dom/base/nsISizeOfEventTarget.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsISizeOfEventTarget_h___
   8 #define nsISizeOfEventTarget_h___
   9
  10 #include "mozilla/MemoryReporting.h"
  11 #include "nsISupports.h"
  12
  13 #define NS_ISIZEOFEVENTTARGET_IID                    \
  14   {                                                  \
  15     0xa1e08cb9, 0x5455, 0x4593, {                    \
  16       0xb4, 0x1f, 0x38, 0x7a, 0x85, 0x44, 0xd0, 0xb5 \
  17     }                                                \
  18   }
  19
  20 /**
  21  * This class is much the same as nsISizeOf, but is specifically for measuring
  22  * the contents of nsGlobalWindow::mEventTargetObjects.
  23  *
  24  * We don't use nsISizeOf because if we did, any object belonging to
  25  * mEventTargetObjects that implements nsISizeOf would be measured, which we
  26  * may not want (perhaps because the object is also measured elsewhere).
  27  */
  28 class nsISizeOfEventTarget : public nsISupports {
  29  public:
  30   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISIZEOFEVENTTARGET_IID)
  31
  32   /**
  33    * Measures the size of the things pointed to by the object, plus the object
  34    * itself.
  35    */
  36   virtual size_t SizeOfEventTargetIncludingThis(
  37       mozilla::MallocSizeOf aMallocSizeOf) const = 0;
  38 };
  39
  40 NS_DEFINE_STATIC_IID_ACCESSOR(nsISizeOfEventTarget, NS_ISIZEOFEVENTTARGET_IID)
  41
  42 #endif /* nsISizeOfEventTarget_h___ */