ TEST_F(DBStatisticsTest, CompressionStatsTest) {
     ASSERT_OK(Put(Key(i), rnd.RandomString(128) + std::string(128, 'a')));
   }
   ASSERT_OK(Flush());
-  ASSERT_EQ(options.statistics->getTickerCount(NUMBER_BLOCK_COMPRESSED)
-            - currentCompressions, 0);
+  ASSERT_EQ(options.statistics->getTickerCount(NUMBER_BLOCK_COMPRESSED) -
+                currentCompressions,
+            0);
 
   for (int i = 0; i < kNumKeysWritten; ++i) {
     auto r = Get(Key(i));
   }
-  ASSERT_EQ(options.statistics->getTickerCount(NUMBER_BLOCK_DECOMPRESSED)
-            - currentDecompressions, 0);
+  ASSERT_EQ(options.statistics->getTickerCount(NUMBER_BLOCK_DECOMPRESSED) -
+                currentDecompressions,
+            0);
 }
 
 TEST_F(DBStatisticsTest, MutexWaitStatsDisabledByDefault) {

db/db_table_properties_test.cc

@@ -52,7 +52,7 @@ void VerifyTableProperties(DB* db, uint64_t expected_entries_size) {
 
   VerifySstUniqueIds(props);
 }
-}  // namespace
+}  // anonymous namespace
 
 class DBTablePropertiesTest : public DBTestBase,
                               public testing::WithParamInterface<std::string> {
@@ -240,7 +240,6 @@ TablePropertiesCollection
 DBTablePropertiesTest::TestGetPropertiesOfTablesInRange(
     std::vector<Range> ranges, std::size_t* num_properties,
     std::size_t* num_files) {
-
   // Since we deref zero element in the vector it can not be empty
   // otherwise we pass an address to some random memory
   EXPECT_GT(ranges.size(), 0U);
@@ -524,10 +523,10 @@ TEST_P(DBTablePropertiesTest, DeletionTriggeredCompactionMarking) {
   // effect
   kWindowSize = 50;
   kNumDelsTrigger = 40;
-  static_cast<CompactOnDeletionCollectorFactory*>
-    (compact_on_del.get())->SetWindowSize(kWindowSize);
-  static_cast<CompactOnDeletionCollectorFactory*>
-    (compact_on_del.get())->SetDeletionTrigger(kNumDelsTrigger);
+  static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
+      ->SetWindowSize(kWindowSize);
+  static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
+      ->SetDeletionTrigger(kNumDelsTrigger);
   for (int i = 0; i < kNumKeys; ++i) {
     if (i >= kNumKeys - kWindowSize &&
         i < kNumKeys - kWindowSize + kNumDelsTrigger) {
@@ -543,10 +542,10 @@ TEST_P(DBTablePropertiesTest, DeletionTriggeredCompactionMarking) {
 
   // Change the window size to disable delete triggered compaction
   kWindowSize = 0;
-  static_cast<CompactOnDeletionCollectorFactory*>
-    (compact_on_del.get())->SetWindowSize(kWindowSize);
-  static_cast<CompactOnDeletionCollectorFactory*>
-    (compact_on_del.get())->SetDeletionTrigger(kNumDelsTrigger);
+  static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
+      ->SetWindowSize(kWindowSize);
+  static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
+      ->SetDeletionTrigger(kNumDelsTrigger);
   for (int i = 0; i < kNumKeys; ++i) {
     if (i >= kNumKeys - kWindowSize &&
         i < kNumKeys - kWindowSize + kNumDelsTrigger) {
@@ -611,13 +610,9 @@ TEST_P(DBTablePropertiesTest, RatioBasedDeletionTriggeredCompactionMarking) {
   }
 }
 
-INSTANTIATE_TEST_CASE_P(
-    DBTablePropertiesTest,
-    DBTablePropertiesTest,
-    ::testing::Values(
-      "kCompactionStyleLevel",
-      "kCompactionStyleUniversal"
-      ));
+INSTANTIATE_TEST_CASE_P(DBTablePropertiesTest, DBTablePropertiesTest,
+                        ::testing::Values("kCompactionStyleLevel",
+                                          "kCompactionStyleUniversal"));
 
 }  // namespace ROCKSDB_NAMESPACE
 

db/db_tailing_iter_test.cc

@@ -539,7 +539,6 @@ TEST_P(DBTestTailingIterator, SeekWithUpperBoundBug) {
   const Slice upper_bound("cc", 3);
   read_options.iterate_upper_bound = &upper_bound;
 
-
   // 1st L0 file
   ASSERT_OK(db_->Put(WriteOptions(), "aa", "SEEN"));
   ASSERT_OK(Flush());
@@ -565,7 +564,6 @@ TEST_P(DBTestTailingIterator, SeekToFirstWithUpperBoundBug) {
   const Slice upper_bound("cc", 3);
   read_options.iterate_upper_bound = &upper_bound;
 
-
   // 1st L0 file
   ASSERT_OK(db_->Put(WriteOptions(), "aa", "SEEN"));
   ASSERT_OK(Flush());

db/db_test.cc

@@ -1135,7 +1135,7 @@ class DelayFilterFactory : public CompactionFilterFactory {
  private:
   DBTestBase* db_test;
 };
-}  // namespace
+}  // anonymous namespace
 
 #ifndef ROCKSDB_LITE
 
@@ -1490,7 +1490,7 @@ bool MinLevelToCompress(CompressionType& type, Options& options, int wbits,
   }
   return true;
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTest, MinLevelToCompress1) {
   Options options = CurrentOptions();
@@ -2843,7 +2843,7 @@ static void MTThreadBody(void* arg) {
   fprintf(stderr, "... stopping thread %d after %d ops\n", id, int(counter));
 }
 
-}  // namespace
+}  // anonymous namespace
 
 class MultiThreadedDBTest
     : public DBTest,
@@ -2929,7 +2929,7 @@ static void GCThreadBody(void* arg) {
   t->done = true;
 }
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTest, GroupCommitTest) {
   do {
@@ -4645,7 +4645,7 @@ void VerifyOperationCount(Env* env, ThreadStatus::OperationType op_type,
   }
   ASSERT_EQ(op_count, expected_count);
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTest, GetThreadStatus) {
   Options options;

db/db_test2.cc

@@ -691,7 +691,7 @@ namespace {
   }
 }
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTest2, WalFilterTest) {
   class TestWalFilter : public WalFilter {
@@ -719,8 +719,7 @@ TEST_F(DBTest2, WalFilterTest) {
 
       if (current_record_index_ == apply_option_at_record_index_) {
         option_to_return = wal_processing_option_;
-      }
-      else {
+      } else {
         option_to_return = WalProcessingOption::kContinueProcessing;
       }
 
@@ -784,8 +783,7 @@ TEST_F(DBTest2, WalFilterTest) {
       // databse
       options.paranoid_checks = false;
       ReopenWithColumnFamilies({"default", "pikachu"}, options);
-    }
-    else {
+    } else {
       ASSERT_OK(status);
     }
 
@@ -815,8 +813,7 @@ TEST_F(DBTest2, WalFilterTest) {
           for (size_t j = 0; j < batch_keys[i].size(); j++) {
             if (i == apply_option_for_record_index) {
               keys_must_not_exist.push_back(Slice(batch_keys[i][j]));
-          }
-          else {
+            } else {
               keys_must_exist.push_back(Slice(batch_keys[i][j]));
             }
           }
@@ -834,8 +831,7 @@ TEST_F(DBTest2, WalFilterTest) {
           for (size_t j = 0; j < batch_keys[i].size(); j++) {
             if (i >= apply_option_for_record_index) {
               keys_must_not_exist.push_back(Slice(batch_keys[i][j]));
-          }
-          else {
+            } else {
               keys_must_exist.push_back(Slice(batch_keys[i][j]));
             }
           }
@@ -977,8 +973,7 @@ TEST_F(DBTest2, WalFilterTestWithChangeBatch) {
     for (size_t j = 0; j < batch_keys[i].size(); j++) {
       if (i >= change_records_from_index && j >= num_keys_to_add_in_new_batch) {
         keys_must_not_exist.push_back(Slice(batch_keys[i][j]));
-      }
-      else {
+      } else {
         keys_must_exist.push_back(Slice(batch_keys[i][j]));
       }
     }
@@ -1008,7 +1003,8 @@ TEST_F(DBTest2, WalFilterTestWithChangeBatch) {
 TEST_F(DBTest2, WalFilterTestWithChangeBatchExtraKeys) {
   class TestWalFilterWithChangeBatchAddExtraKeys : public WalFilter {
    public:
-   WalProcessingOption LogRecord(const WriteBatch& batch, WriteBatch* new_batch,
+    WalProcessingOption LogRecord(const WriteBatch& batch,
+                                  WriteBatch* new_batch,
                                   bool* batch_changed) const override {
       *new_batch = batch;
       Status s = new_batch->Put("key_extra", "value_extra");
@@ -1085,6 +1081,7 @@ TEST_F(DBTest2, WalFilterTestWithColumnFamilies) {
     // during recovery (i.e. aren't already flushed to SST file(s))
     // for verification against the keys we expect.
     std::map<uint32_t, std::vector<std::string>> cf_wal_keys_;
+
    public:
     void ColumnFamilyLogNumberMap(
         const std::map<uint32_t, uint64_t>& cf_lognumber_map,
@@ -1103,11 +1100,13 @@ TEST_F(DBTest2, WalFilterTestWithColumnFamilies) {
         const std::map<uint32_t, uint64_t>& cf_log_number_map_;
         std::map<uint32_t, std::vector<std::string>>& cf_wal_keys_;
         unsigned long long log_number_;
+
        public:
-        LogRecordBatchHandler(unsigned long long current_log_number,
+        LogRecordBatchHandler(
+            unsigned long long current_log_number,
             const std::map<uint32_t, uint64_t>& cf_log_number_map,
-          std::map<uint32_t, std::vector<std::string>> & cf_wal_keys) :
-          cf_log_number_map_(cf_log_number_map),
+            std::map<uint32_t, std::vector<std::string>>& cf_wal_keys)
+            : cf_log_number_map_(cf_log_number_map),
               cf_wal_keys_(cf_wal_keys),
               log_number_(current_log_number) {}
 
@@ -1120,8 +1119,8 @@ TEST_F(DBTest2, WalFilterTestWithColumnFamilies) {
           // (i.e. isn't flushed to SST file(s) for column_family_id)
           // add it to the cf_wal_keys_ map for verification.
           if (log_number_ >= log_number_for_cf) {
-            cf_wal_keys_[column_family_id].push_back(std::string(key.data(),
-              key.size()));
+            cf_wal_keys_[column_family_id].push_back(
+                std::string(key.data(), key.size()));
           }
           return Status::OK();
         }
@@ -1208,8 +1207,7 @@ TEST_F(DBTest2, WalFilterTestWithColumnFamilies) {
   // Reopen database with option to use WAL filter
   options = OptionsForLogIterTest();
   options.wal_filter = &test_wal_filter_column_families;
-  Status status =
-    TryReopenWithColumnFamilies({ "default", "pikachu" }, options);
+  Status status = TryReopenWithColumnFamilies({"default", "pikachu"}, options);
   ASSERT_TRUE(status.ok());
 
   // verify that handles_[0] only has post_flush keys
@@ -1960,7 +1958,8 @@ TEST_F(DBTest2, CompressionOptions) {
 
 class CompactionStallTestListener : public EventListener {
  public:
-  CompactionStallTestListener() : compacting_files_cnt_(0), compacted_files_cnt_(0) {}
+  CompactionStallTestListener()
+      : compacting_files_cnt_(0), compacted_files_cnt_(0) {}
 
   void OnCompactionBegin(DB* /*db*/, const CompactionJobInfo& ci) override {
     ASSERT_EQ(ci.cf_name, "default");
@@ -2039,7 +2038,8 @@ TEST_F(DBTest2, CompactionStall) {
             options.level0_file_num_compaction_trigger);
   ASSERT_GT(listener->compacted_files_cnt_.load(),
             10 - options.level0_file_num_compaction_trigger);
-  ASSERT_EQ(listener->compacting_files_cnt_.load(), listener->compacted_files_cnt_.load());
+  ASSERT_EQ(listener->compacting_files_cnt_.load(),
+            listener->compacted_files_cnt_.load());
 
   ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
 }
@@ -2664,7 +2664,7 @@ namespace {
 void CountSyncPoint() {
   TEST_SYNC_POINT_CALLBACK("DBTest2::MarkedPoint", nullptr /* arg */);
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTest2, SyncPointMarker) {
   std::atomic<int> sync_point_called(0);
@@ -2899,7 +2899,6 @@ TEST_F(DBTest2, ReadAmpBitmapLiveInCacheAfterDBClose) {
     size_t total_loaded_bytes_iter2 =
         options.statistics->getTickerCount(READ_AMP_TOTAL_READ_BYTES);
 
-
     // Read amp is on average 100% since we read all what we loaded in memory
     if (k == 0) {
       ASSERT_EQ(total_useful_bytes_iter1 + total_useful_bytes_iter2,
@@ -5503,16 +5502,20 @@ TEST_F(DBTest2, TestGetColumnFamilyHandleUnlocked) {
   port::Thread user_thread1([&]() {
     auto cfh = dbi->GetColumnFamilyHandleUnlocked(handles_[0]->GetID());
     ASSERT_EQ(cfh->GetID(), handles_[0]->GetID());
-    TEST_SYNC_POINT("TestGetColumnFamilyHandleUnlocked::GetColumnFamilyHandleUnlocked1");
-    TEST_SYNC_POINT("TestGetColumnFamilyHandleUnlocked::ReadColumnFamilyHandle1");
+    TEST_SYNC_POINT(
+        "TestGetColumnFamilyHandleUnlocked::GetColumnFamilyHandleUnlocked1");
+    TEST_SYNC_POINT(
+        "TestGetColumnFamilyHandleUnlocked::ReadColumnFamilyHandle1");
     ASSERT_EQ(cfh->GetID(), handles_[0]->GetID());
   });
 
   port::Thread user_thread2([&]() {
-    TEST_SYNC_POINT("TestGetColumnFamilyHandleUnlocked::PreGetColumnFamilyHandleUnlocked2");
+    TEST_SYNC_POINT(
+        "TestGetColumnFamilyHandleUnlocked::PreGetColumnFamilyHandleUnlocked2");
     auto cfh = dbi->GetColumnFamilyHandleUnlocked(handles_[1]->GetID());
     ASSERT_EQ(cfh->GetID(), handles_[1]->GetID());
-    TEST_SYNC_POINT("TestGetColumnFamilyHandleUnlocked::GetColumnFamilyHandleUnlocked2");
+    TEST_SYNC_POINT(
+        "TestGetColumnFamilyHandleUnlocked::GetColumnFamilyHandleUnlocked2");
     ASSERT_EQ(cfh->GetID(), handles_[1]->GetID());
   });
 
