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Diffstat (limited to 'db/mork/src/morkArray.h')
-rw-r--r-- | db/mork/src/morkArray.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/db/mork/src/morkArray.h b/db/mork/src/morkArray.h new file mode 100644 index 000000000..d987b5d25 --- /dev/null +++ b/db/mork/src/morkArray.h @@ -0,0 +1,98 @@ +/* -*- 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_ */ |