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Add helper methods WideColumnsHelper::{Has,Get}DefaultColumn (#11813)

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Summary:
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11813

The patch adds a couple of helper methods `WideColumnsHelper::{Has,Get}DefaultColumn` to eliminate some code duplication.

Reviewed By: jaykorean

Differential Revision: D49166682

fbshipit-source-id: f229ca5b94599f7445a0112b10f8317292505c82
This commit is contained in:
Levi Tamasi 2023-09-11 16:32:32 -07:00 committed by Facebook GitHub Bot
parent 694e49cbb1
commit 8fc78a3a9e
11 changed files with 41 additions and 40 deletions
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6
db/db_iter.cc
View file

@ -18,6 +18,7 @@
#include "db/merge_helper.h"
#include "db/pinned_iterators_manager.h"
#include "db/wide/wide_column_serialization.h"
#include "db/wide/wide_columns_helper.h"
#include "file/filename.h"
#include "logging/logging.h"
#include "memory/arena.h"
@ -230,9 +231,8 @@ bool DBIter::SetValueAndColumnsFromEntity(Slice slice) {
return false;
}
if (!wide_columns_.empty() &&
wide_columns_[0].name() == kDefaultWideColumnName) {
value_ = wide_columns_[0].value();
if (WideColumnsHelper::HasDefaultColumn(wide_columns_)) {
value_ = WideColumnsHelper::GetDefaultColumn(wide_columns_);
}
return true;

3
db/merge_helper.cc
View file

@ -13,6 +13,7 @@
#include "db/compaction/compaction_iteration_stats.h"
#include "db/dbformat.h"
#include "db/wide/wide_column_serialization.h"
#include "db/wide/wide_columns_helper.h"
#include "logging/logging.h"
#include "monitoring/perf_context_imp.h"
#include "monitoring/statistics_impl.h"
@ -135,7 +136,7 @@ Status MergeHelper::TimedFullMergeWithEntity(
}
const bool has_default_column =
!base_columns.empty() && base_columns[0].name() == kDefaultWideColumnName;
WideColumnsHelper::HasDefaultColumn(base_columns);
Slice value_of_default;
if (has_default_column) {

4
db/merge_operator.cc
View file

@ -11,6 +11,7 @@
#include <type_traits>
#include "db/wide/wide_columns_helper.h"
#include "util/overload.h"
namespace ROCKSDB_NAMESPACE {
@ -63,8 +64,7 @@ bool MergeOperator::FullMergeV3(const MergeOperationInputV3& merge_in,
},
[&](const WideColumns& existing_columns) -> bool {
const bool has_default_column =
!existing_columns.empty() &&
existing_columns.front().name() == kDefaultWideColumnName;
WideColumnsHelper::HasDefaultColumn(existing_columns);
Slice value_of_default;
if (has_default_column) {

8
db/version_set.cc
View file

@ -39,6 +39,7 @@
#include "db/version_builder.h"
#include "db/version_edit.h"
#include "db/version_edit_handler.h"
#include "db/wide/wide_columns_helper.h"
#include "file/file_util.h"
#include "table/compaction_merging_iterator.h"
@ -2452,12 +2453,9 @@ void Version::Get(const ReadOptions& read_options, const LookupKey& k,
fp.GetHitFileLevel());
if (is_blob_index && do_merge && (value || columns)) {
assert(!columns ||
(!columns->columns().empty() &&
columns->columns().front().name() == kDefaultWideColumnName));
Slice blob_index =
value ? *value : columns->columns().front().value();
value ? *value
: WideColumnsHelper::GetDefaultColumn(columns->columns());
TEST_SYNC_POINT_CALLBACK("Version::Get::TamperWithBlobIndex",
&blob_index);

7
db/version_set_sync_and_async.h
View file

@ -113,12 +113,9 @@ DEFINE_SYNC_AND_ASYNC(Status, Version::MultiGetFromSST)
} else {
assert(iter->columns);
assert(!iter->columns->columns().empty());
assert(iter->columns->columns().front().name() ==
kDefaultWideColumnName);
tmp_s =
blob_index.DecodeFrom(iter->columns->columns().front().value());
tmp_s = blob_index.DecodeFrom(
WideColumnsHelper::GetDefaultColumn(iter->columns->columns()));
}
if (tmp_s.ok()) {

5
db/wide/wide_column_serialization.cc
View file

@ -9,6 +9,7 @@
#include <cassert>
#include <limits>
#include "db/wide/wide_columns_helper.h"
#include "rocksdb/slice.h"
#include "util/autovector.h"
#include "util/coding.h"
@ -169,12 +170,12 @@ Status WideColumnSerialization::GetValueOfDefaultColumn(Slice& input,
return s;
}
if (columns.empty() || columns[0].name() != kDefaultWideColumnName) {
if (!WideColumnsHelper::HasDefaultColumn(columns)) {
value.clear();
return Status::OK();
}
value = columns[0].value();
value = WideColumnsHelper::GetDefaultColumn(columns);
return Status::OK();
}

