Back to index

lightning-sunbird  0.9+nobinonly
tmVector.h
Go to the documentation of this file.
00001 /* ***** BEGIN LICENSE BLOCK *****
00002  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00003  *
00004  * The contents of this file are subject to the Mozilla Public License Version
00005  * 1.1 (the "License"); you may not use this file except in compliance with
00006  * the License. You may obtain a copy of the License at
00007  * http://www.mozilla.org/MPL/
00008  *
00009  * Software distributed under the License is distributed on an "AS IS" basis,
00010  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00011  * for the specific language governing rights and limitations under the
00012  * License.
00013  *
00014  * The Original Code is Mozilla Transaction Manager.
00015  *
00016  * The Initial Developer of the Original Code is
00017  * Netscape Communications Corp.
00018  * Portions created by the Initial Developer are Copyright (C) 2003
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   John Gaunt <jgaunt@netscape.com>
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef _tmVector_H_
00039 #define _tmVector_H_
00040 
00041 #include "tmUtils.h"
00042 
00043 #define GROWTH_INC 5
00044 
00059 class tmVector
00060 {
00061 public:
00062 
00064   // Constructor(s) & Destructor
00065 
00071   tmVector() : mNext(0), mCount(0), mCapacity(10), mElements(nsnull) {;}
00072 
00076   virtual ~tmVector();
00077 
00079   // Public Member Functions
00080 
00087   nsresult Init();
00088 
00089   // mutators
00090 
00095   PRInt32 Append(void *aElement);
00096 
00101   void Remove(void *aElement);
00102 
00107   void RemoveAt(PRUint32 aIndex);
00108 
00113   void Clear();
00114 
00119   void* operator[](PRUint32 index) { 
00120     PR_ASSERT(index < mNext);
00121     return mElements[index]; 
00122   }
00123 
00127   PRUint32 Count() { return mCount; }
00128 
00138   PRUint32 Size() { return mNext; }
00139 
00140 protected:
00141 
00142   nsresult Grow();     // mCapacity += GROWTH_INC - realloc()s
00143   nsresult Shrink();   // mCapacity -= GROWTH_INC - dumb, free, malloc
00144 
00146   // Protected Member Variables
00147 
00148   // bookkeeping variables
00149   PRUint32 mNext;             // next element insertion slot (0 based)
00150   PRUint32 mCount;            // how many elements in the Vector (1 based)
00151   PRUint32 mCapacity;         // current capacity of the Vector (1 based)
00152 
00153   // the actual array of objects being stored
00154   void **mElements;
00155 
00156 private:
00157 
00158 };
00159 
00160 #endif