зеркало из https://github.com/mozilla/pjs.git
712 строки
39 KiB
C++
712 строки
39 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsCycleCollectionParticipant_h__
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#define nsCycleCollectionParticipant_h__
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#include "nsISupports.h"
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// NOTE: If you use header files to define DEBUG_CC, you must do so here
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// *and* in nsCycleCollector.h
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//#define DEBUG_CC
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#define NS_CYCLECOLLECTIONPARTICIPANT_IID \
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{ \
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0x9674489b, \
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0x1f6f, \
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0x4550, \
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{ 0xa7, 0x30, 0xcc, 0xae, 0xdd, 0x10, 0x4c, 0xf9 } \
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}
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/**
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* Special IID to get at the base nsISupports for a class. Usually this is the
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* canonical nsISupports pointer, but in the case of tearoffs for example it is
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* the base nsISupports pointer of the tearoff. This allow the cycle collector
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* to have separate nsCycleCollectionParticipant's for tearoffs or aggregated
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* classes.
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*/
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#define NS_CYCLECOLLECTIONISUPPORTS_IID \
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{ \
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0xc61eac14, \
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0x5f7a, \
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0x4481, \
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{ 0x96, 0x5e, 0x7e, 0xaa, 0x6e, 0xff, 0xa8, 0x5f } \
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}
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/**
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* Just holds the IID so NS_GET_IID works.
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*/
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class nsCycleCollectionISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONISUPPORTS_IID)
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionISupports,
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NS_CYCLECOLLECTIONISUPPORTS_IID)
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class nsCycleCollectionParticipant;
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enum CCNodeType { RefCounted, GCMarked, GCUnmarked };
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class NS_NO_VTABLE nsCycleCollectionTraversalCallback
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{
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public:
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// If type is RefCounted you must call DescribeNode() with an accurate
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// refcount, otherwise cycle collection will fail, and probably crash.
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// If type is not refcounted then the refcount will be ignored.
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// If the callback cares about objsz or objname, it should
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// put WANT_DEBUG_INFO in mFlags.
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NS_IMETHOD_(void) DescribeNode(CCNodeType type,
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nsrefcnt refcount,
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size_t objsz,
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const char *objname) = 0;
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NS_IMETHOD_(void) NoteXPCOMRoot(nsISupports *root) = 0;
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NS_IMETHOD_(void) NoteRoot(PRUint32 langID, void *root,
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nsCycleCollectionParticipant* helper) = 0;
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NS_IMETHOD_(void) NoteScriptChild(PRUint32 langID, void *child) = 0;
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NS_IMETHOD_(void) NoteXPCOMChild(nsISupports *child) = 0;
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NS_IMETHOD_(void) NoteNativeChild(void *child,
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nsCycleCollectionParticipant *helper) = 0;
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// Give a name to the edge associated with the next call to
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// NoteScriptChild, NoteXPCOMChild, or NoteNativeChild.
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// Callbacks who care about this should set WANT_DEBUG_INFO in the
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// flags.
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NS_IMETHOD_(void) NoteNextEdgeName(const char* name) = 0;
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enum {
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// Values for flags:
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// Caller should pass useful objsz and objname to DescribeNode
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// and should call NoteNextEdgeName.
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WANT_DEBUG_INFO = (1<<0),
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// Caller should not skip objects that we know will be
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// uncollectable.