16
db/wide/wide_columns_helper.h
View file

@ -11,11 +11,23 @@
#include "rocksdb/wide_columns.h"
namespace ROCKSDB_NAMESPACE {
class WideColumnsHelper {
public:
static void DumpWideColumns(const WideColumns& columns, std::ostream& oss,
static void DumpWideColumns(const WideColumns& columns, std::ostream& os,
bool hex);
static Status DumpSliceAsWideColumns(const Slice& value, std::ostream& oss,
static Status DumpSliceAsWideColumns(const Slice& value, std::ostream& os,
bool hex);
static bool HasDefaultColumn(const WideColumns& columns) {
return !columns.empty() && columns.front().name() == kDefaultWideColumnName;
}
static const Slice& GetDefaultColumn(const WideColumns& columns) {
assert(HasDefaultColumn(columns));
return columns.front().value();
}
};
} // namespace ROCKSDB_NAMESPACE

8
db_stress_tool/db_stress_common.cc
View file

@ -296,15 +296,11 @@ bool VerifyWideColumns(const Slice& value, const WideColumns& columns) {
}
bool VerifyWideColumns(const WideColumns& columns) {
if (columns.empty()) {
if (!WideColumnsHelper::HasDefaultColumn(columns)) {
return false;
}
if (columns.front().name() != kDefaultWideColumnName) {
return false;
}
const Slice& value_of_default = columns.front().value();
const Slice& value_of_default = WideColumnsHelper::GetDefaultColumn(columns);
return VerifyWideColumns(value_of_default, columns);
}

9
db_stress_tool/expected_state.cc
View file

@ -6,8 +6,8 @@
#include <atomic>
#ifdef GFLAGS
#include "db/wide/wide_column_serialization.h"
#include "db/wide/wide_columns_helper.h"
#include "db_stress_tool/db_stress_common.h"
#include "db_stress_tool/db_stress_shared_state.h"
#include "db_stress_tool/expected_state.h"
@ -363,7 +363,6 @@ bool FileExpectedStateManager::HasHistory() {
return saved_seqno_ != kMaxSequenceNumber;
}
namespace {
// An `ExpectedStateTraceRecordHandler` applies a configurable number of
@ -462,10 +461,8 @@ class ExpectedStateTraceRecordHandler : public TraceRecord::Handler,
column_family_id, key, columns);
}
assert(!columns.empty());
assert(columns.front().name() == kDefaultWideColumnName);
const uint32_t value_base = GetValueBase(columns.front().value());
const uint32_t value_base =
GetValueBase(WideColumnsHelper::GetDefaultColumn(columns));
state_->SyncPut(column_family_id, static_cast<int64_t>(key_id), value_base);

13
db_stress_tool/no_batched_ops_stress.cc
View file

@ -9,6 +9,7 @@
#include "db_stress_tool/expected_state.h"
#ifdef GFLAGS
#include "db/wide/wide_columns_helper.h"
#include "db_stress_tool/db_stress_common.h"
#include "rocksdb/utilities/transaction_db.h"
#include "utilities/fault_injection_fs.h"
@ -165,9 +166,8 @@ class NonBatchedOpsStressTest : public StressTest {
if (s.ok()) {
const WideColumns& columns = result.columns();
if (!columns.empty() &&
columns.front().name() == kDefaultWideColumnName) {
from_db = columns.front().value().ToString();
if (WideColumnsHelper::HasDefaultColumn(columns)) {
from_db = WideColumnsHelper::GetDefaultColumn(columns).ToString();
}
if (!VerifyWideColumns(columns)) {
@ -251,9 +251,9 @@ class NonBatchedOpsStressTest : public StressTest {
if (statuses[j].ok()) {
const WideColumns& columns = results[j].columns();
if (!columns.empty() &&
columns.front().name() == kDefaultWideColumnName) {
from_db = columns.front().value().ToString();
if (WideColumnsHelper::HasDefaultColumn(columns)) {
from_db =
WideColumnsHelper::GetDefaultColumn(columns).ToString();
}
if (!VerifyWideColumns(columns)) {
@ -1276,7 +1276,6 @@ class NonBatchedOpsStressTest : public StressTest {
const size_t sz = GenerateValue(value_base, value, sizeof(value));
const Slice v(value, sz);
Status s;
if (FLAGS_use_merge) {

2
tools/ldb_cmd.cc
View file

@ -1087,7 +1087,7 @@ std::string LDBCommand::PrintKeyValueOrWideColumns(
bool is_key_hex, bool is_value_hex) {
if (wide_columns.empty() ||
(wide_columns.size() == 1 &&
wide_columns.front().name() == kDefaultWideColumnName)) {
WideColumnsHelper::HasDefaultColumn(wide_columns))) {
return PrintKeyValue(key.ToString(), value.ToString(), is_key_hex,
is_value_hex);
}