@@ -5666,7 +5669,7 @@ class DummyOldStats : public Statistics {
   std::atomic<int> num_rt{0};
   std::atomic<int> num_mt{0};
 };
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(DBTest2, OldStatsInterface) {
   DummyOldStats* dos = new DummyOldStats();

db/db_test_util.cc

@@ -29,7 +29,7 @@ int64_t MaybeCurrentTime(Env* env) {
   env->GetCurrentTime(&time).PermitUncheckedError();
   return time;
 }
-}  // namespace
+}  // anonymous namespace
 
 // Special Env used to delay background operations
 
@@ -1308,12 +1308,14 @@ void DBTestBase::GetSstFiles(Env* env, std::string path,
                              std::vector<std::string>* files) {
   EXPECT_OK(env->GetChildren(path, files));
 
-  files->erase(
-      std::remove_if(files->begin(), files->end(), [](std::string name) {
+  files->erase(std::remove_if(files->begin(), files->end(),
+                              [](std::string name) {
                                 uint64_t number;
                                 FileType type;
-        return !(ParseFileName(name, &number, &type) && type == kTableFile);
-      }), files->end());
+                                return !(ParseFileName(name, &number, &type) &&
+                                         type == kTableFile);
+                              }),
+               files->end());
 }
 
 int DBTestBase::GetSstFileCount(std::string path) {
@@ -1583,8 +1585,8 @@ void DBTestBase::VerifyDBFromMap(std::map<std::string, std::string> true_data,
       iter_cnt++;
       total_reads++;
     }
-    ASSERT_EQ(data_iter, true_data.end()) << iter_cnt << " / "
-                                          << true_data.size();
+    ASSERT_EQ(data_iter, true_data.end())
+        << iter_cnt << " / " << true_data.size();
     delete iter;
 
     // Verify Iterator::Prev()
@@ -1606,8 +1608,8 @@ void DBTestBase::VerifyDBFromMap(std::map<std::string, std::string> true_data,
       iter_cnt++;
       total_reads++;
     }
-    ASSERT_EQ(data_rev, true_data.rend()) << iter_cnt << " / "
-                                          << true_data.size();
+    ASSERT_EQ(data_rev, true_data.rend())
+        << iter_cnt << " / " << true_data.size();
 
     // Verify Iterator::Seek()
     for (auto kv : true_data) {
@@ -1637,8 +1639,8 @@ void DBTestBase::VerifyDBFromMap(std::map<std::string, std::string> true_data,
       iter_cnt++;
       total_reads++;
     }
-    ASSERT_EQ(data_iter, true_data.end()) << iter_cnt << " / "
-                                          << true_data.size();
+    ASSERT_EQ(data_iter, true_data.end())
+        << iter_cnt << " / " << true_data.size();
 
     // Verify ForwardIterator::Seek()
     for (auto kv : true_data) {

db/db_test_util.h

@@ -220,9 +220,7 @@ class SpecialEnv : public EnvWrapper {
       Env::IOPriority GetIOPriority() override {
         return base_->GetIOPriority();
       }
-      bool use_direct_io() const override {
-        return base_->use_direct_io();
-      }
+      bool use_direct_io() const override { return base_->use_direct_io(); }
       Status Allocate(uint64_t offset, uint64_t len) override {
         return base_->Allocate(offset, len);
       }

db/db_universal_compaction_test.cc

@@ -39,8 +39,8 @@ class DBTestUniversalCompactionBase
 
 class DBTestUniversalCompaction : public DBTestUniversalCompactionBase {
  public:
-  DBTestUniversalCompaction() :
-      DBTestUniversalCompactionBase("/db_universal_compaction_test") {}
+  DBTestUniversalCompaction()
+      : DBTestUniversalCompactionBase("/db_universal_compaction_test") {}
 };
 
 class DBTestUniversalCompaction2 : public DBTestBase {
@@ -93,7 +93,7 @@ class KeepFilterFactory : public CompactionFilterFactory {
   std::atomic_bool expect_full_compaction_;
   std::atomic_bool expect_manual_compaction_;
 };
-}  // namespace
+}  // anonymous namespace
 
 // Make sure we don't trigger a problem if the trigger condtion is given
 // to be 0, which is invalid.
@@ -563,8 +563,7 @@ TEST_P(DBTestUniversalCompaction, CompactFilesOnUniversalCompaction) {
   }
 
   if (compaction_input_file_names.size() == 0) {
-    compaction_input_file_names.push_back(
-        cf_meta.levels[0].files[0].name);
+    compaction_input_file_names.push_back(cf_meta.levels[0].files[0].name);
   }
 
   // expect fail since universal compaction only allow L0 output
@@ -574,27 +573,22 @@ TEST_P(DBTestUniversalCompaction, CompactFilesOnUniversalCompaction) {
                    .ok());
 
   // expect ok and verify the compacted files no longer exist.
-  ASSERT_OK(dbfull()->CompactFiles(
-      CompactionOptions(), handles_[1],
+  ASSERT_OK(dbfull()->CompactFiles(CompactionOptions(), handles_[1],
                                    compaction_input_file_names, 0));
 
   dbfull()->GetColumnFamilyMetaData(handles_[1], &cf_meta);
   VerifyCompactionResult(
-      cf_meta,
-      std::set<std::string>(compaction_input_file_names.begin(),
+      cf_meta, std::set<std::string>(compaction_input_file_names.begin(),
                                      compaction_input_file_names.end()));
 
   compaction_input_file_names.clear();
 
   // Pick the first and the last file, expect everything is
   // compacted into one single file.
+  compaction_input_file_names.push_back(cf_meta.levels[0].files[0].name);
   compaction_input_file_names.push_back(
-      cf_meta.levels[0].files[0].name);
-  compaction_input_file_names.push_back(
-      cf_meta.levels[0].files[
-          cf_meta.levels[0].files.size() - 1].name);
-  ASSERT_OK(dbfull()->CompactFiles(
-      CompactionOptions(), handles_[1],
+      cf_meta.levels[0].files[cf_meta.levels[0].files.size() - 1].name);
+  ASSERT_OK(dbfull()->CompactFiles(CompactionOptions(), handles_[1],
                                    compaction_input_file_names, 0));
 
   dbfull()->GetColumnFamilyMetaData(handles_[1], &cf_meta);
@@ -640,8 +634,8 @@ TEST_P(DBTestUniversalCompaction, UniversalCompactionTargetLevel) {
 class DBTestUniversalCompactionMultiLevels
     : public DBTestUniversalCompactionBase {
  public:
-  DBTestUniversalCompactionMultiLevels() :
-      DBTestUniversalCompactionBase(
+  DBTestUniversalCompactionMultiLevels()
+      : DBTestUniversalCompactionBase(
             "/db_universal_compaction_multi_levels_test") {}
 };
 
@@ -725,12 +719,11 @@ INSTANTIATE_TEST_CASE_P(MultiLevels, DBTestUniversalCompactionMultiLevels,
                         ::testing::Combine(::testing::Values(3, 20),
                                            ::testing::Bool()));
 
-class DBTestUniversalCompactionParallel :
-    public DBTestUniversalCompactionBase {
+class DBTestUniversalCompactionParallel : public DBTestUniversalCompactionBase {
  public:
-  DBTestUniversalCompactionParallel() :
-      DBTestUniversalCompactionBase(
-          "/db_universal_compaction_prallel_test") {}
+  DBTestUniversalCompactionParallel()
+      : DBTestUniversalCompactionBase("/db_universal_compaction_prallel_test") {
+  }
 };
 
 TEST_P(DBTestUniversalCompactionParallel, UniversalCompactionParallel) {
@@ -1567,7 +1560,6 @@ TEST_P(DBTestUniversalCompaction, IncreaseUniversalCompactionNumLevels) {
   verify_func(max_key3);
 }
 
-
 TEST_P(DBTestUniversalCompaction, UniversalCompactionSecondPathRatio) {
   if (!Snappy_Supported()) {
     return;
@@ -1829,8 +1821,8 @@ INSTANTIATE_TEST_CASE_P(NumLevels, DBTestUniversalCompaction,
 class DBTestUniversalManualCompactionOutputPathId
     : public DBTestUniversalCompactionBase {
  public:
-  DBTestUniversalManualCompactionOutputPathId() :
-      DBTestUniversalCompactionBase(
+  DBTestUniversalManualCompactionOutputPathId()
+      : DBTestUniversalCompactionBase(
             "/db_universal_compaction_manual_pid_test") {}
 };
 

db/db_write_test.cc

@@ -170,7 +170,8 @@ TEST_P(DBWriteTest, WriteStallRemoveNoSlowdownWrite) {
 
 TEST_P(DBWriteTest, WriteThreadHangOnWriteStall) {
   Options options = GetOptions();
-  options.level0_stop_writes_trigger = options.level0_slowdown_writes_trigger = 4;
+  options.level0_stop_writes_trigger = options.level0_slowdown_writes_trigger =
+      4;
   std::vector<port::Thread> threads;
   std::atomic<int> thread_num(0);
   port::Mutex mutex;
@@ -254,8 +255,9 @@ TEST_P(DBWriteTest, WriteThreadHangOnWriteStall) {
   ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable(nullptr));
   // This would have triggered a write stall. Unblock the write group leader
   TEST_SYNC_POINT("DBWriteTest::WriteThreadHangOnWriteStall:2");
-  // The leader is going to create missing newer links. When the leader finishes,
-  // the next leader is going to delay writes and fail writers with no_slowdown
+  // The leader is going to create missing newer links. When the leader
+  // finishes, the next leader is going to delay writes and fail writers with
+  // no_slowdown
 
   TEST_SYNC_POINT("DBWriteTest::WriteThreadHangOnWriteStall:3");
   for (auto& t : threads) {
@@ -635,15 +637,15 @@ TEST_P(DBWriteTest, ConcurrentlyDisabledWAL) {
   std::string wal_value = "0";
   std::thread threads[10];
   for (int t = 0; t < 10; t++) {
-        threads[t] = std::thread([t, wal_key_prefix, wal_value, no_wal_key_prefix, no_wal_value, this] {
+    threads[t] = std::thread([t, wal_key_prefix, wal_value, no_wal_key_prefix,
+                              no_wal_value, this] {
       for (int i = 0; i < 10; i++) {
         ROCKSDB_NAMESPACE::WriteOptions write_option_disable;
         write_option_disable.disableWAL = true;
         ROCKSDB_NAMESPACE::WriteOptions write_option_default;
-              std::string no_wal_key = no_wal_key_prefix + std::to_string(t) +
-                                       "_" + std::to_string(i);
-              ASSERT_OK(
-                  this->Put(no_wal_key, no_wal_value, write_option_disable));
+        std::string no_wal_key =
+            no_wal_key_prefix + std::to_string(t) + "_" + std::to_string(i);
+        ASSERT_OK(this->Put(no_wal_key, no_wal_value, write_option_disable));
         std::string wal_key =
             wal_key_prefix + std::to_string(i) + "_" + std::to_string(i);
         ASSERT_OK(this->Put(wal_key, wal_value, write_option_default));
@@ -657,7 +659,8 @@ TEST_P(DBWriteTest, ConcurrentlyDisabledWAL) {
   }
   uint64_t bytes_num = options.statistics->getTickerCount(
       ROCKSDB_NAMESPACE::Tickers::WAL_FILE_BYTES);
-    // written WAL size should less than 100KB (even included HEADER & FOOTER overhead)
+  // written WAL size should less than 100KB (even included HEADER & FOOTER
+  // overhead)
   ASSERT_LE(bytes_num, 1024 * 100);
 }
 

db/dbformat_test.cc

@@ -15,8 +15,7 @@
 
 namespace ROCKSDB_NAMESPACE {
 
-static std::string IKey(const std::string& user_key,
-                        uint64_t seq,
+static std::string IKey(const std::string& user_key, uint64_t seq,
                         ValueType vt) {
   std::string encoded;
   AppendInternalKey(&encoded, ParsedInternalKey(user_key, seq, vt));
@@ -37,9 +36,7 @@ static std::string ShortSuccessor(const std::string& s) {
   return result;
 }
 
-static void TestKey(const std::string& key,
-                    uint64_t seq,
-                    ValueType vt) {
+static void TestKey(const std::string& key, uint64_t seq, ValueType vt) {
   std::string encoded = IKey(key, seq, vt);
 
   Slice in(encoded);
@@ -57,12 +54,18 @@ class FormatTest : public testing::Test {};
 
 TEST_F(FormatTest, InternalKey_EncodeDecode) {
   const char* keys[] = {"", "k", "hello", "longggggggggggggggggggggg"};
-  const uint64_t seq[] = {
-    1, 2, 3,
-    (1ull << 8) - 1, 1ull << 8, (1ull << 8) + 1,
-    (1ull << 16) - 1, 1ull << 16, (1ull << 16) + 1,
-    (1ull << 32) - 1, 1ull << 32, (1ull << 32) + 1
-  };
+  const uint64_t seq[] = {1,
+                          2,
+                          3,
+                          (1ull << 8) - 1,
+                          1ull << 8,
+                          (1ull << 8) + 1,
+                          (1ull << 16) - 1,
+                          1ull << 16,
+                          (1ull << 16) + 1,
+                          (1ull << 32) - 1,
+                          1ull << 32,
+                          (1ull << 32) + 1};
   for (unsigned int k = 0; k < sizeof(keys) / sizeof(keys[0]); k++) {
     for (unsigned int s = 0; s < sizeof(seq) / sizeof(seq[0]); s++) {
       TestKey(keys[k], seq[s], kTypeValue);
@@ -74,27 +77,25 @@ TEST_F(FormatTest, InternalKey_EncodeDecode) {
 TEST_F(FormatTest, InternalKeyShortSeparator) {
   // When user keys are same
   ASSERT_EQ(IKey("foo", 100, kTypeValue),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("foo", 99, kTypeValue)));
-  ASSERT_EQ(IKey("foo", 100, kTypeValue),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("foo", 101, kTypeValue)));
-  ASSERT_EQ(IKey("foo", 100, kTypeValue),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("foo", 100, kTypeValue)));
-  ASSERT_EQ(IKey("foo", 100, kTypeValue),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("foo", 100, kTypeDeletion)));
+            Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 99, kTypeValue)));
+  ASSERT_EQ(
+      IKey("foo", 100, kTypeValue),
+      Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 101, kTypeValue)));
+  ASSERT_EQ(
+      IKey("foo", 100, kTypeValue),
+      Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 100, kTypeValue)));
+  ASSERT_EQ(
+      IKey("foo", 100, kTypeValue),
+      Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 100, kTypeDeletion)));
 
   // When user keys are misordered
   ASSERT_EQ(IKey("foo", 100, kTypeValue),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("bar", 99, kTypeValue)));
+            Shorten(IKey("foo", 100, kTypeValue), IKey("bar", 99, kTypeValue)));
 
   // When user keys are different, but correctly ordered
-  ASSERT_EQ(IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("hello", 200, kTypeValue)));
+  ASSERT_EQ(
+      IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
+      Shorten(IKey("foo", 100, kTypeValue), IKey("hello", 200, kTypeValue)));
 
