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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 sts=2 et cin: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIdleServiceOS2.h"
#include <algorithm>
// prototype for funtion imported from DSSaver
static int (*_System DSSaver_GetInactivityTime)(ULONG *, ULONG *);
#define SSCORE_NOERROR 0 // as in the DSSaver header files
NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceOS2, nsIdleService)
nsIdleServiceOS2::nsIdleServiceOS2()
: mHMod(NULLHANDLE), mInitialized(false)
{
const char error[256] = "";
if (DosLoadModule(error, 256, "SSCORE", &mHMod) == NO_ERROR) {
if (DosQueryProcAddr(mHMod, 0, "SSCore_GetInactivityTime",
(PFN*)&DSSaver_GetInactivityTime) == NO_ERROR) {
mInitialized = true;
}
}
}
nsIdleServiceOS2::~nsIdleServiceOS2()
{
if (mHMod != NULLHANDLE) {
DosFreeModule(mHMod);
}
}
bool
nsIdleServiceOS2::PollIdleTime(uint32_t *aIdleTime)
{
if (!mInitialized)
return false;
ULONG mouse, keyboard;
if (DSSaver_GetInactivityTime(&mouse, &keyboard) != SSCORE_NOERROR) {
return false;
}
// we are only interested in activity in general, so take the minimum
// of both timers
*aIdleTime = std::min(mouse, keyboard);
return true;
}
bool
nsIdleServiceOS2::UsePollMode()
{
return mInitialized;
}
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