| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/storage/blobfs/cache_node.h" |
| |
| #include "src/lib/digest/digest.h" |
| #include "src/storage/blobfs/blob_cache.h" |
| |
| namespace blobfs { |
| |
| CacheNode::CacheNode(fs::PagedVfs* vfs, const digest::Digest& digest, |
| std::optional<CachePolicy> override_cache_policy) |
| : fs::PagedVnode(vfs), digest_(digest), overriden_cache_policy_(override_cache_policy) {} |
| |
| void CacheNode::RecycleNode() { |
| if (ShouldCache()) { |
| // Migrate from the open cache to the closed cache, keeping the Vnode alive. |
| // |
| // If the node has already been evicted, it is destroyed. |
| GetCache().Downgrade(this); |
| } else { |
| // Destroy blobs which don't want to be cached. |
| // |
| // If we're deleting this node, it must not exist in either hash. |
| GetCache().EvictUnsafe(this, true); |
| ZX_DEBUG_ASSERT(!InContainer()); |
| delete this; |
| } |
| } |
| |
| } // namespace blobfs |