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Make SystemClock into a Customizable Class (#8636) 

Summary:
Made SystemClock into a Customizable class, complete with CreateFromString.

Cleaned up some of the existing SystemClock implementations that were redundant (NoSleep was the same as the internal one for MockEnv).

Changed MockEnv construction to allow Clock to be passed to the Memory/MockFileSystem.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8636

Reviewed By: zhichao-cao

Differential Revision: D30483360

Pulled By: mrambacher

fbshipit-source-id: cd0e3a876c39f8c98fe13374c06e8edbd5b9f2a1
This commit is contained in:
mrambacher 2021-09-21 08:53:03 -07:00 committed by Facebook GitHub Bot
parent d497cdfbb2
commit 6924869867
31 changed files with 560 additions and 236 deletions
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1
HISTORY.md
View File

@ -3,6 +3,7 @@
### Bug Fixes
### New Features
### Public API change
* Made SystemClock extend the Customizable class and added a CreateFromString method. Implementations need to be registered with the ObjectRegistry and to implement a Name() method in order to be created via this method.
## 6.25.0 (2021-09-20)
### Bug Fixes

52
db/blob/blob_file_builder_test.cc
View File

@ -39,9 +39,10 @@ class TestFileNumberGenerator {
class BlobFileBuilderTest : public testing::Test {
protected:
BlobFileBuilderTest() : mock_env_(Env::Default()) {
fs_ = mock_env_.GetFileSystem().get();
clock_ = mock_env_.GetSystemClock().get();
BlobFileBuilderTest() {
mock_env_.reset(MockEnv::Create(Env::Default()));
fs_ = mock_env_->GetFileSystem().get();
clock_ = mock_env_->GetSystemClock().get();
}
void VerifyBlobFile(uint64_t blob_file_number,
@ -108,7 +109,7 @@ class BlobFileBuilderTest : public testing::Test {
ASSERT_EQ(footer.expiration_range, ExpirationRange());
}
MockEnv mock_env_;
std::unique_ptr<Env> mock_env_;
FileSystem* fs_;
SystemClock* clock_;
FileOptions file_options_;
@ -123,11 +124,11 @@ TEST_F(BlobFileBuilderTest, BuildAndCheckOneFile) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileBuilderTest_BuildAndCheckOneFile"),
0);
options.enable_blob_files = true;
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);
@ -206,12 +207,12 @@ TEST_F(BlobFileBuilderTest, BuildAndCheckMultipleFiles) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileBuilderTest_BuildAndCheckMultipleFiles"),
0);
options.enable_blob_files = true;
options.blob_file_size = value_size;
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);
@ -293,11 +294,12 @@ TEST_F(BlobFileBuilderTest, InlinedValues) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_InlinedValues"),
test::PerThreadDBPath(mock_env_.get(),
"BlobFileBuilderTest_InlinedValues"),
0);
options.enable_blob_files = true;
options.min_blob_size = 1024;
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);
@ -347,10 +349,11 @@ TEST_F(BlobFileBuilderTest, Compression) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_Compression"), 0);
test::PerThreadDBPath(mock_env_.get(), "BlobFileBuilderTest_Compression"),
0);
options.enable_blob_files = true;
options.blob_compression_type = kSnappyCompression;
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);
@ -429,11 +432,12 @@ TEST_F(BlobFileBuilderTest, CompressionError) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_CompressionError"),
test::PerThreadDBPath(mock_env_.get(),
"BlobFileBuilderTest_CompressionError"),
0);
options.enable_blob_files = true;
options.blob_compression_type = kSnappyCompression;
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);
@ -506,11 +510,12 @@ TEST_F(BlobFileBuilderTest, Checksum) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_Checksum"), 0);
test::PerThreadDBPath(mock_env_.get(), "BlobFileBuilderTest_Checksum"),
0);
options.enable_blob_files = true;
options.file_checksum_gen_factory =
std::make_shared<DummyFileChecksumGenFactory>();
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);
@ -575,12 +580,12 @@ class BlobFileBuilderIOErrorTest
: public testing::Test,
public testing::WithParamInterface<std::string> {
protected:
BlobFileBuilderIOErrorTest()
: mock_env_(Env::Default()),
fs_(mock_env_.GetFileSystem().get()),
sync_point_(GetParam()) {}
BlobFileBuilderIOErrorTest() : sync_point_(GetParam()) {
mock_env_.reset(MockEnv::Create(Env::Default()));
fs_ = mock_env_->GetFileSystem().get();
}
MockEnv mock_env_;
std::unique_ptr<Env> mock_env_;
FileSystem* fs_;
FileOptions file_options_;
std::string sync_point_;
@ -602,11 +607,12 @@ TEST_P(BlobFileBuilderIOErrorTest, IOError) {
Options options;
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileBuilderIOErrorTest_IOError"),
test::PerThreadDBPath(mock_env_.get(),
"BlobFileBuilderIOErrorTest_IOError"),
0);
options.enable_blob_files = true;
options.blob_file_size = value_size;
options.env = &mock_env_;
options.env = mock_env_.get();
ImmutableOptions immutable_options(options);
MutableCFOptions mutable_cf_options(options);

21
db/blob/blob_file_cache_test.cc
View File

@ -84,17 +84,18 @@ void WriteBlobFile(uint32_t column_family_id,
class BlobFileCacheTest : public testing::Test {
protected:
BlobFileCacheTest() : mock_env_(Env::Default()) {}
BlobFileCacheTest() { mock_env_.reset(MockEnv::Create(Env::Default())); }
MockEnv mock_env_;
std::unique_ptr<Env> mock_env_;
};
TEST_F(BlobFileCacheTest, GetBlobFileReader) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.statistics = CreateDBStatistics();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileCacheTest_GetBlobFileReader"),
test::PerThreadDBPath(mock_env_.get(),
"BlobFileCacheTest_GetBlobFileReader"),
0);
options.enable_blob_files = true;
@ -135,10 +136,10 @@ TEST_F(BlobFileCacheTest, GetBlobFileReader) {
TEST_F(BlobFileCacheTest, GetBlobFileReader_Race) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.statistics = CreateDBStatistics();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileCacheTest_GetBlobFileReader_Race"),
0);
options.enable_blob_files = true;
@ -187,10 +188,10 @@ TEST_F(BlobFileCacheTest, GetBlobFileReader_Race) {
TEST_F(BlobFileCacheTest, GetBlobFileReader_IOError) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.statistics = CreateDBStatistics();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileCacheTest_GetBlobFileReader_IOError"),
0);
options.enable_blob_files = true;
@ -221,10 +222,10 @@ TEST_F(BlobFileCacheTest, GetBlobFileReader_IOError) {
TEST_F(BlobFileCacheTest, GetBlobFileReader_CacheFull) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.statistics = CreateDBStatistics();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileCacheTest_GetBlobFileReader_CacheFull"),
0);
options.enable_blob_files = true;

