diff --git a/cmds/installd/CacheItem.h b/cmds/installd/CacheItem.h
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+++ b/cmds/installd/CacheItem.h
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+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * 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 ANDROID_INSTALLD_CACHE_ITEM_H
+#define ANDROID_INSTALLD_CACHE_ITEM_H
+
+#include <memory>
+#include <string>
+
+#include <fts.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <android-base/macros.h>
+
+namespace android {
+namespace installd {
+
+/**
+ * Single cache item that can be purged to free up space. This may be an
+ * isolated file, or an entire directory tree that should be atomically
+ * deleted.
+ */
+class CacheItem {
+public:
+    CacheItem(const std::shared_ptr<CacheItem>& parent, FTSENT* p);
+    ~CacheItem();
+
+    std::string toString();
+    std::string buildPath();
+
+    int purge();
+
+    short level;
+    bool directory;
+    int64_t size;
+    time_t modified;
+
+private:
+    std::shared_ptr<CacheItem> mParent;
+    std::string mName;
+
+    DISALLOW_COPY_AND_ASSIGN(CacheItem);
+};
+
+}  // namespace installd
+}  // namespace android
+
+#endif  // ANDROID_INSTALLD_CACHE_ITEM_H