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/*

 * systemwatch_mac.cpp - Detect changes in the system state (Mac OS X).

 * Copyright (C) 2005  Remko Troncon

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 */

 

#include <ctype.h>

#include <stdlib.h>

#include <stdio.h>

 

#include <mach/mach_port.h>

#include <mach/mach_interface.h>

#include <mach/mach_init.h>

 

#include <IOKit/pwr_mgt/IOPMLib.h>

#include <IOKit/IOMessage.h>

 

#include "systemwatch_mac.h"

 

 

// -----------------------------------------------------------------------------

// Callbacks

// -----------------------------------------------------------------------------

 

io_connect_t  root_port;

 

void sleepCallBack(void *, io_service_t, natural_t messageType, void * messageArgument)

{

        //printf("messageType %08lx, arg %08lx\n",

        //  (long unsigned int)messageType, (long unsigned int)messageArgument);

        

        switch (messageType) {

                case kIOMessageSystemWillSleep:

                        // Sleep

                        MacSystemWatch::instance()->emitSleep();

                        IOAllowPowerChange(root_port, (long)messageArgument);

                        break;

                        

                case kIOMessageCanSystemSleep:

                        // Idle time sleep

 

                        // TODO: Check if file transfers are running, and don't go to sleep

                        // if there are.

                        //IOCancelPowerChange(root_port, (long)messageArgument);

 

                        MacSystemWatch::instance()->emitIdleSleep();

                        IOAllowPowerChange(root_port, (long)messageArgument);

                        break;

                        

                case kIOMessageSystemHasPoweredOn:

                        // Wakeup

                        MacSystemWatch::instance()->emitWakeup();

                        break;

        }

}

 

 

// -----------------------------------------------------------------------------

// MacSystemWatch

// -----------------------------------------------------------------------------

 

MacSystemWatch::MacSystemWatch()

{

        // Initialize sleep callback

        IONotificationPortRef  notify;

        io_object_t                        anIterator;

        root_port = IORegisterForSystemPower(0, &notify, sleepCallBack, &anIterator);

        if (root_port == NULL)

                        printf("IORegisterForSystemPower failed\n");

        else

                CFRunLoopAddSource(CFRunLoopGetCurrent(), IONotificationPortGetRunLoopSource(notify), kCFRunLoopCommonModes);

}

 

 

MacSystemWatch* MacSystemWatch::instance()

{

        if (!instance_) 

                instance_ = new MacSystemWatch();

 

        return instance_;

}

 

MacSystemWatch* MacSystemWatch::instance_ = 0;