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89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "pldhash.h"
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#include "nscore.h"
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#include "nsCOMPtr.h"
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class nsAString;
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class nsISupports;
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/**
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* nsDoubleHashtableStringSupports
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*
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* A hashtable from string -> nsISupports*. Holds strong references.
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*/
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class NS_COM nsDoubleHashtableStringSupports {
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public:
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nsDoubleHashtableStringSupports();
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~nsDoubleHashtableStringSupports();
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/**
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* Get the value referenced by the key.
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* Being a getter, this returns a strong reference.
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* @param aKey the key
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* @return the object referenced by aKey, or nsnull if none
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*/
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already_AddRefed<nsISupports> Get(const nsAString& aKey);
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/**
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* Put the value into the hash to be referenced by the key.
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* @param aKey the key
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* @param aResult the return value
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*/
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nsresult Put(const nsAString& aKey, nsISupports* aResult);
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/**
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* Remove the entry from the hash referenced by the key.
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* @param aKey the key
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* @param aResult the return value
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*/
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nsresult Remove(nsAString& aKey);
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/**
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* Initialize this hashtable. This MUST be called for the hashtable
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* to work.
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*/
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nsresult Init();
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protected:
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// Init() is protected because I want people to just be able to use the class
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// without fussing, so it's called in the constructor.
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PLDHashTable mHashTable;
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};
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