75
db/blob/blob_file_reader_test.cc
View File

@ -134,16 +134,15 @@ void WriteBlobFile(const ImmutableOptions& immutable_options,
class BlobFileReaderTest : public testing::Test {
protected:
BlobFileReaderTest() : mock_env_(Env::Default()) {}
MockEnv mock_env_;
BlobFileReaderTest() { mock_env_.reset(MockEnv::Create(Env::Default())); }
std::unique_ptr<Env> mock_env_;
};
TEST_F(BlobFileReaderTest, CreateReaderAndGetBlob) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileReaderTest_CreateReaderAndGetBlob"),
0);
options.enable_blob_files = true;
@ -400,9 +399,10 @@ TEST_F(BlobFileReaderTest, Malformed) {
// detect the error when we open it for reading
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_Malformed"), 0);
test::PerThreadDBPath(mock_env_.get(), "BlobFileReaderTest_Malformed"),
0);
options.enable_blob_files = true;
ImmutableOptions immutable_options(options);
@ -452,9 +452,9 @@ TEST_F(BlobFileReaderTest, Malformed) {
TEST_F(BlobFileReaderTest, TTL) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_TTL"), 0);
test::PerThreadDBPath(mock_env_.get(), "BlobFileReaderTest_TTL"), 0);
options.enable_blob_files = true;
ImmutableOptions immutable_options(options);
@ -486,9 +486,9 @@ TEST_F(BlobFileReaderTest, TTL) {
TEST_F(BlobFileReaderTest, ExpirationRangeInHeader) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileReaderTest_ExpirationRangeInHeader"),
0);
options.enable_blob_files = true;
@ -525,9 +525,9 @@ TEST_F(BlobFileReaderTest, ExpirationRangeInHeader) {
TEST_F(BlobFileReaderTest, ExpirationRangeInFooter) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileReaderTest_ExpirationRangeInFooter"),
0);
options.enable_blob_files = true;
@ -564,9 +564,9 @@ TEST_F(BlobFileReaderTest, ExpirationRangeInFooter) {
TEST_F(BlobFileReaderTest, IncorrectColumnFamily) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileReaderTest_IncorrectColumnFamily"),
0);
options.enable_blob_files = true;
@ -602,9 +602,10 @@ TEST_F(BlobFileReaderTest, IncorrectColumnFamily) {
TEST_F(BlobFileReaderTest, BlobCRCError) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_BlobCRCError"), 0);
test::PerThreadDBPath(mock_env_.get(), "BlobFileReaderTest_BlobCRCError"),
0);
options.enable_blob_files = true;
ImmutableOptions immutable_options(options);
@ -660,9 +661,10 @@ TEST_F(BlobFileReaderTest, Compression) {
}
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_Compression"), 0);
test::PerThreadDBPath(mock_env_.get(), "BlobFileReaderTest_Compression"),
0);
options.enable_blob_files = true;
ImmutableOptions immutable_options(options);
@ -726,9 +728,9 @@ TEST_F(BlobFileReaderTest, UncompressionError) {
}
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileReaderTest_UncompressionError"),
0);
options.enable_blob_files = true;
@ -785,13 +787,13 @@ class BlobFileReaderIOErrorTest
: public testing::Test,
public testing::WithParamInterface<std::string> {
protected:
BlobFileReaderIOErrorTest()
: mock_env_(Env::Default()),
fault_injection_env_(&mock_env_),
sync_point_(GetParam()) {}
BlobFileReaderIOErrorTest() : sync_point_(GetParam()) {
mock_env_.reset(MockEnv::Create(Env::Default()));
fault_injection_env_.reset(new FaultInjectionTestEnv(mock_env_.get()));
}
MockEnv mock_env_;
FaultInjectionTestEnv fault_injection_env_;
std::unique_ptr<Env> mock_env_;
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env_;
std::string sync_point_;
};
@ -807,9 +809,9 @@ TEST_P(BlobFileReaderIOErrorTest, IOError) {
// Simulates an I/O error during the specified step
Options options;
options.env = &fault_injection_env_;
options.env = fault_injection_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&fault_injection_env_,
test::PerThreadDBPath(fault_injection_env_.get(),
"BlobFileReaderIOErrorTest_IOError"),
0);
options.enable_blob_files = true;
@ -831,8 +833,8 @@ TEST_P(BlobFileReaderIOErrorTest, IOError) {
&blob_offset, &blob_size);
SyncPoint::GetInstance()->SetCallBack(sync_point_, [this](void* /* arg */) {
fault_injection_env_.SetFilesystemActive(false,
Status::IOError(sync_point_));
fault_injection_env_->SetFilesystemActive(false,
Status::IOError(sync_point_));
});
SyncPoint::GetInstance()->EnableProcessing();
@ -870,10 +872,11 @@ class BlobFileReaderDecodingErrorTest
: public testing::Test,
public testing::WithParamInterface<std::string> {
protected:
BlobFileReaderDecodingErrorTest()
: mock_env_(Env::Default()), sync_point_(GetParam()) {}
BlobFileReaderDecodingErrorTest() : sync_point_(GetParam()) {
mock_env_.reset(MockEnv::Create(Env::Default()));
}
MockEnv mock_env_;
std::unique_ptr<Env> mock_env_;
std::string sync_point_;
};
@ -885,9 +888,9 @@ INSTANTIATE_TEST_CASE_P(BlobFileReaderTest, BlobFileReaderDecodingErrorTest,
TEST_P(BlobFileReaderDecodingErrorTest, DecodingError) {
Options options;
options.env = &mock_env_;
options.env = mock_env_.get();
options.cf_paths.emplace_back(
test::PerThreadDBPath(&mock_env_,
test::PerThreadDBPath(mock_env_.get(),
"BlobFileReaderDecodingErrorTest_DecodingError"),
0);
options.enable_blob_files = true;

2
db/db_compaction_test.cc
View File

@ -4979,7 +4979,7 @@ TEST_P(DBCompactionDirectIOTest, DirectIO) {
options.create_if_missing = true;
options.disable_auto_compactions = true;
options.use_direct_io_for_flush_and_compaction = GetParam();
options.env = new MockEnv(Env::Default());
options.env = MockEnv::Create(Env::Default());
Reopen(options);
bool readahead = false;
SyncPoint::GetInstance()->SetCallBack(

4
db/db_dynamic_level_test.cc
View File

@ -13,9 +13,9 @@
#if !defined(ROCKSDB_LITE)
#include "db/db_test_util.h"
#include "env/mock_env.h"
#include "port/port.h"
#include "port/stack_trace.h"
#include "rocksdb/env.h"
#include "util/random.h"
namespace ROCKSDB_NAMESPACE {
@ -30,7 +30,7 @@ TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase) {
return;
}
// Use InMemoryEnv, or it would be too slow.
std::unique_ptr<Env> env(new MockEnv(env_));
std::unique_ptr<Env> env(NewMemEnv(env_));
const int kNKeys = 1000;
int keys[kNKeys];

2
db/db_flush_test.cc
View File

@ -1381,7 +1381,7 @@ TEST_P(DBFlushDirectIOTest, DirectIO) {
options.disable_auto_compactions = true;
options.max_background_flushes = 2;
options.use_direct_io_for_flush_and_compaction = GetParam();
options.env = new MockEnv(Env::Default());
options.env = MockEnv::Create(Env::Default());
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:create_file", [&](void* arg) {
bool* use_direct_writes = static_cast<bool*>(arg);

4
db/db_test.cc
View File

@ -95,7 +95,7 @@ class DBTestWithParam
};
TEST_F(DBTest, MockEnvTest) {
std::unique_ptr<MockEnv> env{new MockEnv(Env::Default())};
std::unique_ptr<MockEnv> env{MockEnv::Create(Env::Default())};
Options options;
options.create_if_missing = true;
options.env = env.get();
@ -4845,7 +4845,7 @@ TEST_F(DBTest, DynamicLevelCompressionPerLevel2) {
options.level0_stop_writes_trigger = 2;
options.soft_pending_compaction_bytes_limit = 1024 * 1024;
options.target_file_size_base = 20;
options.env = env_;
options.level_compaction_dynamic_level_bytes = true;
options.max_bytes_for_level_base = 200;
options.max_bytes_for_level_multiplier = 8;

2
db/db_test_util.cc
View File

@ -63,7 +63,7 @@ DBTestBase::DBTestBase(const std::string path, bool env_do_fsync)
EXPECT_OK(test::CreateEnvFromSystem(config_options, &base_env, &env_guard_));
EXPECT_NE(nullptr, base_env);
if (getenv("MEM_ENV")) {
mem_env_ = new MockEnv(base_env);
mem_env_ = MockEnv::Create(base_env, base_env->GetSystemClock());
}
#ifndef ROCKSDB_LITE
if (getenv("ENCRYPTED_ENV")) {

1
db/db_universal_compaction_test.cc
View File

@ -737,6 +737,7 @@ TEST_P(DBTestUniversalCompactionParallel, UniversalCompactionParallel) {
Options options = CurrentOptions();
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = num_levels_;
options.env = env_;
options.write_buffer_size = 1 << 10; // 1KB
options.level0_file_num_compaction_trigger = 3;
options.max_background_compactions = 3;

3
db/external_sst_file_test.cc
View File

@ -1991,7 +1991,8 @@ TEST_F(ExternalSSTFileTest, CompactionDeadlock) {
if (running_threads.load() == 0) {
break;
}
env_->SleepForMicroseconds(500000);
// Make sure we do a "real sleep", not a mock one.
SystemClock::Default()->SleepForMicroseconds(500000);
}
ASSERT_EQ(running_threads.load(), 0);

