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/* -*- 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_IPCBlobInputStreamParent_h
#define mozilla_dom_IPCBlobInputStreamParent_h
#include "mozilla/dom/PIPCBlobInputStreamParent.h"
class nsIInputStream;
namespace mozilla {
namespace dom {
class NS_NO_VTABLE IPCBlobInputStreamParentCallback {
public:
virtual void ActorDestroyed(const nsID& aID) = 0;
NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING
protected:
virtual ~IPCBlobInputStreamParentCallback() = default;
};
class IPCBlobInputStreamParent final : public PIPCBlobInputStreamParent {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(IPCBlobInputStreamParent, final)
// The size of the inputStream must be passed as argument in order to avoid
// the use of nsIInputStream::Available() which could open a fileDescriptor in
// case the stream is a nsFileStream.
template <typename M>
static already_AddRefed<IPCBlobInputStreamParent> Create(
nsIInputStream* aInputStream, uint64_t aSize, uint64_t aChildID,
nsresult* aRv, M* aManager);
static already_AddRefed<IPCBlobInputStreamParent> Create(
const nsID& aID, uint64_t aSize,
mozilla::ipc::PBackgroundParent* aManager);
void ActorDestroy(IProtocol::ActorDestroyReason aReason) override;
const nsID& ID() const { return mID; }
uint64_t Size() const { return mSize; }
void SetCallback(IPCBlobInputStreamParentCallback* aCallback);
mozilla::ipc::IPCResult RecvStreamNeeded();
mozilla::ipc::IPCResult RecvLengthNeeded();
mozilla::ipc::IPCResult RecvClose();
mozilla::ipc::IPCResult Recv__delete__() override;
bool HasValidStream() const;
private:
IPCBlobInputStreamParent(const nsID& aID, uint64_t aSize,
ContentParent* aManager);
IPCBlobInputStreamParent(const nsID& aID, uint64_t aSize,
mozilla::ipc::PBackgroundParent* aManager);
~IPCBlobInputStreamParent() = default;
const nsID mID;
const uint64_t mSize;
// Only 1 of these 2 is set. Raw pointer because these 2 managers are keeping
// the parent actor alive. The pointers will be nullified in ActorDestroyed.
ContentParent* mContentManager;
mozilla::ipc::PBackgroundParent* mPBackgroundManager;
RefPtr<IPCBlobInputStreamParentCallback> mCallback;
bool mMigrating;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_IPCBlobInputStreamParent_h
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