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WANT_ALL_TRACES = (1<<1)
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};
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PRUint32 Flags() const { return mFlags; }
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PRBool WantDebugInfo() const { return (mFlags & WANT_DEBUG_INFO) != 0; }
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PRBool WantAllTraces() const { return (mFlags & WANT_ALL_TRACES) != 0; }
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protected:
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nsCycleCollectionTraversalCallback() : mFlags(0) {}
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PRUint32 mFlags;
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};
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class NS_NO_VTABLE nsCycleCollectionParticipant
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONPARTICIPANT_IID)
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NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb) = 0;
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NS_IMETHOD RootAndUnlinkJSObjects(void *p) = 0;
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NS_IMETHOD Unlink(void *p) = 0;
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NS_IMETHOD Unroot(void *p) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionParticipant,
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NS_CYCLECOLLECTIONPARTICIPANT_IID)
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#undef IMETHOD_VISIBILITY
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#define IMETHOD_VISIBILITY NS_COM_GLUE
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typedef void
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(* TraceCallback)(PRUint32 langID, void *p, void *closure);
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class NS_NO_VTABLE nsScriptObjectTracer : public nsCycleCollectionParticipant
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{
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public:
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NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure) = 0;
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void NS_COM_GLUE TraverseScriptObjects(void *p,
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nsCycleCollectionTraversalCallback &cb);
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};
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class NS_COM_GLUE nsXPCOMCycleCollectionParticipant
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: public nsScriptObjectTracer
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{
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public:
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NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb);
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NS_IMETHOD RootAndUnlinkJSObjects(void *p);
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NS_IMETHOD Unlink(void *p);
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NS_IMETHOD Unroot(void *p);
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NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure);
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NS_IMETHOD_(void) UnmarkPurple(nsISupports *p);
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PRBool CheckForRightISupports(nsISupports *s);
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};
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#undef IMETHOD_VISIBILITY
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#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing a QI to nsXPCOMCycleCollectionParticipant
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///////////////////////////////////////////////////////////////////////////////
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#define NS_CYCLE_COLLECTION_INNERCLASS \
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cycleCollection
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#define NS_CYCLE_COLLECTION_CLASSNAME(_class) \
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_class::NS_CYCLE_COLLECTION_INNERCLASS
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#define NS_CYCLE_COLLECTION_INNERNAME \
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_cycleCollectorGlobal
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#define NS_CYCLE_COLLECTION_NAME(_class) \
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_class::NS_CYCLE_COLLECTION_INNERNAME
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#define NS_IMPL_QUERY_CYCLE_COLLECTION(_class) \
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if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \
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*aInstancePtr = & NS_CYCLE_COLLECTION_NAME(_class); \
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return NS_OK; \
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} else
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#define NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) \
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if ( aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ) \
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foundInterface = NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this); \
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else
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#define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \
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NS_IMPL_QUERY_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) \
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NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class)
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#define NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) \
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NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \
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NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class)
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#define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(_class) \
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NS_INTERFACE_MAP_BEGIN(_class) \
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NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(_class) \
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NS_INTERFACE_MAP_BEGIN(_class) \
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NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(_class) \
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if (rv == NS_OK) return rv; \
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nsISupports* foundInterface; \
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NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(_class) \
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NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr) \
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{ \
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NS_PRECONDITION(aInstancePtr, "null out param"); \
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\
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if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \
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*aInstancePtr = &NS_CYCLE_COLLECTION_NAME(_class); \
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return NS_OK; \
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} \
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nsresult rv;
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#define NS_CYCLE_COLLECTION_UPCAST(obj, clazz) \
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NS_CYCLE_COLLECTION_CLASSNAME(clazz)::Upcast(obj)
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing nsCycleCollectionParticipant::RootAndUnlinkJSObjects
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_ROOT_BEGIN(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \
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{ \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_ASSERTION(CheckForRightISupports(s), \
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"not the nsISupports pointer we expect"); \
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nsXPCOMCycleCollectionParticipant::RootAndUnlinkJSObjects(s); \
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_class *tmp = Downcast(s);
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#define NS_IMPL_CYCLE_COLLECTION_ROOT_BEGIN_NATIVE(_class, _root_function) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \
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{ \
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_class *tmp = static_cast<_class*>(p); \
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tmp->_root_function();
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#define NS_IMPL_CYCLE_COLLECTION_ROOT_END \
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return NS_OK; \
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing nsCycleCollectionParticipant::Unlink
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
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{ \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_ASSERTION(CheckForRightISupports(s), \
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"not the nsISupports pointer we expect"); \
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_class *tmp = Downcast(s);
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(_class, _base_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
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{ \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_ASSERTION(CheckForRightISupports(s), \
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"not the nsISupports pointer we expect"); \
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_class *tmp = static_cast<_class*>(Downcast(s)); \
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NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Unlink(s);
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_NATIVE(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
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{ \
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_class *tmp = static_cast<_class*>(p);
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_field) \
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tmp->_field = NULL;
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMARRAY(_field) \
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tmp->_field.Clear();
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(_field) \
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tmp->_field.Clear();
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
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return NS_OK; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
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{ \
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NS_ASSERTION(CheckForRightISupports(static_cast<nsISupports*>(p)), \
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"not the nsISupports pointer we expect"); \
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return NS_OK; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NATIVE_0(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
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{ \
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return NS_OK; \
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing nsCycleCollectionParticipant::Traverse
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) \
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cb.DescribeNode(RefCounted, _refcnt, sizeof(_class), #_class);
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_REFCNT(_class, _refcnt) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
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(void *p, \
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nsCycleCollectionTraversalCallback &cb) \
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{ \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_ASSERTION(CheckForRightISupports(s), \
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"not the nsISupports pointer we expect"); \
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_class *tmp = Downcast(s); \
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NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt)
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_REFCNT(_class, tmp->mRefCnt.get())
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// Base class' CC participant should return NS_SUCCESS_INTERRUPTED_TRAVERSE
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// from Traverse if it wants derived classes to not traverse anything from
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// their CC participant.