   ASSERT_EQ(IKey("ABC2", kMaxSequenceNumber, kValueTypeForSeek),
             Shorten(IKey("ABC1AAAAA", 100, kTypeValue),
@@ -121,14 +122,14 @@ TEST_F(FormatTest, InternalKeyShortSeparator) {
       Shorten(IKey("AAA1", 100, kTypeValue), IKey("AAA2", 200, kTypeValue)));
 
   // When start user key is prefix of limit user key
-  ASSERT_EQ(IKey("foo", 100, kTypeValue),
-            Shorten(IKey("foo", 100, kTypeValue),
-                    IKey("foobar", 200, kTypeValue)));
+  ASSERT_EQ(
+      IKey("foo", 100, kTypeValue),
+      Shorten(IKey("foo", 100, kTypeValue), IKey("foobar", 200, kTypeValue)));
 
   // When limit user key is prefix of start user key
-  ASSERT_EQ(IKey("foobar", 100, kTypeValue),
-            Shorten(IKey("foobar", 100, kTypeValue),
-                    IKey("foo", 200, kTypeValue)));
+  ASSERT_EQ(
+      IKey("foobar", 100, kTypeValue),
+      Shorten(IKey("foobar", 100, kTypeValue), IKey("foo", 200, kTypeValue)));
 }
 
 TEST_F(FormatTest, InternalKeyShortestSuccessor) {

db/deletefile_test.cc

@@ -10,9 +10,11 @@
 #ifndef ROCKSDB_LITE
 
 #include <stdlib.h>
+
 #include <map>
 #include <string>
 #include <vector>
+
 #include "db/db_impl/db_impl.h"
 #include "db/db_test_util.h"
 #include "db/version_set.h"
@@ -63,10 +65,8 @@ class DeleteFileTest : public DBTestBase {
     }
   }
 
-  int numKeysInLevels(
-    std::vector<LiveFileMetaData> &metadata,
+  int numKeysInLevels(std::vector<LiveFileMetaData>& metadata,
                       std::vector<int>* keysperlevel = nullptr) {
-
     if (keysperlevel != nullptr) {
       keysperlevel->resize(numlevels_);
     }
@@ -82,8 +82,7 @@ class DeleteFileTest : public DBTestBase {
       }
       fprintf(stderr, "level %d name %s smallest %s largest %s\n",
               metadata[i].level, metadata[i].name.c_str(),
-              metadata[i].smallestkey.c_str(),
-              metadata[i].largestkey.c_str());
+              metadata[i].smallestkey.c_str(), metadata[i].largestkey.c_str());
     }
     return numKeys;
   }
@@ -481,8 +480,8 @@ TEST_F(DeleteFileTest, DeleteFileWithIterator) {
   }
 
   Status status = db_->DeleteFile(level2file);
-  fprintf(stdout, "Deletion status %s: %s\n",
-          level2file.c_str(), status.ToString().c_str());
+  fprintf(stdout, "Deletion status %s: %s\n", level2file.c_str(),
+          status.ToString().c_str());
   ASSERT_OK(status);
   it->SeekToFirst();
   int numKeysIterated = 0;

db/error_handler.cc

@@ -234,8 +234,8 @@ void ErrorHandler::CancelErrorRecovery() {
   // We'll release the lock before calling sfm, so make sure no new
   // recovery gets scheduled at that point
   auto_recovery_ = false;
-  SstFileManagerImpl* sfm = reinterpret_cast<SstFileManagerImpl*>(
-      db_options_.sst_file_manager.get());
+  SstFileManagerImpl* sfm =
+      reinterpret_cast<SstFileManagerImpl*>(db_options_.sst_file_manager.get());
   if (sfm) {
     // This may or may not cancel a pending recovery
     db_mutex_->Unlock();
@@ -292,8 +292,8 @@ const Status& ErrorHandler::HandleKnownErrors(const Status& bg_err,
   bool found = false;
 
   {
-    auto entry = ErrorSeverityMap.find(std::make_tuple(reason, bg_err.code(),
-          bg_err.subcode(), paranoid));
+    auto entry = ErrorSeverityMap.find(
+        std::make_tuple(reason, bg_err.code(), bg_err.subcode(), paranoid));
     if (entry != ErrorSeverityMap.end()) {
       sev = entry->second;
       found = true;
@@ -301,8 +301,8 @@ const Status& ErrorHandler::HandleKnownErrors(const Status& bg_err,
   }
 
   if (!found) {
-    auto entry = DefaultErrorSeverityMap.find(std::make_tuple(reason,
-          bg_err.code(), paranoid));
+    auto entry = DefaultErrorSeverityMap.find(
+        std::make_tuple(reason, bg_err.code(), paranoid));
     if (entry != DefaultErrorSeverityMap.end()) {
       sev = entry->second;
       found = true;

db/error_handler.h

@@ -49,8 +49,7 @@ class ErrorHandler {
   void EnableAutoRecovery() { auto_recovery_ = true; }
 
   Status::Severity GetErrorSeverity(BackgroundErrorReason reason,
-                                     Status::Code code,
-                                     Status::SubCode subcode);
+                                    Status::Code code, Status::SubCode subcode);
 
   const Status& SetBGError(const Status& bg_err, BackgroundErrorReason reason);
 

db/event_helpers.cc

@@ -23,7 +23,7 @@ template <class T>
 inline T SafeDivide(T a, T b) {
   return b == 0 ? 0 : a / b;
 }
-}  // namespace
+}  // anonymous namespace
 
 void EventHelpers::AppendCurrentTime(JSONWriter* jwriter) {
   *jwriter << "time_micros"

db/event_helpers.h

@@ -39,9 +39,9 @@ class EventHelpers {
       const std::string& file_checksum,
       const std::string& file_checksum_func_name);
   static void LogAndNotifyTableFileDeletion(
-      EventLogger* event_logger, int job_id,
-      uint64_t file_number, const std::string& file_path,
-      const Status& status, const std::string& db_name,
+      EventLogger* event_logger, int job_id, uint64_t file_number,
+      const std::string& file_path, const Status& status,
+      const std::string& db_name,
       const std::vector<std::shared_ptr<EventListener>>& listeners);
   static void NotifyOnErrorRecoveryEnd(
       const std::vector<std::shared_ptr<EventListener>>& listeners,

db/external_sst_file_ingestion_job.cc

@@ -106,9 +106,8 @@ Status ExternalSstFileIngestionJob::Prepare(
   for (IngestedFileInfo& f : files_to_ingest_) {
     f.copy_file = false;
     const std::string path_outside_db = f.external_file_path;
-    const std::string path_inside_db =
-        TableFileName(cfd_->ioptions()->cf_paths, f.fd.GetNumber(),
-                      f.fd.GetPathId());
+    const std::string path_inside_db = TableFileName(
+        cfd_->ioptions()->cf_paths, f.fd.GetNumber(), f.fd.GetPathId());
     if (ingestion_options_.move_files) {
       status =
           fs_->LinkFile(path_outside_db, path_inside_db, IOOptions(), nullptr);
@@ -491,7 +490,8 @@ void ExternalSstFileIngestionJob::UpdateStats() {
   stream.StartArray();
 
   for (IngestedFileInfo& f : files_to_ingest_) {
-    InternalStats::CompactionStats stats(CompactionReason::kExternalSstIngestion, 1);
+    InternalStats::CompactionStats stats(
+        CompactionReason::kExternalSstIngestion, 1);
     stats.micros = total_time;
     // If actual copy occurred for this file, then we need to count the file
     // size as the actual bytes written. If the file was linked, then we ignore
@@ -591,8 +591,8 @@ Status ExternalSstFileIngestionJob::GetIngestedFileInfo(
   std::unique_ptr<FSRandomAccessFile> sst_file;
   std::unique_ptr<RandomAccessFileReader> sst_file_reader;
 
-  status = fs_->NewRandomAccessFile(external_file, env_options_,
-                                    &sst_file, nullptr);
+  status =
+      fs_->NewRandomAccessFile(external_file, env_options_, &sst_file, nullptr);
   if (!status.ok()) {
     return status;
   }
@@ -912,9 +912,8 @@ Status ExternalSstFileIngestionJob::AssignGlobalSeqnoForIngestedFile(
     // If the file system does not support random write, then we should not.
     // Otherwise we should.
     std::unique_ptr<FSRandomRWFile> rwfile;
-    Status status =
-        fs_->NewRandomRWFile(file_to_ingest->internal_file_path, env_options_,
-                             &rwfile, nullptr);
+    Status status = fs_->NewRandomRWFile(file_to_ingest->internal_file_path,
+                                         env_options_, &rwfile, nullptr);
     TEST_SYNC_POINT_CALLBACK("ExternalSstFileIngestionJob::NewRandomRWFile",
                              &status);
     if (status.ok()) {

db/external_sst_file_test.cc

@@ -301,7 +301,8 @@ TEST_F(ExternalSSTFileTest, Basic) {
 
     SstFileWriter sst_file_writer(EnvOptions(), options);
 
-    // Current file size should be 0 after sst_file_writer init and before open a file.
+    // Current file size should be 0 after sst_file_writer init and before open
+    // a file.
     ASSERT_EQ(sst_file_writer.FileSize(), 0);
 
     // file1.sst (0 => 99)
@@ -2318,7 +2319,6 @@ TEST_F(ExternalSSTFileTest, SkipBloomFilter) {
   table_options.cache_index_and_filter_blocks = true;
   options.table_factory.reset(NewBlockBasedTableFactory(table_options));
 
-
   // Create external SST file and include bloom filters
   options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
   DestroyAndReopen(options);

db/fault_injection_test.cc

@@ -338,8 +338,7 @@ class FaultInjectionTest
                      FaultInjectionTest::kValExpectNoError));
   }
 
-  void NoWriteTestPreFault() {
-  }
+  void NoWriteTestPreFault() {}
 
   void NoWriteTestReopenWithFault(ResetMethod reset_method) {
     CloseDB();

db/file_indexer.cc

@@ -8,8 +8,10 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
 #include "db/file_indexer.h"
+
 #include <algorithm>
 #include <functional>
+
 #include "db/version_edit.h"
 #include "rocksdb/comparator.h"
 

db/file_indexer.h

@@ -12,6 +12,7 @@
 #include <functional>
 #include <limits>
 #include <vector>
+
 #include "memory/arena.h"
 #include "port/port.h"
 #include "util/autovector.h"

db/file_indexer_test.cc

@@ -8,7 +8,9 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
 #include "db/file_indexer.h"
+
 #include <string>
+
 #include "db/dbformat.h"
 #include "db/version_edit.h"
 #include "port/stack_trace.h"
@@ -73,8 +75,8 @@ class FileIndexerTest : public testing::Test {
   }
 
   void GetNextLevelIndex(const uint32_t level, const uint32_t file_index,
-      const int cmp_smallest, const int cmp_largest, int32_t* left_index,
-      int32_t* right_index) {
+                         const int cmp_smallest, const int cmp_largest,
+                         int32_t* left_index, int32_t* right_index) {
     *left_index = 100;
     *right_index = 100;
     indexer->GetNextLevelIndex(level, file_index, cmp_smallest, cmp_largest,

db/filename_test.cc

@@ -69,8 +69,7 @@ TEST_F(FileNameTest, Parse) {
   }
 
   // Errors
-  static const char* errors[] = {
-    "",
+  static const char* errors[] = {"",
                                  "foo",
                                  "foo-dx-100.log",
                                  ".log",
@@ -96,8 +95,7 @@ TEST_F(FileNameTest, Parse) {
                                  "184467440737095516150.log",
                                  "100",
                                  "100.",
-    "100.lop"
-  };
+                                 "100.lop"};
   for (unsigned int i = 0; i < sizeof(errors) / sizeof(errors[0]); i++) {
     std::string f = errors[i];
     ASSERT_TRUE(!ParseFileName(f, &number, &type)) << f;

db/flush_job.cc

@@ -136,16 +136,13 @@ FlushJob::FlushJob(
   TEST_SYNC_POINT("FlushJob::FlushJob()");
 }
 
-FlushJob::~FlushJob() {
-  ThreadStatusUtil::ResetThreadStatus();
-}
+FlushJob::~FlushJob() { ThreadStatusUtil::ResetThreadStatus(); }
 
 void FlushJob::ReportStartedFlush() {
   ThreadStatusUtil::SetColumnFamily(cfd_, cfd_->ioptions()->env,
                                     db_options_.enable_thread_tracking);
   ThreadStatusUtil::SetThreadOperation(ThreadStatus::OP_FLUSH);
-  ThreadStatusUtil::SetThreadOperationProperty(
-      ThreadStatus::COMPACTION_JOB_ID,
+  ThreadStatusUtil::SetThreadOperationProperty(ThreadStatus::COMPACTION_JOB_ID,
                                                job_context_->job_id);
   IOSTATS_RESET(bytes_written);
 }
@@ -156,8 +153,7 @@ void FlushJob::ReportFlushInputSize(const autovector<MemTable*>& mems) {
     input_size += mem->ApproximateMemoryUsage();
   }
   ThreadStatusUtil::IncreaseThreadOperationProperty(
-      ThreadStatus::FLUSH_BYTES_MEMTABLES,
-      input_size);
+      ThreadStatus::FLUSH_BYTES_MEMTABLES, input_size);
 }
 
 void FlushJob::RecordFlushIOStats() {
@@ -220,8 +216,7 @@ Status FlushJob::Run(LogsWithPrepTracker* prep_tracker, FileMetaData* file_meta,
   double mempurge_threshold =
       mutable_cf_options_.experimental_mempurge_threshold;
 
-  AutoThreadOperationStageUpdater stage_run(
-      ThreadStatus::STAGE_FLUSH_RUN);
+  AutoThreadOperationStageUpdater stage_run(ThreadStatus::STAGE_FLUSH_RUN);
   if (mems_.empty()) {
     ROCKS_LOG_BUFFER(log_buffer_, "[%s] Nothing in memtable to flush",
                      cfd_->GetName().c_str());
@@ -906,8 +901,7 @@ Status FlushJob::WriteLevel0Table() {
       }
       const uint64_t current_time = static_cast<uint64_t>(_current_time);
 
-      uint64_t oldest_key_time =
-          mems_.front()->ApproximateOldestKeyTime();
+      uint64_t oldest_key_time = mems_.front()->ApproximateOldestKeyTime();
 
       // It's not clear whether oldest_key_time is always available. In case
       // it is not available, use current_time.

db/flush_job_test.cc

@@ -214,8 +214,8 @@ TEST_F(FlushJobTest, NonEmpty) {
   // Note: the first two blob references will not be considered when resolving
   // the oldest blob file referenced (the first one is inlined TTL, while the
   // second one is TTL and thus points to a TTL blob file).
-  constexpr std::array<uint64_t, 6> blob_file_numbers{{
-      kInvalidBlobFileNumber, 5, 103, 17, 102, 101}};
+  constexpr std::array<uint64_t, 6> blob_file_numbers{
+      {kInvalidBlobFileNumber, 5, 103, 17, 102, 101}};
   for (size_t i = 0; i < blob_file_numbers.size(); ++i) {
     std::string key(std::to_string(i + 10001));
     std::string blob_index;

db/forward_iterator.cc

@@ -104,9 +104,7 @@ class ForwardLevelIterator : public InternalIterator {
     status_ = Status::NotSupported("ForwardLevelIterator::Prev()");
     valid_ = false;
   }
-  bool Valid() const override {
-    return valid_;
-  }
+  bool Valid() const override { return valid_; }
   void SeekToFirst() override {
     assert(file_iter_ != nullptr);
     if (!status_.ok()) {
@@ -249,9 +247,7 @@ ForwardIterator::ForwardIterator(DBImpl* db, const ReadOptions& read_options,
   immutable_status_.PermitUncheckedError();
 }
 
