xpcom/reflect/xptcall/xptcall.cpp

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 /* entry point wrappers. */
   7
   8 #include "xptcprivate.h"
   9
  10 using namespace mozilla;
  11
  12 NS_IMETHODIMP
  13 nsXPTCStubBase::QueryInterface(REFNSIID aIID, void** aInstancePtr) {
  14   if (aIID.Equals(mEntry->IID())) {
  15     NS_ADDREF_THIS();
  16     *aInstancePtr = static_cast<nsISupports*>(this);
  17     return NS_OK;
  18   }
  19
  20   return mOuter->QueryInterface(aIID, aInstancePtr);
  21 }
  22
  23 NS_IMETHODIMP_(MozExternalRefCountType)
  24 nsXPTCStubBase::AddRef() { return mOuter->AddRef(); }
  25
  26 NS_IMETHODIMP_(MozExternalRefCountType)
  27 nsXPTCStubBase::Release() { return mOuter->Release(); }
  28
  29 EXPORT_XPCOM_API(nsresult)
  30 NS_GetXPTCallStub(REFNSIID aIID, nsIXPTCProxy* aOuter,
  31                   nsISomeInterface** aResult) {
  32   if (NS_WARN_IF(!aOuter) || NS_WARN_IF(!aResult)) return NS_ERROR_INVALID_ARG;
  33
  34   const nsXPTInterfaceInfo* iie = nsXPTInterfaceInfo::ByIID(aIID);
  35   if (!iie || iie->IsBuiltinClass()) {
  36     return NS_ERROR_FAILURE;
  37   }
  38
  39   *aResult = new nsXPTCStubBase(aOuter, iie);
  40   return NS_OK;
  41 }
  42
  43 EXPORT_XPCOM_API(void)
  44 NS_DestroyXPTCallStub(nsISomeInterface* aStub) {
  45   nsXPTCStubBase* stub = static_cast<nsXPTCStubBase*>(aStub);
  46   delete (stub);
  47 }
  48
  49 EXPORT_XPCOM_API(size_t)
  50 NS_SizeOfIncludingThisXPTCallStub(const nsISomeInterface* aStub,
  51                                   mozilla::MallocSizeOf aMallocSizeOf) {
  52   // We could cast aStub to nsXPTCStubBase, but that class doesn't seem to own
  53   // anything, so just measure the size of the object itself.
  54   return aMallocSizeOf(aStub);
  55 }