1 files changed, 211 insertions, 0 deletions
diff --git a/db/mork/src/morkRowMap.h b/db/mork/src/morkRowMap.h
new file mode 100644
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+++ b/db/mork/src/morkRowMap.h
@@ -0,0 +1,211 @@
+/* -*- 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 _MORKROWMAP_
+#define _MORKROWMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKPROBEMAP_
+#include "morkProbeMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowMap  /*i*/ 0x724D /* ascii 'rM' */
+
+/*| morkRowMap: maps a set of morkRow by contained Oid
+|*/
+class morkRowMap : public morkMap { // for mapping row IDs to rows
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev) override; // CloseRowMap() only if open
+  virtual ~morkRowMap(); // assert that CloseRowMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkRowMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_size inSlots);
+  void CloseRowMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsRowMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+  virtual mork_bool // note: equal(a,b) implies hash(a) == hash(b)
+  Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const override;
+  // implemented using morkRow::EqualRow()
+
+  virtual mork_u4 // note: equal(a,b) implies hash(a) == hash(b)
+  Hash(morkEnv* ev, const void* inKey) const override;
+  // implemented using morkRow::HashRow()
+// } ===== end morkMap poly interface =====
+
+public: // other map methods
+
+  mork_bool AddRow(morkEnv* ev, morkRow* ioRow);
+  // AddRow() returns ev->Good()
+
+  morkRow*  CutOid(morkEnv* ev, const mdbOid* inOid);
+  // CutRid() returns the row removed equal to inRid, if there was one
+
+  morkRow*  CutRow(morkEnv* ev, const morkRow* ioRow);
+  // CutRow() returns the row removed equal to ioRow, if there was one
+  
+  morkRow*  GetOid(morkEnv* ev, const mdbOid* inOid);
+  // GetOid() returns the row equal to inRid, or else nil
+  
+  morkRow*  GetRow(morkEnv* ev, const morkRow* ioRow);
+  // GetRow() returns the row equal to ioRow, or else nil
+  
+  // note the rows are owned elsewhere, usuall by morkRowSpace
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakRowMap(morkRowMap* me,
+    morkEnv* ev, morkRowMap** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongRowMap(morkRowMap* me,
+    morkEnv* ev, morkRowMap** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+class morkRowMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkRowMapIter(morkEnv* ev, morkRowMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkRowMapIter( ) : morkMapIter()  { }
+  void InitRowMapIter(morkEnv* ev, morkRowMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change* FirstRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->First(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* NextRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->Next(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* HereRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->Here(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* CutHereRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->CutHere(ev, outRowPtr, /*val*/ (void*) 0); }
+};
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowProbeMap  /*i*/ 0x726D /* ascii 'rm' */
+
+/*| morkRowProbeMap: maps a set of morkRow by contained Oid
+|*/
+class morkRowProbeMap : public morkProbeMap { // for mapping row IDs to rows
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev) override; // CloseRowProbeMap() only if open
+  virtual ~morkRowProbeMap(); // assert CloseRowProbeMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkRowProbeMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_size inSlots);
+  void CloseRowProbeMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsRowMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowMap; }
+// } ===== end morkNode methods =====
+
+  // { ===== begin morkProbeMap methods =====
+  virtual mork_test // hit(a,b) implies hash(a) == hash(b)
+  MapTest(morkEnv* ev, const void* inMapKey, const void* inAppKey) const override;
+
+  virtual mork_u4 // hit(a,b) implies hash(a) == hash(b)
+  MapHash(morkEnv* ev, const void* inAppKey) const override;
+
+  virtual mork_u4 ProbeMapHashMapKey(morkEnv* ev, const void* inMapKey) const override;
+
+  // virtual mork_bool ProbeMapIsKeyNil(morkEnv* ev, void* ioMapKey);
+
+  // virtual void ProbeMapClearKey(morkEnv* ev, // put 'nil' alls keys inside map
+  //   void* ioMapKey, mork_count inKeyCount); // array of keys inside map
+
+  // virtual void ProbeMapPushIn(morkEnv* ev, // move (key,val) into the map
+  //   const void* inAppKey, const void* inAppVal, // (key,val) outside map
+  //   void* outMapKey, void* outMapVal);      // (key,val) inside map
+
+  // virtual void ProbeMapPullOut(morkEnv* ev, // move (key,val) out from the map
+  //   const void* inMapKey, const void* inMapVal, // (key,val) inside map
+  //   void* outAppKey, void* outAppVal) const;    // (key,val) outside map
+  // } ===== end morkProbeMap methods =====
+
+public: // other map methods
+
+  mork_bool AddRow(morkEnv* ev, morkRow* ioRow);
+  // AddRow() returns ev->Good()
+
+  morkRow*  CutOid(morkEnv* ev, const mdbOid* inOid);
+  // CutRid() returns the row removed equal to inRid, if there was one
+
+  morkRow*  CutRow(morkEnv* ev, const morkRow* ioRow);
+  // CutRow() returns the row removed equal to ioRow, if there was one
+  
+  morkRow*  GetOid(morkEnv* ev, const mdbOid* inOid);
+  // GetOid() returns the row equal to inRid, or else nil
+  
+  morkRow*  GetRow(morkEnv* ev, const morkRow* ioRow);
+  // GetRow() returns the row equal to ioRow, or else nil
+  
+  // note the rows are owned elsewhere, usuall by morkRowSpace
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakRowProbeMap(morkRowProbeMap* me,
+    morkEnv* ev, morkRowProbeMap** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongRowProbeMap(morkRowProbeMap* me,
+    morkEnv* ev, morkRowProbeMap** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+class morkRowProbeMapIter: public morkProbeMapIter{ // typesafe wrapper class
+
+public:
+  morkRowProbeMapIter(morkEnv* ev, morkRowProbeMap* ioMap)
+  : morkProbeMapIter(ev, ioMap) { }
+ 
+  morkRowProbeMapIter( ) : morkProbeMapIter()  { }
+  void InitRowMapIter(morkEnv* ev, morkRowProbeMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change* FirstRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->First(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* NextRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->Next(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* HereRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->Here(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* CutHereRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->CutHere(ev, outRowPtr, /*val*/ (void*) 0); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROWMAP_ */