michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_RefCountType_h
michael@0: #define mozilla_RefCountType_h
michael@0: 
michael@0: #include <stdint.h>
michael@0: 
michael@0: /**
michael@0:  * MozRefCountType is Mozilla's reference count type.
michael@0:  *
michael@0:  * We use the same type to represent the refcount of RefCounted objects
michael@0:  * as well, in order to be able to use the leak detection facilities
michael@0:  * that are implemented by XPCOM.
michael@0:  *
michael@0:  * Note that this type is not in the mozilla namespace so that it is
michael@0:  * usable for both C and C++ code.
michael@0:  */
michael@0: typedef uintptr_t MozRefCountType;
michael@0: 
michael@0: /*
michael@0:  * This is the return type for AddRef() and Release() in nsISupports.
michael@0:  * IUnknown of COM returns an unsigned long from equivalent functions.
michael@0:  *
michael@0:  * The following ifdef exists to maintain binary compatibility with
michael@0:  * IUnknown, the base interface in Microsoft COM.
michael@0:  */
michael@0: #ifdef XP_WIN
michael@0: typedef unsigned long MozExternalRefCountType;
michael@0: #else
michael@0: typedef uint32_t MozExternalRefCountType;
michael@0: #endif
michael@0: 
michael@0: #endif