mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 14:45:29 +00:00
705 lines
38 KiB
C++
705 lines
38 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* The Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2006
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsCycleCollectionParticipant_h__
|
|
#define nsCycleCollectionParticipant_h__
|
|
|
|
#include "nsISupports.h"
|
|
|
|
// NOTE: If you use header files to define DEBUG_CC, you must do so here
|
|
// *and* in nsCycleCollector.h
|
|
//#define DEBUG_CC
|
|
|
|
#ifdef DEBUG_CC
|
|
#define IF_DEBUG_CC_PARAM(_p) , _p
|
|
#define IF_DEBUG_CC_ONLY_PARAM(_p) _p
|
|
#else
|
|
#define IF_DEBUG_CC_PARAM(_p)
|
|
#define IF_DEBUG_CC_ONLY_PARAM(_p)
|
|
#endif
|
|
|
|
#define NS_CYCLECOLLECTIONPARTICIPANT_IID \
|
|
{ \
|
|
0x9674489b, \
|
|
0x1f6f, \
|
|
0x4550, \
|
|
{ 0xa7, 0x30, 0xcc, 0xae, 0xdd, 0x10, 0x4c, 0xf9 } \
|
|
}
|
|
|
|
/**
|
|
* Special IID to get at the base nsISupports for a class. Usually this is the
|
|
* canonical nsISupports pointer, but in the case of tearoffs for example it is
|
|
* the base nsISupports pointer of the tearoff. This allow the cycle collector
|
|
* to have separate nsCycleCollectionParticipant's for tearoffs or aggregated
|
|
* classes.
|
|
*/
|
|
#define NS_CYCLECOLLECTIONISUPPORTS_IID \
|
|
{ \
|
|
0xc61eac14, \
|
|
0x5f7a, \
|
|
0x4481, \
|
|
{ 0x96, 0x5e, 0x7e, 0xaa, 0x6e, 0xff, 0xa8, 0x5f } \
|
|
}
|
|
|
|
/**
|
|
* Just holds the IID so NS_GET_IID works.
|
|
*/
|
|
class nsCycleCollectionISupports
|
|
{
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONISUPPORTS_IID)
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionISupports,
|
|
NS_CYCLECOLLECTIONISUPPORTS_IID)
|
|
|
|
class nsCycleCollectionParticipant;
|
|
|
|
enum CCNodeType { RefCounted, GCMarked, GCUnmarked };
|
|
|
|
class NS_NO_VTABLE nsCycleCollectionTraversalCallback
|
|
{
|
|
public:
|
|
// If type is RefCounted you must call DescribeNode() with an accurate
|
|
// refcount, otherwise cycle collection will fail, and probably crash.
|
|
// If type is not refcounted then the refcount will be ignored.
|
|
#ifdef DEBUG_CC
|
|
NS_IMETHOD_(void) DescribeNode(CCNodeType type,
|
|
nsrefcnt refcount,
|
|
size_t objsz,
|
|
const char *objname) = 0;
|
|
#else
|
|
NS_IMETHOD_(void) DescribeNode(CCNodeType type,
|
|
nsrefcnt refcount) = 0;
|
|
#endif
|
|
NS_IMETHOD_(void) NoteXPCOMRoot(nsISupports *root) = 0;
|
|
NS_IMETHOD_(void) NoteRoot(PRUint32 langID, void *root,
|
|
nsCycleCollectionParticipant* helper) = 0;
|
|
NS_IMETHOD_(void) NoteScriptChild(PRUint32 langID, void *child) = 0;
|
|
NS_IMETHOD_(void) NoteXPCOMChild(nsISupports *child) = 0;
|
|
NS_IMETHOD_(void) NoteNativeChild(void *child,
|
|
nsCycleCollectionParticipant *helper) = 0;
|
|
#ifdef DEBUG_CC
|
|
// Give a name to the edge associated with the next call to
|
|
// NoteScriptChild, NoteXPCOMChild, or NoteNativeChild.