2
db/fault_injection_test.cc
View File

@ -94,7 +94,7 @@ class FaultInjectionTest
return false;
} else {
if (option_config_ == kMultiLevels) {
base_env_.reset(new MockEnv(Env::Default()));
base_env_.reset(MockEnv::Create(Env::Default()));
}
return true;
}

9
db/wal_manager_test.cc
View File

@ -32,13 +32,12 @@ namespace ROCKSDB_NAMESPACE {
class WalManagerTest : public testing::Test {
public:
WalManagerTest()
: env_(new MockEnv(Env::Default())),
dbname_(test::PerThreadDBPath("wal_manager_test")),
: dbname_(test::PerThreadDBPath("wal_manager_test")),
db_options_(),
table_cache_(NewLRUCache(50000, 16)),
write_buffer_manager_(db_options_.db_write_buffer_size),
current_log_number_(0) {
DestroyDB(dbname_, Options());
env_.reset(MockEnv::Create(Env::Default())), DestroyDB(dbname_, Options());
}
void Init() {
@ -247,7 +246,7 @@ TEST_F(WalManagerTest, WALArchivalSizeLimit) {
ASSERT_TRUE(archive_size <= db_options_.WAL_size_limit_MB * 1024 * 1024);
db_options_.WAL_ttl_seconds = 1;
env_->FakeSleepForMicroseconds(2 * 1000 * 1000);
env_->SleepForMicroseconds(2 * 1000 * 1000);
Reopen();
wal_manager_->PurgeObsoleteWALFiles();
@ -273,7 +272,7 @@ TEST_F(WalManagerTest, WALArchivalTtl) {
ASSERT_GT(log_files.size(), 0U);
db_options_.WAL_ttl_seconds = 1;
env_->FakeSleepForMicroseconds(3 * 1000 * 1000);
env_->SleepForMicroseconds(3 * 1000 * 1000);
Reopen();
wal_manager_->PurgeObsoleteWALFiles();

114
env/emulated_clock.h vendored Normal file
View File

@ -0,0 +1,114 @@
// 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).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#pragma once
#include <atomic>
#include <string>
#include "rocksdb/status.h"
#include "rocksdb/system_clock.h"
namespace ROCKSDB_NAMESPACE {
// A SystemClock that can "mock" sleep and counts its operations.
class EmulatedSystemClock : public SystemClockWrapper {
private:
// Something to return when mocking current time
const int64_t maybe_starting_time_;
std::atomic<int> sleep_counter_{0};
std::atomic<int> cpu_counter_{0};
std::atomic<int64_t> addon_microseconds_{0};
// Do not modify in the env of a running DB (could cause deadlock)
std::atomic<bool> time_elapse_only_sleep_;
bool no_slowdown_;
public:
explicit EmulatedSystemClock(const std::shared_ptr<SystemClock>& base,
bool time_elapse_only_sleep = false);
static const char* kClassName() { return "TimeEmulatedSystemClock"; }
const char* Name() const override { return kClassName(); }
virtual void SleepForMicroseconds(int micros) override {
sleep_counter_++;
if (no_slowdown_ || time_elapse_only_sleep_) {
addon_microseconds_.fetch_add(micros);
}
if (!no_slowdown_) {
SystemClockWrapper::SleepForMicroseconds(micros);
}
}
void MockSleepForMicroseconds(int64_t micros) {
sleep_counter_++;
assert(no_slowdown_);
addon_microseconds_.fetch_add(micros);
}
void MockSleepForSeconds(int64_t seconds) {
sleep_counter_++;
assert(no_slowdown_);
addon_microseconds_.fetch_add(seconds * 1000000);
}
void SetTimeElapseOnlySleep(bool enabled) {
// We cannot set these before destroying the last DB because they might
// cause a deadlock or similar without the appropriate options set in
// the DB.
time_elapse_only_sleep_ = enabled;
no_slowdown_ = enabled;
}
bool IsTimeElapseOnlySleep() const { return time_elapse_only_sleep_.load(); }
void SetMockSleep(bool enabled = true) { no_slowdown_ = enabled; }
bool IsMockSleepEnabled() const { return no_slowdown_; }
int GetSleepCounter() const { return sleep_counter_.load(); }
virtual Status GetCurrentTime(int64_t* unix_time) override {
Status s;
if (time_elapse_only_sleep_) {
*unix_time = maybe_starting_time_;
} else {
s = SystemClockWrapper::GetCurrentTime(unix_time);
}
if (s.ok()) {
// mock microseconds elapsed to seconds of time
*unix_time += addon_microseconds_.load() / 1000000;
}
return s;
}
virtual uint64_t CPUNanos() override {
cpu_counter_++;
return SystemClockWrapper::CPUNanos();
}
virtual uint64_t CPUMicros() override {
cpu_counter_++;
return SystemClockWrapper::CPUMicros();
}
virtual uint64_t NowNanos() override {
return (time_elapse_only_sleep_ ? 0 : SystemClockWrapper::NowNanos()) +
addon_microseconds_.load() * 1000;
}
virtual uint64_t NowMicros() override {
return (time_elapse_only_sleep_ ? 0 : SystemClockWrapper::NowMicros()) +
addon_microseconds_.load();
}
int GetCpuCounter() const { return cpu_counter_.load(); }
void ResetCounters() {
cpu_counter_.store(0);
sleep_counter_.store(0);
}
};
} // namespace ROCKSDB_NAMESPACE

80
env/env.cc vendored
View File

@ -12,6 +12,7 @@
#include <thread>
#include "env/composite_env_wrapper.h"
#include "env/emulated_clock.h"
#include "env/unique_id.h"
#include "logging/env_logger.h"
#include "memory/arena.h"
@ -20,7 +21,9 @@
#include "rocksdb/convenience.h"
#include "rocksdb/options.h"
#include "rocksdb/system_clock.h"
#include "rocksdb/utilities/customizable_util.h"
#include "rocksdb/utilities/object_registry.h"
#include "rocksdb/utilities/options_type.h"
#include "util/autovector.h"
#include "util/string_util.h"
@ -1128,4 +1131,81 @@ const std::shared_ptr<FileSystem>& Env::GetFileSystem() const {
const std::shared_ptr<SystemClock>& Env::GetSystemClock() const {
return system_clock_;
}
namespace {
static std::unordered_map<std::string, OptionTypeInfo> sc_wrapper_type_info = {
#ifndef ROCKSDB_LITE
{"target",
OptionTypeInfo::AsCustomSharedPtr<SystemClock>(
0, OptionVerificationType::kByName, OptionTypeFlags::kDontSerialize)},
#endif // ROCKSDB_LITE
};
} // namespace
SystemClockWrapper::SystemClockWrapper(const std::shared_ptr<SystemClock>& t)
: target_(t) {
RegisterOptions("", &target_, &sc_wrapper_type_info);
}
Status SystemClockWrapper::PrepareOptions(const ConfigOptions& options) {
if (target_ == nullptr) {
target_ = SystemClock::Default();
}
return SystemClock::PrepareOptions(options);
}
#ifndef ROCKSDB_LITE
std::string SystemClockWrapper::SerializeOptions(
const ConfigOptions& config_options, const std::string& header) const {
auto parent = SystemClock::SerializeOptions(config_options, "");
if (config_options.IsShallow() || target_ == nullptr ||
target_->IsInstanceOf(SystemClock::kDefaultName())) {
return parent;
} else {
std::string result = header;
if (!StartsWith(parent, OptionTypeInfo::kIdPropName())) {
result.append(OptionTypeInfo::kIdPropName()).append("=");
}
result.append(parent);
if (!EndsWith(result, config_options.delimiter)) {
result.append(config_options.delimiter);
}
result.append("target=").append(target_->ToString(config_options));
return result;
}
}
#endif // ROCKSDB_LITE
#ifndef ROCKSDB_LITE
static int RegisterBuiltinSystemClocks(ObjectLibrary& library,
const std::string& /*arg*/) {
library.Register<SystemClock>(
EmulatedSystemClock::kClassName(),
[](const std::string& /*uri*/, std::unique_ptr<SystemClock>* guard,
std::string* /* errmsg */) {
guard->reset(new EmulatedSystemClock(SystemClock::Default()));
return guard->get();
});
size_t num_types;
return static_cast<int>(library.GetFactoryCount(&num_types));
}
#endif // ROCKSDB_LITE
Status SystemClock::CreateFromString(const ConfigOptions& config_options,
const std::string& value,
std::shared_ptr<SystemClock>* result) {
auto clock = SystemClock::Default();
if (clock->IsInstanceOf(value)) {
*result = clock;
return Status::OK();
} else {
#ifndef ROCKSDB_LITE
static std::once_flag once;
std::call_once(once, [&]() {
RegisterBuiltinSystemClocks(*(ObjectLibrary::Default().get()), "");
});
#endif // ROCKSDB_LITE
return LoadSharedObject<SystemClock>(config_options, value, nullptr,
result);
}
}
} // namespace ROCKSDB_NAMESPACE

