fcb206b667
Summary: Allow users to give a callback function with parameter using sync point, so more complicated verification can be done in tests. Use it in DBTest.DynamicLevelCompressionPerLevel2 so that failures will be more easy to debug. Test Plan: Run all tests. Run DBTest.DynamicLevelCompressionPerLevel2 with valgrind check. Reviewers: rven, yhchiang, anthony, kradhakrishnan, igor Reviewed By: igor Subscribers: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D36999
115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#include "rocksdb/table_properties.h"
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#include "table/mock_table.h"
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#include "table/get_context.h"
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#include "db/dbformat.h"
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#include "port/port.h"
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#include "util/coding.h"
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namespace rocksdb {
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namespace mock {
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Iterator* MockTableReader::NewIterator(const ReadOptions&, Arena* arena) {
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return new MockTableIterator(table_);
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}
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Status MockTableReader::Get(const ReadOptions&, const Slice& key,
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GetContext* get_context) {
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std::unique_ptr<MockTableIterator> iter(new MockTableIterator(table_));
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for (iter->Seek(key); iter->Valid(); iter->Next()) {
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ParsedInternalKey parsed_key;
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if (!ParseInternalKey(iter->key(), &parsed_key)) {
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return Status::Corruption(Slice());
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}
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if (!get_context->SaveValue(parsed_key, iter->value())) {
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break;
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}
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}
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return Status::OK();
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}
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std::shared_ptr<const TableProperties> MockTableReader::GetTableProperties()
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const {
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return std::shared_ptr<const TableProperties>(new TableProperties());
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}
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MockTableFactory::MockTableFactory() : next_id_(1) {}
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Status MockTableFactory::NewTableReader(
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const ImmutableCFOptions& ioptions, const EnvOptions& env_options,
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const InternalKeyComparator& internal_key,
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unique_ptr<RandomAccessFile>&& file, uint64_t file_size,
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unique_ptr<TableReader>* table_reader) const {
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uint32_t id = GetIDFromFile(file.get());
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MutexLock lock_guard(&file_system_.mutex);
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auto it = file_system_.files.find(id);
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if (it == file_system_.files.end()) {
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return Status::IOError("Mock file not found");
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}
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table_reader->reset(new MockTableReader(it->second));
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return Status::OK();
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}
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TableBuilder* MockTableFactory::NewTableBuilder(
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const TableBuilderOptions& table_builder_options,
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WritableFile* file) const {
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uint32_t id = GetAndWriteNextID(file);
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return new MockTableBuilder(id, &file_system_);
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}
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Status MockTableFactory::CreateMockTable(Env* env, const std::string& fname,
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MockFileContents file_contents) {
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std::unique_ptr<WritableFile> file;
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auto s = env->NewWritableFile(fname, &file, EnvOptions());
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if (!s.ok()) {
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return s;
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}
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uint32_t id = GetAndWriteNextID(file.get());
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file_system_.files.insert({id, std::move(file_contents)});
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return Status::OK();
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}
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uint32_t MockTableFactory::GetAndWriteNextID(WritableFile* file) const {
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uint32_t next_id = next_id_.fetch_add(1);
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char buf[4];
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EncodeFixed32(buf, next_id);
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file->Append(Slice(buf, 4));
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return next_id;
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}
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uint32_t MockTableFactory::GetIDFromFile(RandomAccessFile* file) const {
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char buf[4];
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Slice result;
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file->Read(0, 4, &result, buf);
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assert(result.size() == 4);
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return DecodeFixed32(buf);
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}
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void MockTableFactory::AssertSingleFile(const MockFileContents& file_contents) {
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ASSERT_EQ(file_system_.files.size(), 1U);
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ASSERT_TRUE(file_contents == file_system_.files.begin()->second);
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}
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void MockTableFactory::AssertLatestFile(const MockFileContents& file_contents) {
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ASSERT_GE(file_system_.files.size(), 1U);
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auto latest = file_system_.files.end();
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--latest;
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ASSERT_TRUE(file_contents == latest->second);
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}
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} // namespace mock
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} // namespace rocksdb
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