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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
An object archiving system for SuperCollider.
*/
#ifndef _PyrDeepCopier_
#define _PyrDeepCopier_
#include "PyrObject.h"
#include "SC_AllocPool.h"
#include "PyrKernel.h"
#include "PyrPrimitive.h"
#include "VMGlobals.h"
#include "GC.h"
#include "ReadWriteMacros.h"
const int32 kDeepCopierObjectArrayInitialCapacity = 32;
class PyrDeepCopier
{
public:
PyrDeepCopier(VMGlobals *inG)
: g(inG), objectArray(initialObjectArray), numObjects(0),
objectArrayCapacity( kDeepCopierObjectArrayInitialCapacity )
{
}
~PyrDeepCopier()
{
if (objectArrayCapacity > kDeepCopierObjectArrayInitialCapacity) {
g->allocPool->Free(objectArray);
}
}
long doDeepCopy(PyrSlot *objectSlot)
{
long err = errNone;
try {
if (IsObj(objectSlot)) {
constructObjectArray(objectSlot->uo);
for (int i=0; i<numObjects; ++i) {
fixSlots(objectArray[i]);
}
fixObjSlot(objectSlot);
for (int i=0; i<numObjects; ++i) {
objectArray[i]->ClearMark();
}
}
} catch (std::exception &ex) {
error(ex.what());
err = errFailed;
}
return err;
}
private:
void recurse(PyrObject *obj, int n)
{
//post("->recurse %s %08X\n", obj->classptr->name.us->name, obj);
PyrSlot *slot = obj->slots;
for (int i=0; i<n; ++i, ++slot) {
if (IsObj(slot)) constructObjectArray(slot->uo);
}
//post("<-recurse %s %08X\n", obj->classptr->name.us->name, obj);
}
void growObjectArray()
{
int32 newObjectArrayCapacity = objectArrayCapacity << 1;
int32 newSize = newObjectArrayCapacity * sizeof(PyrObject*);
PyrObject** newArray = (PyrObject**)g->allocPool->Alloc(newSize);
memcpy(newArray, objectArray, numObjects * sizeof(PyrObject*));
if (objectArrayCapacity > kDeepCopierObjectArrayInitialCapacity) {
g->allocPool->Free(objectArray);
}
objectArrayCapacity = newObjectArrayCapacity;
objectArray = newArray;
}
void putSelf(PyrObject *obj)
{
obj->SetMark();
obj->scratch1 = numObjects;
// expand array if needed
if (numObjects >= objectArrayCapacity) growObjectArray();
//post("putSelf %d %08X\n", numObjects, obj);
// add to array
objectArray[numObjects++] = obj;
}
void putCopy(PyrObject *obj)
{
obj->SetMark();
obj->scratch1 = numObjects;
// expand array if needed
if (numObjects+2 >= objectArrayCapacity) growObjectArray();
// add a shallow copy to object array
PyrObject *copy = copyObject(g->gc, obj, false);
copy->ClearMark();
//post("putCopy %d %08X\n", numObjects, copy);
// add to array
objectArray[numObjects++] = copy;
objectArray[numObjects++] = obj;
}
void constructObjectArray(PyrObject *obj)
{
//post("->constructObjectArray %s %08X\n", obj->classptr->name.us->name, obj);
if (!obj->IsMarked()) {
if (isKindOf(obj, class_class)) {
putSelf(obj);
} else if (isKindOf(obj, class_process)) {
putSelf(obj);
} else if (isKindOf(obj, s_interpreter->u.classobj)) {
putSelf(obj);
} else if (isKindOf(obj, class_rawarray)) {
putCopy(obj);
} else if (isKindOf(obj, class_array)) {
putCopy(obj);
recurse(obj, obj->size);
} else if (isKindOf(obj, class_func)) {
putSelf(obj);
} else if (isKindOf(obj, class_method)) {
putSelf(obj);
} else if (isKindOf(obj, class_thread)) {
putSelf(obj);
} else {
putCopy(obj);
recurse(obj, obj->size);
}
}
//post("<-constructObjectArray %s %08X\n", obj->classptr->name.us->name, obj);
}
void fixObjSlot(PyrSlot* slot)
{
//post("fixObjSlot %s %08X %d %08X\n", slot->uo->classptr->name.us->name, slot->uo, slot->uo->scratch1, objectArray[slot->uo->scratch1]);
slot->uo = objectArray[slot->uo->scratch1];
}
void fixSlots(PyrObject *obj)
{
//post("fixSlots %s %08X %d\n", obj->classptr->name.us->name, obj, obj->IsMarked());
if (!obj->IsMarked() && obj->obj_format <= obj_slot) { // it is a copy
PyrSlot *slot = obj->slots;
for (int i=0; i<obj->size; ++i, ++slot) {
if (IsObj(slot)) fixObjSlot(slot);
}
}
}
VMGlobals *g;
PyrObject **objectArray;
int32 numObjects;
int32 objectArrayCapacity;
PyrObject *initialObjectArray[kDeepCopierObjectArrayInitialCapacity];
};
/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
An object archiving system for SuperCollider.
*/
#endif
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