2
env/env_basic_test.cc vendored
View File

@ -29,7 +29,7 @@ using CreateEnvFunc = Env*();
static Env* GetDefaultEnv() { return Env::Default(); }
static Env* GetMockEnv() {
static std::unique_ptr<Env> mock_env(new MockEnv(Env::Default()));
static std::unique_ptr<Env> mock_env(MockEnv::Create(Env::Default()));
return mock_env.get();
}
#ifndef ROCKSDB_LITE

5
env/env_posix.cc vendored
View File

@ -127,7 +127,10 @@ class PosixDynamicLibrary : public DynamicLibrary {
class PosixClock : public SystemClock {
public:
const char* Name() const override { return "PosixClock"; }
static const char* kClassName() { return "PosixClock"; }
const char* Name() const override { return kClassName(); }
const char* NickName() const override { return kDefaultName(); }
uint64_t NowMicros() override {
struct timeval tv;
gettimeofday(&tv, nullptr);

88
env/env_test.cc vendored
View File

@ -36,6 +36,7 @@
#endif
#include "db/db_impl/db_impl.h"
#include "env/emulated_clock.h"
#include "env/env_chroot.h"
#include "env/env_encryption_ctr.h"
#include "env/unique_id.h"
@ -47,6 +48,8 @@
#include "rocksdb/env_encryption.h"
#include "rocksdb/file_system.h"
#include "rocksdb/system_clock.h"
#include "rocksdb/utilities/object_registry.h"
#include "test_util/mock_time_env.h"
#include "test_util/sync_point.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
@ -2393,33 +2396,37 @@ TEST_F(EnvTest, EnvWriteVerificationTest) {
ASSERT_OK(s);
}
#ifndef ROCKSDB_LITE
class EncryptionProviderTest : public testing::Test {
class CreateEnvTest : public testing::Test {
public:
CreateEnvTest() {
config_options_.ignore_unknown_options = false;
config_options_.ignore_unsupported_options = false;
}
ConfigOptions config_options_;
};
TEST_F(EncryptionProviderTest, LoadCTRProvider) {
ConfigOptions config_options;
config_options.invoke_prepare_options = false;
#ifndef ROCKSDB_LITE
TEST_F(CreateEnvTest, LoadCTRProvider) {
config_options_.invoke_prepare_options = false;
std::string CTR = CTREncryptionProvider::kClassName();
std::shared_ptr<EncryptionProvider> provider;
// Test a provider with no cipher
ASSERT_OK(
EncryptionProvider::CreateFromString(config_options, CTR, &provider));
EncryptionProvider::CreateFromString(config_options_, CTR, &provider));
ASSERT_NE(provider, nullptr);
ASSERT_EQ(provider->Name(), CTR);
ASSERT_NOK(provider->PrepareOptions(config_options));
ASSERT_NOK(provider->PrepareOptions(config_options_));
ASSERT_NOK(provider->ValidateOptions(DBOptions(), ColumnFamilyOptions()));
auto cipher = provider->GetOptions<std::shared_ptr<BlockCipher>>("Cipher");
ASSERT_NE(cipher, nullptr);
ASSERT_EQ(cipher->get(), nullptr);
provider.reset();
ASSERT_OK(EncryptionProvider::CreateFromString(config_options,
ASSERT_OK(EncryptionProvider::CreateFromString(config_options_,
CTR + "://test", &provider));
ASSERT_NE(provider, nullptr);
ASSERT_EQ(provider->Name(), CTR);
ASSERT_OK(provider->PrepareOptions(config_options));
ASSERT_OK(provider->PrepareOptions(config_options_));
ASSERT_OK(provider->ValidateOptions(DBOptions(), ColumnFamilyOptions()));
cipher = provider->GetOptions<std::shared_ptr<BlockCipher>>("Cipher");
ASSERT_NE(cipher, nullptr);
@ -2427,11 +2434,11 @@ TEST_F(EncryptionProviderTest, LoadCTRProvider) {
ASSERT_STREQ(cipher->get()->Name(), "ROT13");
provider.reset();
ASSERT_OK(EncryptionProvider::CreateFromString(config_options, "1://test",
ASSERT_OK(EncryptionProvider::CreateFromString(config_options_, "1://test",
&provider));
ASSERT_NE(provider, nullptr);
ASSERT_EQ(provider->Name(), CTR);
ASSERT_OK(provider->PrepareOptions(config_options));
ASSERT_OK(provider->PrepareOptions(config_options_));
ASSERT_OK(provider->ValidateOptions(DBOptions(), ColumnFamilyOptions()));
cipher = provider->GetOptions<std::shared_ptr<BlockCipher>>("Cipher");
ASSERT_NE(cipher, nullptr);
@ -2440,7 +2447,7 @@ TEST_F(EncryptionProviderTest, LoadCTRProvider) {
provider.reset();
ASSERT_OK(EncryptionProvider::CreateFromString(
config_options, "id=" + CTR + "; cipher=ROT13", &provider));
config_options_, "id=" + CTR + "; cipher=ROT13", &provider));
ASSERT_NE(provider, nullptr);
ASSERT_EQ(provider->Name(), CTR);
cipher = provider->GetOptions<std::shared_ptr<BlockCipher>>("Cipher");
@ -2450,15 +2457,66 @@ TEST_F(EncryptionProviderTest, LoadCTRProvider) {
provider.reset();
}
TEST_F(EncryptionProviderTest, LoadROT13Cipher) {
ConfigOptions config_options;
TEST_F(CreateEnvTest, LoadROT13Cipher) {
std::shared_ptr<BlockCipher> cipher;
// Test a provider with no cipher
ASSERT_OK(BlockCipher::CreateFromString(config_options, "ROT13", &cipher));
ASSERT_OK(BlockCipher::CreateFromString(config_options_, "ROT13", &cipher));
ASSERT_NE(cipher, nullptr);
ASSERT_STREQ(cipher->Name(), "ROT13");
}
#endif // ROCKSDB_LITE
TEST_F(CreateEnvTest, CreateDefaultSystemClock) {
std::shared_ptr<SystemClock> clock, copy;
ASSERT_OK(SystemClock::CreateFromString(config_options_,
SystemClock::kDefaultName(), &clock));
ASSERT_NE(clock, nullptr);
ASSERT_EQ(clock, SystemClock::Default());
#ifndef ROCKSDB_LITE
std::string opts_str = clock->ToString(config_options_);
std::string mismatch;
ASSERT_OK(SystemClock::CreateFromString(config_options_, opts_str, &copy));
ASSERT_TRUE(clock->AreEquivalent(config_options_, copy.get(), &mismatch));
#endif // ROCKSDB_LITE
}
#ifndef ROCKSDB_LITE
TEST_F(CreateEnvTest, CreateMockSystemClock) {
std::shared_ptr<SystemClock> mock, copy;
config_options_.registry->AddLibrary("test")->Register<SystemClock>(
MockSystemClock::kClassName(),
[](const std::string& /*uri*/, std::unique_ptr<SystemClock>* guard,
std::string* /* errmsg */) {
guard->reset(new MockSystemClock(nullptr));
return guard->get();
});
ASSERT_OK(SystemClock::CreateFromString(
config_options_, EmulatedSystemClock::kClassName(), &mock));
ASSERT_NE(mock, nullptr);
ASSERT_STREQ(mock->Name(), EmulatedSystemClock::kClassName());
ASSERT_EQ(mock->Inner(), SystemClock::Default().get());
std::string opts_str = mock->ToString(config_options_);
std::string mismatch;
ASSERT_OK(SystemClock::CreateFromString(config_options_, opts_str, &copy));
ASSERT_TRUE(mock->AreEquivalent(config_options_, copy.get(), &mismatch));
std::string id = std::string("id=") + EmulatedSystemClock::kClassName() +
";target=" + MockSystemClock::kClassName();
ASSERT_OK(SystemClock::CreateFromString(config_options_, id, &mock));
ASSERT_NE(mock, nullptr);
ASSERT_STREQ(mock->Name(), EmulatedSystemClock::kClassName());
ASSERT_NE(mock->Inner(), nullptr);
ASSERT_STREQ(mock->Inner()->Name(), MockSystemClock::kClassName());
ASSERT_EQ(mock->Inner()->Inner(), SystemClock::Default().get());
opts_str = mock->ToString(config_options_);
ASSERT_OK(SystemClock::CreateFromString(config_options_, opts_str, &copy));
ASSERT_TRUE(mock->AreEquivalent(config_options_, copy.get(), &mismatch));
ASSERT_OK(SystemClock::CreateFromString(
config_options_, EmulatedSystemClock::kClassName(), &mock));
}
#endif // ROCKSDB_LITE
namespace {

