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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _MORKATOMSPACE_
#define _MORKATOMSPACE_ 1
#ifndef _MORK_
#include "mork.h"
#endif
#ifndef _MORKNODE_
#include "morkNode.h"
#endif
#ifndef _MORKSPACE_
#include "morkSpace.h"
#endif
#ifndef _MORKATOMMAP_
#include "morkAtomMap.h"
#endif
#ifndef _MORKNODEMAP_
#include "morkNodeMap.h"
#endif
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
/*| kMinUnderId: the smallest ID we auto-assign to the 'under' namespace
**| reserved for tokens expected to occur very frequently, such as the names
**| of columns. We reserve single byte ids in the ASCII range to correspond
**| one-to-one to those tokens consisting single ASCII characters (so that
**| this assignment is always known and constant). So we start at 0x80, and
**| then reserve the upper half of two hex digit ids and all the three hex
**| digit IDs for the 'under' namespace for common tokens.
|*/
#define morkAtomSpace_kMinUnderId 0x80 /* low 7 bits mean byte tokens */
#define morkAtomSpace_kMaxSevenBitAid 0x7F /* low seven bit integer ID */
/*| kMinOverId: the smallest ID we auto-assign to the 'over' namespace that
**| might include very large numbers of tokens that are used infrequently,
**| so that we care less whether the shortest hex representation is used.
**| So we start all IDs for 'over' category tokens at a value range that
**| needs at least four hex digits, so we can reserve three hex digits and
**| shorter for more commonly occuring tokens in the 'under' category.
|*/
#define morkAtomSpace_kMinOverId 0x1000 /* using at least four hex bytes */
#define morkDerived_kAtomSpace /*i*/ 0x6153 /* ascii 'aS' */
#define morkAtomSpace_kColumnScope ((mork_scope) 'c') /* column scope is forever */
/*| morkAtomSpace:
|*/
class morkAtomSpace : public morkSpace { //
// public: // slots inherited from morkSpace (meant to inform only)
// nsIMdbHeap* mNode_Heap;
// mork_base mNode_Base; // must equal morkBase_kNode
// mork_derived mNode_Derived; // depends on specific node subclass
// mork_access mNode_Access; // kOpen, kClosing, kShut, or kDead
// mork_usage mNode_Usage; // kHeap, kStack, kMember, kGlobal, kNone
// mork_able mNode_Mutable; // can this node be modified?
// mork_load mNode_Load; // is this node clean or dirty?
// mork_uses mNode_Uses; // refcount for strong refs
// mork_refs mNode_Refs; // refcount for strong refs + weak refs
// morkStore* mSpace_Store; // weak ref to containing store
// mork_bool mSpace_DoAutoIDs; // whether db should assign member IDs
// mork_bool mSpace_HaveDoneAutoIDs; // whether actually auto assigned IDs
// mork_u1 mSpace_Pad[ 2 ]; // pad to u4 alignment
public: // state is public because the entire Mork system is private
mork_aid mAtomSpace_HighUnderId; // high ID in 'under' range
mork_aid mAtomSpace_HighOverId; // high ID in 'over' range
morkAtomAidMap mAtomSpace_AtomAids; // all atoms in space by ID
morkAtomBodyMap mAtomSpace_AtomBodies; // all atoms in space by body
public: // more specific dirty methods for atom space:
void SetAtomSpaceDirty() { this->SetNodeDirty(); }
void SetAtomSpaceClean() { this->SetNodeClean(); }
mork_bool IsAtomSpaceClean() const { return this->IsNodeClean(); }
mork_bool IsAtomSpaceDirty() const { return this->IsNodeDirty(); }
// { ===== begin morkNode interface =====
public: // morkNode virtual methods
virtual void CloseMorkNode(morkEnv* ev) override; // CloseAtomSpace() only if open
virtual ~morkAtomSpace(); // assert that CloseAtomSpace() executed earlier
public: // morkMap construction & destruction
morkAtomSpace(morkEnv* ev, const morkUsage& inUsage, mork_scope inScope,
morkStore* ioStore, nsIMdbHeap* ioNodeHeap, nsIMdbHeap* ioSlotHeap);
void CloseAtomSpace(morkEnv* ev); // called by CloseMorkNode();
public: // dynamic type identification
mork_bool IsAtomSpace() const
{ return IsNode() && mNode_Derived == morkDerived_kAtomSpace; }
// } ===== end morkNode methods =====
public: // typing
void NonAtomSpaceTypeError(morkEnv* ev);
public: // setup
mork_bool MarkAllAtomSpaceContentDirty(morkEnv* ev);
// MarkAllAtomSpaceContentDirty() visits every space object and marks
// them dirty, including every table, row, cell, and atom. The return
// equals ev->Good(), to show whether any error happened. This method is
// intended for use in the beginning of a "compress commit" which writes
// all store content, whether dirty or not. We dirty everything first so
// that later iterations over content can mark things clean as they are
// written, and organize the process of serialization so that objects are
// written only at need (because of being dirty).
