blob: 5687993c38e14e0fd8991bb9287002031fdb82be [file] [log] [blame]
// 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"
using digest::Digest;
namespace blobfs {
void CacheNode::fbl_recycle() {
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.
Cache().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.
Cache().EvictUnsafe(this, true);
ZX_DEBUG_ASSERT(!InContainer());
delete this;
}
}
CacheNode::CacheNode(const Digest& digest, std::optional<CachePolicy> override_cache_policy)
: overriden_cache_policy_(override_cache_policy) {
digest.CopyTo(digest_, sizeof(digest_));
}
CacheNode::~CacheNode() = default;
} // namespace blobfs