// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
//
//  Copyright (c) 2002, Haiku
//
//  This software is part of the Haiku distribution and is covered 
//  by the MIT license.
//
//  File:        shutdown.cpp
//  Author:      Francois Revol (mmu_man@users.sf.net)
//  Description: shuts down the system, either halting or rebooting.
//
//  Notes:
//  This program behaves identically as the BeOS R5 version, with these 
//  added arguments:
//  
//  -a alert user while counting down
//  -c cancels any running shutdown
//
//  There seem to be a race condition (sometimes crashes on quit with 
//  "the looper must be locked"), if you find it, tell me,
//  tried 3 hours to find it.
//  Some code from Shard's Archiver from BeBits (was BSD/MIT too :).
//
// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

// ToDo: I think we should remove the shutdown alert again - we already have one
//		in the roster, and that should really be enough.
//		Also, I don't quite see a lot of sense in the delayed shutdown, either -- axeld.

#include <syscalls.h>

#include <OS.h>
#include <Application.h>
#include <Bitmap.h>
#include <Button.h>
#include <Messenger.h>
#include <Mime.h>
#include <String.h>
#include <StringView.h>
#include <View.h>
#include <Window.h>

#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>

// timer should be handled better (with system_time())
#define PULSE_RATE 100000
#define PULSE_MODULO 10

//from bdb-ing /bin/shutdown:
#define B_SYSTEM_SHUTDOWN 0x12d
#define B_SYSTEM_REBOOT 0x12e

static const char *kRosterSignature = "application/x-vnd.Be-ROST";

// globals
const char kIconBits[] = {
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00,
	0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
	0x00, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00,
	0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f,
	0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x2f,
	0xeb, 0x2f, 0x30, 0x2f, 0x00, 0x00, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0xeb, 0x2c,
	0x2b, 0x2c, 0x2d, 0x30, 0x2f, 0x2f, 0x00, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0x2b, 0x2a,
	0x2b, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0x2b, 0x2b, 0x2a,
	0x2b, 0x2b, 0x2b, 0x2d, 0x2d, 0x2f, 0x30, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0x2b, 0x2b, 0x3f,
	0x2b, 0x2a, 0x2c, 0x2d, 0x2d, 0xeb, 0x30, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0x2c, 0x2b, 0x2b,
	0x2a, 0x2b, 0x2c, 0x2c, 0x2e, 0x2f, 0x2f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0x2d, 0x2b, 0x2c,
	0x2c, 0x2b, 0x2c, 0x2d, 0x2d, 0x2f, 0x30, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0xeb, 0x2d, 0x2d,
	0x2c, 0x2c, 0x2d, 0x2d, 0xeb, 0x2f, 0x2f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x00, 0xff,
	0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x30, 0x2e, 0x2c,
	0x2d, 0x2d, 0x2d, 0x2f, 0x2f, 0x2f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0xff,
	0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x00, 0x2f, 0x2f, 0xeb,
	0xeb, 0xeb, 0xeb, 0xeb, 0x2f, 0x2f, 0x00, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff,
	0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x00, 0x00, 0x2f,
	0x2f, 0x30, 0x2f, 0x2f, 0x00, 0x00, 0x3f, 0x3f, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff,
	0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff,
	0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f,
	0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff,
	0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00,
	0x00, 0x3f, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0xff, 0xff,
	0xff, 0xff, 0xff, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
	0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x00,
	0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};

const char kElectronBits[] = {
	0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
	0xff, 0x00, 0x25, 0x24, 0x26, 0x00, 0xff, 0xff,
	0x00, 0x25, 0x21, 0x21, 0x22, 0x26, 0x00, 0xff,
	0x00, 0x21, 0x3f, 0x22, 0x22, 0x25, 0x00, 0xff,
	0x00, 0x25, 0x22, 0x22, 0x24, 0x24, 0x00, 0xff,
	0xff, 0x00, 0x23, 0x23, 0x25, 0x00, 0xff, 0xff,
	0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};

#define EL_POS_COUNT 17

static const int electron1_table[][2] = { 
	{3, 8}, {7, 8}, {12, 8}, {17, 10}, 
	{22, 12}, {26, 16}, {28, 20}, {28, 24}, 
	{26, 26}, {22, 27}, {18, 26}, {14, 25}, 
	{10, 24}, {5, 22}, {3, 18}, {1, 14}, 
	{1, 10}, {-1, -1}
};

static const int electron2_table[][2] = { 
	{23, 18}, {21, 22}, {18, 25}, {14, 27},
	{10, 27}, {5, 26}, {0, 25}, {1, 18}, 
	{4, 15}, {8, 12}, {12, 10}, {16, 8},
	{20, 8}, {24, 9}, {28, 11}, {27, 13},
	{25, 15}, {-1, -1}
};


uint32 gTimeToSleep = 0;
bool gReboot = false;


class SView : public BView {
	public:
		SView(BRect frame);
		~SView();

		void Draw(BRect updateRect);
		void Pulse();

