зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
2.5 KiB
C++
100 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ipc_IPCBlobInputStreamParent_h
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#define mozilla_dom_ipc_IPCBlobInputStreamParent_h
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#include "mozilla/ipc/PIPCBlobInputStreamParent.h"
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class nsIInputStream;
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namespace mozilla {
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namespace dom {
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class NS_NO_VTABLE IPCBlobInputStreamParentCallback
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{
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public:
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virtual void
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ActorDestroyed(const nsID& aID) = 0;
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NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING
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protected:
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virtual ~IPCBlobInputStreamParentCallback()
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{ }
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};
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class IPCBlobInputStreamParent final
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: public mozilla::ipc::PIPCBlobInputStreamParent
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{
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public:
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// The size of the inputStream must be passed as argument in order to avoid
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// the use of nsIInputStream::Available() which could open a fileDescriptor in
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// case the stream is a nsFileStream.
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template<typename M>
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static IPCBlobInputStreamParent*
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Create(nsIInputStream* aInputStream, uint64_t aSize,
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uint64_t aChildID, nsresult* aRv, M* aManager);
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static IPCBlobInputStreamParent*
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Create(const nsID& aID, uint64_t aSize,
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mozilla::ipc::PBackgroundParent* aManager);
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void
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ActorDestroy(IProtocol::ActorDestroyReason aReason) override;
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const nsID&
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ID() const
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{
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return mID;
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}
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uint64_t
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Size() const
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{
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return mSize;
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}
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void
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SetCallback(IPCBlobInputStreamParentCallback* aCallback);
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mozilla::ipc::IPCResult
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RecvStreamNeeded() override;
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mozilla::ipc::IPCResult
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RecvClose() override;
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mozilla::ipc::IPCResult
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Recv__delete__() override;
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bool
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HasValidStream() const;
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private:
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IPCBlobInputStreamParent(const nsID& aID, uint64_t aSize,
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nsIContentParent* aManager);
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IPCBlobInputStreamParent(const nsID& aID, uint64_t aSize,
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mozilla::ipc::PBackgroundParent* aManager);
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const nsID mID;
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const uint64_t mSize;
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// Only 1 of these 2 is set. Raw pointer because these 2 managers are keeping
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// the parent actor alive. The pointers will be nullified in ActorDestroyed.
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nsIContentParent* mContentManager;
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mozilla::ipc::PBackgroundParent* mPBackgroundManager;
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RefPtr<IPCBlobInputStreamParentCallback> mCallback;
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bool mMigrating;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_ipc_IPCBlobInputStreamParent_h
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