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gecko/db/mork/src/morkAtomSpace.cpp

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/* -*- Mode: C++; tab-width: 4; 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
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* 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 _MDB_
#include "mdb.h"
#endif
#ifndef _MORK_
#include "mork.h"
#endif
#ifndef _MORKNODE_
#include "morkNode.h"
#endif
#ifndef _MORKMAP_
#include "morkMap.h"
#endif
#ifndef _MORKSPACE_
#include "morkSpace.h"
#endif
#ifndef _MORKENV_
#include "morkEnv.h"
#endif
#ifndef _MORKSPACE_
#include "morkSpace.h"
#endif
#ifndef _MORKATOMSPACE_
#include "morkAtomSpace.h"
#endif
#ifndef _MORKPOOL_
#include "morkPool.h"
#endif
#ifndef _MORKSTORE_
#include "morkStore.h"
#endif
#ifndef _MORKATOM_
#include "morkAtom.h"
#endif
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
// ````` ````` ````` ````` `````
// { ===== begin morkNode interface =====
/*public virtual*/ void
morkAtomSpace::CloseMorkNode(morkEnv* ev) // CloseAtomSpace() only if open
{
if ( this->IsOpenNode() )
{
this->MarkClosing();
this->CloseAtomSpace(ev);
this->MarkShut();
}
}
/*public virtual*/
morkAtomSpace::~morkAtomSpace() // assert CloseAtomSpace() executed earlier
{
MORK_ASSERT(mAtomSpace_HighUnderId==0);
MORK_ASSERT(mAtomSpace_HighOverId==0);
MORK_ASSERT(this->IsShutNode());
MORK_ASSERT(mAtomSpace_AtomAids.IsShutNode());
MORK_ASSERT(mAtomSpace_AtomBodies.IsShutNode());
}
/*public non-poly*/
morkAtomSpace::morkAtomSpace(morkEnv* ev, const morkUsage& inUsage,
mork_scope inScope, morkStore* ioStore,
nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
: morkSpace(ev, inUsage, inScope, ioStore, ioHeap, ioSlotHeap)
, mAtomSpace_HighUnderId( morkAtomSpace_kMinUnderId )
, mAtomSpace_HighOverId( morkAtomSpace_kMinOverId )
, mAtomSpace_AtomAids(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap)
, mAtomSpace_AtomBodies(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap)
{
// the morkSpace base constructor handles any dirty propagation
if ( ev->Good() )
mNode_Derived = morkDerived_kAtomSpace;
}
/*public non-poly*/ void
morkAtomSpace::CloseAtomSpace(morkEnv* ev) // called by CloseMorkNode();
{
if ( this )
{
if ( this->IsNode() )
{
mAtomSpace_AtomBodies.CloseMorkNode(ev);
morkStore* store = mSpace_Store;
if ( store )
this->CutAllAtoms(ev, &store->mStore_Pool);
mAtomSpace_AtomAids.CloseMorkNode(ev);
this->CloseSpace(ev);
mAtomSpace_HighUnderId = 0;
mAtomSpace_HighOverId = 0;
this->MarkShut();
}
else
this->NonNodeError(ev);
}
else
ev->NilPointerError();
}
// } ===== end morkNode methods =====
// ````` ````` ````` ````` `````
/*static*/ void
morkAtomSpace::NonAtomSpaceTypeError(morkEnv* ev)
{
ev->NewError("non morkAtomSpace");
}
mork_num
morkAtomSpace::CutAllAtoms(morkEnv* ev, morkPool* ioPool)
{
#ifdef MORK_ENABLE_ZONE_ARENAS
MORK_USED_2(ev, ioPool);
return 0;
#else /*MORK_ENABLE_ZONE_ARENAS*/
if ( this->IsAtomSpaceClean() )
this->MaybeDirtyStoreAndSpace();
mork_num outSlots = mAtomSpace_AtomAids.MapFill();
morkBookAtom* a = 0; // old key atom in the map
morkStore* store = mSpace_Store;
mork_change* c = 0;
morkAtomAidMapIter i(ev, &mAtomSpace_AtomAids);
for ( c = i.FirstAtom(ev, &a); c ; c = i.NextAtom(ev, &a) )
{
if ( a )
ioPool->ZapAtom(ev, a, &store->mStore_Zone);
#ifdef MORK_ENABLE_PROBE_MAPS
// do not cut anything from the map
#else /*MORK_ENABLE_PROBE_MAPS*/
i.CutHereAtom(ev, /*key*/ (morkBookAtom**) 0);
#endif /*MORK_ENABLE_PROBE_MAPS*/
}
return outSlots;
#endif /*MORK_ENABLE_ZONE_ARENAS*/
}
morkBookAtom*
morkAtomSpace::MakeBookAtomCopyWithAid(morkEnv* ev,
const morkFarBookAtom& inAtom, mork_aid inAid)
// Make copy of inAtom and put it in both maps, using specified ID.
