92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
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// 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.Register<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.Register<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.Register<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.Register<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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