155
env/mock_env.cc vendored
View File

@ -12,21 +12,83 @@
#include <algorithm>
#include <chrono>
#include "env/emulated_clock.h"
#include "file/filename.h"
#include "port/sys_time.h"
#include "rocksdb/file_system.h"
#include "rocksdb/utilities/options_type.h"
#include "test_util/sync_point.h"
#include "util/cast_util.h"
#include "util/hash.h"
#include "util/random.h"
#include "util/rate_limiter.h"
#include "util/string_util.h"
namespace ROCKSDB_NAMESPACE {
namespace {
int64_t MaybeCurrentTime(const std::shared_ptr<SystemClock>& clock) {
int64_t time = 1337346000; // arbitrary fallback default
clock->GetCurrentTime(&time).PermitUncheckedError();
return time;
}
static std::unordered_map<std::string, OptionTypeInfo> time_elapse_type_info = {
#ifndef ROCKSDB_LITE
{"time_elapse_only_sleep",
{0, OptionType::kBoolean, OptionVerificationType::kNormal,
OptionTypeFlags::kCompareNever,
[](const ConfigOptions& /*opts*/, const std::string& /*name*/,
const std::string& value, void* addr) {
auto clock = static_cast<EmulatedSystemClock*>(addr);
clock->SetTimeElapseOnlySleep(ParseBoolean("", value));
return Status::OK();
},
[](const ConfigOptions& /*opts*/, const std::string& /*name*/,
const void* addr, std::string* value) {
const auto clock = static_cast<const EmulatedSystemClock*>(addr);
*value = clock->IsTimeElapseOnlySleep() ? "true" : "false";
return Status::OK();
},
nullptr}},
#endif // ROCKSDB_LITE
};
static std::unordered_map<std::string, OptionTypeInfo> mock_sleep_type_info = {
#ifndef ROCKSDB_LITE
{"mock_sleep",
{0, OptionType::kBoolean, OptionVerificationType::kNormal,
OptionTypeFlags::kCompareNever,
[](const ConfigOptions& /*opts*/, const std::string& /*name*/,
const std::string& value, void* addr) {
auto clock = static_cast<EmulatedSystemClock*>(addr);
clock->SetMockSleep(ParseBoolean("", value));
return Status::OK();
},
[](const ConfigOptions& /*opts*/, const std::string& /*name*/,
const void* addr, std::string* value) {
const auto clock = static_cast<const EmulatedSystemClock*>(addr);
*value = clock->IsMockSleepEnabled() ? "true" : "false";
return Status::OK();
},
nullptr}},
#endif // ROCKSDB_LITE
};
} // namespace
EmulatedSystemClock::EmulatedSystemClock(
const std::shared_ptr<SystemClock>& base, bool time_elapse_only_sleep)
: SystemClockWrapper(base),
maybe_starting_time_(MaybeCurrentTime(base)),
time_elapse_only_sleep_(time_elapse_only_sleep),
no_slowdown_(time_elapse_only_sleep) {
RegisterOptions("", this, &time_elapse_type_info);
RegisterOptions("", this, &mock_sleep_type_info);
}
class MemFile {
public:
explicit MemFile(Env* env, const std::string& fn, bool _is_lock_file = false)
: env_(env),
explicit MemFile(SystemClock* clock, const std::string& fn,
bool _is_lock_file = false)
: clock_(clock),
fn_(fn),
refs_(0),
is_lock_file_(_is_lock_file),
@ -166,7 +228,7 @@ class MemFile {
private:
uint64_t Now() {
int64_t unix_time = 0;
auto s = env_->GetCurrentTime(&unix_time);
auto s = clock_->GetCurrentTime(&unix_time);
assert(s.ok());
return static_cast<uint64_t>(unix_time);
}
@ -174,7 +236,7 @@ class MemFile {
// Private since only Unref() should be used to delete it.
~MemFile() { assert(refs_ == 0); }
Env* env_;
SystemClock* clock_;
const std::string fn_;
mutable port::Mutex mutex_;
int refs_;
@ -403,20 +465,20 @@ class TestMemLogger : public Logger {
std::atomic_size_t log_size_;
static const uint64_t flush_every_seconds_ = 5;
std::atomic_uint_fast64_t last_flush_micros_;
Env* env_;
SystemClock* clock_;
IOOptions options_;
IODebugContext* dbg_;
std::atomic<bool> flush_pending_;
public:
TestMemLogger(std::unique_ptr<FSWritableFile> f, Env* env,
TestMemLogger(std::unique_ptr<FSWritableFile> f, SystemClock* clock,
const IOOptions& options, IODebugContext* dbg,
const InfoLogLevel log_level = InfoLogLevel::ERROR_LEVEL)
: Logger(log_level),
file_(std::move(f)),
log_size_(0),
last_flush_micros_(0),
env_(env),
clock_(clock),
options_(options),
dbg_(dbg),
flush_pending_(false) {}
@ -426,7 +488,7 @@ class TestMemLogger : public Logger {
if (flush_pending_) {
flush_pending_ = false;
}
last_flush_micros_ = env_->NowMicros();
last_flush_micros_ = clock_->NowMicros();
}
using Logger::Logv;
@ -506,8 +568,11 @@ class TestMemLogger : public Logger {
class MockFileSystem : public FileSystem {
public:
explicit MockFileSystem(Env* env, bool supports_direct_io = true)
: env_(env), supports_direct_io_(supports_direct_io) {}
explicit MockFileSystem(const std::shared_ptr<SystemClock>& clock,
bool supports_direct_io = true)
: system_clock_(clock), supports_direct_io_(supports_direct_io) {
clock_ = system_clock_.get();
}
~MockFileSystem() override {
for (auto i = file_map_.begin(); i != file_map_.end(); ++i) {
@ -620,12 +685,13 @@ class MockFileSystem : public FileSystem {
// Map from filenames to MemFile objects, representing a simple file system.
port::Mutex mutex_;
std::map<std::string, MemFile*> file_map_; // Protected by mutex_.
Env* env_;
std::shared_ptr<SystemClock> system_clock_;
SystemClock* clock_;
bool supports_direct_io_;
};
} // Anonymous namespace
// Partial implementation of the Env interface.
// Partial implementation of the FileSystem interface.
IOStatus MockFileSystem::NewSequentialFile(
const std::string& fname, const FileOptions& file_opts,
std::unique_ptr<FSSequentialFile>* result, IODebugContext* /*dbg*/) {
@ -705,7 +771,7 @@ IOStatus MockFileSystem::NewWritableFile(
if (file_map_.find(fn) != file_map_.end()) {
DeleteFileInternal(fn);
}
MemFile* file = new MemFile(env_, fn, false);
MemFile* file = new MemFile(clock_, fn, false);
file->Ref();
file_map_[fn] = file;
if (file_opts.use_direct_writes && !supports_direct_io_) {
@ -723,7 +789,7 @@ IOStatus MockFileSystem::ReopenWritableFile(
MutexLock lock(&mutex_);
MemFile* file = nullptr;
if (file_map_.find(fn) == file_map_.end()) {
file = new MemFile(env_, fn, false);
file = new MemFile(clock_, fn, false);
// Only take a reference when we create the file objectt
file->Ref();
file_map_[fn] = file;
@ -842,7 +908,7 @@ IOStatus MockFileSystem::CreateDir(const std::string& dirname,
auto dn = NormalizeMockPath(dirname);
MutexLock lock(&mutex_);
if (file_map_.find(dn) == file_map_.end()) {
MemFile* file = new MemFile(env_, dn, false);
MemFile* file = new MemFile(clock_, dn, false);
file->Ref();
file_map_[dn] = file;
} else {
@ -965,14 +1031,14 @@ IOStatus MockFileSystem::NewLogger(const std::string& fname,
auto iter = file_map_.find(fn);
MemFile* file = nullptr;
if (iter == file_map_.end()) {
file = new MemFile(env_, fn, false);
file = new MemFile(clock_, fn, false);
file->Ref();
file_map_[fn] = file;
} else {
file = iter->second;
}
std::unique_ptr<FSWritableFile> f(new MockWritableFile(file, FileOptions()));
result->reset(new TestMemLogger(std::move(f), env_, io_opts, dbg));
result->reset(new TestMemLogger(std::move(f), clock_, io_opts, dbg));
return IOStatus::OK();
}
@ -990,7 +1056,7 @@ IOStatus MockFileSystem::LockFile(const std::string& fname,
return IOStatus::IOError(fn, "lock is already held.");
}
} else {
auto* file = new MemFile(env_, fn, true);
auto* file = new MemFile(clock_, fn, true);
file->Ref();
file->Lock();
file_map_[fn] = file;
@ -1034,57 +1100,30 @@ Status MockFileSystem::CorruptBuffer(const std::string& fname) {
iter->second->CorruptBuffer();
return Status::OK();
}
namespace {
class MockSystemClock : public SystemClockWrapper {
public:
explicit MockSystemClock(const std::shared_ptr<SystemClock>& c)
: SystemClockWrapper(c), fake_sleep_micros_(0) {}
void FakeSleepForMicroseconds(int64_t micros) {
fake_sleep_micros_.fetch_add(micros);
}
MockEnv::MockEnv(Env* env, const std::shared_ptr<FileSystem>& fs,
const std::shared_ptr<SystemClock>& clock)
: CompositeEnvWrapper(env, fs, clock) {}
const char* Name() const override { return "MockSystemClock"; }
MockEnv* MockEnv::Create(Env* env) {
auto clock =
std::make_shared<EmulatedSystemClock>(env->GetSystemClock(), true);
return MockEnv::Create(env, clock);
}
Status GetCurrentTime(int64_t* unix_time) override {
auto s = SystemClockWrapper::GetCurrentTime(unix_time);
if (s.ok()) {
auto fake_time = fake_sleep_micros_.load() / (1000 * 1000);
*unix_time += fake_time;
}
return s;
}
uint64_t NowMicros() override {
return SystemClockWrapper::NowMicros() + fake_sleep_micros_.load();
}
uint64_t NowNanos() override {
return SystemClockWrapper::NowNanos() + fake_sleep_micros_.load() * 1000;
}
private:
std::atomic<int64_t> fake_sleep_micros_;
};
} // namespace
MockEnv::MockEnv(Env* base_env)
: CompositeEnvWrapper(
base_env, std::make_shared<MockFileSystem>(this),
std::make_shared<MockSystemClock>(base_env->GetSystemClock())) {}
MockEnv* MockEnv::Create(Env* env, const std::shared_ptr<SystemClock>& clock) {
auto fs = std::make_shared<MockFileSystem>(clock);
return new MockEnv(env, fs, clock);
}
Status MockEnv::CorruptBuffer(const std::string& fname) {
auto mock = static_cast_with_check<MockFileSystem>(GetFileSystem().get());
return mock->CorruptBuffer(fname);
}
void MockEnv::FakeSleepForMicroseconds(int64_t micros) {
auto mock = static_cast_with_check<MockSystemClock>(GetSystemClock().get());
mock->FakeSleepForMicroseconds(micros);
}
#ifndef ROCKSDB_LITE
// This is to maintain the behavior before swithcing from InMemoryEnv to MockEnv
Env* NewMemEnv(Env* base_env) { return new MockEnv(base_env); }
Env* NewMemEnv(Env* base_env) { return MockEnv::Create(base_env); }
#else // ROCKSDB_LITE