{
morkBookAtom* outAtom = 0;
morkStore* store = mSpace_Store;
if ( ev->Good() && store )
{
morkPool* pool = this->GetSpaceStorePool();
outAtom = pool->NewFarBookAtomCopy(ev, inAtom, &store->mStore_Zone);
if ( outAtom )
{
if ( store->mStore_CanDirty )
{
outAtom->SetAtomDirty();
if ( this->IsAtomSpaceClean() )
this->MaybeDirtyStoreAndSpace();
}
outAtom->mBookAtom_Id = inAid;
outAtom->mBookAtom_Space = this;
mAtomSpace_AtomAids.AddAtom(ev, outAtom);
mAtomSpace_AtomBodies.AddAtom(ev, outAtom);
if ( this->SpaceScope() == morkAtomSpace_kColumnScope )
outAtom->MakeCellUseForever(ev);
if ( mAtomSpace_HighUnderId <= inAid )
mAtomSpace_HighUnderId = inAid + 1;
}
}
return outAtom;
}
morkBookAtom*
morkAtomSpace::MakeBookAtomCopy(morkEnv* ev, const morkFarBookAtom& inAtom)
// make copy of inAtom and put it in both maps, using a new ID as needed.
{
morkBookAtom* outAtom = 0;
morkStore* store = mSpace_Store;
if ( ev->Good() && store )
{
if ( store->mStore_CanAutoAssignAtomIdentity )
{
morkPool* pool = this->GetSpaceStorePool();
morkBookAtom* atom = pool->NewFarBookAtomCopy(ev, inAtom, &mSpace_Store->mStore_Zone);
if ( atom )
{
mork_aid id = this->MakeNewAtomId(ev, atom);
if ( id )
{
if ( store->mStore_CanDirty )
{
atom->SetAtomDirty();
if ( this->IsAtomSpaceClean() )
this->MaybeDirtyStoreAndSpace();
}
outAtom = atom;
atom->mBookAtom_Space = this;
mAtomSpace_AtomAids.AddAtom(ev, atom);
mAtomSpace_AtomBodies.AddAtom(ev, atom);
if ( this->SpaceScope() == morkAtomSpace_kColumnScope )
outAtom->MakeCellUseForever(ev);
}
else
pool->ZapAtom(ev, atom, &mSpace_Store->mStore_Zone);
}
}
else
mSpace_Store->CannotAutoAssignAtomIdentityError(ev);
}
return outAtom;
}
mork_aid
morkAtomSpace::MakeNewAtomId(morkEnv* ev, morkBookAtom* ioAtom)
{
mork_aid outAid = 0;
mork_tid id = mAtomSpace_HighUnderId;
mork_num count = 8; // try up to eight times
while ( !outAid && count ) // still trying to find an unused table ID?
{
--count;
ioAtom->mBookAtom_Id = id;
if ( !mAtomSpace_AtomAids.GetAtom(ev, ioAtom) )
outAid = id;
else
{
MORK_ASSERT(morkBool_kFalse); // alert developer about ID problems
++id;
}
}
mAtomSpace_HighUnderId = id + 1;
return outAid;
}
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
morkAtomSpaceMap::~morkAtomSpaceMap()
{
}
morkAtomSpaceMap::morkAtomSpaceMap(morkEnv* ev, const morkUsage& inUsage,
nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
: morkNodeMap(ev, inUsage, ioHeap, ioSlotHeap)
{
if ( ev->Good() )
mNode_Derived = morkDerived_kAtomSpaceMap;
}
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
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