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Diffstat (limited to 'dom/cache/CacheStorageChild.h')
-rw-r--r-- | dom/cache/CacheStorageChild.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/dom/cache/CacheStorageChild.h b/dom/cache/CacheStorageChild.h new file mode 100644 index 0000000000..9524aaaa0a --- /dev/null +++ b/dom/cache/CacheStorageChild.h @@ -0,0 +1,78 @@ +/* -*- 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 CacheWorkerRef; +class PCacheChild; + +class CacheStorageChild final : public PCacheStorageChild, public ActorChild { + friend class PCacheStorageChild; + + public: + CacheStorageChild(CacheStorage* aListener, + SafeRefPtr<CacheWorkerRef> aWorkerRef); + ~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 + + // CacheWorkerRef is trying to destroy due to worker shutdown. + virtual void StartDestroy() override; + + // PCacheStorageChild methods + virtual void ActorDestroy(ActorDestroyReason aReason) override; + + PCacheOpChild* AllocPCacheOpChild(const CacheOpArgs& aOpArgs); + + bool DeallocPCacheOpChild(PCacheOpChild* aActor); + + // 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 |