gecko-dev/xpcom/base/nsWindowsHelpers.h

119 lines
2.9 KiB
C++

/* ***** 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 an RAII helper classes for Windows development.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brian R. Bondy <netzen@gmail.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 nsWindowsHelpers_h
#define nsWindowsHelpers_h
#include "nsAutoRef.h"
#include "nscore.h"
template<>
class nsAutoRefTraits<HKEY>
{
public:
typedef HKEY RawRef;
static HKEY Void()
{
return NULL;
}
static void Release(RawRef aFD)
{
if (aFD != Void()) {
RegCloseKey(aFD);
}
}
};
template<>
class nsAutoRefTraits<SC_HANDLE>
{
public:
typedef SC_HANDLE RawRef;
static SC_HANDLE Void()
{
return NULL;
}
static void Release(RawRef aFD)
{
if (aFD != Void()) {
CloseServiceHandle(aFD);
}
}
};
template<>
class nsSimpleRef<HANDLE>
{
protected:
typedef HANDLE RawRef;
nsSimpleRef() : mRawRef(NULL)
{
}
nsSimpleRef(RawRef aRawRef) : mRawRef(aRawRef)
{
}
bool HaveResource() const
{
return mRawRef != NULL && mRawRef != INVALID_HANDLE_VALUE;
}
public:
RawRef get() const
{
return mRawRef;
}
static void Release(RawRef aRawRef)
{
if (aRawRef != NULL && aRawRef != INVALID_HANDLE_VALUE) {
CloseHandle(aRawRef);
}
}
RawRef mRawRef;
};
typedef nsAutoRef<HKEY> nsAutoRegKey;
typedef nsAutoRef<SC_HANDLE> nsAutoServiceHandle;
typedef nsAutoRef<HANDLE> nsAutoHandle;
#endif