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   {0xa1e08cb9, 0x5455, 0x4593, \
  15     { 0xb4, 0x1f, 0x38, 0x7a, 0x85, 0x44, 0xd0, 0xb5 }}
  16
  17 /**
  18  * This class is much the same as nsISizeOf, but is specifically for measuring
  19  * the contents of nsGlobalWindow::mEventTargetObjects.
  20  *
  21  * We don't use nsISizeOf because if we did, any object belonging to
  22  * mEventTargetObjects that implements nsISizeOf would be measured, which we
  23  * may not want (perhaps because the object is also measured elsewhere).
  24  */
  25 class nsISizeOfEventTarget : public nsISupports
  26 {
  27 public:
  28   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISIZEOFEVENTTARGET_IID)
  29
  30   /**
  31    * Measures the size of the things pointed to by the object, plus the object
  32    * itself.
  33    */
  34   virtual size_t
  35     SizeOfEventTargetIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const = 0;
  36 };
  37
  38 NS_DEFINE_STATIC_IID_ACCESSOR(nsISizeOfEventTarget, NS_ISIZEOFEVENTTARGET_IID)
  39
  40 #endif /* nsISizeOfEventTarget_h___ */