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0fb938c448
Summary: ManagedObjects are shared pointer objects where RocksDB wants to share a single object between multiple configurations. For example, the Cache may be shared between multiple column families/tables or the Statistics may be shared between multiple databases. ManagedObjects are stored in the ObjectRegistry by Type (e.g. Cache) and ID. For a given type/ID name, a single object is stored. APIs were added to get/set/create these objects. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8658 Reviewed By: pdillinger Differential Revision: D30806273 Pulled By: mrambacher fbshipit-source-id: 832ac4423b210c4c4b4a456b35897334775d3160
450 lines
17 KiB
C++
450 lines
17 KiB
C++
// Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#ifndef ROCKSDB_LITE
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#include "rocksdb/utilities/object_registry.h"
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#include "rocksdb/customizable.h"
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#include "test_util/testharness.h"
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namespace ROCKSDB_NAMESPACE {
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class EnvRegistryTest : public testing::Test {
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public:
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static int num_a, num_b;
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};
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int EnvRegistryTest::num_a = 0;
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int EnvRegistryTest::num_b = 0;
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static FactoryFunc<Env> test_reg_a = ObjectLibrary::Default()->Register<Env>(
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"a://.*",
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[](const std::string& /*uri*/, std::unique_ptr<Env>* /*env_guard*/,
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std::string* /* errmsg */) {
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++EnvRegistryTest::num_a;
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return Env::Default();
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});
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static FactoryFunc<Env> test_reg_b = ObjectLibrary::Default()->Register<Env>(
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"b://.*", [](const std::string& /*uri*/, std::unique_ptr<Env>* env_guard,
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std::string* /* errmsg */) {
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++EnvRegistryTest::num_b;
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// Env::Default() is a singleton so we can't grant ownership directly to
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// the caller - we must wrap it first.
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env_guard->reset(new EnvWrapper(Env::Default()));
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return env_guard->get();
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});
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TEST_F(EnvRegistryTest, Basics) {
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std::string msg;
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std::unique_ptr<Env> env_guard;
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auto registry = ObjectRegistry::NewInstance();
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auto res = registry->NewObject<Env>("a://test", &env_guard, &msg);
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ASSERT_NE(res, nullptr);
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ASSERT_EQ(env_guard, nullptr);
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ASSERT_EQ(1, num_a);
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ASSERT_EQ(0, num_b);
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res = registry->NewObject<Env>("b://test", &env_guard, &msg);
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ASSERT_NE(res, nullptr);
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ASSERT_NE(env_guard, nullptr);
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ASSERT_EQ(1, num_a);
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ASSERT_EQ(1, num_b);
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res = registry->NewObject<Env>("c://test", &env_guard, &msg);
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ASSERT_EQ(res, nullptr);
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ASSERT_EQ(env_guard, nullptr);
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ASSERT_EQ(1, num_a);
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ASSERT_EQ(1, num_b);
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}
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TEST_F(EnvRegistryTest, LocalRegistry) {
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std::string msg;
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std::unique_ptr<Env> guard;
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auto registry = ObjectRegistry::NewInstance();
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std::shared_ptr<ObjectLibrary> library =
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std::make_shared<ObjectLibrary>("local");
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registry->AddLibrary(library);
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library->Register<Env>(
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"test-local",
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[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
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std::string* /* errmsg */) { return Env::Default(); });
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ObjectLibrary::Default()->Register<Env>(
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"test-global",
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[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
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std::string* /* errmsg */) { return Env::Default(); });
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ASSERT_EQ(
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ObjectRegistry::NewInstance()->NewObject<Env>("test-local", &guard, &msg),
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nullptr);
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ASSERT_NE(
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ObjectRegistry::NewInstance()->NewObject("test-global", &guard, &msg),
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nullptr);
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ASSERT_NE(registry->NewObject<Env>("test-local", &guard, &msg), nullptr);
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ASSERT_NE(registry->NewObject<Env>("test-global", &guard, &msg), nullptr);
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}
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TEST_F(EnvRegistryTest, CheckShared) {
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std::shared_ptr<Env> shared;
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std::shared_ptr<ObjectRegistry> registry = ObjectRegistry::NewInstance();
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std::shared_ptr<ObjectLibrary> library =
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std::make_shared<ObjectLibrary>("shared");
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registry->AddLibrary(library);
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library->Register<Env>(
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"unguarded",
