/* | |
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#include "config.h" | |
#include "SystemTime.h" | |
#include <windows.h> | |
#if COMPILER(MINGW) || (PLATFORM(QT) && COMPILER(MSVC)) | |
#include <float.h> | |
#define FLOAT_MAX FLT_MAX | |
#endif | |
namespace WebCore { | |
float userIdleTime() | |
{ | |
#if !OS(WINCE) | |
LASTINPUTINFO lastInputInfo = {0}; | |
lastInputInfo.cbSize = sizeof(LASTINPUTINFO); | |
if (::GetLastInputInfo(&lastInputInfo)) | |
return (GetTickCount() - lastInputInfo.dwTime) * 0.001; // ::GetTickCount returns ms of uptime valid for up to 49.7 days. | |
#endif | |
return FLT_MAX; // return an arbitrarily high userIdleTime so that releasing pages from the page cache isn't postponed. | |
} | |
} |