		BButton				*fButton;
		BString				*fTitleStr;
		BStringView			*fTitle;

		BBitmap				*fIcon;
		BBitmap				*fElectron;
		int					fElectronPos;

		int					fPulseDivider;

		int32				fWidth;
		int32				fHeight;

		int32				fLeftMargin;
		unsigned long		fTimeLeft;

		static const int32	fTopMargin = 8;
};

class ShutdownWindow : public BWindow {
	public:
		ShutdownWindow(thread_id id);
		~ShutdownWindow();

		void MessageReceived(BMessage *msg);
		bool QuitRequested();

	private:
		SView		*fView;
		thread_id	fShutdownThread;
};

class ShutdownApp : public BApplication {
	public:
		ShutdownApp(thread_id id);
		~ShutdownApp();

	private:
		ShutdownWindow *fWindow;
};


SView::SView(BRect frame)
	:BView(frame, "SView", B_FOLLOW_LEFT_RIGHT, B_PULSE_NEEDED | B_WILL_DRAW),
	fButton(NULL),
	fTitleStr(NULL),
	fTitle(NULL),
	fIcon(NULL),
	fElectron(NULL),
	fElectronPos(0),
	fPulseDivider(PULSE_MODULO+1),
	fWidth(0),
	fHeight(0),
	fLeftMargin(B_LARGE_ICON + 8),
	fTimeLeft(gTimeToSleep)
{
	SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
	SetLowColor(ViewColor());
	SetDrawingMode(B_OP_OVER);
	fIcon = new BBitmap(BRect(0, 0, B_LARGE_ICON-1, B_LARGE_ICON-1), B_CMAP8);
	fIcon->SetBits(kIconBits, B_LARGE_ICON*B_LARGE_ICON, 0, B_CMAP8);
	fElectron = new BBitmap(BRect(0, 0, 7, 7), B_CMAP8);
	fElectron->SetBits(kElectronBits, 8*8, 0, B_CMAP8);
	fTitleStr = new BString;
	if (gReboot)
		*fTitleStr << "Rebooting in " << (int32)fTimeLeft << " seconds !";
	else
		*fTitleStr << "Shutting down in " << (int32)fTimeLeft << " seconds !";

	fTitle = new BStringView(BRect(55, 10, 260, 35), "", fTitleStr->String());
	fButton = new BButton(BRect(159, 42, 259, 66), "quit", "Cancel", new BMessage('_QRQ'));
	fButton->MakeDefault(true);
	AddChild(fTitle);
	AddChild(fButton);
}


SView::~SView()
{
	delete fButton;
	delete fTitle;
	delete fIcon;
}


void
SView::Pulse()
{
	fPulseDivider--;
	if (fPulseDivider <= 0) {
		fPulseDivider = PULSE_MODULO;
		fTimeLeft--;
		fTitleStr->SetTo("");
		if (gReboot)
			*fTitleStr << "Rebooting in " << (int32)fTimeLeft << " seconds !";
		else
			*fTitleStr << "Shutting down in " << (int32)fTimeLeft << " seconds !";
		fTitle->SetText(fTitleStr->String());
	}
	fElectronPos += 1;
	fElectronPos %= EL_POS_COUNT;
	Invalidate();
}


void
SView::Draw(BRect updateRect)
{
	BRect bounds = Bounds();

	// left margin background
//	SetHighColor(tint_color(ViewColor(), B_HIGHLIGHT_BACKGROUND_TINT));
	SetHighColor(0xB8, 0xB8, 0xB8); // same color as the registrar shutdown dialog
	FillRect(BRect(0, 0, B_LARGE_ICON, bounds.bottom));

	if (fIcon != NULL)
		DrawBitmap(fIcon, BPoint((B_LARGE_ICON / 2), fTopMargin));

	if (fIcon != NULL) {
		DrawBitmap(fElectron, BPoint((B_LARGE_ICON / 2) + electron1_table[fElectronPos][0], fTopMargin + electron1_table[fElectronPos][1]));
		DrawBitmap(fElectron, BPoint((B_LARGE_ICON / 2) + electron2_table[fElectronPos][0], fTopMargin + electron2_table[fElectronPos][1]));
	}

	if (Window())
		Window()->Flush();
}


ShutdownWindow::ShutdownWindow(thread_id id)
	: BWindow(BRect( 139, 81, 407, 156), "Shutdown Status", B_TITLED_WINDOW_LOOK, 
		B_NORMAL_WINDOW_FEEL,
		B_NOT_RESIZABLE | B_NOT_ZOOMABLE | B_NOT_MINIMIZABLE | B_ASYNCHRONOUS_CONTROLS),
	fView(NULL)
{
	fShutdownThread = id;
	SetPulseRate(PULSE_RATE);
	fView = new SView(Bounds());
	AddChild(fView);
}


