ae28634e9f
Summary: Closes https://github.com/facebook/rocksdb/pull/2608 Differential Revision: D5444797 Pulled By: siying fbshipit-source-id: 690581d03f37822e059a16085088e8e2d8a45016
144 lines
4.3 KiB
C++
144 lines
4.3 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
#include "table/mock_table.h"
|
|
|
|
#include "db/dbformat.h"
|
|
#include "port/port.h"
|
|
#include "rocksdb/table_properties.h"
|
|
#include "table/get_context.h"
|
|
#include "util/coding.h"
|
|
#include "util/file_reader_writer.h"
|
|
|
|
namespace rocksdb {
|
|
namespace mock {
|
|
|
|
namespace {
|
|
|
|
const InternalKeyComparator icmp_(BytewiseComparator());
|
|
|
|
} // namespace
|
|
|
|
stl_wrappers::KVMap MakeMockFile(
|
|
std::initializer_list<std::pair<const std::string, std::string>> l) {
|
|
return stl_wrappers::KVMap(l, stl_wrappers::LessOfComparator(&icmp_));
|
|
}
|
|
|
|
InternalIterator* MockTableReader::NewIterator(const ReadOptions&,
|
|
Arena* arena,
|
|
const InternalKeyComparator*,
|
|
bool skip_filters) {
|
|
return new MockTableIterator(table_);
|
|
}
|
|
|
|
Status MockTableReader::Get(const ReadOptions&, const Slice& key,
|
|
GetContext* get_context, bool skip_filters) {
|
|
std::unique_ptr<MockTableIterator> iter(new MockTableIterator(table_));
|
|
for (iter->Seek(key); iter->Valid(); iter->Next()) {
|
|
ParsedInternalKey parsed_key;
|
|
if (!ParseInternalKey(iter->key(), &parsed_key)) {
|
|
return Status::Corruption(Slice());
|
|
}
|
|
|
|
if (!get_context->SaveValue(parsed_key, iter->value())) {
|
|
break;
|
|
}
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
std::shared_ptr<const TableProperties> MockTableReader::GetTableProperties()
|
|
const {
|
|
return std::shared_ptr<const TableProperties>(new TableProperties());
|
|
}
|
|
|
|
MockTableFactory::MockTableFactory() : next_id_(1) {}
|
|
|
|
Status MockTableFactory::NewTableReader(
|
|
const TableReaderOptions& table_reader_options,
|
|
unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
|
|
unique_ptr<TableReader>* table_reader,
|
|
bool prefetch_index_and_filter_in_cache) const {
|
|
uint32_t id = GetIDFromFile(file.get());
|
|
|
|
MutexLock lock_guard(&file_system_.mutex);
|
|
|
|
auto it = file_system_.files.find(id);
|
|
if (it == file_system_.files.end()) {
|
|
return Status::IOError("Mock file not found");
|
|
}
|
|
|
|
table_reader->reset(new MockTableReader(it->second));
|
|
|
|
return Status::OK();
|
|
}
|
|
|
|
TableBuilder* MockTableFactory::NewTableBuilder(
|
|
const TableBuilderOptions& table_builder_options, uint32_t column_family_id,
|
|
WritableFileWriter* file) const {
|
|
uint32_t id = GetAndWriteNextID(file);
|
|
|
|
return new MockTableBuilder(id, &file_system_);
|
|
}
|
|
|
|
Status MockTableFactory::CreateMockTable(Env* env, const std::string& fname,
|
|
stl_wrappers::KVMap file_contents) {
|
|
std::unique_ptr<WritableFile> file;
|
|
auto s = env->NewWritableFile(fname, &file, EnvOptions());
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
|
|
WritableFileWriter file_writer(std::move(file), EnvOptions());
|
|
|
|
uint32_t id = GetAndWriteNextID(&file_writer);
|
|
file_system_.files.insert({id, std::move(file_contents)});
|
|
return Status::OK();
|
|
}
|
|
|
|
uint32_t MockTableFactory::GetAndWriteNextID(WritableFileWriter* file) const {
|
|
uint32_t next_id = next_id_.fetch_add(1);
|
|
char buf[4];
|
|
EncodeFixed32(buf, next_id);
|
|
file->Append(Slice(buf, 4));
|
|
return next_id;
|
|
}
|
|
|
|
uint32_t MockTableFactory::GetIDFromFile(RandomAccessFileReader* file) const {
|
|
char buf[4];
|
|
Slice result;
|
|
file->Read(0, 4, &result, buf);
|
|
assert(result.size() == 4);
|
|
return DecodeFixed32(buf);
|
|
}
|
|
|
|
void MockTableFactory::AssertSingleFile(
|
|
const stl_wrappers::KVMap& file_contents) {
|
|
ASSERT_EQ(file_system_.files.size(), 1U);
|
|
ASSERT_EQ(file_contents, file_system_.files.begin()->second);
|
|
}
|
|
|
|
void MockTableFactory::AssertLatestFile(
|
|
const stl_wrappers::KVMap& file_contents) {
|
|
ASSERT_GE(file_system_.files.size(), 1U);
|
|
auto latest = file_system_.files.end();
|
|
--latest;
|
|
|
|
if (file_contents != latest->second) {
|
|
std::cout << "Wrong content! Content of latest file:" << std::endl;
|
|
for (const auto& kv : latest->second) {
|
|
ParsedInternalKey ikey;
|
|
std::string key, value;
|
|
std::tie(key, value) = kv;
|
|
ParseInternalKey(Slice(key), &ikey);
|
|
std::cout << ikey.DebugString(false) << " -> " << value << std::endl;
|
|
}
|
|
FAIL();
|
|
}
|
|
}
|
|
|
|
} // namespace mock
|
|
} // namespace rocksdb
|