12
env/mock_env.h vendored
View File

@ -16,20 +16,18 @@
#include "env/composite_env_wrapper.h"
#include "rocksdb/env.h"
#include "rocksdb/status.h"
#include "rocksdb/system_clock.h"
namespace ROCKSDB_NAMESPACE {
class MockEnv : public CompositeEnvWrapper {
public:
explicit MockEnv(Env* base_env);
static MockEnv* Create(Env* base);
static MockEnv* Create(Env* base, const std::shared_ptr<SystemClock>& clock);
Status CorruptBuffer(const std::string& fname);
// Doesn't really sleep, just affects output of GetCurrentTime(), NowMicros()
// and NowNanos()
void FakeSleepForMicroseconds(int64_t micros);
private:
MockEnv(Env* env, const std::shared_ptr<FileSystem>& fs,
const std::shared_ptr<SystemClock>& clock);
};
} // namespace ROCKSDB_NAMESPACE

6
env/mock_env_test.cc vendored
View File

@ -19,9 +19,7 @@ class MockEnvTest : public testing::Test {
MockEnv* env_;
const EnvOptions soptions_;
MockEnvTest()
: env_(new MockEnv(Env::Default())) {
}
MockEnvTest() : env_(MockEnv::Create(Env::Default())) {}
~MockEnvTest() override { delete env_; }
};
@ -68,7 +66,7 @@ TEST_F(MockEnvTest, FakeSleeping) {
int64_t now = 0;
auto s = env_->GetCurrentTime(&now);
ASSERT_OK(s);
env_->FakeSleepForMicroseconds(3 * 1000 * 1000);
env_->SleepForMicroseconds(3 * 1000 * 1000);
int64_t after_sleep = 0;
s = env_->GetCurrentTime(&after_sleep);
ASSERT_OK(s);

21
include/rocksdb/system_clock.h
View File

@ -11,6 +11,7 @@
#include <memory>
#include "rocksdb/customizable.h"
#include "rocksdb/rocksdb_namespace.h"
#include "rocksdb/status.h"
@ -24,15 +25,21 @@ struct ConfigOptions;
// A SystemClock is an interface used by the rocksdb implementation to access
// operating system time-related functionality.
class SystemClock {
class SystemClock : public Customizable {
public:
virtual ~SystemClock() {}
static const char* Type() { return "SystemClock"; }
static Status CreateFromString(const ConfigOptions& options,
const std::string& value,
std::shared_ptr<SystemClock>* result);
// The name of this system clock
virtual const char* Name() const = 0;
// The name/nickname for the Default SystemClock. This name can be used
// to determine if the clock is the default one.
static const char* kDefaultName() { return "DefaultClock"; }
// Return a default SystemClock suitable for the current operating
// system.
static const std::shared_ptr<SystemClock>& Default();
@ -73,8 +80,7 @@ class SystemClock {
// of the SystemClock interface to the target/wrapped class.
class SystemClockWrapper : public SystemClock {
public:
explicit SystemClockWrapper(const std::shared_ptr<SystemClock>& t)
: target_(t) {}
explicit SystemClockWrapper(const std::shared_ptr<SystemClock>& t);
uint64_t NowMicros() override { return target_->NowMicros(); }
@ -96,6 +102,13 @@ class SystemClockWrapper : public SystemClock {
return target_->TimeToString(time);
}
Status PrepareOptions(const ConfigOptions& options) override;
#ifndef ROCKSDB_LITE
std::string SerializeOptions(const ConfigOptions& config_options,
const std::string& header) const override;
#endif // ROCKSDB_LITE
const Customizable* Inner() const override { return target_.get(); }
protected:
std::shared_ptr<SystemClock> target_;
};