|
|
NS_IMETHOD_(void) NoteNextEdgeName(const char* name) = 0;
|
|
#endif
|
|
};
|
|
|
|
class NS_NO_VTABLE nsCycleCollectionParticipant
|
|
{
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONPARTICIPANT_IID)
|
|
|
|
NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb) = 0;
|
|
|
|
NS_IMETHOD RootAndUnlinkJSObjects(void *p) = 0;
|
|
NS_IMETHOD Unlink(void *p) = 0;
|
|
NS_IMETHOD Unroot(void *p) = 0;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionParticipant,
|
|
NS_CYCLECOLLECTIONPARTICIPANT_IID)
|
|
|
|
#undef IMETHOD_VISIBILITY
|
|
#define IMETHOD_VISIBILITY NS_COM_GLUE
|
|
|
|
typedef void
|
|
(* TraceCallback)(PRUint32 langID, void *p, void *closure);
|
|
|
|
class NS_NO_VTABLE nsScriptObjectTracer : public nsCycleCollectionParticipant
|
|
{
|
|
public:
|
|
NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure) = 0;
|
|
void NS_COM_GLUE TraverseScriptObjects(void *p,
|
|
nsCycleCollectionTraversalCallback &cb);
|
|
};
|
|
|
|
class NS_COM_GLUE nsXPCOMCycleCollectionParticipant
|
|
: public nsScriptObjectTracer
|
|
{
|
|
public:
|
|
NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb);
|
|
|
|
NS_IMETHOD RootAndUnlinkJSObjects(void *p);
|
|
NS_IMETHOD Unlink(void *p);
|
|
NS_IMETHOD Unroot(void *p);
|
|
|
|
NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure);
|
|
|
|
NS_IMETHOD_(void) UnmarkPurple(nsISupports *p);
|
|
|
|
PRBool CheckForRightISupports(nsISupports *s);
|
|
};
|
|
|
|
#undef IMETHOD_VISIBILITY
|
|
#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Helpers for implementing a QI to nsXPCOMCycleCollectionParticipant
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#define NS_CYCLE_COLLECTION_INNERCLASS \
|
|
cycleCollection
|
|
|
|
#define NS_CYCLE_COLLECTION_CLASSNAME(_class) \
|
|
_class::NS_CYCLE_COLLECTION_INNERCLASS
|
|
|
|
#define NS_CYCLE_COLLECTION_INNERNAME \
|
|
_cycleCollectorGlobal
|
|
|
|
#define NS_CYCLE_COLLECTION_NAME(_class) \
|
|
_class::NS_CYCLE_COLLECTION_INNERNAME
|
|
|
|
#define NS_IMPL_QUERY_CYCLE_COLLECTION(_class) \
|
|
if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \
|
|
*aInstancePtr = & NS_CYCLE_COLLECTION_NAME(_class); \
|
|
return NS_OK; \
|
|
} else
|
|
|
|
#define NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) \
|
|
if ( aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ) \
|
|
foundInterface = NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this); \
|
|
else
|
|
|
|
#define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \
|
|
NS_IMPL_QUERY_CYCLE_COLLECTION(_class)
|
|
|
|
#define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) \
|
|
NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class)
|
|
|
|
#define NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) \
|
|
NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \
|
|
NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class)
|
|
|
|
#define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(_class) \
|
|
NS_INTERFACE_MAP_BEGIN(_class) \
|
|
NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class)
|
|
|
|
#define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(_class) \
|
|
NS_INTERFACE_MAP_BEGIN(_class) \
|
|
NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class)
|
|
|
|
#define NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(_class) \
|
|
if (rv == NS_OK) return rv; \
|
|
nsISupports* foundInterface; \
|
|
NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class)
|
|
|
|
#define NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(_class) \
|
|
NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr) \
|
|
{ \
|
|
NS_PRECONDITION(aInstancePtr, "null out param"); \
|
|
\
|
|
if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \
|
|
*aInstancePtr = &NS_CYCLE_COLLECTION_NAME(_class); \
|
|
return NS_OK; \
|
|
} \
|
|
nsresult rv;
|
|
|
|
#define NS_CYCLE_COLLECTION_UPCAST(obj, clazz) \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(clazz)::Upcast(obj)
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Helpers for implementing nsCycleCollectionParticipant::RootAndUnlinkJSObjects
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_ROOT_BEGIN(_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \
|
|
{ \
|
|
nsISupports *s = static_cast<nsISupports*>(p); \
|
|
NS_ASSERTION(CheckForRightISupports(s), \
|
|
"not the nsISupports pointer we expect"); \
|
|
nsXPCOMCycleCollectionParticipant::RootAndUnlinkJSObjects(s); \
|
|
_class *tmp = Downcast(s);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_ROOT_BEGIN_NATIVE(_class, _root_function) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p); \
|
|
tmp->_root_function();
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_ROOT_END \
|
|
return NS_OK; \
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Helpers for implementing nsCycleCollectionParticipant::Unlink
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
|
|
{ \
|
|
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_UNLINK_BEGIN_INHERITED(_class, _base_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
|
|
{ \
|
|
nsISupports *s = static_cast<nsISupports*>(p); \
|
|
NS_ASSERTION(CheckForRightISupports(s), \
|
|
"not the nsISupports pointer we expect"); \
|
|