public: // other space methods
// void ReserveColumnAidCount(mork_count inCount)
// {
// mAtomSpace_HighUnderId = morkAtomSpace_kMinUnderId + inCount;
// mAtomSpace_HighOverId = morkAtomSpace_kMinOverId + inCount;
// }
mork_num CutAllAtoms(morkEnv* ev, morkPool* ioPool);
// CutAllAtoms() puts all the atoms back in the pool.
morkBookAtom* MakeBookAtomCopyWithAid(morkEnv* ev,
const morkFarBookAtom& inAtom, mork_aid inAid);
// Make copy of inAtom and put it in both maps, using specified ID.
morkBookAtom* MakeBookAtomCopy(morkEnv* ev, const morkFarBookAtom& inAtom);
// Make copy of inAtom and put it in both maps, using a new ID as needed.
mork_aid MakeNewAtomId(morkEnv* ev, morkBookAtom* ioAtom);
// generate an unused atom id.
public: // typesafe refcounting inlines calling inherited morkNode methods
static void SlotWeakAtomSpace(morkAtomSpace* me,
morkEnv* ev, morkAtomSpace** ioSlot)
{ morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
static void SlotStrongAtomSpace(morkAtomSpace* me,
morkEnv* ev, morkAtomSpace** ioSlot)
{ morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
};
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
#define morkDerived_kAtomSpaceMap /*i*/ 0x615A /* ascii 'aZ' */
/*| morkAtomSpaceMap: maps mork_scope -> morkAtomSpace
|*/
class morkAtomSpaceMap : public morkNodeMap { // for mapping tokens to tables
public:
virtual ~morkAtomSpaceMap();
morkAtomSpaceMap(morkEnv* ev, const morkUsage& inUsage,
nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
public: // other map methods
mork_bool AddAtomSpace(morkEnv* ev, morkAtomSpace* ioAtomSpace)
{ return this->AddNode(ev, ioAtomSpace->SpaceScope(), ioAtomSpace); }
// the AddAtomSpace() boolean return equals ev->Good().
mork_bool CutAtomSpace(morkEnv* ev, mork_scope inScope)
{ return this->CutNode(ev, inScope); }
// The CutAtomSpace() boolean return indicates whether removal happened.
morkAtomSpace* GetAtomSpace(morkEnv* ev, mork_scope inScope)
{ return (morkAtomSpace*) this->GetNode(ev, inScope); }
// Note the returned space does NOT have an increase in refcount for this.
mork_num CutAllAtomSpaces(morkEnv* ev)
{ return this->CutAllNodes(ev); }
// CutAllAtomSpaces() releases all the referenced table values.
};
class morkAtomSpaceMapIter: public morkMapIter{ // typesafe wrapper class
public:
morkAtomSpaceMapIter(morkEnv* ev, morkAtomSpaceMap* ioMap)
: morkMapIter(ev, ioMap) { }
morkAtomSpaceMapIter( ) : morkMapIter() { }
void InitAtomSpaceMapIter(morkEnv* ev, morkAtomSpaceMap* ioMap)
{ this->InitMapIter(ev, ioMap); }
mork_change*
FirstAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
{ return this->First(ev, outScope, outAtomSpace); }
mork_change*
NextAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
{ return this->Next(ev, outScope, outAtomSpace); }
mork_change*
HereAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
{ return this->Here(ev, outScope, outAtomSpace); }
mork_change*
CutHereAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
{ return this->CutHere(ev, outScope, outAtomSpace); }
};
//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
#endif /* _MORKATOMSPACE_ */
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