-ForwardIterator::~ForwardIterator() {
-  Cleanup(true);
-}
+ForwardIterator::~ForwardIterator() { Cleanup(true); }
 
 void ForwardIterator::SVCleanup(DBImpl* db, SuperVersion* sv,
                                 bool background_purge_on_iterator_cleanup) {
@@ -284,13 +280,13 @@ struct SVCleanupParams {
   SuperVersion* sv;
   bool background_purge_on_iterator_cleanup;
 };
-}
+}  // anonymous namespace
 
 // Used in PinnedIteratorsManager to release pinned SuperVersion
 void ForwardIterator::DeferredSVCleanup(void* arg) {
   auto d = reinterpret_cast<SVCleanupParams*>(arg);
-  ForwardIterator::SVCleanup(
-    d->db, d->sv, d->background_purge_on_iterator_cleanup);
+  ForwardIterator::SVCleanup(d->db, d->sv,
+                             d->background_purge_on_iterator_cleanup);
   delete d;
 }
 
@@ -547,8 +543,7 @@ void ForwardIterator::Next() {
   assert(valid_);
   bool update_prev_key = false;
 
-  if (sv_ == nullptr ||
-      sv_->version_number != cfd_->GetSuperVersionNumber()) {
+  if (sv_ == nullptr || sv_->version_number != cfd_->GetSuperVersionNumber()) {
     std::string current_key = key().ToString();
     Slice old_key(current_key.data(), current_key.size());
 
@@ -578,7 +573,6 @@ void ForwardIterator::Next() {
       update_prev_key = true;
     }
 
-
     if (update_prev_key) {
       prev_key_.SetInternalKey(current_->key());
       is_prev_set_ = true;
@@ -1043,8 +1037,8 @@ uint32_t ForwardIterator::FindFileInRange(
                f->largest.Encode(), k) < 0;
   };
   const auto& b = files.begin();
-  return static_cast<uint32_t>(std::lower_bound(b + left,
-                                 b + right, internal_key, cmp) - b);
+  return static_cast<uint32_t>(
+      std::lower_bound(b + left, b + right, internal_key, cmp) - b);
 }
 
 void ForwardIterator::DeleteIterator(InternalIterator* iter, bool is_arena) {

db/forward_iterator.h

@@ -7,9 +7,9 @@
 #include "rocksdb/comparator.h"
 #ifndef ROCKSDB_LITE
 
+#include <queue>
 #include <string>
 #include <vector>
-#include <queue>
 
 #include "memory/arena.h"
 #include "rocksdb/db.h"
@@ -35,6 +35,7 @@ class MinIterComparator {
   bool operator()(InternalIterator* a, InternalIterator* b) {
     return comparator_->Compare(a->key(), b->key()) > 0;
   }
+
  private:
   const CompareInterface* comparator_;
 };
@@ -92,8 +93,8 @@ class ForwardIterator : public InternalIterator {
   // either done immediately or deferred until this iterator is unpinned by
   // PinnedIteratorsManager.
   void SVCleanup();
-  static void SVCleanup(
-    DBImpl* db, SuperVersion* sv, bool background_purge_on_iterator_cleanup);
+  static void SVCleanup(DBImpl* db, SuperVersion* sv,
+                        bool background_purge_on_iterator_cleanup);
   static void DeferredSVCleanup(void* arg);
 
   void RebuildIterators(bool refresh_sv);
@@ -107,9 +108,9 @@ class ForwardIterator : public InternalIterator {
   void UpdateCurrent();
   bool NeedToSeekImmutable(const Slice& internal_key);
   void DeleteCurrentIter();
-  uint32_t FindFileInRange(
-    const std::vector<FileMetaData*>& files, const Slice& internal_key,
-    uint32_t left, uint32_t right);
+  uint32_t FindFileInRange(const std::vector<FileMetaData*>& files,
+                           const Slice& internal_key, uint32_t left,
+                           uint32_t right);
 
   bool IsOverUpperBound(const Slice& internal_key) const;
 

db/forward_iterator_bench.cc

@@ -14,6 +14,7 @@ int main() {
 int main() { return 0; }
 #else
 #include <semaphore.h>
+
 #include <atomic>
 #include <bitset>
 #include <chrono>
@@ -281,8 +282,9 @@ struct StatsThread {
       }
       auto now = std::chrono::steady_clock::now();
       double elapsed =
-          std::chrono::duration_cast<std::chrono::duration<double> >(
-              now - tlast).count();
+          std::chrono::duration_cast<std::chrono::duration<double> >(now -
+                                                                     tlast)
+              .count();
       uint64_t w = ::stats.written.load();
       uint64_t r = ::stats.read.load();
       fprintf(stderr,

db/import_column_family_job.cc

@@ -228,8 +228,8 @@ Status ImportColumnFamilyJob::GetIngestedFileInfo(
   std::unique_ptr<FSRandomAccessFile> sst_file;
   std::unique_ptr<RandomAccessFileReader> sst_file_reader;
 
-  status = fs_->NewRandomAccessFile(external_file, env_options_,
-                                    &sst_file, nullptr);
+  status =
+      fs_->NewRandomAccessFile(external_file, env_options_, &sst_file, nullptr);
   if (!status.ok()) {
     return status;
   }

db/internal_stats.h

@@ -980,13 +980,14 @@ class InternalStats {
     return false;
   }
 
-  bool GetIntProperty(const DBPropertyInfo& /*property_info*/, uint64_t* /*value*/,
-                      DBImpl* /*db*/) const {
+  bool GetIntProperty(const DBPropertyInfo& /*property_info*/,
+                      uint64_t* /*value*/, DBImpl* /*db*/) const {
     return false;
   }
 
   bool GetIntPropertyOutOfMutex(const DBPropertyInfo& /*property_info*/,
-                                Version* /*version*/, uint64_t* /*value*/) const {
+                                Version* /*version*/,
+                                uint64_t* /*value*/) const {
     return false;
   }
 };

db/job_context.h

@@ -54,8 +54,7 @@ struct SuperVersionContext {
 
   inline bool HaveSomethingToDelete() const {
 #ifndef ROCKSDB_DISABLE_STALL_NOTIFICATION
-    return !superversions_to_free.empty() ||
-           !write_stall_notifications.empty();
+    return !superversions_to_free.empty() || !write_stall_notifications.empty();
 #else
     return !superversions_to_free.empty();
 #endif
@@ -77,7 +76,8 @@ struct SuperVersionContext {
     (void)new_cond;
     (void)name;
     (void)ioptions;
-#endif  // !defined(ROCKSDB_LITE) && !defined(ROCKSDB_DISABLE_STALL_NOTIFICATION)
+#endif  // !defined(ROCKSDB_LITE) &&
+        // !defined(ROCKSDB_DISABLE_STALL_NOTIFICATION)
   }
 
   void Clean() {
@@ -139,8 +139,7 @@ struct JobContext {
     CandidateFileInfo(std::string name, std::string path)
         : file_name(std::move(name)), file_path(std::move(path)) {}
     bool operator==(const CandidateFileInfo& other) const {
-      return file_name == other.file_name &&
-             file_path == other.file_path;
+      return file_name == other.file_name && file_path == other.file_path;
     }
   };
 

db/listener_test.cc

@@ -172,9 +172,9 @@ TEST_F(EventListenerTest, OnSingleDBCompactionTest) {
 
   TestCompactionListener* listener = new TestCompactionListener(this);
   options.listeners.emplace_back(listener);
-  std::vector<std::string> cf_names = {
-      "pikachu", "ilya", "muromec", "dobrynia",
-      "nikitich", "alyosha", "popovich"};
+  std::vector<std::string> cf_names = {"pikachu",  "ilya",     "muromec",
+                                       "dobrynia", "nikitich", "alyosha",
+                                       "popovich"};
   CreateAndReopenWithCF(cf_names, options);
   ASSERT_OK(Put(1, "pikachu", std::string(90000, 'p')));
 
@@ -214,8 +214,7 @@ class TestFlushListener : public EventListener {
   virtual ~TestFlushListener() {
     prev_fc_info_.status.PermitUncheckedError();  // Ignore the status
   }
-  void OnTableFileCreated(
-      const TableFileCreationInfo& info) override {
+  void OnTableFileCreated(const TableFileCreationInfo& info) override {
     // remember the info for later checking the FlushJobInfo.
     prev_fc_info_ = info;
     ASSERT_GT(info.db_name.size(), 0U);
@@ -250,8 +249,7 @@ class TestFlushListener : public EventListener {
 #endif  // ROCKSDB_USING_THREAD_STATUS
   }
 
-  void OnFlushCompleted(
-      DB* db, const FlushJobInfo& info) override {
+  void OnFlushCompleted(DB* db, const FlushJobInfo& info) override {
     flushed_dbs_.push_back(db);
     flushed_column_family_names_.push_back(info.cf_name);
     if (info.triggered_writes_slowdown) {
@@ -317,9 +315,9 @@ TEST_F(EventListenerTest, OnSingleDBFlushTest) {
 #endif  // ROCKSDB_USING_THREAD_STATUS
   TestFlushListener* listener = new TestFlushListener(options.env, this);
   options.listeners.emplace_back(listener);
-  std::vector<std::string> cf_names = {
-      "pikachu", "ilya", "muromec", "dobrynia",
-      "nikitich", "alyosha", "popovich"};
+  std::vector<std::string> cf_names = {"pikachu",  "ilya",     "muromec",
+                                       "dobrynia", "nikitich", "alyosha",
+                                       "popovich"};
   options.table_properties_collector_factories.push_back(
       std::make_shared<TestPropertiesCollectorFactory>());
   CreateAndReopenWithCF(cf_names, options);
@@ -421,9 +419,9 @@ TEST_F(EventListenerTest, MultiDBMultiListeners) {
     listeners.emplace_back(new TestFlushListener(options.env, this));
   }
 
-  std::vector<std::string> cf_names = {
-      "pikachu", "ilya", "muromec", "dobrynia",
-      "nikitich", "alyosha", "popovich"};
+  std::vector<std::string> cf_names = {"pikachu",  "ilya",     "muromec",
+                                       "dobrynia", "nikitich", "alyosha",
+                                       "popovich"};
 
   options.create_if_missing = true;
   for (int i = 0; i < kNumListeners; ++i) {
@@ -452,8 +450,8 @@ TEST_F(EventListenerTest, MultiDBMultiListeners) {
 
   for (int d = 0; d < kNumDBs; ++d) {
     for (size_t c = 0; c < cf_names.size(); ++c) {
-      ASSERT_OK(dbs[d]->Put(WriteOptions(), vec_handles[d][c],
-                cf_names[c], cf_names[c]));
+      ASSERT_OK(dbs[d]->Put(WriteOptions(), vec_handles[d][c], cf_names[c],
+                            cf_names[c]));
     }
   }
 
@@ -483,7 +481,6 @@ TEST_F(EventListenerTest, MultiDBMultiListeners) {
     }
   }
 
-
   for (auto handles : vec_handles) {
     for (auto h : handles) {
       delete h;
@@ -889,6 +886,7 @@ TEST_F(EventListenerTest, TableFileCreationListenersTest) {
 class MemTableSealedListener : public EventListener {
  private:
   SequenceNumber latest_seq_number_;
+
  public:
   MemTableSealedListener() {}
   void OnMemTableSealed(const MemTableInfo& info) override {

db/log_reader.cc

@@ -21,8 +21,7 @@
 namespace ROCKSDB_NAMESPACE {
 namespace log {
 
-Reader::Reporter::~Reporter() {
-}
+Reader::Reporter::~Reporter() {}
 
 Reader::Reader(std::shared_ptr<Logger> info_log,
                std::unique_ptr<SequentialFileReader>&& _file,
@@ -241,8 +240,7 @@ bool Reader::ReadRecord(Slice* record, std::string* scratch,
         FALLTHROUGH_INTENDED;
 
       case kBadRecordChecksum:
-        if (recycled_ &&
-            wal_recovery_mode ==
+        if (recycled_ && wal_recovery_mode ==
                              WALRecoveryMode::kTolerateCorruptedTailRecords) {
           scratch->clear();
           return false;
@@ -297,9 +295,7 @@ bool Reader::ReadRecord(Slice* record, std::string* scratch,
   return false;
 }
 
-uint64_t Reader::LastRecordOffset() {
-  return last_record_offset_;
-}
+uint64_t Reader::LastRecordOffset() { return last_record_offset_; }
 
 uint64_t Reader::LastRecordEnd() {
   return end_of_buffer_offset_ - buffer_.size();

db/log_reader.h

@@ -85,9 +85,7 @@ class Reader {
   uint64_t LastRecordEnd();
 
   // returns true if the reader has encountered an eof condition.
-  bool IsEOF() {
-    return eof_;
-  }
+  bool IsEOF() { return eof_; }
 
   // returns true if the reader has encountered read error.
   bool hasReadError() const { return read_error_; }

db/log_test.cc

@@ -185,9 +185,7 @@ class LogTest
     ASSERT_OK(writer_->AddRecord(Slice(msg)));
   }
 
-  size_t WrittenBytes() const {
-    return dest_contents().size();
-  }
+  size_t WrittenBytes() const { return dest_contents().size(); }
 
   std::string Read(const WALRecoveryMode wal_recovery_mode =
                        WALRecoveryMode::kTolerateCorruptedTailRecords) {
@@ -235,13 +233,9 @@ class LogTest
     source_->force_error_position_ = position;
   }
 
-  size_t DroppedBytes() const {
-    return report_.dropped_bytes_;
-  }
+  size_t DroppedBytes() const { return report_.dropped_bytes_; }
 
-  std::string ReportMessage() const {
-    return report_.message_;
-  }
+  std::string ReportMessage() const { return report_.message_; }
 
   void ForceEOF(size_t position = 0) {
     source_->force_eof_ = true;

db/logs_with_prep_tracker.h

@@ -58,6 +58,5 @@ class LogsWithPrepTracker {
   // both logs_with_prep_ and prepared_section_completed_.
   std::unordered_map<uint64_t, uint64_t> prepared_section_completed_;
   std::mutex prepared_section_completed_mutex_;
-
 };
 }  // namespace ROCKSDB_NAMESPACE

db/lookup_key.h

@@ -10,6 +10,7 @@
 #pragma once
 #include <string>
 #include <utility>
+
 #include "rocksdb/slice.h"
 #include "rocksdb/types.h"
 

db/malloc_stats.cc

@@ -10,9 +10,10 @@
 #include "db/malloc_stats.h"
 
 #ifndef ROCKSDB_LITE
-#include <memory>
 #include <string.h>
 
+#include <memory>
+
 #include "port/jemalloc_helper.h"
 
 namespace ROCKSDB_NAMESPACE {

db/manual_compaction_test.cc

@@ -42,9 +42,7 @@ std::string Key1(int i) {
   return buf;
 }
 
-std::string Key2(int i) {
-  return Key1(i) + "_xxx";
-}
+std::string Key2(int i) { return Key1(i) + "_xxx"; }
 
 class ManualCompactionTest : public testing::Test {
  public:

db/memtable.cc

@@ -330,9 +330,8 @@ int MemTable::KeyComparator::operator()(const char* prefix_len_key1,
   return comparator.CompareKeySeq(k1, k2);
 }
 
-int MemTable::KeyComparator::operator()(const char* prefix_len_key,
-                                        const KeyComparator::DecodedType& key)
-    const {
+int MemTable::KeyComparator::operator()(
+    const char* prefix_len_key, const KeyComparator::DecodedType& key) const {
   // Internal keys are encoded as length-prefixed strings.
   Slice a = GetLengthPrefixedSlice(prefix_len_key);
   return comparator.CompareKeySeq(a, key);
@@ -914,7 +913,7 @@ struct Saver {
     return true;
   }
 };
-}  // namespace
+}  // anonymous namespace
 
 static bool SaveValue(void* arg, const char* entry) {
   TEST_SYNC_POINT_CALLBACK("Memtable::SaveValue:Begin:entry", &entry);

db/memtable.h

@@ -448,9 +448,7 @@ class MemTable {
   // persisted.
   // REQUIRES: external synchronization to prevent simultaneous
   // operations on the same MemTable.
-  void MarkFlushed() {
-    table_->MarkFlushed();
-  }
+  void MarkFlushed() { table_->MarkFlushed(); }
 
   // return true if the current MemTableRep supports merge operator.
   bool IsMergeOperatorSupported() const {

db/memtable_list_test.cc

@@ -4,9 +4,11 @@
 //  (found in the LICENSE.Apache file in the root directory).
 
