import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/cache/CacheStorageChild.h

@@ -0,0 +1,81 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_cache_CacheStorageChild_h
+#define mozilla_dom_cache_CacheStorageChild_h
+
+#include "mozilla/dom/cache/ActorChild.h"
+#include "mozilla/dom/cache/Types.h"
+#include "mozilla/dom/cache/PCacheStorageChild.h"
+
+class nsIGlobalObject;
+
+namespace mozilla {
+namespace dom {
+
+class Promise;
+
+namespace cache {
+
+class CacheOpArgs;
+class CacheStorage;
+class CacheWorkerHolder;
+class PCacheChild;
+
+class CacheStorageChild final : public PCacheStorageChild
+                              , public ActorChild
+{
+public:
+  CacheStorageChild(CacheStorage* aListener, CacheWorkerHolder* aWorkerHolder);
+  ~CacheStorageChild();
+
+  // Must be called by the associated CacheStorage listener in its
+  // DestroyInternal() method.  Also, CacheStorage must call
+  // SendDestroyFromListener() on the actor in its destructor to trigger
+  // ActorDestroy() if it has not been called yet.
+  void ClearListener();
+
+  void
+  ExecuteOp(nsIGlobalObject* aGlobal, Promise* aPromise,
+            nsISupports* aParent, const CacheOpArgs& aArgs);
+
+  // Our parent Listener object has gone out of scope and is being destroyed.
+  void StartDestroyFromListener();
+
+private:
+  // ActorChild methods
+
+  // CacheWorkerHolder is trying to destroy due to worker shutdown.
+  virtual void StartDestroy() override;
+
+  // PCacheStorageChild methods
+  virtual void ActorDestroy(ActorDestroyReason aReason) override;
+
+  virtual PCacheOpChild*
+  AllocPCacheOpChild(const CacheOpArgs& aOpArgs) override;
+
+  virtual bool
+  DeallocPCacheOpChild(PCacheOpChild* aActor) override;
+
+  // utility methods
+  void
+  NoteDeletedActor();
+
+  // Use a weak ref so actor does not hold DOM object alive past content use.
+  // The CacheStorage object must call ClearListener() to null this before its
+  // destroyed.
+  CacheStorage* MOZ_NON_OWNING_REF mListener;
+  uint32_t mNumChildActors;
+  bool mDelayedDestroy;
+
+  NS_DECL_OWNINGTHREAD
+};
+
+} // namespace cache
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_cache_CacheStorageChild_h