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[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
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std::string* /* errmsg */) { return Env::Default(); });
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library->Register<Env>(
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"guarded", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
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std::string* /* errmsg */) {
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guard->reset(new EnvWrapper(Env::Default()));
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return guard->get();
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});
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ASSERT_OK(registry->NewSharedObject<Env>("guarded", &shared));
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ASSERT_NE(shared, nullptr);
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shared.reset();
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ASSERT_NOK(registry->NewSharedObject<Env>("unguarded", &shared));
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ASSERT_EQ(shared, nullptr);
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}
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TEST_F(EnvRegistryTest, CheckStatic) {
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Env* env = nullptr;
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std::shared_ptr<ObjectRegistry> registry = ObjectRegistry::NewInstance();
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std::shared_ptr<ObjectLibrary> library =
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std::make_shared<ObjectLibrary>("static");
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registry->AddLibrary(library);
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library->Register<Env>(
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"unguarded",
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[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
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std::string* /* errmsg */) { return Env::Default(); });
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library->Register<Env>(
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"guarded", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
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std::string* /* errmsg */) {
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guard->reset(new EnvWrapper(Env::Default()));
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return guard->get();
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});
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ASSERT_NOK(registry->NewStaticObject<Env>("guarded", &env));
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ASSERT_EQ(env, nullptr);
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env = nullptr;
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ASSERT_OK(registry->NewStaticObject<Env>("unguarded", &env));
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ASSERT_NE(env, nullptr);
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}
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TEST_F(EnvRegistryTest, CheckUnique) {
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std::unique_ptr<Env> unique;
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std::shared_ptr<ObjectRegistry> registry = ObjectRegistry::NewInstance();
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std::shared_ptr<ObjectLibrary> library =
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std::make_shared<ObjectLibrary>("unique");
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registry->AddLibrary(library);
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library->Register<Env>(
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"unguarded",
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[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
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std::string* /* errmsg */) { return Env::Default(); });
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library->Register<Env>(
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"guarded", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
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std::string* /* errmsg */) {
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guard->reset(new EnvWrapper(Env::Default()));
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return guard->get();
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});
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ASSERT_OK(registry->NewUniqueObject<Env>("guarded", &unique));
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ASSERT_NE(unique, nullptr);
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unique.reset();
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ASSERT_NOK(registry->NewUniqueObject<Env>("unguarded", &unique));
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ASSERT_EQ(unique, nullptr);
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}
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TEST_F(EnvRegistryTest, TestRegistryParents) {
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auto grand = ObjectRegistry::Default();
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auto parent = ObjectRegistry::NewInstance(); // parent with a grandparent
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auto uncle = ObjectRegistry::NewInstance(grand);
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auto child = ObjectRegistry::NewInstance(parent);
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auto cousin = ObjectRegistry::NewInstance(uncle);
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auto library = parent->AddLibrary("parent");
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library->Register<Env>(
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"parent", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
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std::string* /* errmsg */) {
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guard->reset(new EnvWrapper(Env::Default()));
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return guard->get();
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});
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library = cousin->AddLibrary("cousin");
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library->Register<Env>(
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"cousin", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
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std::string* /* errmsg */) {
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guard->reset(new EnvWrapper(Env::Default()));
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return guard->get();
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});
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std::unique_ptr<Env> guard;
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std::string msg;
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// a:://* is registered in Default, so they should all workd
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ASSERT_NE(parent->NewObject<Env>("a://test", &guard, &msg), nullptr);
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ASSERT_NE(child->NewObject<Env>("a://test", &guard, &msg), nullptr);
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ASSERT_NE(uncle->NewObject<Env>("a://test", &guard, &msg), nullptr);
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ASSERT_NE(cousin->NewObject<Env>("a://test", &guard, &msg), nullptr);
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// The parent env is only registered for parent, not uncle,