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#define NS_SUCCESS_INTERRUPTED_TRAVERSE \
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NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_XPCOM, 2)
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(_class, _base_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
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(void *p, \
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nsCycleCollectionTraversalCallback &cb) \
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{ \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_ASSERTION(CheckForRightISupports(s), \
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"not the nsISupports pointer we expect"); \
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_class *tmp = static_cast<_class*>(Downcast(s)); \
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if (NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Traverse(s, cb) == \
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NS_SUCCESS_INTERRUPTED_TRAVERSE) { \
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return NS_SUCCESS_INTERRUPTED_TRAVERSE; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_BEGIN(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
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(void *p, \
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nsCycleCollectionTraversalCallback &cb) \
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{ \
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_class *tmp = static_cast<_class*>(p); \
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NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, tmp->mRefCnt.get())
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#define NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(_cb, _name) \
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PR_BEGIN_MACRO \
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if (NS_UNLIKELY((_cb).WantDebugInfo())) { \
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(_cb).NoteNextEdgeName(_name); \
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} \
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PR_END_MACRO
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(_field) \
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PR_BEGIN_MACRO \
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \
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cb.NoteXPCOMChild(tmp->_field); \
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PR_END_MACRO;
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_field) \
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PR_BEGIN_MACRO \
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \
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cb.NoteXPCOMChild(tmp->_field.get()); \
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PR_END_MACRO;
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(_field, _base) \
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PR_BEGIN_MACRO \
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \
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cb.NoteXPCOMChild(NS_ISUPPORTS_CAST(_base*, tmp->_field)); \
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PR_END_MACRO;
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(_field) \
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{ \
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PRInt32 i; \
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for (i = 0; i < tmp->_field.Count(); ++i) { \
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field "[i]"); \
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cb.NoteXPCOMChild(tmp->_field[i]); \
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} \
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}
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(_ptr, _ptr_class, _name) \
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PR_BEGIN_MACRO \
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, _name); \
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cb.NoteNativeChild(_ptr, &NS_CYCLE_COLLECTION_NAME(_ptr_class)); \
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PR_END_MACRO;
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_MEMBER(_field, _field_class) \
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(tmp->_field, _field_class, \
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#_field)
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(_array, _element_class, \
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_name) \
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{ \
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PRUint32 i, length = (_array).Length(); \
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for (i = 0; i < length; ++i) \
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR((_array)[i], \
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_element_class, \
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_name "[i]"); \
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}
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY_MEMBER(_field, \
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|
_element_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(tmp->_field, _element_class, \
|
|
#_field)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
|
|
TraverseScriptObjects(tmp, cb);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
|
|
return NS_OK; \
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Helpers for implementing nsScriptObjectTracer::Trace
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \
|
|
void \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Trace(void *p, \
|
|
TraceCallback aCallback, \
|
|
void *aClosure) \
|
|
{ \
|
|
nsISupports *s = static_cast<nsISupports*>(p); \
|
|
NS_ASSERTION(CheckForRightISupports(s), \
|
|
"not the nsISupports pointer we expect"); \
|
|
_class *tmp = Downcast(s);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_NATIVE_BEGIN(_class) \
|
|
void \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Trace(void *p, \
|
|
TraceCallback aCallback, \
|
|
void *aClosure) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_CALLBACK(_langID, _object) \
|
|
if (_object) \
|
|
aCallback(_langID, _object, aClosure);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_MEMBER_CALLBACK(_langID, _field) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_CALLBACK(_langID, tmp->_field)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(_object) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_CALLBACK(nsIProgrammingLanguage::JAVASCRIPT, \
|
|
_object)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(_field) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(tmp->_field)
|
|
|
|
// NB: The (void)tmp; hack in the TRACE_END macro exists to support
|
|
// implementations that don't need to do anything in their Trace method.
|
|
// Without this hack, some compilers warn about the unused tmp local.