 #include "db/memtable_list.h"
+
 #include <algorithm>
 #include <string>
 #include <vector>
+
 #include "db/merge_context.h"
 #include "db/version_set.h"
 #include "db/write_controller.h"

db/merge_context.h

@@ -8,6 +8,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+
 #include "rocksdb/slice.h"
 
 namespace ROCKSDB_NAMESPACE {

db/merge_operator.cc

@@ -74,8 +74,7 @@ bool AssociativeMergeOperator::FullMergeV2(
 
 // Call the user defined simple merge on the operands;
 // NOTE: It is assumed that the client's merge-operator will handle any errors.
-bool AssociativeMergeOperator::PartialMerge(
-    const Slice& key,
+bool AssociativeMergeOperator::PartialMerge(const Slice& key,
                                             const Slice& left_operand,
                                             const Slice& right_operand,
                                             std::string* new_value,

db/obsolete_files_test.cc

@@ -10,10 +10,12 @@
 #ifndef ROCKSDB_LITE
 
 #include <stdlib.h>
+
 #include <algorithm>
 #include <map>
 #include <string>
 #include <vector>
+
 #include "db/db_impl/db_impl.h"
 #include "db/db_test_util.h"
 #include "db/version_set.h"
@@ -28,7 +30,6 @@
 #include "test_util/testutil.h"
 #include "util/string_util.h"
 
-
 namespace ROCKSDB_NAMESPACE {
 
 class ObsoleteFilesTest : public DBTestBase {

db/options_file_test.cc

@@ -59,7 +59,7 @@ void VerifyOptionsFileName(
     }
   }
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(OptionsFileTest, NumberOfOptionsFiles) {
   const int kReopenCount = 20;

db/perf_context_test.cc

@@ -103,8 +103,9 @@ TEST_F(PerfContextTest, SeekIntoDeletion) {
   }
 
   if (FLAGS_verbose) {
-    std::cout << "Get user key comparison: \n" << hist_get.ToString()
-              << "Get time: \n" << hist_get_time.ToString();
+    std::cout << "Get user key comparison: \n"
+              << hist_get.ToString() << "Get time: \n"
+              << hist_get_time.ToString();
   }
 
   {
@@ -139,7 +140,8 @@ TEST_F(PerfContextTest, SeekIntoDeletion) {
     hist_seek.Add(get_perf_context()->user_key_comparison_count);
     if (FLAGS_verbose) {
       std::cout << "seek cmp: " << get_perf_context()->user_key_comparison_count
-                << " ikey skipped " << get_perf_context()->internal_key_skipped_count
+                << " ikey skipped "
+                << get_perf_context()->internal_key_skipped_count
                 << " idelete skipped "
                 << get_perf_context()->internal_delete_skipped_count
                 << " elapsed: " << elapsed_nanos << "ns\n";
@@ -322,7 +324,8 @@ void ProfileQueries(bool enabled_time = false) {
     hist_mget_snapshot.Add(get_perf_context()->get_snapshot_time);
     hist_mget_memtable.Add(get_perf_context()->get_from_memtable_time);
     hist_mget_files.Add(get_perf_context()->get_from_output_files_time);
-    hist_mget_num_memtable_checked.Add(get_perf_context()->get_from_memtable_count);
+    hist_mget_num_memtable_checked.Add(
+        get_perf_context()->get_from_memtable_count);
     hist_mget_post_process.Add(get_perf_context()->get_post_process_time);
     hist_mget.Add(get_perf_context()->user_key_comparison_count);
   }
@@ -337,12 +340,14 @@ void ProfileQueries(bool enabled_time = false) {
               << hist_write_wal_time.ToString() << "\n"
               << " Writing Mem Table time: \n"
               << hist_write_memtable_time.ToString() << "\n"
-              << " Write Delay: \n" << hist_write_delay_time.ToString() << "\n"
+              << " Write Delay: \n"
+              << hist_write_delay_time.ToString() << "\n"
               << " Waiting for Batch time: \n"
               << hist_write_thread_wait_nanos.ToString() << "\n"
               << " Scheduling Flushes and Compactions Time: \n"
               << hist_write_scheduling_time.ToString() << "\n"
-              << " Total DB mutex nanos: \n" << total_db_mutex_nanos << "\n";
+              << " Total DB mutex nanos: \n"
+              << total_db_mutex_nanos << "\n";
 
     std::cout << "Get(): Time to get snapshot: \n"
               << hist_get_snapshot.ToString()
@@ -352,8 +357,8 @@ void ProfileQueries(bool enabled_time = false) {
               << hist_get_files.ToString() << "\n"
               << " Number of memtables checked: \n"
               << hist_num_memtable_checked.ToString() << "\n"
-              << " Time to post process: \n" << hist_get_post_process.ToString()
-              << "\n";
+              << " Time to post process: \n"
+              << hist_get_post_process.ToString() << "\n";
 
     std::cout << "MultiGet(): Time to get snapshot: \n"
               << hist_mget_snapshot.ToString()
@@ -440,7 +445,8 @@ void ProfileQueries(bool enabled_time = false) {
     hist_mget_snapshot.Add(get_perf_context()->get_snapshot_time);
     hist_mget_memtable.Add(get_perf_context()->get_from_memtable_time);
     hist_mget_files.Add(get_perf_context()->get_from_output_files_time);
-    hist_mget_num_memtable_checked.Add(get_perf_context()->get_from_memtable_count);
+    hist_mget_num_memtable_checked.Add(
+        get_perf_context()->get_from_memtable_count);
     hist_mget_post_process.Add(get_perf_context()->get_post_process_time);
     hist_mget.Add(get_perf_context()->user_key_comparison_count);
   }
@@ -459,8 +465,8 @@ void ProfileQueries(bool enabled_time = false) {
               << hist_get_files.ToString() << "\n"
               << " Number of memtables checked: \n"
               << hist_num_memtable_checked.ToString() << "\n"
-              << " Time to post process: \n" << hist_get_post_process.ToString()
-              << "\n";
+              << " Time to post process: \n"
+              << hist_get_post_process.ToString() << "\n";
 
     std::cout << "ReadOnly MultiGet(): Time to get snapshot: \n"
               << hist_mget_snapshot.ToString()
@@ -556,7 +562,8 @@ TEST_F(PerfContextTest, SeekKeyComparison) {
   }
 
   if (FLAGS_verbose) {
-    std::cout << "Put time:\n" << hist_put_time.ToString() << "WAL time:\n"
+    std::cout << "Put time:\n"
+              << hist_put_time.ToString() << "WAL time:\n"
               << hist_wal_time.ToString() << "time diff:\n"
               << hist_time_diff.ToString();
   }
@@ -584,7 +591,8 @@ TEST_F(PerfContextTest, SeekKeyComparison) {
   }
   ASSERT_OK(iter->status());
   if (FLAGS_verbose) {
-    std::cout << "Seek:\n" << hist_seek.ToString() << "Next:\n"
+    std::cout << "Seek:\n"
+              << hist_seek.ToString() << "Next:\n"
               << hist_next.ToString();
   }
 }
@@ -806,14 +814,18 @@ TEST_F(PerfContextTest, PerfContextByLevelGetSet) {
                    .bloom_filter_full_positive);
   ASSERT_EQ(1, (*(get_perf_context()->level_to_perf_context))[2]
                    .bloom_filter_full_true_positive);
-  ASSERT_EQ(1, (*(get_perf_context()->level_to_perf_context))[0]
-                  .block_cache_hit_count);
-  ASSERT_EQ(5, (*(get_perf_context()->level_to_perf_context))[2]
-                  .block_cache_hit_count);
-  ASSERT_EQ(2, (*(get_perf_context()->level_to_perf_context))[3]
-                  .block_cache_miss_count);
-  ASSERT_EQ(4, (*(get_perf_context()->level_to_perf_context))[1]
-                  .block_cache_miss_count);
+  ASSERT_EQ(
+      1,
+      (*(get_perf_context()->level_to_perf_context))[0].block_cache_hit_count);
+  ASSERT_EQ(
+      5,
+      (*(get_perf_context()->level_to_perf_context))[2].block_cache_hit_count);
+  ASSERT_EQ(
+      2,
+      (*(get_perf_context()->level_to_perf_context))[3].block_cache_miss_count);
+  ASSERT_EQ(
+      4,
+      (*(get_perf_context()->level_to_perf_context))[1].block_cache_miss_count);
   std::string zero_excluded = get_perf_context()->ToString(true);
   ASSERT_NE(std::string::npos,
             zero_excluded.find("bloom_filter_useful = 1@level5, 2@level7"));

db/plain_table_db_test.cc

@@ -38,7 +38,6 @@
 #include "util/string_util.h"
 #include "utilities/merge_operators.h"
 
-
 namespace ROCKSDB_NAMESPACE {
 class PlainTableKeyDecoderTest : public testing::Test {};
 
@@ -148,9 +147,7 @@ class PlainTableDBTest : public testing::Test,
 
   DBImpl* dbfull() { return static_cast_with_check<DBImpl>(db_); }
 
-  void Reopen(Options* options = nullptr) {
-    ASSERT_OK(TryReopen(options));
-  }
+  void Reopen(Options* options = nullptr) { ASSERT_OK(TryReopen(options)); }
 
   void Close() {
     delete db_;
@@ -200,9 +197,7 @@ class PlainTableDBTest : public testing::Test,
     return db_->Put(WriteOptions(), k, v);
   }
 
-  Status Delete(const std::string& k) {
-    return db_->Delete(WriteOptions(), k);
-  }
+  Status Delete(const std::string& k) { return db_->Delete(WriteOptions(), k); }
 
   std::string Get(const std::string& k, const Snapshot* snapshot = nullptr) {
     ReadOptions options;
@@ -217,7 +212,6 @@ class PlainTableDBTest : public testing::Test,
     return result;
   }
 
-
   int NumTableFilesAtLevel(int level) {
     std::string property;
     EXPECT_TRUE(db_->GetProperty(
@@ -503,15 +497,16 @@ TEST_P(PlainTableDBTest, Flush) {
             ASSERT_GT(int_num, 0U);
 
             TablePropertiesCollection ptc;
-          ASSERT_OK(
-              reinterpret_cast<DB*>(dbfull())->GetPropertiesOfAllTables(&ptc));
+            ASSERT_OK(reinterpret_cast<DB*>(dbfull())->GetPropertiesOfAllTables(
+                &ptc));
             ASSERT_EQ(1U, ptc.size());
             auto row = ptc.begin();
             auto tp = row->second;
 
             if (full_scan_mode) {
               // Does not support Get/Seek
-            std::unique_ptr<Iterator> iter(dbfull()->NewIterator(ReadOptions()));
+              std::unique_ptr<Iterator> iter(
+                  dbfull()->NewIterator(ReadOptions()));
               iter->SeekToFirst();
               ASSERT_TRUE(iter->Valid());
               ASSERT_EQ("0000000000000bar", iter->key().ToString());
@@ -863,7 +858,7 @@ namespace {
 std::string MakeLongKey(size_t length, char c) {
   return std::string(length, c);
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_P(PlainTableDBTest, IteratorLargeKeys) {
   Options options = CurrentOptions();
@@ -878,15 +873,10 @@ TEST_P(PlainTableDBTest, IteratorLargeKeys) {
   options.prefix_extractor.reset();
   DestroyAndReopen(&options);
 
-  std::string key_list[] = {
-      MakeLongKey(30, '0'),
-      MakeLongKey(16, '1'),
-      MakeLongKey(32, '2'),
-      MakeLongKey(60, '3'),
-      MakeLongKey(90, '4'),
-      MakeLongKey(50, '5'),
-      MakeLongKey(26, '6')
-  };
+  std::string key_list[] = {MakeLongKey(30, '0'), MakeLongKey(16, '1'),
+                            MakeLongKey(32, '2'), MakeLongKey(60, '3'),
+                            MakeLongKey(90, '4'), MakeLongKey(50, '5'),
+                            MakeLongKey(26, '6')};
 
   for (size_t i = 0; i < 7; i++) {
     ASSERT_OK(Put(key_list[i], std::to_string(i)));
@@ -913,7 +903,7 @@ namespace {
 std::string MakeLongKeyWithPrefix(size_t length, char c) {
   return "00000000" + std::string(length - 8, c);
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_P(PlainTableDBTest, IteratorLargeKeysWithPrefix) {
   Options options = CurrentOptions();
@@ -1315,8 +1305,7 @@ TEST_P(PlainTableDBTest, AdaptiveTable) {
   options.create_if_missing = false;
   std::shared_ptr<TableFactory> block_based_factory(
       NewBlockBasedTableFactory());
-  std::shared_ptr<TableFactory> plain_table_factory(
-      NewPlainTableFactory());
+  std::shared_ptr<TableFactory> plain_table_factory(NewPlainTableFactory());
   std::shared_ptr<TableFactory> dummy_factory;
   options.table_factory.reset(NewAdaptiveTableFactory(
       block_based_factory, block_based_factory, plain_table_factory));

db/prefix_test.cc

@@ -77,13 +77,11 @@ inline Slice TestKeyToSlice(std::string &s, const TestKey& test_key) {
 }
 
 inline const TestKey SliceToTestKey(const Slice& slice) {
-  return TestKey(DecodeFixed64(slice.data()),
-    DecodeFixed64(slice.data() + 8));
+  return TestKey(DecodeFixed64(slice.data()), DecodeFixed64(slice.data() + 8));
 }
 
 class TestKeyComparator : public Comparator {
  public:
-
   // Compare needs to be aware of the possibility of a and/or b is
   // prefix only
   int Compare(const Slice& a, const Slice& b) const override {
@@ -215,7 +213,7 @@ class SamePrefixTransform : public SliceTransform {
   bool FullLengthEnabled(size_t* /*len*/) const override { return false; }
 };
 
