mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-08-28 14:35:53 +00:00
1b4da5d28f
Bug: dawn:1480 Change-Id: I77facc854ce9d5fe41c2332236113f266178470a Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94660 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Loko Kung <lokokung@google.com> Commit-Queue: Austin Eng <enga@chromium.org>
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
// 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.
|
|
|
|
#ifndef SRC_DAWN_NATIVE_BLOBCACHE_H_
|
|
#define SRC_DAWN_NATIVE_BLOBCACHE_H_
|
|
|
|
#include <mutex>
|
|
|
|
#include "dawn/common/Platform.h"
|
|
#include "dawn/native/Blob.h"
|
|
#include "dawn/native/CacheResult.h"
|
|
|
|
namespace dawn::platform {
|
|
class CachingInterface;
|
|
}
|
|
|
|
namespace dawn::native {
|
|
|
|
class CacheKey;
|
|
class InstanceBase;
|
|
|
|
// This class should always be thread-safe because it may be called asynchronously. Its purpose
|
|
// is to wrap the CachingInterface provided via a platform.
|
|
class BlobCache {
|
|
public:
|
|
explicit BlobCache(dawn::platform::CachingInterface* cachingInterface = nullptr);
|
|
|
|
// Returns empty blob if the key is not found in the cache.
|
|
Blob Load(const CacheKey& key);
|
|
|
|
// Value to store must be non-empty/non-null.
|
|
void Store(const CacheKey& key, size_t valueSize, const void* value);
|
|
void Store(const CacheKey& key, const Blob& value);
|
|
|
|
// Other types may specialize BlobCache::Store<T> to define how T is serialized into the cache.
|
|
template <typename T>
|
|
void Store(const CacheKey& key, const T& value);
|
|
|
|
// Store a CacheResult into the cache if it isn't cached yet.
|
|
// Calls Store<T> which should be defined elsewhere.
|
|
template <typename T>
|
|
void EnsureStored(const CacheResult<T>& cacheResult) {
|
|
if (!cacheResult.IsCached()) {
|
|
Store(cacheResult.GetCacheKey(), *cacheResult);
|
|
}
|
|
}
|
|
|
|
private:
|
|
// Non-thread safe internal implementations of load and store. Exposed callers that use
|
|
// these helpers need to make sure that these are entered with `mMutex` held.
|
|
Blob LoadInternal(const CacheKey& key);
|
|
void StoreInternal(const CacheKey& key, size_t valueSize, const void* value);
|
|
|
|
// Validates the cache key for this version of Dawn. At the moment, this is naively checking
|
|
// that the cache key contains the dawn version string in it.
|
|
bool ValidateCacheKey(const CacheKey& key);
|
|
|
|
// Protects thread safety of access to mCache.
|
|
std::mutex mMutex;
|
|
dawn::platform::CachingInterface* mCache;
|
|
};
|
|
|
|
} // namespace dawn::native
|
|
|
|
#endif // SRC_DAWN_NATIVE_BLOBCACHE_H_
|