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_END \
|
|
(void)tmp; \
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Helpers for implementing a concrete nsCycleCollectionParticipant
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#define NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \
|
|
public: \
|
|
NS_IMETHOD Traverse(void *p, \
|
|
nsCycleCollectionTraversalCallback &cb); \
|
|
NS_IMETHOD_(void) UnmarkPurple(nsISupports *s) \
|
|
{ \
|
|
Downcast(s)->UnmarkPurple(); \
|
|
} \
|
|
static _class* Downcast(nsISupports* s) \
|
|
{ \
|
|
return static_cast<_class*>(static_cast<_base*>(s)); \
|
|
} \
|
|
static nsISupports* Upcast(_class *p) \
|
|
{ \
|
|
return NS_ISUPPORTS_CAST(_base*, p); \
|
|
}
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \
|
|
NS_IMETHOD Unlink(void *p);
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(_class, _base) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsXPCOMCycleCollectionParticipant \
|
|
{ \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(_class, _class)
|
|
|
|
// Cycle collector helper for classes that don't want to unlink anything.
|
|
// Note: if this is used a lot it might make sense to have a base class that
|
|
// doesn't do anything in RootAndUnlinkJSObjects/Unlink/Unroot.
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_NO_UNLINK(_class) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsXPCOMCycleCollectionParticipant \
|
|
{ \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _class) \
|
|
NS_IMETHOD RootAndUnlinkJSObjects(void *p) \
|
|
{ \
|
|
return NS_OK; \
|
|
} \
|
|
NS_IMETHOD Unlink(void *p) \
|
|
{ \
|
|
return NS_OK; \
|
|
} \
|
|
NS_IMETHOD Unroot(void *p) \
|
|
{ \
|
|
return NS_OK; \
|
|
} \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _base) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsXPCOMCycleCollectionParticipant \
|
|
{ \
|
|
NS_IMETHOD RootAndUnlinkJSObjects(void *p); \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \
|
|
NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure); \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(_class) \
|
|
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _class)
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, \
|
|
_base_class) \
|
|
public: \
|
|
NS_IMETHOD Traverse(void *p, \
|
|
nsCycleCollectionTraversalCallback &cb); \
|
|
static _class* Downcast(nsISupports* s) \
|
|
{ \
|
|
return static_cast<_class*>(static_cast<_base_class*>( \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Downcast(s))); \
|
|
}
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, _base_class) \
|
|
NS_IMETHOD Unlink(void *p);
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(_class, _base_class) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \
|
|
{ \
|
|
public: \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_NO_UNLINK(_class, \
|
|
_base_class) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \
|
|
{ \
|
|
public: \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, _base_class) \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
/**
|
|
* This implements a stub UnmarkPurple function for classes that want to be
|
|
* traversed but whose AddRef/Release functions don't add/remove them to/from
|
|
* the purple buffer. If you're just using NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
* then you don't need this.
|
|
*/
|
|
#define NS_DECL_CYCLE_COLLECTION_UNMARK_PURPLE_STUB(_class) \
|
|
NS_IMETHODIMP_(void) UnmarkPurple() \
|
|
{ \
|
|
} \
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class) NS_CYCLE_COLLECTION_NAME(_class);
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY \
|
|
public: \
|
|
NS_IMETHOD RootAndUnlinkJSObjects(void *n); \
|
|
NS_IMETHOD Unlink(void *n); \
|
|
NS_IMETHOD Unroot(void *n); \
|
|
NS_IMETHOD Traverse(void *n, \
|
|
nsCycleCollectionTraversalCallback &cb);
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(_class) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsCycleCollectionParticipant \
|
|
{ \
|
|
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(_class) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsScriptObjectTracer \
|
|
{ \
|
|
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY \
|
|
NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure); \
|
|
}; \
|
|
NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(_class, _root_function) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p); \
|
|
tmp->_root_function(); \
|
|
return NS_OK; \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(_class, _unroot_function) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unroot(void *p) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p); \
|
|
tmp->_unroot_function(); \
|
|
return NS_OK; \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_0(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_1(_class, _f) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_2(_class, _f1, _f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_3(_class, _f1, _f2, _f3) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_4(_class, _f1, _f2, _f3, _f4) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
#endif // nsCycleCollectionParticipant_h__
|