gecko/xpcom/reflect/xptcall/xptcall.cpp

87 lines
2.4 KiB
C++

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
/* entry point wrappers. */
#include "xptcprivate.h"
#include "xptiprivate.h"
#include "mozilla/XPTInterfaceInfoManager.h"
#include "nsPrintfCString.h"
using namespace mozilla;
NS_IMETHODIMP
nsXPTCStubBase::QueryInterface(REFNSIID aIID,
void **aInstancePtr)
{
if (aIID.Equals(mEntry->IID())) {
NS_ADDREF_THIS();
*aInstancePtr = static_cast<nsISupports*>(this);
return NS_OK;
}
return mOuter->QueryInterface(aIID, aInstancePtr);
}
NS_IMETHODIMP_(MozExternalRefCountType)
nsXPTCStubBase::AddRef()
{
return mOuter->AddRef();
}
NS_IMETHODIMP_(MozExternalRefCountType)
nsXPTCStubBase::Release()
{
return mOuter->Release();
}
EXPORT_XPCOM_API(nsresult)
NS_GetXPTCallStub(REFNSIID aIID, nsIXPTCProxy* aOuter,
nsISomeInterface* *aResult)
{
if (NS_WARN_IF(!aOuter) || NS_WARN_IF(!aResult))
return NS_ERROR_INVALID_ARG;
XPTInterfaceInfoManager *iim =
XPTInterfaceInfoManager::GetSingleton();
if (NS_WARN_IF(!iim))
return NS_ERROR_NOT_INITIALIZED;
xptiInterfaceEntry *iie = iim->GetInterfaceEntryForIID(&aIID);
if (!iie || !iie->EnsureResolved() || iie->GetBuiltinClassFlag())
return NS_ERROR_FAILURE;
if (iie->GetHasNotXPCOMFlag()) {
#ifdef DEBUG
nsPrintfCString msg("XPTCall will not implement interface %s because of [notxpcom] members.", iie->GetTheName());
NS_WARNING(msg.get());
#endif
return NS_ERROR_FAILURE;
}
nsXPTCStubBase* newbase = new nsXPTCStubBase(aOuter, iie);
if (!newbase)
return NS_ERROR_OUT_OF_MEMORY;
*aResult = newbase;
return NS_OK;
}
EXPORT_XPCOM_API(void)
NS_DestroyXPTCallStub(nsISomeInterface* aStub)
{
nsXPTCStubBase* stub = static_cast<nsXPTCStubBase*>(aStub);
delete(stub);
}
EXPORT_XPCOM_API(size_t)
NS_SizeOfIncludingThisXPTCallStub(const nsISomeInterface* aStub,
mozilla::MallocSizeOf aMallocSizeOf)
{
// We could cast aStub to nsXPTCStubBase, but that class doesn't seem to own anything,
// so just measure the size of the object itself.
return aMallocSizeOf(aStub);
}