зеркало из https://github.com/mozilla/pjs.git
116 строки
3.3 KiB
C++
116 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** 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 C++ hashtable templates.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Benjamin Smedberg.
|
|
* Portions created by the Initial Developer are Copyright (C) 2002
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* 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 nsClassHashtable_h__
|
|
#define nsClassHashtable_h__
|
|
|
|
#include "nsBaseHashtable.h"
|
|
#include "nsHashKeys.h"
|
|
|
|
/**
|
|
* templated hashtable class maps keys to C++ object pointers.
|
|
* See nsBaseHashtable for complete declaration.
|
|
* @param KeyClass a wrapper-class for the hashtable key, see nsHashKeys.h
|
|
* for a complete specification.
|
|
* @param Class the class-type being wrapped
|
|
* @see nsInterfaceHashtable, nsClassHashtable
|
|
*/
|
|
template<class KeyClass,class T>
|
|
class nsClassHashtable :
|
|
public nsBaseHashtable<KeyClass,nsAutoPtr<T>,T*>
|
|
{
|
|
public:
|
|
typedef typename KeyClass::KeyType KeyType;
|
|
typedef typename T* UserDataType;
|
|
|
|
/**
|
|
* @copydoc nsBaseHashtable::nsBaseHashtable
|
|
*/
|
|
nsClassHashtable() { }
|
|
|
|
/**
|
|
* destructor, cleans up properly
|
|
*/
|
|
~nsClassHashtable() { }
|
|
|
|
/**
|
|
* @copydoc nsBaseHashtable::Get
|
|
* @param pData if the key doesn't exist, pData will be set to nsnull.
|
|
*/
|
|
PRBool Get(KeyType aKey, UserDataType* pData) const;
|
|
};
|
|
|
|
/*
|
|
* this class doesn't have any predefined instances; implementations are
|
|
* included here
|
|
*/
|
|
|
|
#ifndef nsTHashtableImpl_h__
|
|
#include "nsTHashtableImpl.h"
|
|
#endif
|
|
|
|
template<class KeyClass,class T>
|
|
PRBool
|
|
nsClassHashtable<KeyClass,T>::Get(KeyType aKey, T** retVal) const
|
|
{
|
|
if (mLock)
|
|
PR_RWLock_Rlock(mLock);
|
|
|
|
typename nsBaseHashtable<KeyClass,nsAutoPtr<T>,T*>::EntryType* ent =
|
|
GetEntry(KeyClass::KeyToPointer(aKey));
|
|
|
|
if (ent)
|
|
{
|
|
if (retVal)
|
|
*retVal = ent->mData;
|
|
|
|
if (mLock)
|
|
PR_RWLock_Unlock(mLock);
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
*retVal = nsnull;
|
|
|
|
if (mLock)
|
|
PR_RWLock_Unlock(mLock);
|
|
|
|
return PR_FALSE;
|
|
};
|
|
|
|
#endif // nsClassHashtable_h__
|