29
logging/auto_roll_logger_test.cc
View File

@ -20,6 +20,7 @@
#include <vector>
#include "db/db_test_util.h"
#include "env/emulated_clock.h"
#include "logging/logging.h"
#include "port/port.h"
#include "rocksdb/db.h"
@ -30,25 +31,6 @@
#include "test_util/testutil.h"
namespace ROCKSDB_NAMESPACE {
namespace {
class NoSleepClock : public SystemClockWrapper {
public:
NoSleepClock(
const std::shared_ptr<SystemClock>& base = SystemClock::Default())
: SystemClockWrapper(base) {}
const char* Name() const override { return "NoSleepClock"; }
void SleepForMicroseconds(int micros) override {
fake_time_ += static_cast<uint64_t>(micros);
}
uint64_t NowNanos() override { return fake_time_ * 1000; }
uint64_t NowMicros() override { return fake_time_; }
private:
uint64_t fake_time_ = 6666666666;
};
} // namespace
// In this test we only want to Log some simple log message with
// no format. LogMessage() provides such a simple interface and
@ -219,7 +201,8 @@ TEST_F(AutoRollLoggerTest, RollLogFileBySize) {
}
TEST_F(AutoRollLoggerTest, RollLogFileByTime) {
auto nsc = std::make_shared<NoSleepClock>();
auto nsc =
std::make_shared<EmulatedSystemClock>(SystemClock::Default(), true);
size_t time = 2;
size_t log_size = 1024 * 5;
@ -288,7 +271,8 @@ TEST_F(AutoRollLoggerTest, CompositeRollByTimeAndSizeLogger) {
InitTestDb();
auto nsc = std::make_shared<NoSleepClock>();
auto nsc =
std::make_shared<EmulatedSystemClock>(SystemClock::Default(), true);
AutoRollLogger logger(FileSystem::Default(), nsc, kTestDir, "", log_max_size,
time, keep_log_file_num);
@ -306,7 +290,8 @@ TEST_F(AutoRollLoggerTest, CompositeRollByTimeAndSizeLogger) {
// port
TEST_F(AutoRollLoggerTest, CreateLoggerFromOptions) {
DBOptions options;
auto nsc = std::make_shared<NoSleepClock>();
auto nsc =
std::make_shared<EmulatedSystemClock>(SystemClock::Default(), true);
std::unique_ptr<Env> nse(new CompositeEnvWrapper(Env::Default(), nsc));
std::shared_ptr<Logger> logger;

1
logging/env_logger_test.cc
View File

@ -5,7 +5,6 @@
//
#include "logging/env_logger.h"
#include "env/mock_env.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"

24
monitoring/histogram_test.cc
View File

@ -31,11 +31,11 @@ void PopulateHistogram(Histogram& histogram,
for (uint64_t i = low; i <= high; i++) {
histogram.Add(i);
// sleep a random microseconds [0-10)
clock->MockSleepForMicroseconds(rnd.Uniform(10));
clock->SleepForMicroseconds(rnd.Uniform(10));
}
}
// make sure each data population at least take some time
clock->MockSleepForMicroseconds(1);
clock->SleepForMicroseconds(1);
}
void BasicOperation(Histogram& histogram) {
@ -143,21 +143,21 @@ TEST_F(HistogramTest, HistogramWindowingExpire) {
histogramWindowing(num_windows, micros_per_window, min_num_per_window);
histogramWindowing.TEST_UpdateClock(clock);
PopulateHistogram(histogramWindowing, 1, 1, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 100);
ASSERT_EQ(histogramWindowing.min(), 1);
ASSERT_EQ(histogramWindowing.max(), 1);
ASSERT_EQ(histogramWindowing.Average(), 1);
PopulateHistogram(histogramWindowing, 2, 2, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 200);
ASSERT_EQ(histogramWindowing.min(), 1);
ASSERT_EQ(histogramWindowing.max(), 2);
ASSERT_EQ(histogramWindowing.Average(), 1.5);
PopulateHistogram(histogramWindowing, 3, 3, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 300);
ASSERT_EQ(histogramWindowing.min(), 1);
ASSERT_EQ(histogramWindowing.max(), 3);
@ -165,7 +165,7 @@ TEST_F(HistogramTest, HistogramWindowingExpire) {
// dropping oldest window with value 1, remaining 2 ~ 4
PopulateHistogram(histogramWindowing, 4, 4, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 300);
ASSERT_EQ(histogramWindowing.min(), 2);
ASSERT_EQ(histogramWindowing.max(), 4);
@ -173,7 +173,7 @@ TEST_F(HistogramTest, HistogramWindowingExpire) {
// dropping oldest window with value 2, remaining 3 ~ 5
PopulateHistogram(histogramWindowing, 5, 5, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 300);
ASSERT_EQ(histogramWindowing.min(), 3);
ASSERT_EQ(histogramWindowing.max(), 5);
@ -194,15 +194,15 @@ TEST_F(HistogramTest, HistogramWindowingMerge) {
PopulateHistogram(histogramWindowing, 1, 1, 100);
PopulateHistogram(otherWindowing, 1, 1, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
PopulateHistogram(histogramWindowing, 2, 2, 100);
PopulateHistogram(otherWindowing, 2, 2, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
PopulateHistogram(histogramWindowing, 3, 3, 100);
PopulateHistogram(otherWindowing, 3, 3, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
histogramWindowing.Merge(otherWindowing);
ASSERT_EQ(histogramWindowing.num(), 600);
@ -212,14 +212,14 @@ TEST_F(HistogramTest, HistogramWindowingMerge) {
// dropping oldest window with value 1, remaining 2 ~ 4
PopulateHistogram(histogramWindowing, 4, 4, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 500);
ASSERT_EQ(histogramWindowing.min(), 2);
ASSERT_EQ(histogramWindowing.max(), 4);
// dropping oldest window with value 2, remaining 3 ~ 5
PopulateHistogram(histogramWindowing, 5, 5, 100);
clock->MockSleepForMicroseconds(micros_per_window);
clock->SleepForMicroseconds(micros_per_window);
ASSERT_EQ(histogramWindowing.num(), 400);
ASSERT_EQ(histogramWindowing.min(), 3);
ASSERT_EQ(histogramWindowing.max(), 5);

17
options/customizable_test.cc
View File

@ -28,6 +28,7 @@
#include "rocksdb/utilities/options_type.h"
#include "table/block_based/flush_block_policy.h"
#include "table/mock_table.h"
#include "test_util/mock_time_env.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "util/string_util.h"
@ -1627,6 +1628,22 @@ TEST_F(LoadCustomizableTest, LoadEncryptionCipherTest) {
}
#endif // !ROCKSDB_LITE
TEST_F(LoadCustomizableTest, LoadSystemClockTest) {
std::shared_ptr<SystemClock> result;
ASSERT_NOK(SystemClock::CreateFromString(
config_options_, MockSystemClock::kClassName(), &result));
ASSERT_OK(SystemClock::CreateFromString(
config_options_, SystemClock::kDefaultName(), &result));
ASSERT_NE(result, nullptr);
ASSERT_TRUE(result->IsInstanceOf(SystemClock::kDefaultName()));
if (RegisterTests("Test")) {
ASSERT_OK(SystemClock::CreateFromString(
config_options_, MockSystemClock::kClassName(), &result));
ASSERT_NE(result, nullptr);
ASSERT_STREQ(result->Name(), MockSystemClock::kClassName());
}
}
TEST_F(LoadCustomizableTest, LoadFlushBlockPolicyFactoryTest) {
std::shared_ptr<TableFactory> table;
std::shared_ptr<FlushBlockPolicyFactory> result;

4
port/win/env_win.h
View File

@ -79,7 +79,9 @@ class WinClock : public SystemClock {
WinClock();
virtual ~WinClock() {}
const char* Name() const override { return "WindowsClock"; }
static const char* kClassName() { return "WindowsClock"; }
const char* Name() const override { return kClassName(); }
const char* NickName() const override { return kDefaultName(); }
uint64_t NowMicros() override;

10
test_util/mock_time_env.h
View File

@ -20,7 +20,8 @@ class MockSystemClock : public SystemClockWrapper {
explicit MockSystemClock(const std::shared_ptr<SystemClock>& base)
: SystemClockWrapper(base) {}
const char* Name() const override { return "MockSystemClock"; }
static const char* kClassName() { return "MockSystemClock"; }
const char* Name() const override { return kClassName(); }
virtual Status GetCurrentTime(int64_t* time_sec) override {
assert(time_sec != nullptr);
*time_sec = static_cast<int64_t>(current_time_us_ / kMicrosInSecond);
@ -50,7 +51,7 @@ class MockSystemClock : public SystemClockWrapper {
// It's also similar to `set_current_time()`, which takes an absolute time in
// seconds, vs. this one takes the sleep in microseconds.
// Note: Not thread safe.
void MockSleepForMicroseconds(int micros) {
void SleepForMicroseconds(int micros) override {
assert(micros >= 0);
assert(current_time_us_ + static_cast<uint64_t>(micros) >=
current_time_us_);
@ -59,9 +60,8 @@ class MockSystemClock : public SystemClockWrapper {
void MockSleepForSeconds(int seconds) {
assert(seconds >= 0);
uint64_t micros = static_cast<uint64_t>(seconds) * kMicrosInSecond;
assert(current_time_us_ + micros >= current_time_us_);
current_time_us_.fetch_add(micros);
int micros = seconds * kMicrosInSecond;
SleepForMicroseconds(micros);
}
// TODO: this is a workaround for the different behavior on different platform