-}  // namespace
+}  // anonymous namespace
 
 class PrefixTest : public testing::Test {
  public:
@@ -244,9 +242,7 @@ class PrefixTest : public testing::Test {
     return std::shared_ptr<DB>(db);
   }
 
-  void FirstOption() {
-    option_config_ = kBegin;
-  }
+  void FirstOption() { option_config_ = kBegin; }
 
   bool NextOptions(int bucket_count) {
     // skip some options
@@ -350,8 +346,7 @@ TEST_F(PrefixTest, TestResult) {
     FirstOption();
     while (NextOptions(num_buckets)) {
       std::cout << "*** Mem table: " << options.memtable_factory->Name()
-                << " number of buckets: " << num_buckets
-                << std::endl;
+                << " number of buckets: " << num_buckets << std::endl;
       ASSERT_OK(DestroyDB(kDbName, Options()));
       auto db = OpenDb();
       WriteOptions write_options;
@@ -615,8 +610,9 @@ TEST_F(PrefixTest, DynamicPrefixIterator) {
       }
     }
 
-    std::cout << "Put key comparison: \n" << hist_put_comparison.ToString()
-              << "Put time: \n" << hist_put_time.ToString();
+    std::cout << "Put key comparison: \n"
+              << hist_put_comparison.ToString() << "Put time: \n"
+              << hist_put_time.ToString();
 
     // test seek existing keys
     HistogramImpl hist_seek_time;
@@ -635,8 +631,7 @@ TEST_F(PrefixTest, DynamicPrefixIterator) {
       auto key_prefix = options.prefix_extractor->Transform(key);
       uint64_t total_keys = 0;
       for (iter->Seek(key);
-           iter->Valid() && iter->key().starts_with(key_prefix);
-           iter->Next()) {
+           iter->Valid() && iter->key().starts_with(key_prefix); iter->Next()) {
         if (FLAGS_trigger_deadlock) {
           std::cout << "Behold the deadlock!\n";
           db->Delete(write_options, iter->key());
@@ -645,12 +640,12 @@ TEST_F(PrefixTest, DynamicPrefixIterator) {
       }
       hist_seek_time.Add(timer.ElapsedNanos());
       hist_seek_comparison.Add(get_perf_context()->user_key_comparison_count);
-      ASSERT_EQ(total_keys, FLAGS_items_per_prefix - FLAGS_items_per_prefix/2);
+      ASSERT_EQ(total_keys,
+                FLAGS_items_per_prefix - FLAGS_items_per_prefix / 2);
     }
 
     std::cout << "Seek key comparison: \n"
-              << hist_seek_comparison.ToString()
-              << "Seek time: \n"
+              << hist_seek_comparison.ToString() << "Seek time: \n"
               << hist_seek_time.ToString();
 
     // test non-existing keys
@@ -658,8 +653,7 @@ TEST_F(PrefixTest, DynamicPrefixIterator) {
     HistogramImpl hist_no_seek_comparison;
 
     for (auto prefix = FLAGS_total_prefixes;
-         prefix < FLAGS_total_prefixes + 10000;
-         prefix++) {
+         prefix < FLAGS_total_prefixes + 10000; prefix++) {
       TestKey test_key(prefix, 0);
       std::string s;
       Slice key = TestKeyToSlice(s, test_key);
@@ -668,7 +662,8 @@ TEST_F(PrefixTest, DynamicPrefixIterator) {
       StopWatchNano timer(SystemClock::Default().get(), true);
       iter->Seek(key);
       hist_no_seek_time.Add(timer.ElapsedNanos());
-      hist_no_seek_comparison.Add(get_perf_context()->user_key_comparison_count);
+      hist_no_seek_comparison.Add(
+          get_perf_context()->user_key_comparison_count);
       ASSERT_TRUE(!iter->Valid());
       ASSERT_OK(iter->status());
     }

db/range_del_aggregator.cc

@@ -502,7 +502,7 @@ class TruncatedRangeDelMergingIter : public InternalIterator {
   size_t ts_sz_;
 };
 
-}  // namespace
+}  // anonymous namespace
 
 std::unique_ptr<FragmentedRangeTombstoneIterator>
 CompactionRangeDelAggregator::NewIterator(const Slice* lower_bound,

db/range_del_aggregator_test.cc

@@ -192,7 +192,7 @@ void VerifyFragmentedRangeDels(
   EXPECT_FALSE(iter->Valid());
 }
 
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(RangeDelAggregatorTest, EmptyTruncatedIter) {
   auto range_del_iter = MakeRangeDelIter({});

db/repair.cc

@@ -332,7 +332,8 @@ class Repairer {
   void ConvertLogFilesToTables() {
     const auto& wal_dir = immutable_db_options_.GetWalDir();
     for (size_t i = 0; i < logs_.size(); i++) {
-      // we should use LogFileName(wal_dir, logs_[i]) here. user might uses wal_dir option.
+      // we should use LogFileName(wal_dir, logs_[i]) here. user might uses
+      // wal_dir option.
       std::string logname = LogFileName(wal_dir, logs_[i]);
       Status status = ConvertLogToTable(wal_dir, logs_[i]);
       if (!status.ok()) {
@@ -393,8 +394,8 @@ class Repairer {
     int counter = 0;
     while (reader.ReadRecord(&record, &scratch)) {
       if (record.size() < WriteBatchInternal::kHeader) {
-        reporter.Corruption(
-            record.size(), Status::Corruption("log record too small"));
+        reporter.Corruption(record.size(),
+                            Status::Corruption("log record too small"));
         continue;
       }
       Status record_status = WriteBatchInternal::SetContents(&batch, record);
@@ -715,8 +716,7 @@ Status GetDefaultCFOptions(
 }  // anonymous namespace
 
 Status RepairDB(const std::string& dbname, const DBOptions& db_options,
-                const std::vector<ColumnFamilyDescriptor>& column_families
-                ) {
+                const std::vector<ColumnFamilyDescriptor>& column_families) {
   ColumnFamilyOptions default_cf_opts;
   Status status = GetDefaultCFOptions(column_families, &default_cf_opts);
   if (!status.ok()) {
@@ -756,8 +756,7 @@ Status RepairDB(const std::string& dbname, const Options& options) {
   DBOptions db_options(opts);
   ColumnFamilyOptions cf_options(opts);
 
-  Repairer repairer(dbname, db_options,
-                    {}, cf_options /* default_cf_opts */,
+  Repairer repairer(dbname, db_options, {}, cf_options /* default_cf_opts */,
                     cf_options /* unknown_cf_opts */,
                     true /* create_unknown_cfs */);
   Status status = repairer.Run();

db/repair_test.cc

@@ -387,8 +387,7 @@ TEST_F(RepairTest, RepairColumnFamilyOptions) {
   ASSERT_EQ(fname_to_props.size(), 2U);
   for (const auto& fname_and_props : fname_to_props) {
     std::string comparator_name(rev_opts.comparator->Name());
-    ASSERT_EQ(comparator_name,
-              fname_and_props.second->comparator_name);
+    ASSERT_EQ(comparator_name, fname_and_props.second->comparator_name);
   }
   Close();
 

db/snapshot_impl.cc

@@ -3,14 +3,13 @@
 //  COPYING file in the root directory) and Apache 2.0 License
 //  (found in the LICENSE.Apache file in the root directory).
 
-#include "rocksdb/snapshot.h"
-
 #include "rocksdb/db.h"
+#include "rocksdb/snapshot.h"
 
 namespace ROCKSDB_NAMESPACE {
 
-ManagedSnapshot::ManagedSnapshot(DB* db) : db_(db),
-                                           snapshot_(db->GetSnapshot()) {}
+ManagedSnapshot::ManagedSnapshot(DB* db)
+    : db_(db), snapshot_(db->GetSnapshot()) {}
 
 ManagedSnapshot::ManagedSnapshot(DB* db, const Snapshot* _snapshot)
     : db_(db), snapshot_(_snapshot) {}

db/snapshot_impl.h

@@ -72,8 +72,14 @@ class SnapshotList {
     assert(list_.next_ != &list_ || 0 == count_);
     return list_.next_ == &list_;
   }
-  SnapshotImpl* oldest() const { assert(!empty()); return list_.next_; }
-  SnapshotImpl* newest() const { assert(!empty()); return list_.prev_; }
+  SnapshotImpl* oldest() const {
+    assert(!empty());
+    return list_.next_;
+  }
+  SnapshotImpl* newest() const {
+    assert(!empty());
+    return list_.prev_;
+  }
 
   SnapshotImpl* New(SnapshotImpl* s, SequenceNumber seq, uint64_t unix_time,
                     bool is_write_conflict_boundary,

db/table_cache.cc

@@ -38,7 +38,7 @@ static void DeleteEntry(const Slice& /*key*/, void* value) {
   T* typed_value = reinterpret_cast<T*>(value);
   delete typed_value;
 }
-}  // namespace
+}  // anonymous namespace
 }  // namespace ROCKSDB_NAMESPACE
 
 // Generate the regular and coroutine versions of some methods by
@@ -79,7 +79,7 @@ void AppendVarint64(IterKey* key, uint64_t v) {
 
 #endif  // ROCKSDB_LITE
 
-}  // namespace
+}  // anonymous namespace
 
 const int kLoadConcurency = 128;
 
@@ -103,8 +103,7 @@ TableCache::TableCache(const ImmutableOptions& ioptions,
   }
 }
 
-TableCache::~TableCache() {
-}
+TableCache::~TableCache() {}
 
 TableReader* TableCache::GetTableReaderFromHandle(Cache::Handle* handle) {
   return reinterpret_cast<TableReader*>(cache_->Value(handle));

db/table_properties_collector.cc

@@ -27,7 +27,7 @@ uint64_t GetUint64Property(const UserCollectedProperties& props,
   return GetVarint64(&raw, &val) ? val : 0;
 }
 
-}  // namespace
+}  // anonymous namespace
 
 Status UserKeyTablePropertiesCollector::InternalAdd(const Slice& key,
                                                     const Slice& value,
@@ -54,13 +54,12 @@ Status UserKeyTablePropertiesCollector::Finish(
   return collector_->Finish(properties);
 }
 
-UserCollectedProperties
-UserKeyTablePropertiesCollector::GetReadableProperties() const {
+UserCollectedProperties UserKeyTablePropertiesCollector::GetReadableProperties()
+    const {
   return collector_->GetReadableProperties();
 }
 
-uint64_t GetDeletedKeys(
-    const UserCollectedProperties& props) {
+uint64_t GetDeletedKeys(const UserCollectedProperties& props) {
   bool property_present_ignored;
   return GetUint64Property(props, TablePropertiesNames::kDeletedKeys,
                            &property_present_ignored);
@@ -68,8 +67,8 @@ uint64_t GetDeletedKeys(
 
 uint64_t GetMergeOperands(const UserCollectedProperties& props,
                           bool* property_present) {
-  return GetUint64Property(
-      props, TablePropertiesNames::kMergeOperands, property_present);
+  return GetUint64Property(props, TablePropertiesNames::kMergeOperands,
+                           property_present);
 }
 
 }  // namespace ROCKSDB_NAMESPACE

db/transaction_log_impl.cc

@@ -62,8 +62,7 @@ Status TransactionLogIteratorImpl::OpenLogFile(
       //  If cannot open file in DB directory.
       //  Try the archive dir, as it could have moved in the meanwhile.
       fname = ArchivedLogFileName(dir_, log_file->LogNumber());
-      s = fs->NewSequentialFile(fname, optimized_env_options,
-                                &file, nullptr);
+      s = fs->NewSequentialFile(fname, optimized_env_options, &file, nullptr);
     }
   }
   if (s.ok()) {
@@ -124,8 +123,8 @@ void TransactionLogIteratorImpl::SeekToStartSequence(uint64_t start_file_index,
   }
   while (RestrictedRead(&record)) {
     if (record.size() < WriteBatchInternal::kHeader) {
-      reporter_.Corruption(
-        record.size(), Status::Corruption("very small log record"));
+      reporter_.Corruption(record.size(),
+                           Status::Corruption("very small log record"));
       continue;
     }
     UpdateCurrentWriteBatch(record);
@@ -137,7 +136,8 @@ void TransactionLogIteratorImpl::SeekToStartSequence(uint64_t start_file_index,
         reporter_.Info(current_status_.ToString().c_str());
         return;
       } else if (strict) {
-        reporter_.Info("Could seek required sequence number. Iterator will "
+        reporter_.Info(
+            "Could seek required sequence number. Iterator will "
             "continue.");
       }
       is_valid_ = true;
@@ -189,8 +189,8 @@ void TransactionLogIteratorImpl::NextImpl(bool internal) {
     }
     while (RestrictedRead(&record)) {
       if (record.size() < WriteBatchInternal::kHeader) {
-        reporter_.Corruption(
-          record.size(), Status::Corruption("very small log record"));
+        reporter_.Corruption(record.size(),
+                             Status::Corruption("very small log record"));
         continue;
       } else {
         // started_ should be true if called by application

db/transaction_log_impl.h

@@ -23,12 +23,11 @@ namespace ROCKSDB_NAMESPACE {
 class LogFileImpl : public LogFile {
  public:
   LogFileImpl(uint64_t logNum, WalFileType logType, SequenceNumber startSeq,
-              uint64_t sizeBytes) :
-    logNumber_(logNum),
+              uint64_t sizeBytes)
+      : logNumber_(logNum),
         type_(logType),
         startSequence_(startSeq),
-    sizeFileBytes_(sizeBytes) {
-  }
+        sizeFileBytes_(sizeBytes) {}
 
   std::string PathName() const override {
     if (type_ == kArchivedLogFile) {
@@ -54,7 +53,6 @@ class LogFileImpl : public LogFile {
   WalFileType type_;
   SequenceNumber startSequence_;
   uint64_t sizeFileBytes_;
-
 };
 
 class TransactionLogIteratorImpl : public TransactionLogIterator {

db/trim_history_scheduler.h

@@ -6,8 +6,10 @@
 #pragma once
 
 #include <stdint.h>
+
 #include <atomic>
 #include <mutex>
+
 #include "util/autovector.h"
 
 namespace ROCKSDB_NAMESPACE {

db/version_edit.cc

@@ -20,9 +20,7 @@
 
 namespace ROCKSDB_NAMESPACE {
 
-namespace {
-
-}  // anonymous namespace
+namespace {}  // anonymous namespace
 
 uint64_t PackFileNumberAndPathId(uint64_t number, uint64_t path_id) {
   assert(number <= kFileNumberMask);
@@ -501,8 +499,7 @@ Status VersionEdit::DecodeFrom(const Slice& src) {
         break;
 
       case kCompactCursor:
-        if (GetLevel(&input, &level, &msg) &&
-            GetInternalKey(&input, &key)) {
+        if (GetLevel(&input, &level, &msg) && GetInternalKey(&input, &key)) {
           // Here we re-use the output format of compact pointer in LevelDB
           // to persist compact_cursors_
           compact_cursors_.push_back(std::make_pair(level, key));

db/version_edit.h

@@ -146,8 +146,8 @@ struct FileDescriptor {
     return packed_number_and_path_id & kFileNumberMask;
   }
   uint32_t GetPathId() const {
-    return static_cast<uint32_t>(
-        packed_number_and_path_id / (kFileNumberMask + 1));
+    return static_cast<uint32_t>(packed_number_and_path_id /
+                                 (kFileNumberMask + 1));
   }
   uint64_t GetFileSize() const { return file_size; }
 };
@@ -316,11 +316,7 @@ struct FdWithKeyRange {
   Slice largest_key;            // slice that contain largest key
 