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// So parent and child should return success and uncle and cousin should fail
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ASSERT_OK(parent->NewUniqueObject<Env>("parent", &guard));
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ASSERT_OK(child->NewUniqueObject<Env>("parent", &guard));
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ASSERT_NOK(uncle->NewUniqueObject<Env>("parent", &guard));
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ASSERT_NOK(cousin->NewUniqueObject<Env>("parent", &guard));
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// The cousin is only registered in the cousin, so all of the others should
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// fail
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ASSERT_OK(cousin->NewUniqueObject<Env>("cousin", &guard));
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ASSERT_NOK(parent->NewUniqueObject<Env>("cousin", &guard));
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ASSERT_NOK(child->NewUniqueObject<Env>("cousin", &guard));
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ASSERT_NOK(uncle->NewUniqueObject<Env>("cousin", &guard));
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}
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class MyCustomizable : public Customizable {
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public:
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static const char* Type() { return "MyCustomizable"; }
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MyCustomizable(const char* prefix, const std::string& id) : id_(id) {
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name_ = id_.substr(0, strlen(prefix) - 1);
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}
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const char* Name() const override { return name_.c_str(); }
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std::string GetId() const override { return id_; }
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private:
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std::string id_;
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std::string name_;
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};
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TEST_F(EnvRegistryTest, TestManagedObjects) {
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auto registry = ObjectRegistry::NewInstance();
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auto m_a1 = std::make_shared<MyCustomizable>("", "A");
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auto m_a2 = std::make_shared<MyCustomizable>("", "A");
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_OK(registry->SetManagedObject<MyCustomizable>(m_a1));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a1);
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ASSERT_NOK(registry->SetManagedObject<MyCustomizable>(m_a2));
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ASSERT_OK(registry->SetManagedObject<MyCustomizable>(m_a1));
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m_a1.reset();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_OK(registry->SetManagedObject<MyCustomizable>(m_a2));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a2);
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}
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TEST_F(EnvRegistryTest, TestTwoManagedObjects) {
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auto registry = ObjectRegistry::NewInstance();
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auto m_a = std::make_shared<MyCustomizable>("", "A");
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auto m_b = std::make_shared<MyCustomizable>("", "B");
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std::vector<std::shared_ptr<MyCustomizable>> objects;
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), nullptr);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 0U);
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ASSERT_OK(registry->SetManagedObject(m_a));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 1U);
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ASSERT_EQ(objects.front(), m_a);
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ASSERT_OK(registry->SetManagedObject(m_b));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), m_b);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 2U);
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ASSERT_OK(registry->ListManagedObjects("A", &objects));
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ASSERT_EQ(objects.size(), 1U);
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ASSERT_EQ(objects.front(), m_a);
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ASSERT_OK(registry->ListManagedObjects("B", &objects));
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ASSERT_EQ(objects.size(), 1U);
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ASSERT_EQ(objects.front(), m_b);
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ASSERT_OK(registry->ListManagedObjects("C", &objects));
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ASSERT_EQ(objects.size(), 0U);
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m_a.reset();
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objects.clear();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), m_b);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 1U);
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ASSERT_EQ(objects.front(), m_b);
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m_b.reset();
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objects.clear();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), nullptr);
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}
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TEST_F(EnvRegistryTest, TestAlternateNames) {
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auto registry = ObjectRegistry::NewInstance();
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auto m_a = std::make_shared<MyCustomizable>("", "A");
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auto m_b = std::make_shared<MyCustomizable>("", "B");
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std::vector<std::shared_ptr<MyCustomizable>> objects;
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// Test no objects exist
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("TheOne"), nullptr);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 0U);
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// Mark "TheOne" to be A
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ASSERT_OK(registry->SetManagedObject("TheOne", m_a));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("TheOne"), m_a);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 1U);
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ASSERT_EQ(objects.front(), m_a);
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// Try to mark "TheOne" again.
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ASSERT_NOK(registry->SetManagedObject("TheOne", m_b));
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ASSERT_OK(registry->SetManagedObject("TheOne", m_a));
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// Add "A" as a managed object. Registered 2x
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ASSERT_OK(registry->SetManagedObject(m_a));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("B"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("TheOne"), m_a);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 2U);
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// Delete "A".
