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https://github.com/Feodor2/Mypal68.git
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85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/* 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_IPCBlobInputStreamParent_h
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#define mozilla_dom_IPCBlobInputStreamParent_h
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#include "mozilla/dom/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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public:
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virtual void 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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class IPCBlobInputStreamParent final : public PIPCBlobInputStreamParent {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(IPCBlobInputStreamParent, final)
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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 already_AddRefed<IPCBlobInputStreamParent> Create(
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nsIInputStream* aInputStream, uint64_t aSize, uint64_t aChildID,
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nsresult* aRv, M* aManager);
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static already_AddRefed<IPCBlobInputStreamParent> Create(
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const nsID& aID, uint64_t aSize,
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mozilla::ipc::PBackgroundParent* aManager);
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void ActorDestroy(IProtocol::ActorDestroyReason aReason) override;
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const nsID& ID() const { return mID; }
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uint64_t Size() const { return mSize; }
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void SetCallback(IPCBlobInputStreamParentCallback* aCallback);
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mozilla::ipc::IPCResult RecvStreamNeeded();
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mozilla::ipc::IPCResult RecvLengthNeeded();
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mozilla::ipc::IPCResult RecvClose();
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mozilla::ipc::IPCResult Recv__delete__() override;
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bool HasValidStream() const;
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private:
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IPCBlobInputStreamParent(const nsID& aID, uint64_t aSize,
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ContentParent* aManager);
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IPCBlobInputStreamParent(const nsID& aID, uint64_t aSize,
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mozilla::ipc::PBackgroundParent* aManager);
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~IPCBlobInputStreamParent() = default;
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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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ContentParent* 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_IPCBlobInputStreamParent_h
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