1973fcba11
Summary: In order to support old-style regex function registration, restored the original "Register<T>(string, Factory)" method using regular expressions. The PatternEntry methods were left in place but renamed to AddFactory. The goal is to allow for the deprecation of the original regex Registry method in an upcoming release. Added modes to the PatternEntry kMatchZeroOrMore and kMatchAtLeastOne to match * or +, respectively (kMatchAtLeastOne was the original behavior). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9362 Reviewed By: pdillinger Differential Revision: D33432562 Pulled By: mrambacher fbshipit-source-id: ed88ab3f9a2ad0d525c7bd1692873f9bb3209d02
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
// Copyright (c) 2011-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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#include "rocksdb/memory_allocator.h"
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#include "memory/jemalloc_nodump_allocator.h"
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#include "memory/memkind_kmem_allocator.h"
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#include "rocksdb/utilities/customizable_util.h"
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#include "rocksdb/utilities/object_registry.h"
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#include "rocksdb/utilities/options_type.h"
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#include "utilities/memory_allocators.h"
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namespace ROCKSDB_NAMESPACE {
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namespace {
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static std::unordered_map<std::string, OptionTypeInfo> ma_wrapper_type_info = {
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#ifndef ROCKSDB_LITE
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{"target", OptionTypeInfo::AsCustomSharedPtr<MemoryAllocator>(
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0, OptionVerificationType::kByName, OptionTypeFlags::kNone)},
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#endif // ROCKSDB_LITE
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};
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#ifndef ROCKSDB_LITE
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static int RegisterBuiltinAllocators(ObjectLibrary& library,
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const std::string& /*arg*/) {
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library.AddFactory<MemoryAllocator>(
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DefaultMemoryAllocator::kClassName(),
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[](const std::string& /*uri*/, std::unique_ptr<MemoryAllocator>* guard,
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std::string* /*errmsg*/) {
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guard->reset(new DefaultMemoryAllocator());
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return guard->get();
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});
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library.AddFactory<MemoryAllocator>(
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CountedMemoryAllocator::kClassName(),
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[](const std::string& /*uri*/, std::unique_ptr<MemoryAllocator>* guard,
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std::string* /*errmsg*/) {
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guard->reset(new CountedMemoryAllocator(
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std::make_shared<DefaultMemoryAllocator>()));
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return guard->get();
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});
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library.AddFactory<MemoryAllocator>(
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JemallocNodumpAllocator::kClassName(),
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[](const std::string& /*uri*/, std::unique_ptr<MemoryAllocator>* guard,
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std::string* errmsg) {
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if (JemallocNodumpAllocator::IsSupported(errmsg)) {
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JemallocAllocatorOptions options;
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guard->reset(new JemallocNodumpAllocator(options));
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}
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return guard->get();
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});
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library.AddFactory<MemoryAllocator>(
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MemkindKmemAllocator::kClassName(),
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[](const std::string& /*uri*/, std::unique_ptr<MemoryAllocator>* guard,
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std::string* errmsg) {
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if (MemkindKmemAllocator::IsSupported(errmsg)) {
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guard->reset(new MemkindKmemAllocator());
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}
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return guard->get();
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});
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size_t num_types;
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return static_cast<int>(library.GetFactoryCount(&num_types));
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}
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#endif // ROCKSDB_LITE
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} // namespace
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MemoryAllocatorWrapper::MemoryAllocatorWrapper(
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const std::shared_ptr<MemoryAllocator>& t)
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: target_(t) {
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RegisterOptions("", &target_, &ma_wrapper_type_info);
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}
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Status MemoryAllocator::CreateFromString(
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const ConfigOptions& options, const std::string& value,
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std::shared_ptr<MemoryAllocator>* result) {
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#ifndef ROCKSDB_LITE
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static std::once_flag once;
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std::call_once(once, [&]() {
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RegisterBuiltinAllocators(*(ObjectLibrary::Default().get()), "");
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});
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#else
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if (value == DefaultMemoryAllocator::kClassName()) {
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result->reset(new DefaultMemoryAllocator());
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return Status::OK();
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}
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#endif // ROCKSDB_LITE
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ConfigOptions copy = options;
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copy.invoke_prepare_options = true;
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return LoadManagedObject<MemoryAllocator>(copy, value, result);
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}
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} // namespace ROCKSDB_NAMESPACE
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