   FdWithKeyRange()
-      : fd(),
-        file_metadata(nullptr),
-        smallest_key(),
-        largest_key() {
-  }
+      : fd(), file_metadata(nullptr), smallest_key(), largest_key() {}
 
   FdWithKeyRange(FileDescriptor _fd, Slice _smallest_key, Slice _largest_key,
                  FileMetaData* _file_metadata)

db/version_set.cc

@@ -93,23 +93,19 @@ namespace {
 // Find File in LevelFilesBrief data structure
 // Within an index range defined by left and right
 int FindFileInRange(const InternalKeyComparator& icmp,
-    const LevelFilesBrief& file_level,
-    const Slice& key,
-    uint32_t left,
-    uint32_t right) {
+                    const LevelFilesBrief& file_level, const Slice& key,
+                    uint32_t left, uint32_t right) {
   auto cmp = [&](const FdWithKeyRange& f, const Slice& k) -> bool {
     return icmp.InternalKeyComparator::Compare(f.largest_key, k) < 0;
   };
   const auto& b = file_level.files;
-  return static_cast<int>(std::lower_bound(b + left,
-                                           b + right, key, cmp) - b);
+  return static_cast<int>(std::lower_bound(b + left, b + right, key, cmp) - b);
 }
 
 Status OverlapWithIterator(const Comparator* ucmp,
                            const Slice& smallest_user_key,
                            const Slice& largest_user_key,
-    InternalIterator* iter,
-    bool* overlap) {
+                           InternalIterator* iter, bool* overlap) {
   InternalKey range_start(smallest_user_key, kMaxSequenceNumber,
                           kValueTypeForSeek);
   iter->Seek(range_start.Encode());
@@ -187,9 +183,9 @@ class FilePicker {
         // Do key range filtering of files or/and fractional cascading if:
         // (1) not all the files are in level 0, or
         // (2) there are more than 3 current level files
-        // If there are only 3 or less current level files in the system, we skip
-        // the key range filtering. In this case, more likely, the system is
-        // highly tuned to minimize number of tables queried by each query,
+        // If there are only 3 or less current level files in the system, we
+        // skip the key range filtering. In this case, more likely, the system
+        // is highly tuned to minimize number of tables queried by each query,
         // so it is unlikely that key range filtering is more efficient than
         // querying the files.
         if (num_levels_ > 1 || curr_file_level_->num_files > 3) {
@@ -211,11 +207,9 @@ class FilePicker {
           // Setup file search bound for the next level based on the
           // comparison results
           if (curr_level_ > 0) {
-            file_indexer_->GetNextLevelIndex(curr_level_,
-                                            curr_index_in_curr_level_,
-                                            cmp_smallest, cmp_largest,
-                                            &search_left_bound_,
-                                            &search_right_bound_);
+            file_indexer_->GetNextLevelIndex(
+                curr_level_, curr_index_in_curr_level_, cmp_smallest,
+                cmp_largest, &search_left_bound_, &search_right_bound_);
           }
           // Key falls out of current file's range
           if (cmp_smallest < 0 || cmp_largest > 0) {
@@ -846,8 +840,7 @@ Version::~Version() {
 }
 
 int FindFile(const InternalKeyComparator& icmp,
-             const LevelFilesBrief& file_level,
-             const Slice& key) {
+             const LevelFilesBrief& file_level, const Slice& key) {
   return FindFileInRange(icmp, file_level, key, 0,
                          static_cast<uint32_t>(file_level.num_files));
 }
@@ -882,24 +875,23 @@ void DoGenerateLevelFilesBrief(LevelFilesBrief* file_level,
   }
 }
 
-static bool AfterFile(const Comparator* ucmp,
-                      const Slice* user_key, const FdWithKeyRange* f) {
+static bool AfterFile(const Comparator* ucmp, const Slice* user_key,
+                      const FdWithKeyRange* f) {
   // nullptr user_key occurs before all keys and is therefore never after *f
   return (user_key != nullptr &&
           ucmp->CompareWithoutTimestamp(*user_key,
                                         ExtractUserKey(f->largest_key)) > 0);
 }
 
-static bool BeforeFile(const Comparator* ucmp,
-                       const Slice* user_key, const FdWithKeyRange* f) {
+static bool BeforeFile(const Comparator* ucmp, const Slice* user_key,
+                       const FdWithKeyRange* f) {
   // nullptr user_key occurs after all keys and is therefore never before *f
   return (user_key != nullptr &&
           ucmp->CompareWithoutTimestamp(*user_key,
                                         ExtractUserKey(f->smallest_key)) < 0);
 }
 
-bool SomeFileOverlapsRange(
-    const InternalKeyComparator& icmp,
+bool SomeFileOverlapsRange(const InternalKeyComparator& icmp,
                            bool disjoint_sorted_files,
                            const LevelFilesBrief& file_level,
                            const Slice* smallest_user_key,
@@ -1025,9 +1017,7 @@ class LevelIterator final : public InternalIterator {
     return file_iter_.iter() ? file_iter_.status() : Status::OK();
   }
 
-  bool PrepareValue() override {
-    return file_iter_.PrepareValue();
-  }
+  bool PrepareValue() override { return file_iter_.PrepareValue(); }
 
   inline bool MayBeOutOfLowerBound() override {
     assert(Valid());
@@ -1561,8 +1551,7 @@ Status Version::GetTableProperties(std::shared_ptr<const TableProperties>* tp,
   if (fname != nullptr) {
     file_name = *fname;
   } else {
-    file_name =
-      TableFileName(ioptions->cf_paths, file_meta->fd.GetNumber(),
+    file_name = TableFileName(ioptions->cf_paths, file_meta->fd.GetNumber(),
                               file_meta->fd.GetPathId());
   }
   s = ioptions->fs->NewRandomAccessFile(file_name, file_options_, &file,
@@ -1690,8 +1679,8 @@ Status Version::GetPropertiesOfTablesInRange(
                                          false);
       for (const auto& file_meta : files) {
         auto fname =
-            TableFileName(cfd_->ioptions()->cf_paths,
-                          file_meta->fd.GetNumber(), file_meta->fd.GetPathId());
+            TableFileName(cfd_->ioptions()->cf_paths, file_meta->fd.GetNumber(),
+                          file_meta->fd.GetPathId());
         if (props->count(fname) == 0) {
           // 1. If the table is already present in table cache, load table
           // properties from there.
@@ -1788,8 +1777,7 @@ void Version::GetColumnFamilyMetaData(ColumnFamilyMetaData* cf_meta) {
       files.back().num_deletions = file->num_deletions;
       level_size += file->fd.GetFileSize();
     }
-    cf_meta->levels.emplace_back(
-        level, level_size, std::move(files));
+    cf_meta->levels.emplace_back(level, level_size, std::move(files));
     cf_meta->size += level_size;
   }
   for (const auto& meta : vstorage->GetBlobFiles()) {
@@ -1880,10 +1868,8 @@ uint64_t VersionStorageInfo::GetEstimatedActiveKeys() const {
 
   if (current_num_samples_ < file_count) {
     // casting to avoid overflowing
-    return
-      static_cast<uint64_t>(
-        (est * static_cast<double>(file_count) / current_num_samples_)
-      );
+    return static_cast<uint64_t>(
+        (est * static_cast<double>(file_count) / current_num_samples_));
   } else {
     return est;
   }
@@ -2020,8 +2006,8 @@ Status Version::OverlapWithLevelIterator(const ReadOptions& read_options,
           /*smallest_compaction_key=*/nullptr,
           /*largest_compaction_key=*/nullptr,
           /*allow_unprepared_value=*/false));
-      status = OverlapWithIterator(
-          ucmp, smallest_user_key, largest_user_key, iter.get(), overlap);
+      status = OverlapWithIterator(ucmp, smallest_user_key, largest_user_key,
+                                   iter.get(), overlap);
       if (!status.ok() || *overlap) {
         break;
       }
@@ -2035,8 +2021,8 @@ Status Version::OverlapWithLevelIterator(const ReadOptions& read_options,
         cfd_->internal_stats()->GetFileReadHist(level),
         TableReaderCaller::kUserIterator, IsFilterSkipped(level), level,
         &range_del_agg));
-    status = OverlapWithIterator(
-        ucmp, smallest_user_key, largest_user_key, iter.get(), overlap);
+    status = OverlapWithIterator(ucmp, smallest_user_key, largest_user_key,
+                                 iter.get(), overlap);
   }
 
   if (status.ok() && *overlap == false &&
@@ -2905,8 +2891,8 @@ bool Version::IsFilterSkipped(int level, bool is_file_last_in_level) {
 void VersionStorageInfo::GenerateLevelFilesBrief() {
   level_files_brief_.resize(num_non_empty_levels_);
   for (int level = 0; level < num_non_empty_levels_; level++) {
-    DoGenerateLevelFilesBrief(
-        &level_files_brief_[level], files_[level], &arena_);
+    DoGenerateLevelFilesBrief(&level_files_brief_[level], files_[level],
+                              &arena_);
   }
 }
 
@@ -2940,8 +2926,7 @@ void Version::PrepareAppend(const MutableCFOptions& mutable_cf_options,
 }
 
 bool Version::MaybeInitializeFileMetaData(FileMetaData* file_meta) {
-  if (file_meta->init_stats_from_file ||
-      file_meta->compensated_file_size > 0) {
+  if (file_meta->init_stats_from_file || file_meta->compensated_file_size > 0) {
     return false;
   }
   std::shared_ptr<const TableProperties> tp;
@@ -3806,7 +3791,7 @@ void SortFileByRoundRobin(const InternalKeyComparator& icmp,
     }
   }
 }
-}  // namespace
+}  // anonymous namespace
 
 void VersionStorageInfo::UpdateFilesByCompactionPri(
     const ImmutableOptions& ioptions, const MutableCFOptions& options) {
@@ -3978,9 +3963,7 @@ void VersionStorageInfo::ComputeBottommostFilesMarkedForCompaction() {
   }
 }
 
-void Version::Ref() {
-  ++refs_;
-}
+void Version::Ref() { ++refs_; }
 
 bool Version::Unref() {
   assert(refs_ >= 1);
@@ -4112,9 +4095,8 @@ void VersionStorageInfo::GetCleanInputsWithinInterval(
     return;
   }
 
-  GetOverlappingInputsRangeBinarySearch(level, begin, end, inputs,
-                                        hint_index, file_index,
-                                        true /* within_interval */);
+  GetOverlappingInputsRangeBinarySearch(level, begin, end, inputs, hint_index,
+                                        file_index, true /* within_interval */);
 }
 
 // Store in "*inputs" all files in "level" that overlap [begin,end]
@@ -4277,8 +4259,7 @@ const char* VersionStorageInfo::LevelFileSummary(FileSummaryStorage* scratch,
                        "#%" PRIu64 "(seq=%" PRIu64 ",sz=%s,%d) ",
                        f->fd.GetNumber(), f->fd.smallest_seqno, sztxt,
                        static_cast<int>(f->being_compacted));
-    if (ret < 0 || ret >= sz)
-      break;
+    if (ret < 0 || ret >= sz) break;
     len += ret;
   }
   // overwrite the last space (only if files_[level].size() is non-zero)
@@ -4456,8 +4437,8 @@ uint64_t VersionStorageInfo::EstimateLiveDataSize() const {
       // no potential overlap, we can safely insert the rest of this level
       // (if the level is not 0) into the map without checking again because
       // the elements in the level are sorted and non-overlapping.
-      auto lb = (found_end && l != 0) ?
-        ranges.end() : ranges.lower_bound(&file->smallest);
+      auto lb = (found_end && l != 0) ? ranges.end()
+                                      : ranges.lower_bound(&file->smallest);
       found_end = (lb == ranges.end());
       if (found_end || internal_comparator_->Compare(
                            file->largest, (*lb).second->smallest) < 0) {
@@ -5674,7 +5655,7 @@ std::string ManifestPicker::GetNextManifest(uint64_t* number,
   }
   return ret;
 }
-}  // namespace
+}  // anonymous namespace
 
 Status VersionSet::TryRecover(
     const std::vector<ColumnFamilyDescriptor>& column_families, bool read_only,
@@ -5885,9 +5866,9 @@ Status VersionSet::ReduceNumberOfLevels(const std::string& dbname,
   VersionEdit ve;
   InstrumentedMutex dummy_mutex;
   InstrumentedMutexLock l(&dummy_mutex);
-  return versions.LogAndApply(
-      versions.GetColumnFamilySet()->GetDefault(),
-      mutable_cf_options, &ve, &dummy_mutex, nullptr, true);
+  return versions.LogAndApply(versions.GetColumnFamilySet()->GetDefault(),
+                              mutable_cf_options, &ve, &dummy_mutex, nullptr,
+                              true);
 }
 