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m_a.reset();
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objects.clear();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("TheOne"), nullptr);
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ASSERT_OK(registry->SetManagedObject("TheOne", m_b));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("TheOne"), m_b);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 1U);
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ASSERT_EQ(objects.front(), m_b);
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m_b.reset();
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objects.clear();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("TheOne"), nullptr);
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ASSERT_OK(registry->ListManagedObjects(&objects));
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ASSERT_EQ(objects.size(), 0U);
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}
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TEST_F(EnvRegistryTest, TestTwoManagedClasses) {
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class MyCustomizable2 : public MyCustomizable {
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public:
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static const char* Type() { return "MyCustomizable2"; }
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MyCustomizable2(const char* prefix, const std::string& id)
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: MyCustomizable(prefix, id) {}
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};
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auto registry = ObjectRegistry::NewInstance();
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auto m_a1 = std::make_shared<MyCustomizable>("", "A");
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auto m_a2 = std::make_shared<MyCustomizable2>("", "A");
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std::vector<std::shared_ptr<MyCustomizable>> obj1s;
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std::vector<std::shared_ptr<MyCustomizable2>> obj2s;
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable2>("A"), nullptr);
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ASSERT_OK(registry->SetManagedObject(m_a1));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a1);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable2>("A"), nullptr);
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ASSERT_OK(registry->SetManagedObject(m_a2));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable2>("A"), m_a2);
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ASSERT_OK(registry->ListManagedObjects(&obj1s));
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ASSERT_OK(registry->ListManagedObjects(&obj2s));
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ASSERT_EQ(obj1s.size(), 1U);
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ASSERT_EQ(obj2s.size(), 1U);
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ASSERT_EQ(obj1s.front(), m_a1);
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ASSERT_EQ(obj2s.front(), m_a2);
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m_a1.reset();
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obj1s.clear();
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obj2s.clear();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable2>("A"), m_a2);
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m_a2.reset();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable2>("A"), nullptr);
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}
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TEST_F(EnvRegistryTest, TestManagedObjectsWithParent) {
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auto base = ObjectRegistry::NewInstance();
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auto registry = ObjectRegistry::NewInstance(base);
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auto m_a = std::make_shared<MyCustomizable>("", "A");
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auto m_b = std::make_shared<MyCustomizable>("", "A");
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_OK(base->SetManagedObject(m_a));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_a);
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ASSERT_NOK(registry->SetManagedObject(m_b));
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ASSERT_OK(registry->SetManagedObject(m_a));
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m_a.reset();
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), nullptr);
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ASSERT_OK(registry->SetManagedObject(m_b));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("A"), m_b);
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}
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TEST_F(EnvRegistryTest, TestGetOrCreateManagedObject) {
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auto registry = ObjectRegistry::NewInstance();
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registry->AddLibrary("test")->Register<MyCustomizable>(
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"MC(@.*)?",
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[](const std::string& uri, std::unique_ptr<MyCustomizable>* guard,
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std::string* /* errmsg */) {
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guard->reset(new MyCustomizable("MC", uri));
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return guard->get();
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});
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std::shared_ptr<MyCustomizable> m_a, m_b, obj;
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std::vector<std::shared_ptr<MyCustomizable>> objs;
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std::unordered_map<std::string, std::string> opt_map;
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("MC@A"), nullptr);
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("MC@B"), nullptr);
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ASSERT_OK(registry->GetOrCreateManagedObject("MC@A", &m_a));
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ASSERT_OK(registry->GetOrCreateManagedObject("MC@B", &m_b));
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ASSERT_EQ(registry->GetManagedObject<MyCustomizable>("MC@A"), m_a);
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ASSERT_OK(registry->GetOrCreateManagedObject("MC@A", &obj));
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ASSERT_EQ(obj, m_a);
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ASSERT_OK(registry->GetOrCreateManagedObject("MC@B", &obj));
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ASSERT_EQ(obj, m_b);
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ASSERT_OK(registry->ListManagedObjects(&objs));
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ASSERT_EQ(objs.size(), 2U);
|
|
|
|
objs.clear();
|
|
m_a.reset();
|
|
obj.reset();
|
|
ASSERT_OK(registry->GetOrCreateManagedObject("MC@A", &m_a));
|
|
ASSERT_EQ(1, m_a.use_count());
|
|
ASSERT_OK(registry->GetOrCreateManagedObject("MC@B", &obj));
|
|
ASSERT_EQ(2, obj.use_count());
|
|
}
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|
|
#else // ROCKSDB_LITE
|
|
#include <stdio.h>
|
|
|
|
int main(int /*argc*/, char** /*argv*/) {
|
|
fprintf(stderr, "SKIPPED as EnvRegistry is not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|