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enhance: growing segment support mmap (#32633)
issue: #32984 Signed-off-by: cqy123456 <qianya.cheng@zilliz.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,195 @@ | ||
| // Licensed to the LF AI & Data foundation under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| #pragma once | ||
| #include "common/Array.h" | ||
| #include "storage/MmapManager.h" | ||
| namespace milvus { | ||
| /** | ||
| * @brief FixedLengthChunk | ||
| */ | ||
| template <typename Type> | ||
| struct FixedLengthChunk { | ||
| public: | ||
| FixedLengthChunk() = delete; | ||
| explicit FixedLengthChunk(const uint64_t size, | ||
| storage::MmapChunkDescriptor descriptor) | ||
| : mmap_descriptor_(descriptor), size_(size) { | ||
| auto mcm = storage::MmapManager::GetInstance().GetMmapChunkManager(); | ||
| data_ = (Type*)(mcm->Allocate(mmap_descriptor_, sizeof(Type) * size)); | ||
| AssertInfo(data_ != nullptr, | ||
| "failed to create a mmapchunk: {}, map_size"); | ||
| }; | ||
| void* | ||
| data() { | ||
| return data_; | ||
| }; | ||
| size_t | ||
| size() { | ||
| return size_; | ||
| }; | ||
| Type | ||
| get(const int i) const { | ||
| return data_[i]; | ||
| } | ||
| const Type& | ||
| view(const int i) const { | ||
| return data_[i]; | ||
| } | ||
|
|
||
| private: | ||
| int64_t size_ = 0; | ||
| Type* data_ = nullptr; | ||
| storage::MmapChunkDescriptor mmap_descriptor_ = nullptr; | ||
| }; | ||
| /** | ||
| * @brief VariableLengthChunk | ||
| */ | ||
| template <typename Type> | ||
| struct VariableLengthChunk { | ||
| static_assert(IsVariableTypeSupportInChunk<Type>); | ||
|
|
||
| public: | ||
| VariableLengthChunk() = delete; | ||
| explicit VariableLengthChunk(const uint64_t size, | ||
| storage::MmapChunkDescriptor descriptor) | ||
| : mmap_descriptor_(descriptor), size_(size) { | ||
| data_ = FixedVector<ChunkViewType<Type>>(size); | ||
| }; | ||
| inline void | ||
| set(const Type* src, uint32_t begin, uint32_t length) { | ||
| throw std::runtime_error( | ||
| "set should be a template specialization function"); | ||
| } | ||
| inline Type | ||
| get(const int i) const { | ||
| throw std::runtime_error( | ||
| "get should be a template specialization function"); | ||
| } | ||
| const ChunkViewType<Type>& | ||
| view(const int i) const { | ||
| return data_[i]; | ||
| } | ||
| const ChunkViewType<Type>& | ||
| operator[](const int i) const { | ||
| return view(i); | ||
| } | ||
| void* | ||
| data() { | ||
| return data_.data(); | ||
| }; | ||
| size_t | ||
| size() { | ||
| return size_; | ||
| }; | ||
|
|
||
| private: | ||
| int64_t size_ = 0; | ||
| FixedVector<ChunkViewType<Type>> data_; | ||
| storage::MmapChunkDescriptor mmap_descriptor_ = nullptr; | ||
| }; | ||
| template <> | ||
| inline void | ||
| VariableLengthChunk<std::string>::set(const std::string* src, | ||
| uint32_t begin, | ||
| uint32_t length) { | ||
| auto mcm = storage::MmapManager::GetInstance().GetMmapChunkManager(); | ||
| milvus::ErrorCode err_code; | ||
| AssertInfo( | ||
| begin + length <= size_, | ||
| "failed to set a chunk with length: {} from beign {}, map_size={}", | ||
| length, | ||
| begin, | ||
| size_); | ||
| for (auto i = 0; i < length; i++) { | ||
| auto buf_size = src[i].size() + 1; | ||
| auto buf = (char*)mcm->Allocate(mmap_descriptor_, buf_size); | ||
| AssertInfo(buf != nullptr, | ||
| "failed to allocate memory from mmap_manager, error_code"); | ||
| std::strcpy(buf, src[i].c_str()); | ||
| data_[i + begin] = std::string_view(buf, src[i].size()); | ||
| } | ||
| } | ||
| template <> | ||
| inline std::string | ||
| VariableLengthChunk<std::string>::get(const int i) const { | ||
| // copy to a string | ||
| return std::string(data_[i]); | ||
| } | ||
| template <> | ||
| inline void | ||
| VariableLengthChunk<Json>::set(const Json* src, | ||
| uint32_t begin, | ||
| uint32_t length) { | ||
| auto mcm = storage::MmapManager::GetInstance().GetMmapChunkManager(); | ||
| milvus::ErrorCode err_code; | ||
| AssertInfo( | ||
| begin + length <= size_, | ||
| "failed to set a chunk with length: {} from beign {}, map_size={}", | ||
| length, | ||
| begin, | ||
| size_); | ||
| for (auto i = 0; i < length; i++) { | ||
| auto buf_size = src[i].size() + simdjson::SIMDJSON_PADDING + 1; | ||
| auto buf = (char*)mcm->Allocate(mmap_descriptor_, buf_size); | ||
| AssertInfo( | ||
| buf != nullptr, | ||
| "failed to allocate memory from mmap_manager, error_code:{}"); | ||
| std::strcpy(buf, src[i].c_str()); | ||
| data_[i + begin] = Json(buf, src[i].size()); | ||
| } | ||
| } | ||
| template <> | ||
| inline Json | ||
| VariableLengthChunk<Json>::get(const int i) const { | ||
| return std::move(Json(simdjson::padded_string(data_[i].data()))); | ||
| } | ||
| template <> | ||
| inline void | ||
| VariableLengthChunk<Array>::set(const Array* src, | ||
| uint32_t begin, | ||
| uint32_t length) { | ||
| auto mcm = storage::MmapManager::GetInstance().GetMmapChunkManager(); | ||
| milvus::ErrorCode err_code; | ||
| AssertInfo( | ||
| begin + length <= size_, | ||
| "failed to set a chunk with length: {} from beign {}, map_size={}", | ||
| length, | ||
| begin, | ||
| size_); | ||
| for (auto i = 0; i < length; i++) { | ||
| auto array_data = | ||
| (char*)mcm->Allocate(mmap_descriptor_, src[i].byte_size()); | ||
| AssertInfo(array_data != nullptr, | ||
| "failed to allocate memory from mmap_manager, error_code"); | ||
| std::copy( | ||
| src[i].data(), src[i].data() + src[i].byte_size(), array_data); | ||
| data_[i + begin] = ArrayView(array_data, | ||
| src[i].byte_size(), | ||
| src[i].get_element_type(), | ||
| src[i].get_offsets_in_copy()); | ||
| } | ||
| } | ||
| template <> | ||
| inline Array | ||
| VariableLengthChunk<Array>::get(const int i) const { | ||
| auto array_view_i = data_[i]; | ||
| char* data = static_cast<char*>(const_cast<void*>(array_view_i.data())); | ||
| return Array(data, | ||
| array_view_i.byte_size(), | ||
| array_view_i.get_element_type(), | ||
| array_view_i.get_offsets_in_copy()); | ||
| } | ||
| } // namespace milvus |
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