 // Get the checksum information including the checksum and checksum function
@@ -5973,9 +5954,7 @@ Status VersionSet::DumpManifest(Options& options, std::string& dscname,
     std::unique_ptr<FSSequentialFile> file;
     const std::shared_ptr<FileSystem>& fs = options.env->GetFileSystem();
     s = fs->NewSequentialFile(
-        dscname,
-        fs->OptimizeForManifestRead(file_options_), &file,
-        nullptr);
+        dscname, fs->OptimizeForManifestRead(file_options_), &file, nullptr);
     if (!s.ok()) {
       return s;
     }
@@ -6078,8 +6057,8 @@ Status VersionSet::WriteCurrentStateToManifest(
           cfd->internal_comparator().user_comparator()->Name());
       std::string record;
       if (!edit.EncodeTo(&record)) {
-        return Status::Corruption(
-            "Unable to Encode VersionEdit:" + edit.DebugString(true));
+        return Status::Corruption("Unable to Encode VersionEdit:" +
+                                  edit.DebugString(true));
       }
       io_s = log->AddRecord(record);
       if (!io_s.ok()) {
@@ -6137,9 +6116,10 @@ Status VersionSet::WriteCurrentStateToManifest(
       edit.SetLogNumber(log_number);
 
       if (cfd->GetID() == 0) {
-        // min_log_number_to_keep is for the whole db, not for specific column family.
-        // So it does not need to be set for every column family, just need to be set once.
-        // Since default CF can never be dropped, we set the min_log to the default CF here.
+        // min_log_number_to_keep is for the whole db, not for specific column
+        // family. So it does not need to be set for every column family, just
+        // need to be set once. Since default CF can never be dropped, we set
+        // the min_log to the default CF here.
         uint64_t min_log = min_log_number_to_keep();
         if (min_log != 0) {
           edit.SetMinLogNumberToKeep(min_log);
@@ -6155,8 +6135,8 @@ Status VersionSet::WriteCurrentStateToManifest(
 
       std::string record;
       if (!edit.EncodeTo(&record)) {
-        return Status::Corruption(
-            "Unable to Encode VersionEdit:" + edit.DebugString(true));
+        return Status::Corruption("Unable to Encode VersionEdit:" +
+                                  edit.DebugString(true));
       }
       io_s = log->AddRecord(record);
       if (!io_s.ok()) {
@@ -6588,8 +6568,8 @@ void VersionSet::GetLiveFilesMetaData(std::vector<LiveFileMetaData>* metadata) {
         filemetadata.largestkey = file->largest.user_key().ToString();
         filemetadata.smallest_seqno = file->fd.smallest_seqno;
         filemetadata.largest_seqno = file->fd.largest_seqno;
-        filemetadata.num_reads_sampled = file->stats.num_reads_sampled.load(
-            std::memory_order_relaxed);
+        filemetadata.num_reads_sampled =
+            file->stats.num_reads_sampled.load(std::memory_order_relaxed);
         filemetadata.being_compacted = file->being_compacted;
         filemetadata.num_entries = file->num_entries;
         filemetadata.num_deletions = file->num_deletions;

db/version_set.h

@@ -230,9 +230,7 @@ class VersionStorageInfo {
       double blob_garbage_collection_age_cutoff,
       double blob_garbage_collection_force_threshold);
 
-  bool level0_non_overlapping() const {
-    return level0_non_overlapping_;
-  }
+  bool level0_non_overlapping() const { return level0_non_overlapping_; }
 
   // Updates the oldest snapshot and related internal state, like the bottommost
   // files marked for compaction.
@@ -814,8 +812,8 @@ class Version {
 
   Status OverlapWithLevelIterator(const ReadOptions&, const FileOptions&,
                                   const Slice& smallest_user_key,
-                                  const Slice& largest_user_key,
-                                  int level, bool* overlap);
+                                  const Slice& largest_user_key, int level,
+                                  bool* overlap);
 
   // Lookup the value for key or get all merge operands for key.
   // If do_merge = true (default) then lookup value for key.

db/version_set_test.cc

@@ -481,7 +481,8 @@ TEST_F(VersionStorageInfoTest, EstimateLiveDataSize2) {
 
 TEST_F(VersionStorageInfoTest, GetOverlappingInputs) {
   // Two files that overlap at the range deletion tombstone sentinel.
-  Add(1, 1U, {"a", 0, kTypeValue}, {"b", kMaxSequenceNumber, kTypeRangeDeletion}, 1);
+  Add(1, 1U, {"a", 0, kTypeValue},
+      {"b", kMaxSequenceNumber, kTypeRangeDeletion}, 1);
   Add(1, 2U, {"b", 0, kTypeValue}, {"c", 0, kTypeValue}, 1);
   // Two files that overlap at the same user key.
   Add(1, 3U, {"d", 0, kTypeValue}, {"e", kMaxSequenceNumber, kTypeValue}, 1);
@@ -492,24 +493,26 @@ TEST_F(VersionStorageInfoTest, GetOverlappingInputs) {
 
   UpdateVersionStorageInfo();
 
-  ASSERT_EQ("1,2", GetOverlappingFiles(
-      1, {"a", 0, kTypeValue}, {"b", 0, kTypeValue}));
-  ASSERT_EQ("1", GetOverlappingFiles(
-      1, {"a", 0, kTypeValue}, {"b", kMaxSequenceNumber, kTypeRangeDeletion}));
-  ASSERT_EQ("2", GetOverlappingFiles(
-      1, {"b", kMaxSequenceNumber, kTypeValue}, {"c", 0, kTypeValue}));
-  ASSERT_EQ("3,4", GetOverlappingFiles(
-      1, {"d", 0, kTypeValue}, {"e", 0, kTypeValue}));
-  ASSERT_EQ("3", GetOverlappingFiles(
-      1, {"d", 0, kTypeValue}, {"e", kMaxSequenceNumber, kTypeRangeDeletion}));
-  ASSERT_EQ("3,4", GetOverlappingFiles(
-      1, {"e", kMaxSequenceNumber, kTypeValue}, {"f", 0, kTypeValue}));
-  ASSERT_EQ("3,4", GetOverlappingFiles(
-      1, {"e", 0, kTypeValue}, {"f", 0, kTypeValue}));
-  ASSERT_EQ("5", GetOverlappingFiles(
-      1, {"g", 0, kTypeValue}, {"h", 0, kTypeValue}));
-  ASSERT_EQ("6", GetOverlappingFiles(
-      1, {"i", 0, kTypeValue}, {"j", 0, kTypeValue}));
+  ASSERT_EQ("1,2",
+            GetOverlappingFiles(1, {"a", 0, kTypeValue}, {"b", 0, kTypeValue}));
+  ASSERT_EQ("1",
+            GetOverlappingFiles(1, {"a", 0, kTypeValue},
+                                {"b", kMaxSequenceNumber, kTypeRangeDeletion}));
+  ASSERT_EQ("2", GetOverlappingFiles(1, {"b", kMaxSequenceNumber, kTypeValue},
+                                     {"c", 0, kTypeValue}));
+  ASSERT_EQ("3,4",
+            GetOverlappingFiles(1, {"d", 0, kTypeValue}, {"e", 0, kTypeValue}));
+  ASSERT_EQ("3",
+            GetOverlappingFiles(1, {"d", 0, kTypeValue},
+                                {"e", kMaxSequenceNumber, kTypeRangeDeletion}));
+  ASSERT_EQ("3,4", GetOverlappingFiles(1, {"e", kMaxSequenceNumber, kTypeValue},
+                                       {"f", 0, kTypeValue}));
+  ASSERT_EQ("3,4",
+            GetOverlappingFiles(1, {"e", 0, kTypeValue}, {"f", 0, kTypeValue}));
+  ASSERT_EQ("5",
+            GetOverlappingFiles(1, {"g", 0, kTypeValue}, {"h", 0, kTypeValue}));
+  ASSERT_EQ("6",
+            GetOverlappingFiles(1, {"i", 0, kTypeValue}, {"j", 0, kTypeValue}));
 }
 
 TEST_F(VersionStorageInfoTest, FileLocationAndMetaDataByNumber) {
@@ -944,8 +947,8 @@ class FindLevelFileTest : public testing::Test {
     Slice smallest_slice = smallest_key.Encode();
     Slice largest_slice = largest_key.Encode();
 
-    char* mem = arena_.AllocateAligned(
-        smallest_slice.size() + largest_slice.size());
+    char* mem =
+        arena_.AllocateAligned(smallest_slice.size() + largest_slice.size());
     memcpy(mem, smallest_slice.data(), smallest_slice.size());
     memcpy(mem + smallest_slice.size(), largest_slice.data(),
            largest_slice.size());
@@ -955,8 +958,7 @@ class FindLevelFileTest : public testing::Test {
     auto& file = file_level_.files[num];
     file.fd = FileDescriptor(num + 1, 0, 0);
     file.smallest_key = Slice(mem, smallest_slice.size());
-    file.largest_key = Slice(mem + smallest_slice.size(),
-        largest_slice.size());
+    file.largest_key = Slice(mem + smallest_slice.size(), largest_slice.size());
     file_level_.num_files++;
   }
 

db/wal_manager.cc

@@ -355,7 +355,8 @@ Status WalManager::RetainProbableWalFiles(VectorLogPtr& all_logs,
   // Binary Search. avoid opening all files.
   while (end >= start) {
     int64_t mid = start + (end - start) / 2;  // Avoid overflow.
-    SequenceNumber current_seq_num = all_logs.at(static_cast<size_t>(mid))->StartSequence();
+    SequenceNumber current_seq_num =
+        all_logs.at(static_cast<size_t>(mid))->StartSequence();
     if (current_seq_num == target) {
       end = mid;
       break;
@@ -366,7 +367,8 @@ Status WalManager::RetainProbableWalFiles(VectorLogPtr& all_logs,
     }
   }
   // end could be -ve.
-  size_t start_index = static_cast<size_t>(std::max(static_cast<int64_t>(0), end));
+  size_t start_index =
+      static_cast<size_t>(std::max(static_cast<int64_t>(0), end));
   // The last wal file is always included
   all_logs.erase(all_logs.begin(), all_logs.begin() + start_index);
   return Status::OK();
@@ -468,9 +470,8 @@ Status WalManager::ReadFirstLine(const std::string& fname,
   };
 
   std::unique_ptr<FSSequentialFile> file;
-  Status status = fs_->NewSequentialFile(fname,
-                                         fs_->OptimizeForLogRead(file_options_),
-                                         &file, nullptr);
+  Status status = fs_->NewSequentialFile(
+      fname, fs_->OptimizeForLogRead(file_options_), &file, nullptr);
   std::unique_ptr<SequentialFileReader> file_reader(
       new SequentialFileReader(std::move(file), fname, io_tracer_));
 

db/wal_manager.h

@@ -11,11 +11,11 @@
 #include <atomic>
 #include <deque>
 #include <limits>
+#include <memory>
 #include <set>
+#include <string>
 #include <utility>
 #include <vector>
-#include <string>
-#include <memory>
 
 #include "db/version_set.h"
 #include "file/file_util.h"

db/wal_manager_test.cc

@@ -88,7 +88,8 @@ class WalManagerTest : public testing::Test {
     std::unique_ptr<WritableFileWriter> file_writer;
     ASSERT_OK(WritableFileWriter::Create(fs, fname, env_options_, &file_writer,
                                          nullptr));
-    current_log_writer_.reset(new log::Writer(std::move(file_writer), 0, false));
+    current_log_writer_.reset(
+        new log::Writer(std::move(file_writer), 0, false));
   }
 
   void CreateArchiveLogs(int num_logs, int entries_per_log) {
@@ -215,7 +216,7 @@ int CountRecords(TransactionLogIterator* iter) {
   EXPECT_OK(iter->status());
   return count;
 }
-}  // namespace
+}  // anonymous namespace
 
 TEST_F(WalManagerTest, WALArchivalSizeLimit) {
   db_options_.WAL_ttl_seconds = 0;

db/write_batch.cc

@@ -158,7 +158,7 @@ struct BatchContentClassifier : public WriteBatch::Handler {
   }
 };
 
-}  // anon namespace
+}  // anonymous namespace
 
 struct SavePoints {
   std::stack<SavePoint, autovector<SavePoint>> stack;
@@ -240,9 +240,7 @@ void WriteBatch::Handler::LogData(const Slice& /*blob*/) {
   // them.
 }
 
-bool WriteBatch::Handler::Continue() {
-  return true;
-}
+bool WriteBatch::Handler::Continue() { return true; }
 
 void WriteBatch::Clear() {
   rep_.clear();
@@ -779,7 +777,7 @@ Status CheckColumnFamilyTimestampSize(ColumnFamilyHandle* column_family,
   }
   return Status::OK();
 }
-}  // namespace
+}  // anonymous namespace
 
 Status WriteBatchInternal::Put(WriteBatch* b, uint32_t column_family_id,
                                const Slice& key, const Slice& value) {
@@ -1746,7 +1744,6 @@ Status WriteBatch::VerifyChecksum() const {
 namespace {
 
 class MemTableInserter : public WriteBatch::Handler {
-
   SequenceNumber sequence_;
   ColumnFamilyMemTables* const cf_mems_;
   FlushScheduler* const flush_scheduler_;
@@ -1818,8 +1815,8 @@ class MemTableInserter : public WriteBatch::Handler {
       new (&duplicate_detector_) DuplicateDetector(db_);
       dup_dectector_on_ = true;
     }
-    return reinterpret_cast<DuplicateDetector*>
-      (&duplicate_detector_)->IsDuplicateKeySeq(column_family_id, key, sequence_);
+    return reinterpret_cast<DuplicateDetector*>(&duplicate_detector_)
+        ->IsDuplicateKeySeq(column_family_id, key, sequence_);
   }
 
   const ProtectionInfoKVOC64* NextProtectionInfo() {
@@ -1895,12 +1892,11 @@ class MemTableInserter : public WriteBatch::Handler {
 
   ~MemTableInserter() override {
     if (dup_dectector_on_) {
-      reinterpret_cast<DuplicateDetector*>
-        (&duplicate_detector_)->~DuplicateDetector();
+      reinterpret_cast<DuplicateDetector*>(&duplicate_detector_)
+          ->~DuplicateDetector();
     }
     if (post_info_created_) {
-      reinterpret_cast<MemPostInfoMap*>
-        (&mem_post_info_map_)->~MemPostInfoMap();
+      reinterpret_cast<MemPostInfoMap*>(&mem_post_info_map_)->~MemPostInfoMap();
     }
     if (hint_created_) {
       for (auto iter : GetHintMap()) {
@@ -2864,7 +2860,7 @@ class MemTableInserter : public WriteBatch::Handler {
   }
 };
 
-}  // namespace
+}  // anonymous namespace
 
 // This function can only be called in these conditions:
 // 1) During Recovery()
@@ -3035,7 +3031,7 @@ class ProtectionInfoUpdater : public WriteBatch::Handler {
   WriteBatch::ProtectionInfo* const prot_info_ = nullptr;
 };
 
-}  // namespace
+}  // anonymous namespace
 
 Status WriteBatchInternal::SetContents(WriteBatch* b, const Slice& contents) {
   assert(contents.size() >= WriteBatchInternal::kHeader);

db/write_batch_internal.h

@@ -77,7 +77,6 @@ struct WriteBatch::ProtectionInfo {
 // WriteBatch that we don't want in the public WriteBatch interface.
 class WriteBatchInternal {
  public:
-
   // WriteBatch header has an 8-byte sequence number followed by a 4-byte count.
   static constexpr size_t kHeader = 12;
 
@@ -149,13 +148,9 @@ class WriteBatchInternal {
   // This offset is only valid if the batch is not empty.
   static size_t GetFirstOffset(WriteBatch* batch);
 
-  static Slice Contents(const WriteBatch* batch) {
-    return Slice(batch->rep_);
-  }
+  static Slice Contents(const WriteBatch* batch) { return Slice(batch->rep_); }
 
-  static size_t ByteSize(const WriteBatch* batch) {
-    return batch->rep_.size();
-  }
+  static size_t ByteSize(const WriteBatch* batch) { return batch->rep_.size(); }
 
   static Status SetContents(WriteBatch* batch, const Slice& contents);