gecko/netwerk/base/public/nsURIHashKey.h
2011-10-17 10:59:28 -04:00

85 lines
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 Hashtable Keys.
*
* The Initial Developer of the Original Code is
* Benjamin Smedberg <bsmedberg@covad.net>
*
* Portions created by the Initial Developer are Copyright (C) 2003
* 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 nsURIHashKey_h__
#define nsURIHashKey_h__
#include "pldhash.h"
#include "nsCOMPtr.h"
#include "nsCRT.h"
#include "nsIURI.h"
/**
* Hashtable key class to use with nsTHashtable/nsBaseHashtable
*/
class nsURIHashKey : public PLDHashEntryHdr
{
public:
typedef nsIURI* KeyType;
typedef const nsIURI* KeyTypePointer;
nsURIHashKey(const nsIURI* aKey) :
mKey(const_cast<nsIURI*>(aKey)) { MOZ_COUNT_CTOR(nsURIHashKey); }
nsURIHashKey(const nsURIHashKey& toCopy) :
mKey(toCopy.mKey) { MOZ_COUNT_CTOR(nsURIHashKey); }
~nsURIHashKey() { MOZ_COUNT_DTOR(nsURIHashKey); }
nsIURI* GetKey() const { return mKey; }
bool KeyEquals(const nsIURI* aKey) const {
bool eq;
if (NS_SUCCEEDED(mKey->Equals(const_cast<nsIURI*>(aKey), &eq))) {
return eq;
}
return false;
}
static const nsIURI* KeyToPointer(nsIURI* aKey) { return aKey; }
static PLDHashNumber HashKey(const nsIURI* aKey) {
nsCAutoString spec;
const_cast<nsIURI*>(aKey)->GetSpec(spec);
return nsCRT::HashCode(spec.get());
}
enum { ALLOW_MEMMOVE = true };
protected:
nsCOMPtr<nsIURI> mKey;
};
#endif // nsURIHashKey_h__