diff options
Diffstat (limited to 'db/mork/src/morkBead.h')
| -rw-r--r-- | db/mork/src/morkBead.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/db/mork/src/morkBead.h b/db/mork/src/morkBead.h new file mode 100644 index 000000000..83ceef2f4 --- /dev/null +++ b/db/mork/src/morkBead.h @@ -0,0 +1,245 @@ +/* -*- 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 _MORKBEAD_ +#define _MORKBEAD_ 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_kBead /*i*/ 0x426F /* ascii 'Bo' */ + +/*| morkBead: subclass of morkNode that adds knowledge of db suite factory +**| and containing port to those objects that are exposed as instances of +**| nsIMdbBead in the public interface. +|*/ +class morkBead : public morkNode { + +// public: // slots inherited from morkNode (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 + +public: // state is public because the entire Mork system is private + + mork_color mBead_Color; // ID for this bead + +public: // Hash() and Equal() for bead maps are same for all subclasses: + + mork_u4 BeadHash() const { return (mork_u4) mBead_Color; } + mork_bool BeadEqual(const morkBead* inBead) const + { return ( mBead_Color == inBead->mBead_Color); } + +// { ===== begin morkNode interface ===== +public: // morkNode virtual methods + virtual void CloseMorkNode(morkEnv* ev) override; // CloseBead() only if open + virtual ~morkBead(); // assert that CloseBead() executed earlier + +public: // special case for stack construction for map usage: + morkBead(mork_color inBeadColor); // stack-based bead instance + +protected: // special case for morkObject: + morkBead(const morkUsage& inUsage, nsIMdbHeap* ioHeap, + mork_color inBeadColor); + +public: // morkEnv construction & destruction + morkBead(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap, + mork_color inBeadColor); + void CloseBead(morkEnv* ev); // called by CloseMorkNode(); + +private: // copying is not allowed + morkBead(const morkBead& other); + morkBead& operator=(const morkBead& other); + +public: // dynamic type identification + mork_bool IsBead() const + { return IsNode() && mNode_Derived == morkDerived_kBead; } +// } ===== end morkNode methods ===== + + // void NewNilHandleError(morkEnv* ev); // mBead_Handle is nil + +public: // typesafe refcounting inlines calling inherited morkNode methods + static void SlotWeakBead(morkBead* me, + morkEnv* ev, morkBead** ioSlot) + { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); } + + static void SlotStrongBead(morkBead* me, + morkEnv* ev, morkBead** ioSlot) + { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); } +}; + +//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 + +#define morkDerived_kBeadMap /*i*/ 0x744D /* ascii 'bM' */ + +/*| morkBeadMap: maps bead -> bead (key only using mBead_Color) +|*/ +class morkBeadMap : public morkMap { + + +// { ===== begin morkNode interface ===== +public: // morkNode virtual methods + virtual void CloseMorkNode(morkEnv* ev) override; // CloseBeadMap() only if open + virtual ~morkBeadMap(); // assert that CloseBeadMap() executed earlier + +public: // morkMap construction & destruction + morkBeadMap(morkEnv* ev, const morkUsage& inUsage, + nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap); + void CloseBeadMap(morkEnv* ev); // called by CloseMorkNode(); + +public: // dynamic type identification + mork_bool IsBeadMap() const + { return IsNode() && mNode_Derived == morkDerived_kBeadMap; } +// } ===== end morkNode methods ===== + +// { ===== begin morkMap poly interface ===== +public: + virtual mork_bool // *((mork_u4*) inKeyA) == *((mork_u4*) inKeyB) + Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const override; + + virtual mork_u4 // some integer function of *((mork_u4*) inKey) + Hash(morkEnv* ev, const void* inKey) const override; +// } ===== end morkMap poly interface ===== + +public: // other map methods + + mork_bool AddBead(morkEnv* ev, morkBead* ioBead); + // the AddBead() boolean return equals ev->Good(). + + mork_bool CutBead(morkEnv* ev, mork_color inColor); + // The CutBead() boolean return indicates whether removal happened. + + morkBead* GetBead(morkEnv* ev, mork_color inColor); + // Note the returned bead does NOT have an increase in refcount for this. + + mork_num CutAllBeads(morkEnv* ev); + // CutAllBeads() releases all the referenced beads. +}; + +class morkBeadMapIter: public morkMapIter{ // typesafe wrapper class + +public: + morkBeadMapIter(morkEnv* ev, morkBeadMap* ioMap) + : morkMapIter(ev, ioMap) { } + + morkBeadMapIter( ) : morkMapIter() { } + void InitBeadMapIter(morkEnv* ev, morkBeadMap* ioMap) + { this->InitMapIter(ev, ioMap); } + + morkBead* FirstBead(morkEnv* ev); + morkBead* NextBead(morkEnv* ev); + morkBead* HereBead(morkEnv* ev); + void CutHereBead(morkEnv* ev); + +}; + +//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 + +#define morkDerived_kBeadProbeMap /*i*/ 0x6D74 /* ascii 'mb' */ + +/*| morkBeadProbeMap: maps bead -> bead (key only using mBead_Color) +|*/ +class morkBeadProbeMap : public morkProbeMap { + + +// { ===== begin morkNode interface ===== +public: // morkNode virtual methods + virtual void CloseMorkNode(morkEnv* ev) override; // CloseBeadProbeMap() only if open + virtual ~morkBeadProbeMap(); // assert that CloseBeadProbeMap() executed earlier + +public: // morkMap construction & destruction + morkBeadProbeMap(morkEnv* ev, const morkUsage& inUsage, + nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap); + void CloseBeadProbeMap(morkEnv* ev); // called by CloseMorkNode(); + +public: // dynamic type identification + mork_bool IsBeadProbeMap() const + { return IsNode() && mNode_Derived == morkDerived_kBeadProbeMap; } +// } ===== end morkNode methods ===== + + // { ===== begin morkProbeMap methods ===== +public: + 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 AddBead(morkEnv* ev, morkBead* ioBead); + // the AddBead() boolean return equals ev->Good(). + + morkBead* GetBead(morkEnv* ev, mork_color inColor); + // Note the returned bead does NOT have an increase in refcount for this. + + mork_num CutAllBeads(morkEnv* ev); + // CutAllBeads() releases all the referenced bead values. +}; + +class morkBeadProbeMapIter: public morkProbeMapIter { // typesafe wrapper class + +public: + morkBeadProbeMapIter(morkEnv* ev, morkBeadProbeMap* ioMap) + : morkProbeMapIter(ev, ioMap) { } + + morkBeadProbeMapIter( ) : morkProbeMapIter() { } + void InitBeadProbeMapIter(morkEnv* ev, morkBeadProbeMap* ioMap) + { this->InitProbeMapIter(ev, ioMap); } + + morkBead* FirstBead(morkEnv* ev) + { return (morkBead*) this->IterFirstKey(ev); } + + morkBead* NextBead(morkEnv* ev) + { return (morkBead*) this->IterNextKey(ev); } + + morkBead* HereBead(morkEnv* ev) + { return (morkBead*) this->IterHereKey(ev); } + +}; + +//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 + +#endif /* _MORKBEAD_ */ |