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authorMatt A. Tobin <email@mattatobin.com>2019-11-03 00:17:46 -0400
committerMatt A. Tobin <email@mattatobin.com>2019-11-03 00:17:46 -0400
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Issue #1258 - Part 1: Import mailnews, ldap, and mork from comm-esr52.9.1
Diffstat (limited to 'db/mork/src/morkIntMap.h')
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diff --git a/db/mork/src/morkIntMap.h b/db/mork/src/morkIntMap.h
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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 _MORKINTMAP_
+#define _MORKINTMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kIntMap /*i*/ 0x694D /* ascii 'iM' */
+
+#define morkIntMap_kStartSlotCount 256
+
+/*| morkIntMap: maps mork_token -> morkNode
+|*/
+class morkIntMap : public morkMap { // for mapping tokens to maps
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+ virtual void CloseMorkNode(morkEnv* ev) override; // CloseIntMap() only if open
+ virtual ~morkIntMap(); // assert that CloseIntMap() executed earlier
+
+public: // morkMap construction & destruction
+
+ // keySize for morkIntMap equals sizeof(mork_u4)
+ morkIntMap(morkEnv* ev, const morkUsage& inUsage, mork_size inValSize,
+ nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_bool inHoldChanges);
+ void CloseIntMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+ mork_bool IsIntMap() const
+ { return IsNode() && mNode_Derived == morkDerived_kIntMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+ 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 AddInt(morkEnv* ev, mork_u4 inKey, void* ioAddress);
+ // the AddInt() boolean return equals ev->Good().
+
+ mork_bool CutInt(morkEnv* ev, mork_u4 inKey);
+ // The CutInt() boolean return indicates whether removal happened.
+
+ void* GetInt(morkEnv* ev, mork_u4 inKey);
+ // Note the returned node does NOT have an increase in refcount for this.
+
+ mork_bool HasInt(morkEnv* ev, mork_u4 inKey);
+ // Note the returned node does NOT have an increase in refcount for this.
+
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#ifdef MORK_POINTER_MAP_IMPL
+
+#define morkDerived_kPointerMap /*i*/ 0x704D /* ascii 'pM' */
+
+#define morkPointerMap_kStartSlotCount 256
+
+/*| morkPointerMap: maps void* -> void*
+**|
+**| This pointer map class is equivalent to morkIntMap when sizeof(mork_u4)
+**| equals sizeof(void*). However, when these two sizes are different,
+**| then we cannot use the same hash table structure very easily without
+**| being very careful about the size and usage assumptions of those
+**| clients using the smaller data type. So we just go ahead and use
+**| morkPointerMap for hash tables using pointer key types.
+|*/
+class morkPointerMap : public morkMap { // for mapping tokens to maps
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+ virtual void CloseMorkNode(morkEnv* ev) override; // ClosePointerMap() only if open
+ virtual ~morkPointerMap(); // assert that ClosePointerMap() executed earlier
+
+public: // morkMap construction & destruction
+
+ // keySize for morkPointerMap equals sizeof(mork_u4)
+ morkPointerMap(morkEnv* ev, const morkUsage& inUsage,
+ nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+ void ClosePointerMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+ mork_bool IsPointerMap() const
+ { return IsNode() && mNode_Derived == morkDerived_kPointerMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+ virtual mork_bool // *((void**) inKeyA) == *((void**) inKeyB)
+ Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const;
+
+ virtual mork_u4 // some integer function of *((mork_u4*) inKey)
+ Hash(morkEnv* ev, const void* inKey) const;
+// } ===== end morkMap poly interface =====
+
+public: // other map methods
+
+ mork_bool AddPointer(morkEnv* ev, void* inKey, void* ioAddress);
+ // the AddPointer() boolean return equals ev->Good().
+
+ mork_bool CutPointer(morkEnv* ev, void* inKey);
+ // The CutPointer() boolean return indicates whether removal happened.
+
+ void* GetPointer(morkEnv* ev, void* inKey);
+ // Note the returned node does NOT have an increase in refcount for this.
+
+ mork_bool HasPointer(morkEnv* ev, void* inKey);
+ // Note the returned node does NOT have an increase in refcount for this.
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+ static void SlotWeakIntMap(morkIntMap* me,
+ morkEnv* ev, morkIntMap** ioSlot)
+ { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+
+ static void SlotStrongIntMap(morkIntMap* me,
+ morkEnv* ev, morkIntMap** ioSlot)
+ { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+
+};
+#endif /*MORK_POINTER_MAP_IMPL*/
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKINTMAP_ */