9
test_util/testutil.cc
View File

@ -26,6 +26,7 @@
#include "rocksdb/convenience.h"
#include "rocksdb/system_clock.h"
#include "rocksdb/utilities/object_registry.h"
#include "test_util/mock_time_env.h"
#include "test_util/sync_point.h"
#include "util/random.h"
@ -747,7 +748,13 @@ int RegisterTestObjects(ObjectLibrary& library, const std::string& /*arg*/) {
guard->reset(new test::ChanglingCompactionFilterFactory(uri));
return guard->get();
});
library.Register<SystemClock>(
MockSystemClock::kClassName(),
[](const std::string& /*uri*/, std::unique_ptr<SystemClock>* guard,
std::string* /* errmsg */) {
guard->reset(new MockSystemClock(SystemClock::Default()));
return guard->get();
});
return static_cast<int>(library.GetFactoryCount(&num_types));
}

2
util/file_reader_writer_test.cc
View File

@ -691,7 +691,7 @@ std::string GenerateLine(int n) {
TEST(LineFileReaderTest, LineFileReaderTest) {
const int nlines = 1000;
std::unique_ptr<MockEnv> mem_env(new MockEnv(Env::Default()));
std::unique_ptr<Env> mem_env(MockEnv::Create(Env::Default()));
std::shared_ptr<FileSystem> fs = mem_env->GetFileSystem();
// Create an input file
{

39
util/timer_test.cc
View File

@ -36,7 +36,7 @@ TEST_F(TimerTest, SingleScheduleOnce) {
ASSERT_EQ(0, count);
// Wait for execution to finish
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelayUs); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelayUs); });
ASSERT_EQ(1, count);
ASSERT_TRUE(timer.Shutdown());
@ -58,13 +58,13 @@ TEST_F(TimerTest, MultipleScheduleOnce) {
ASSERT_EQ(0, count2);
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelay1Us); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelay1Us); });
ASSERT_EQ(1, count1);
ASSERT_EQ(0, count2);
timer.TEST_WaitForRun([&] {
mock_clock_->MockSleepForMicroseconds(kInitDelay2Us - kInitDelay1Us);
mock_clock_->SleepForMicroseconds(kInitDelay2Us - kInitDelay1Us);
});
ASSERT_EQ(1, count1);
@ -86,14 +86,14 @@ TEST_F(TimerTest, SingleScheduleRepeatedly) {
ASSERT_EQ(0, count);
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelayUs); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelayUs); });
ASSERT_EQ(1, count);
// Wait for execution to finish
for (int i = 1; i < kIterations; i++) {
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kRepeatUs); });
[&] { mock_clock_->SleepForMicroseconds(kRepeatUs); });
}
ASSERT_EQ(kIterations, count);
@ -126,7 +126,7 @@ TEST_F(TimerTest, MultipleScheduleRepeatedly) {
// Wait for execution to finish
for (int i = 1; i < kIterations * (kRepeatUs / kUsPerSec); i++) {
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(1 * kUsPerSec); });
[&] { mock_clock_->SleepForMicroseconds(1 * kUsPerSec); });
ASSERT_EQ((i + 2) / (kRepeatUs / kUsPerSec), count1);
ASSERT_EQ((i + 1) / (kRepeatUs / kUsPerSec), count2);
@ -138,7 +138,7 @@ TEST_F(TimerTest, MultipleScheduleRepeatedly) {
// Wait for execution to finish
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(1 * kUsPerSec); });
[&] { mock_clock_->SleepForMicroseconds(1 * kUsPerSec); });
ASSERT_EQ(kIterations, count1);
ASSERT_EQ(kIterations, count2);
ASSERT_EQ(1, count3);
@ -150,7 +150,7 @@ TEST_F(TimerTest, MultipleScheduleRepeatedly) {
// execute the long interval one
timer.TEST_WaitForRun([&] {
mock_clock_->MockSleepForMicroseconds(
mock_clock_->SleepForMicroseconds(
kLargeRepeatUs - static_cast<int>(mock_clock_->NowMicros()));
});
ASSERT_EQ(2, count3);
@ -178,12 +178,12 @@ TEST_F(TimerTest, AddAfterStartTest) {
ASSERT_EQ(0, count);
// Wait for execution to finish
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelayUs); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelayUs); });
ASSERT_EQ(1, count);
for (int i = 1; i < kIterations; i++) {
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kRepeatUs); });
[&] { mock_clock_->SleepForMicroseconds(kRepeatUs); });
}
ASSERT_EQ(kIterations, count);
@ -220,7 +220,7 @@ TEST_F(TimerTest, CancelRunningTask) {
delete value;
value = nullptr;
});
mock_clock_->MockSleepForMicroseconds(kRepeatUs);
mock_clock_->SleepForMicroseconds(kRepeatUs);
control_thr.join();
ASSERT_TRUE(timer.Shutdown());
}
@ -258,7 +258,7 @@ TEST_F(TimerTest, ShutdownRunningTask) {
TEST_SYNC_POINT("TimerTest::ShutdownRunningTest:BeforeShutdown");
timer.Shutdown();
});
mock_clock_->MockSleepForMicroseconds(kRepeatUs);
mock_clock_->SleepForMicroseconds(kRepeatUs);
control_thr.join();
delete value;
}
@ -288,14 +288,13 @@ TEST_F(TimerTest, AddSameFuncName) {
ASSERT_EQ(0, func_counter2);
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelayUs); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelayUs); });
ASSERT_EQ(0, func_counter1);
ASSERT_EQ(1, func2_counter);
ASSERT_EQ(1, func_counter2);
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kRepeat1Us); });
timer.TEST_WaitForRun([&] { mock_clock_->SleepForMicroseconds(kRepeat1Us); });
ASSERT_EQ(0, func_counter1);
ASSERT_EQ(2, func2_counter);
@ -315,14 +314,14 @@ TEST_F(TimerTest, RepeatIntervalWithFuncRunningTime) {
int func_counter = 0;
timer.Add(
[&] {
mock_clock_->MockSleepForMicroseconds(kFuncRunningTimeUs);
mock_clock_->SleepForMicroseconds(kFuncRunningTimeUs);
func_counter++;
},
"func", kInitDelayUs, kRepeatUs);
ASSERT_EQ(0, func_counter);
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelayUs); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelayUs); });
ASSERT_EQ(1, func_counter);
ASSERT_EQ(kInitDelayUs + kFuncRunningTimeUs, mock_clock_->NowMicros());
@ -338,7 +337,7 @@ TEST_F(TimerTest, RepeatIntervalWithFuncRunningTime) {
// After the function running time, it's executed again
timer.TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kFuncRunningTimeUs); });
[&] { mock_clock_->SleepForMicroseconds(kFuncRunningTimeUs); });
ASSERT_EQ(2, func_counter);
ASSERT_TRUE(timer.Shutdown());
@ -355,7 +354,7 @@ TEST_F(TimerTest, DestroyRunningTimer) {
ASSERT_TRUE(timer_ptr->Start());
timer_ptr->TEST_WaitForRun(
[&] { mock_clock_->MockSleepForMicroseconds(kInitDelayUs); });
[&] { mock_clock_->SleepForMicroseconds(kInitDelayUs); });
// delete a running timer should not cause any exception
delete timer_ptr;
@ -389,7 +388,7 @@ TEST_F(TimerTest, DestroyTimerWithRunningFunc) {
TEST_SYNC_POINT("TimerTest::DestroyTimerWithRunningFunc:BeforeDelete");
delete timer_ptr;
});
mock_clock_->MockSleepForMicroseconds(kRepeatUs);
mock_clock_->SleepForMicroseconds(kRepeatUs);
control_thr.join();
}