widget/windows/nsIdleServiceWin.h

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* vim:expandtab:shiftwidth=4:tabstop=4:
michael@0 3 */
michael@0 4 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 5 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 7
michael@0 8 #ifndef nsIdleServiceWin_h__
michael@0 9 #define nsIdleServiceWin_h__
michael@0 10
michael@0 11 #include "nsIdleService.h"
michael@0 12
michael@0 13
michael@0 14 /* NOTE: Compare of GetTickCount() could overflow. This corrects for
michael@0 15 * overflow situations.
michael@0 16 ***/
michael@0 17 #ifndef SAFE_COMPARE_EVEN_WITH_WRAPPING
michael@0 18 #define SAFE_COMPARE_EVEN_WITH_WRAPPING(A, B) (((int)((long)A - (long)B) & 0xFFFFFFFF))
michael@0 19 #endif
michael@0 20
michael@0 21
michael@0 22 class nsIdleServiceWin : public nsIdleService
michael@0 23 {
michael@0 24 public:
michael@0 25 NS_DECL_ISUPPORTS_INHERITED
michael@0 26
michael@0 27 bool PollIdleTime(uint32_t* aIdleTime);
michael@0 28
michael@0 29 static already_AddRefed<nsIdleServiceWin> GetInstance()
michael@0 30 {
michael@0 31 nsRefPtr<nsIdleServiceWin> idleService =
michael@0 32 nsIdleService::GetInstance().downcast<nsIdleServiceWin>();
michael@0 33 if (!idleService) {
michael@0 34 idleService = new nsIdleServiceWin();
michael@0 35 }
michael@0 36
michael@0 37 return idleService.forget();
michael@0 38 }
michael@0 39
michael@0 40 protected:
michael@0 41 nsIdleServiceWin() { }
michael@0 42 virtual ~nsIdleServiceWin() { }
michael@0 43 bool UsePollMode();
michael@0 44 };
michael@0 45
michael@0 46 #endif // nsIdleServiceWin_h__

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