gecko-dev/ipc/ipcd/shared/src/ipcStringList.h

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla IPC.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef ipcStringList_h__
#define ipcStringList_h__
#include <string.h>
#include "plstr.h"
#include "nscore.h"
#include "ipcList.h"
//-----------------------------------------------------------------------------
// string node
//-----------------------------------------------------------------------------
class ipcStringNode
{
public:
ipcStringNode() {}
const char *Value() const { return mData; }
PRBool Equals(const char *val) const { return strcmp(mData, val) == 0; }
PRBool EqualsIgnoreCase(const char *val) const { return PL_strcasecmp(mData, val) == 0; }
class ipcStringNode *mNext;
private:
void *operator new(size_t size, const char *str) CPP_THROW_NEW;
// this is actually bigger
char mData[1];
friend class ipcStringList;
};
//-----------------------------------------------------------------------------
// singly-linked list of strings
//-----------------------------------------------------------------------------
class ipcStringList : public ipcList<ipcStringNode>
{
public:
typedef ipcList<ipcStringNode> Super;
void Prepend(const char *str)
{
Super::Prepend(new (str) ipcStringNode());
}
void Append(const char *str)
{
Super::Append(new (str) ipcStringNode());
}
const ipcStringNode *Find(const char *str) const
{
return FindNode(mHead, str);
}
void FindAndDelete(const char *str)
{
ipcStringNode *node = FindNodeBefore(mHead, str);
if (node)
DeleteAfter(node);
else
DeleteFirst();
}
private:
static NS_HIDDEN_(ipcStringNode *) FindNode (ipcStringNode *head, const char *str);
static NS_HIDDEN_(ipcStringNode *) FindNodeBefore(ipcStringNode *head, const char *str);
};
#endif // !ipcStringList_h__