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https://github.com/encounter/dawn-cmake.git
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7289bca018
Motivation is to simplify cache evicting by reusing the LRU to evict stale entries from older Dawn versions since there isn't already a simple cache busting solution. The dawn version will just be pushed into the cache keys instead so old version entries will eventually be retired. - Removes the fingerprint from the GetCachingInterface API on DawnNative. - Adds the "fingerprint", which was just the hash, to the device;s cache key directly instead. Bug: dawn:549 Change-Id: I573aa03a2bb96dfe044293b1176d3a7746725572 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94140 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Loko Kung <lokokung@google.com>
77 lines
2.4 KiB
C++
77 lines
2.4 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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#include "dawn/native/BlobCache.h"
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#include <algorithm>
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#include "dawn/common/Assert.h"
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#include "dawn/common/Version_autogen.h"
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#include "dawn/native/CacheKey.h"
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#include "dawn/native/Instance.h"
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#include "dawn/platform/DawnPlatform.h"
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namespace dawn::native {
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BlobCache::BlobCache(dawn::platform::CachingInterface* cachingInterface)
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: mCache(cachingInterface) {}
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Blob BlobCache::Load(const CacheKey& key) {
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std::lock_guard<std::mutex> lock(mMutex);
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return LoadInternal(key);
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}
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void BlobCache::Store(const CacheKey& key, size_t valueSize, const void* value) {
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std::lock_guard<std::mutex> lock(mMutex);
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StoreInternal(key, valueSize, value);
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}
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void BlobCache::Store(const CacheKey& key, const Blob& value) {
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Store(key, value.Size(), value.Data());
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}
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Blob BlobCache::LoadInternal(const CacheKey& key) {
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ASSERT(ValidateCacheKey(key));
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if (mCache == nullptr) {
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return Blob();
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}
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const size_t expectedSize = mCache->LoadData(key.data(), key.size(), nullptr, 0);
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if (expectedSize > 0) {
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// Need to put this inside to trigger copy elision.
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Blob result = CreateBlob(expectedSize);
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const size_t actualSize =
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mCache->LoadData(key.data(), key.size(), result.Data(), expectedSize);
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ASSERT(expectedSize == actualSize);
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return result;
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}
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return Blob();
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}
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void BlobCache::StoreInternal(const CacheKey& key, size_t valueSize, const void* value) {
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ASSERT(ValidateCacheKey(key));
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ASSERT(value != nullptr);
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ASSERT(valueSize > 0);
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if (mCache == nullptr) {
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return;
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}
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mCache->StoreData(key.data(), key.size(), value, valueSize);
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}
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bool BlobCache::ValidateCacheKey(const CacheKey& key) {
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return std::search(key.begin(), key.end(), kDawnVersion.begin(), kDawnVersion.end()) !=
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key.end();
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}
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} // namespace dawn::native
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