mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-14 13:55:43 +00:00
f550f56c7e
MozReview-Commit-ID: KmMTWR9FQcx --HG-- extra : rebase_source : afb5ebce0c9478b4fba26610c2ee4292ee4afcb2
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/* -*- 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_mscom_PassthruProxy_h
|
|
#define mozilla_mscom_PassthruProxy_h
|
|
|
|
#include "mozilla/Atomics.h"
|
|
#include "mozilla/mscom/Ptr.h"
|
|
#include "mozilla/NotNull.h"
|
|
|
|
#include <objbase.h>
|
|
|
|
namespace mozilla {
|
|
namespace mscom {
|
|
namespace detail {
|
|
|
|
template <typename Iface>
|
|
struct VTableSizer;
|
|
|
|
template <>
|
|
struct VTableSizer<IDispatch>
|
|
{
|
|
enum {
|
|
Size = 7
|
|
};
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
class PassthruProxy final : public IMarshal
|
|
, public IClientSecurity
|
|
{
|
|
public:
|
|
template <typename Iface>
|
|
static RefPtr<Iface> Wrap(NotNull<Iface*> aIn)
|
|
{
|
|
static_assert(detail::VTableSizer<Iface>::Size >= 3, "VTable too small");
|
|
|
|
RefPtr<PassthruProxy> passthru(new PassthruProxy(__uuidof(Iface),
|
|
detail::VTableSizer<Iface>::Size,
|
|
aIn));
|
|
|
|
RefPtr<Iface> result;
|
|
if (FAILED(passthru->QueryProxyInterface(getter_AddRefs(result)))) {
|
|
return nullptr;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static HRESULT Register();
|
|
|
|
PassthruProxy();
|
|
|
|
// IUnknown
|
|
STDMETHODIMP QueryInterface(REFIID riid, void** ppv) override;
|
|
STDMETHODIMP_(ULONG) AddRef() override;
|
|
STDMETHODIMP_(ULONG) Release() override;
|
|
|
|
// IMarshal
|
|
STDMETHODIMP GetUnmarshalClass(REFIID riid, void* pv, DWORD dwDestContext,
|
|
void* pvDestContext, DWORD mshlflags,
|
|
CLSID* pCid) override;
|
|
STDMETHODIMP GetMarshalSizeMax(REFIID riid, void* pv, DWORD dwDestContext,
|
|
void* pvDestContext, DWORD mshlflags,
|
|
DWORD* pSize) override;
|
|
STDMETHODIMP MarshalInterface(IStream* pStm, REFIID riid, void* pv,
|
|
DWORD dwDestContext, void* pvDestContext,
|
|
DWORD mshlflags) override;
|
|
STDMETHODIMP UnmarshalInterface(IStream* pStm, REFIID riid,
|
|
void** ppv) override;
|
|
STDMETHODIMP ReleaseMarshalData(IStream* pStm) override;
|
|
STDMETHODIMP DisconnectObject(DWORD dwReserved) override;
|
|
|
|
// IClientSecurity - we don't actually implement this interface, but its
|
|
// presence signals to mscom::IsProxy() that we are a proxy.
|
|
STDMETHODIMP QueryBlanket(IUnknown* aProxy, DWORD* aAuthnSvc,
|
|
DWORD* aAuthzSvc, OLECHAR** aSrvPrincName,
|
|
DWORD* aAuthnLevel, DWORD* aImpLevel,
|
|
void** aAuthInfo, DWORD* aCapabilities) override
|
|
{ return E_NOTIMPL; }
|
|
|
|
STDMETHODIMP SetBlanket(IUnknown* aProxy, DWORD aAuthnSvc, DWORD aAuthzSvc,
|
|
OLECHAR* aSrvPrincName, DWORD aAuthnLevel,
|
|
DWORD aImpLevel, void* aAuthInfo, DWORD aCapabilities) override
|
|
{ return E_NOTIMPL; }
|
|
|
|
STDMETHODIMP CopyProxy(IUnknown* aProxy, IUnknown** aOutCopy) override
|
|
{ return E_NOTIMPL; }
|
|
|
|
private:
|
|
PassthruProxy(REFIID aIidToWrap, uint32_t aVTableSize,
|
|
NotNull<IUnknown*> aObjToWrap);
|
|
~PassthruProxy();
|
|
|
|
bool IsInitialMarshal() const { return !mStream; }
|
|
HRESULT QueryProxyInterface(void** aOutInterface);
|
|
|
|
Atomic<ULONG> mRefCnt;
|
|
IID mWrappedIid;
|
|
PreservedStreamPtr mPreservedStream;
|
|
RefPtr<IStream> mStream;
|
|
uint32_t mVTableSize;
|
|
IUnknown* mVTable;
|
|
bool mForgetPreservedStream;
|
|
};
|
|
|
|
} // namespace mscom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_mscom_PassthruProxy_h
|