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lightning-sunbird  0.9+nobinonly
ipcStringList.h
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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 IPC.
00015  *
00016  * The Initial Developer of the Original Code is
00017  * Netscape Communications Corporation.
00018  * Portions created by the Initial Developer are Copyright (C) 2002
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   Darin Fisher <darin@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 ipcStringList_h__
00039 #define ipcStringList_h__
00040 
00041 #include <string.h>
00042 #include "plstr.h"
00043 #include "nscore.h"
00044 #include "ipcList.h"
00045 
00046 //-----------------------------------------------------------------------------
00047 // string node
00048 //-----------------------------------------------------------------------------
00049 
00050 class ipcStringNode
00051 {
00052 public:
00053     ipcStringNode() {}
00054 
00055     const char *Value() const { return mData; }
00056 
00057     PRBool Equals(const char *val) const { return strcmp(mData, val) == 0; }
00058     PRBool EqualsIgnoreCase(const char *val) const { return PL_strcasecmp(mData, val) == 0; }
00059 
00060     class ipcStringNode *mNext;
00061 private:
00062     void *operator new(size_t size, const char *str) CPP_THROW_NEW;
00063 
00064     // this is actually bigger
00065     char mData[1];
00066 
00067     friend class ipcStringList;
00068 };
00069 
00070 //-----------------------------------------------------------------------------
00071 // singly-linked list of strings
00072 //-----------------------------------------------------------------------------
00073 
00074 class ipcStringList : public ipcList<ipcStringNode>
00075 {
00076 public:
00077     typedef ipcList<ipcStringNode> Super;
00078 
00079     void Prepend(const char *str)
00080     {
00081         Super::Prepend(new (str) ipcStringNode());
00082     }
00083 
00084     void Append(const char *str)
00085     {
00086         Super::Append(new (str) ipcStringNode());
00087     }
00088 
00089     const ipcStringNode *Find(const char *str) const
00090     {
00091         return FindNode(mHead, str);
00092     }
00093 
00094     void FindAndDelete(const char *str)
00095     {
00096         ipcStringNode *node = FindNodeBefore(mHead, str);
00097         if (node)
00098             DeleteAfter(node);
00099         else
00100             DeleteFirst();
00101     }
00102 
00103 private:
00104     static NS_HIDDEN_(ipcStringNode *) FindNode      (ipcStringNode *head, const char *str);
00105     static NS_HIDDEN_(ipcStringNode *) FindNodeBefore(ipcStringNode *head, const char *str);
00106 };
00107 
00108 #endif // !ipcStringList_h__