| // Copyright 2022 The Dawn Authors |
| // |
| // Licensed 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. |
| |
| #include "dawn/native/BlobCache.h" |
| |
| #include <algorithm> |
| |
| #include "dawn/common/Assert.h" |
| #include "dawn/common/Version_autogen.h" |
| #include "dawn/native/CacheKey.h" |
| #include "dawn/native/Instance.h" |
| #include "dawn/platform/DawnPlatform.h" |
| |
| namespace dawn::native { |
| |
| BlobCache::BlobCache(dawn::platform::CachingInterface* cachingInterface) |
| : mCache(cachingInterface) {} |
| |
| Blob BlobCache::Load(const CacheKey& key) { |
| std::lock_guard<std::mutex> lock(mMutex); |
| return LoadInternal(key); |
| } |
| |
| void BlobCache::Store(const CacheKey& key, size_t valueSize, const void* value) { |
| std::lock_guard<std::mutex> lock(mMutex); |
| StoreInternal(key, valueSize, value); |
| } |
| |
| void BlobCache::Store(const CacheKey& key, const Blob& value) { |
| Store(key, value.Size(), value.Data()); |
| } |
| |
| Blob BlobCache::LoadInternal(const CacheKey& key) { |
| ASSERT(ValidateCacheKey(key)); |
| if (mCache == nullptr) { |
| return Blob(); |
| } |
| const size_t expectedSize = mCache->LoadData(key.data(), key.size(), nullptr, 0); |
| if (expectedSize > 0) { |
| // Need to put this inside to trigger copy elision. |
| Blob result = CreateBlob(expectedSize); |
| const size_t actualSize = |
| mCache->LoadData(key.data(), key.size(), result.Data(), expectedSize); |
| ASSERT(expectedSize == actualSize); |
| return result; |
| } |
| return Blob(); |
| } |
| |
| void BlobCache::StoreInternal(const CacheKey& key, size_t valueSize, const void* value) { |
| ASSERT(ValidateCacheKey(key)); |
| ASSERT(value != nullptr); |
| ASSERT(valueSize > 0); |
| if (mCache == nullptr) { |
| return; |
| } |
| mCache->StoreData(key.data(), key.size(), value, valueSize); |
| } |
| |
| bool BlobCache::ValidateCacheKey(const CacheKey& key) { |
| return std::search(key.begin(), key.end(), kDawnVersion.begin(), kDawnVersion.end()) != |
| key.end(); |
| } |
| |
| } // namespace dawn::native |