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-rw-r--r--db/mork/src/morkArray.h98
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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 _MORKARRAY_
+#define _MORKARRAY_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kArray /*i*/ 0x4179 /* ascii 'Ay' */
+
+class morkArray : public morkNode { // row iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+ // nsIMdbHeap* mNode_Heap;
+ // mork_able mNode_Mutable; // can this node be modified?
+ // mork_load mNode_Load; // is this node clean or dirty?
+ // 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_uses mNode_Uses; // refcount for strong refs
+ // mork_refs mNode_Refs; // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+ void** mArray_Slots; // array of pointers
+ nsIMdbHeap* mArray_Heap; // required heap for allocating mArray_Slots
+ mork_fill mArray_Fill; // logical count of used slots in mArray_Slots
+ mork_size mArray_Size; // physical count of mArray_Slots ( >= Fill)
+ mork_seed mArray_Seed; // change counter for syncing with iterators
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+ virtual void CloseMorkNode(morkEnv* ev) override; // CloseArray()
+ virtual ~morkArray(); // assert that close executed earlier
+
+public: // morkArray construction & destruction
+ morkArray(morkEnv* ev, const morkUsage& inUsage,
+ nsIMdbHeap* ioHeap, mork_size inSize, nsIMdbHeap* ioSlotHeap);
+ void CloseArray(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+ morkArray(const morkArray& other);
+ morkArray& operator=(const morkArray& other);
+
+public: // dynamic type identification
+ mork_bool IsArray() const
+ { return IsNode() && mNode_Derived == morkDerived_kArray; }
+// } ===== end morkNode methods =====
+
+public: // typing & errors
+ static void NonArrayTypeError(morkEnv* ev);
+ static void IndexBeyondEndError(morkEnv* ev);
+ static void NilSlotsAddressError(morkEnv* ev);
+ static void FillBeyondSizeError(morkEnv* ev);
+
+public: // other table row cursor methods
+
+ mork_fill Length() const { return mArray_Fill; }
+ mork_size Capacity() const { return mArray_Size; }
+
+ mork_bool Grow(morkEnv* ev, mork_size inNewSize);
+ // Grow() returns true if capacity becomes >= inNewSize and ev->Good()
+
+ void* At(mork_pos inPos) const { return mArray_Slots[ inPos ]; }
+ void AtPut(mork_pos inPos, void* ioSlot)
+ { mArray_Slots[ inPos ] = ioSlot; }
+
+ void* SafeAt(morkEnv* ev, mork_pos inPos);
+ void SafeAtPut(morkEnv* ev, mork_pos inPos, void* ioSlot);
+
+ mork_pos AppendSlot(morkEnv* ev, void* ioSlot);
+ void AddSlot(morkEnv* ev, mork_pos inPos, void* ioSlot);
+ void CutSlot(morkEnv* ev, mork_pos inPos);
+ void CutAllSlots(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+ static void SlotWeakArray(morkArray* me,
+ morkEnv* ev, morkArray** ioSlot)
+ { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+
+ static void SlotStrongArray(morkArray* me,
+ morkEnv* ev, morkArray** ioSlot)
+ { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKTABLEROWCURSOR_ */