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/*
* 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 <DateMath.h>
#include <windows.h>
#if COMPILER(MINGW)
#include <float.h>
#define FLOAT_MAX FLT_MAX
#endif
namespace WebCore {
double currentTime()
{
// Call through to our high-resolution JSC time code, since calls like GetSystemTimeAsFileTime and ftime are only accurate within 15ms.
// This resolution can be improved with timeBeginPeriod/timeEndPeriod on Vista, but these calls don't
// improve the resolution of date/time getters (GetSystemTimeAsFileTime, ftime, etc.) on XP.
return JSC::getCurrentUTCTimeWithMicroseconds() * 0.001;
}
float userIdleTime()
{
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.
return FLT_MAX; // return an arbitrarily high userIdleTime so that releasing pages from the page cache isn't postponed.
}
}
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