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f92040a3d9
- Removed to allow for easier development changes to caching interface as it is implemented for pipeline caching without having to keep supporting this incomplete feature. Bug: dawn:549, dawn:1341 Change-Id: Id27deca45ac5607a4a6a7a016b19e3d60693ed72 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87610 Reviewed-by: Austin Eng <enga@chromium.org> Reviewed-by: Shrek Shao <shrekshao@google.com> Commit-Queue: Loko Kung <lokokung@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
// Copyright 2022 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_DAWN_NATIVE_BLOBCACHE_H_
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#define SRC_DAWN_NATIVE_BLOBCACHE_H_
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#include <memory>
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#include <mutex>
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namespace dawn::platform {
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class CachingInterface;
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}
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namespace dawn::native {
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class BlobCache;
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class CacheKey;
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class InstanceBase;
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class CachedBlob {
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public:
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explicit CachedBlob(size_t size = 0);
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bool Empty() const;
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const uint8_t* Data() const;
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uint8_t* Data();
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size_t Size() const;
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void Reset(size_t size);
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private:
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std::unique_ptr<uint8_t[]> mData = nullptr;
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size_t mSize = 0;
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};
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// This class should always be thread-safe because it may be called asynchronously. Its purpose
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// is to wrap the CachingInterface provided via a platform.
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class BlobCache {
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public:
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explicit BlobCache(dawn::platform::CachingInterface* cachingInterface = nullptr);
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// Returns empty blob if the key is not found in the cache.
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CachedBlob Load(const CacheKey& key);
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// Value to store must be non-empty/non-null.
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void Store(const CacheKey& key, size_t valueSize, const void* value);
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void Store(const CacheKey& key, const CachedBlob& value);
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private:
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// Non-thread safe internal implementations of load and store. Exposed callers that use
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// these helpers need to make sure that these are entered with `mMutex` held.
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CachedBlob LoadInternal(const CacheKey& key);
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void StoreInternal(const CacheKey& key, size_t valueSize, const void* value);
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// Protects thread safety of access to mCache.
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std::mutex mMutex;
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// TODO(dawn:549): Current CachingInterface declaration requires passing a device to each
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// call, but this might be unnecessary. This class just passes nullptr for those calls
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// right now. Eventually we can just change the interface to be more generic.
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dawn::platform::CachingInterface* mCache;
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};
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} // namespace dawn::native
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#endif // SRC_DAWN_NATIVE_BLOBCACHE_H_
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