_class *tmp = static_cast<_class*>(Downcast(s)); \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Unlink(s);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_NATIVE(_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_field) \
|
|
tmp->_field = NULL;
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMARRAY(_field) \
|
|
tmp->_field.Clear();
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(_field) \
|
|
tmp->_field.Clear();
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
return NS_OK; \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
|
|
{ \
|
|
NS_ASSERTION(CheckForRightISupports(static_cast<nsISupports*>(p)), \
|
|
"not the nsISupports pointer we expect"); \
|
|
return NS_OK; \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNLINK_NATIVE_0(_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
|
|
{ \
|
|
return NS_OK; \
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Helpers for implementing nsCycleCollectionParticipant::Traverse
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifdef DEBUG_CC
|
|
#define NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) \
|
|
cb.DescribeNode(RefCounted, _refcnt, sizeof(_class), #_class);
|
|
#else
|
|
#define NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) \
|
|
cb.DescribeNode(RefCounted, _refcnt);
|
|
#endif
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_REFCNT(_class, _refcnt) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
|
|
(void *p, \
|
|
nsCycleCollectionTraversalCallback &cb) \
|
|
{ \
|
|
nsISupports *s = static_cast<nsISupports*>(p); \
|
|
NS_ASSERTION(CheckForRightISupports(s), \
|
|
"not the nsISupports pointer we expect"); \
|
|
_class *tmp = Downcast(s); \
|
|
NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_REFCNT(_class, tmp->mRefCnt.get())
|
|
|
|
// Base class' CC participant should return NS_SUCCESS_INTERRUPTED_TRAVERSE
|
|
// from Traverse if it wants derived classes to not traverse anything from
|
|
// their CC participant.
|
|
#define NS_SUCCESS_INTERRUPTED_TRAVERSE \
|
|
NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_XPCOM, 2)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(_class, _base_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
|
|
(void *p, \
|
|
nsCycleCollectionTraversalCallback &cb) \
|
|
{ \
|
|
nsISupports *s = static_cast<nsISupports*>(p); \
|
|
NS_ASSERTION(CheckForRightISupports(s), \
|
|
"not the nsISupports pointer we expect"); \
|
|
_class *tmp = static_cast<_class*>(Downcast(s)); \
|
|
if (NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Traverse(s, cb) == \
|
|
NS_SUCCESS_INTERRUPTED_TRAVERSE) { \
|
|
return NS_SUCCESS_INTERRUPTED_TRAVERSE; \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_BEGIN(_class) \
|
|
NS_IMETHODIMP \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
|
|
(void *p, \
|
|
nsCycleCollectionTraversalCallback &cb) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p); \
|
|
NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, tmp->mRefCnt.get())
|
|
|
|
#ifdef DEBUG_CC
|
|
#define NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(_cb, _name) \
|
|
PR_BEGIN_MACRO (_cb).NoteNextEdgeName(_name); PR_END_MACRO
|
|
#else
|
|
#define NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(_cb, _name) \
|
|
PR_BEGIN_MACRO PR_END_MACRO
|
|
#endif
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(_field) \
|
|
PR_BEGIN_MACRO \
|
|
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \
|
|
cb.NoteXPCOMChild(tmp->_field); \
|
|
PR_END_MACRO;
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_field) \
|
|
PR_BEGIN_MACRO \
|
|
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \
|
|
cb.NoteXPCOMChild(tmp->_field.get()); \
|
|
PR_END_MACRO;
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(_field, _base) \
|
|
PR_BEGIN_MACRO \
|
|
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \
|
|
cb.NoteXPCOMChild(NS_ISUPPORTS_CAST(_base*, tmp->_field)); \
|
|
PR_END_MACRO;
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(_field) \
|
|
{ \
|
|
PRInt32 i; \
|
|
for (i = 0; i < tmp->_field.Count(); ++i) { \
|
|
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field "[i]"); \
|
|
cb.NoteXPCOMChild(tmp->_field[i]); \
|
|
} \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(_ptr, _ptr_class, _name) \
|
|
PR_BEGIN_MACRO \
|
|
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, _name); \
|
|
cb.NoteNativeChild(_ptr, &NS_CYCLE_COLLECTION_NAME(_ptr_class)); \
|
|
PR_END_MACRO;
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_MEMBER(_field, _field_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(tmp->_field, _field_class, \
|
|
#_field)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(_array, _element_class, \
|
|
_name) \
|
|
{ \
|
|
PRUint32 i, length = (_array).Length(); \
|
|
for (i = 0; i < length; ++i) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR((_array)[i], \
|
|
_element_class, \
|
|
_name "[i]"); \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY_MEMBER(_field, \
|
|
_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)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_END \
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// 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__
|