1 files changed, 233 insertions, 0 deletions
diff --git a/db/mork/src/morkRowSpace.h b/db/mork/src/morkRowSpace.h
new file mode 100644
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+++ b/db/mork/src/morkRowSpace.h
@@ -0,0 +1,233 @@
+/* -*- 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 _MORKROWSPACE_
+#define _MORKROWSPACE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+#ifndef _MORKARRAY_
+#include "morkArray.h"
+#endif
+
+#ifndef _MORKDEQUE_
+#include "morkDeque.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowSpace  /*i*/ 0x7253 /* ascii 'rS' */
+
+#define morkRowSpace_kStartRowMapSlotCount 11
+
+#define morkRowSpace_kMaxIndexCount 8 /* no more indexes than this */
+#define morkRowSpace_kPrimeCacheSize 17 /* should be prime number */
+
+class morkAtomRowMap;
+
+/*| morkRowSpace:
+|*/
+class morkRowSpace : 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
+
+  nsIMdbHeap*  mRowSpace_SlotHeap;
+
+#ifdef MORK_ENABLE_PROBE_MAPS
+  morkRowProbeMap   mRowSpace_Rows;   // hash table of morkRow instances
+#else /*MORK_ENABLE_PROBE_MAPS*/
+  morkRowMap   mRowSpace_Rows;   // hash table of morkRow instances
+#endif /*MORK_ENABLE_PROBE_MAPS*/
+  morkTableMap mRowSpace_Tables; // all the tables in this row scope
+
+  mork_tid     mRowSpace_NextTableId;  // for auto-assigning table IDs
+  mork_rid     mRowSpace_NextRowId;    // for auto-assigning row IDs
+  
+  mork_count   mRowSpace_IndexCount; // if nonzero, row indexes exist
+    
+  // every nonzero slot in IndexCache is a strong ref to a morkAtomRowMap:
+  morkAtomRowMap* mRowSpace_IndexCache[ morkRowSpace_kPrimeCacheSize ];
+
+  morkDeque    mRowSpace_TablesByPriority[ morkPriority_kCount ];
+
+public: // more specific dirty methods for row space:
+  void SetRowSpaceDirty() { this->SetNodeDirty(); }
+  void SetRowSpaceClean() { this->SetNodeClean(); }
+  
+  mork_bool IsRowSpaceClean() const { return this->IsNodeClean(); }
+  mork_bool IsRowSpaceDirty() const { return this->IsNodeDirty(); }
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev) override; // CloseRowSpace() only if open
+  virtual ~morkRowSpace(); // assert that CloseRowSpace() executed earlier
+  
+public: // morkMap construction & destruction
+  morkRowSpace(morkEnv* ev, const morkUsage& inUsage, mork_scope inScope,
+    morkStore* ioStore, nsIMdbHeap* ioNodeHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseRowSpace(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsRowSpace() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowSpace; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonRowSpaceTypeError(morkEnv* ev);
+  static void ZeroScopeError(morkEnv* ev);
+  static void ZeroKindError(morkEnv* ev);
+  static void ZeroTidError(morkEnv* ev);
+  static void MinusOneRidError(morkEnv* ev);
+
+  //static void ExpectAutoIdOnlyError(morkEnv* ev);
+  //static void ExpectAutoIdNeverError(morkEnv* ev);
+
+public: // other space methods
+
+  mork_num CutAllRows(morkEnv* ev, morkPool* ioPool);
+  // CutAllRows() puts all rows and cells back into the pool.
+  
+  morkTable* NewTable(morkEnv* ev, mork_kind inTableKind,
+    mdb_bool inMustBeUnique, const mdbOid* inOptionalMetaRowOid);
+  
+  morkTable* NewTableWithTid(morkEnv* ev, mork_tid inTid,
+    mork_kind inTableKind, const mdbOid* inOptionalMetaRowOid);
+  
+  morkTable* FindTableByKind(morkEnv* ev, mork_kind inTableKind);
+  morkTable* FindTableByTid(morkEnv* ev, mork_tid inTid)
+  { return mRowSpace_Tables.GetTable(ev, inTid); }
+
+  mork_tid MakeNewTableId(morkEnv* ev);
+  mork_rid MakeNewRowId(morkEnv* ev);
+
+  // morkRow* FindRowByRid(morkEnv* ev, mork_rid inRid)
+  // { return (morkRow*) mRowSpace_Rows.GetRow(ev, inRid); }
+
+  morkRow* NewRowWithOid(morkEnv* ev, const mdbOid* inOid);
+  morkRow* NewRow(morkEnv* ev);
+
+  morkRow* FindRow(morkEnv* ev, mork_column inColumn, const mdbYarn* inYarn);
+
+  morkAtomRowMap* ForceMap(morkEnv* ev, mork_column inColumn);
+  morkAtomRowMap* FindMap(morkEnv* ev, mork_column inColumn);
+
+protected: // internal utilities
+  morkAtomRowMap* make_index(morkEnv* ev, mork_column inColumn);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakRowSpace(morkRowSpace* me,
+    morkEnv* ev, morkRowSpace** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongRowSpace(morkRowSpace* me,
+    morkEnv* ev, morkRowSpace** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowSpaceMap  /*i*/ 0x725A /* ascii 'rZ' */
+
+/*| morkRowSpaceMap: maps mork_scope -> morkRowSpace
+|*/
+class morkRowSpaceMap : public morkNodeMap { // for mapping tokens to tables
+
+public:
+
+  virtual ~morkRowSpaceMap();
+  morkRowSpaceMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+
+public: // other map methods
+
+  mork_bool  AddRowSpace(morkEnv* ev, morkRowSpace* ioRowSpace)
+  { return this->AddNode(ev, ioRowSpace->SpaceScope(), ioRowSpace); }
+  // the AddRowSpace() boolean return equals ev->Good().
+
+  mork_bool  CutRowSpace(morkEnv* ev, mork_scope inScope)
+  { return this->CutNode(ev, inScope); }
+  // The CutRowSpace() boolean return indicates whether removal happened. 
+  
+  morkRowSpace*  GetRowSpace(morkEnv* ev, mork_scope inScope)
+  { return (morkRowSpace*) this->GetNode(ev, inScope); }
+  // Note the returned space does NOT have an increase in refcount for this.
+
+  mork_num CutAllRowSpaces(morkEnv* ev)
+  { return this->CutAllNodes(ev); }
+  // CutAllRowSpaces() releases all the referenced table values.
+};
+
+class morkRowSpaceMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkRowSpaceMapIter(morkEnv* ev, morkRowSpaceMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkRowSpaceMapIter( ) : morkMapIter()  { }
+  void InitRowSpaceMapIter(morkEnv* ev, morkRowSpaceMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change*
+  FirstRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->First(ev, outScope, outRowSpace); }
+  
+  mork_change*
+  NextRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->Next(ev, outScope, outRowSpace); }
+  
+  mork_change*
+  HereRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->Here(ev, outScope, outRowSpace); }
+  
+  mork_change*
+  CutHereRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->CutHere(ev, outScope, outRowSpace); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROWSPACE_ */