зеркало из https://github.com/mozilla/gecko-dev.git
106 строки
3.7 KiB
C++
106 строки
3.7 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_mscom_MainThreadHandoff_h
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#define mozilla_mscom_MainThreadHandoff_h
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#include <utility>
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#include "mozilla/Assertions.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/mscom/Interceptor.h"
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#include "mozilla/mscom/MainThreadInvoker.h"
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#include "mozilla/mscom/Utils.h"
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#include "nsTArray.h"
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namespace mozilla {
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namespace mscom {
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// {9a907000-7829-47f1-80eb-f67a26f47b34}
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DEFINE_GUID(IID_IMainThreadHandoff, 0x9a907000, 0x7829, 0x47f1, 0x80, 0xeb,
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0xf6, 0x7a, 0x26, 0xf4, 0x7b, 0x34);
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struct IMainThreadHandoff : public IInterceptorSink {
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virtual STDMETHODIMP GetHandlerProvider(IHandlerProvider** aProvider) = 0;
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};
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struct ArrayData;
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class MainThreadHandoff final : public IMainThreadHandoff,
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public ICallFrameWalker {
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public:
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static HRESULT Create(IHandlerProvider* aHandlerProvider,
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IInterceptorSink** aOutput);
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template <typename Interface>
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static HRESULT WrapInterface(STAUniquePtr<Interface> aTargetInterface,
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Interface** aOutInterface) {
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return WrapInterface<Interface>(std::move(aTargetInterface), nullptr,
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aOutInterface);
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}
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template <typename Interface>
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static HRESULT WrapInterface(STAUniquePtr<Interface> aTargetInterface,
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IHandlerProvider* aHandlerProvider,
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Interface** aOutInterface) {
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MOZ_ASSERT(!IsProxy(aTargetInterface.get()));
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RefPtr<IInterceptorSink> handoff;
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HRESULT hr =
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MainThreadHandoff::Create(aHandlerProvider, getter_AddRefs(handoff));
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if (FAILED(hr)) {
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return hr;
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}
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return CreateInterceptor(std::move(aTargetInterface), handoff,
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aOutInterface);
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}
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID riid, void** ppv) override;
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STDMETHODIMP_(ULONG) AddRef() override;
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STDMETHODIMP_(ULONG) Release() override;
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// ICallFrameEvents
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STDMETHODIMP OnCall(ICallFrame* aFrame) override;
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// IInterceptorSink
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STDMETHODIMP SetInterceptor(IWeakReference* aInterceptor) override;
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STDMETHODIMP GetHandler(NotNull<CLSID*> aHandlerClsid) override;
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STDMETHODIMP GetHandlerPayloadSize(NotNull<IInterceptor*> aInterceptor,
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NotNull<DWORD*> aOutPayloadSize) override;
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STDMETHODIMP WriteHandlerPayload(NotNull<IInterceptor*> aInterceptor,
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NotNull<IStream*> aStream) override;
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STDMETHODIMP_(REFIID) MarshalAs(REFIID aIid) override;
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STDMETHODIMP DisconnectHandlerRemotes() override;
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STDMETHODIMP IsInterfaceMaybeSupported(REFIID aIid) override;
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// IMainThreadHandoff
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STDMETHODIMP GetHandlerProvider(IHandlerProvider** aProvider) override {
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RefPtr<IHandlerProvider> provider = mHandlerProvider;
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provider.forget(aProvider);
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return mHandlerProvider ? S_OK : S_FALSE;
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}
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// ICallFrameWalker
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STDMETHODIMP OnWalkInterface(REFIID aIid, PVOID* aInterface, BOOL aIsInParam,
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BOOL aIsOutParam) override;
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private:
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explicit MainThreadHandoff(IHandlerProvider* aHandlerProvider);
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~MainThreadHandoff();
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HRESULT FixArrayElements(ICallFrame* aFrame, const ArrayData& aArrayData);
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HRESULT FixIServiceProvider(ICallFrame* aFrame);
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private:
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ULONG mRefCnt;
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RefPtr<IWeakReference> mInterceptor;
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RefPtr<IHandlerProvider> mHandlerProvider;
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};
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} // namespace mscom
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} // namespace mozilla
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#endif // mozilla_mscom_MainThreadHandoff_h
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