ShutdownWindow::~ShutdownWindow()
{
	fView->LockLooper();
	fView->RemoveSelf();
	delete fView;
}


void
ShutdownWindow::MessageReceived(BMessage *msg)
{
	switch (msg->what) {
		default:
			BWindow::MessageReceived(msg);
			break;
	}
}


bool
ShutdownWindow::QuitRequested()
{
	SetPulseRate(0);
	kill(fShutdownThread, SIGUSR1);
	return true;
}


ShutdownApp::ShutdownApp(thread_id id)
	: BApplication("application/x-vnd.ShutDown-app")
{
	fWindow = new ShutdownWindow(id);
	fWindow->SetWorkspaces(0xFFFFFFFF);
	fWindow->Show();
}


ShutdownApp::~ShutdownApp()
{
}


int32
app_thread(void *arg)
{
	thread_id tid = (thread_id) arg;
	(new ShutdownApp(tid))->Run();
	delete be_app;
	return B_OK;
}


//	#pragma mark -


// we get here when shutdown is cancelled.
// then sleep() returns

void
handle_usr1(int sig)
{
	while (0);
}


bool
parseTime(char *arg, char *argv, int32 *_i)
{
	char *unit;

	if (isdigit(arg[0])) {
		gTimeToSleep = strtoul(arg, &unit, 10);
	} else if (argv && isdigit(argv[0])) {
		(*_i)++;
		gTimeToSleep = strtoul(argv, &unit, 10);
	} else
		return false;

	if (unit[0] == '\0' || !strcmp(unit, "s"))
		return true;
	if (!strcmp(unit, "m")) {
		gTimeToSleep *= 60;
		return true;
	}

	return false;
}


void
usage(const char *arg0)
{
	const char *program = strrchr(arg0, '/');
	if (program == NULL)
		program = arg0;
	else
		program++;

	fprintf(stderr, "usage: %s [-rqca] [-d time]\n"
		"\t-r reboot,\n"
		"\t-q quick shutdown (don't broadcast apps),\n"
		"\t-c cancel a running shutdown,\n"
		"\t-a alerts user while waiting,\n"
		"\t-d delay shutdown by <time> seconds.\n", program);
	exit(1);
}


int
main(int argc, char **argv)
{
	bool quick = false;
	bool alert = false;

	for (int32 i = 1; i < argc; i++) {
		char *arg = argv[i];
		if (arg[0] == '-') {
			if (!isalpha(arg[1]))
				usage(argv[0]);

			while (arg && isalpha((++arg)[0])) {
				switch (arg[0]) {
					case 'q':
						quick = true;
						break;
					case 'r':
						gReboot = true;
						break;
					case 'c':
					{
						// find all running shutdown command and signal its shutdown thread
	
						thread_info threadInfo;
						get_thread_info(find_thread(NULL), &threadInfo);
			
						team_id thisTeam = threadInfo.team;
			
						int32 team_cookie = 0;
						team_info teamInfo;
						while (get_next_team_info(&team_cookie, &teamInfo) == B_OK) {
							if (strstr(teamInfo.args, "shutdown") != NULL && teamInfo.team != thisTeam) {
								int32 thread_cookie = 0;
								while (get_next_thread_info(teamInfo.team, &thread_cookie, &threadInfo) == B_OK) {
									if (!strcmp(threadInfo.name, "shutdown"))
										kill(threadInfo.thread, SIGUSR1);
								}
							}
						}
						exit(0);
						break;
					}
					case 'a':
						alert = true;
						break;
					case 'd':
						if (parseTime(arg + 1, argv[i + 1], &i)) {
							arg = NULL;
							break;
						}
						// supposed to fall through

					default:
						usage(argv[0]);
				}
			}
		} else
			usage(argv[0]);
	}

	if (gTimeToSleep > 0) {
		thread_id appThread = -1;
		int32 left;

		signal(SIGUSR1, handle_usr1);

		if (alert) {
			// BApplication::Run() blocks
			appThread = spawn_thread(app_thread, "ShutdownApp", B_NORMAL_PRIORITY, (void *)find_thread(NULL));
			resume_thread(appThread);
		} else
			printf("Delaying %s by %lu seconds...\n", gReboot ? "reboot" : "shutdown", gTimeToSleep);

		left = sleep(gTimeToSleep);

		if (alert) {
			be_app->PostMessage(B_QUIT_REQUESTED);

			status_t err;
			wait_for_thread(appThread, &err);
			snooze(100000);
		}

		if (left > 0) {
			fprintf(stderr, "Shutdown cancelled.\n");
			exit(0);
		}
	}

	if (quick) {
		_kern_shutdown(gReboot);
		fprintf(stderr, "Shutdown failed!\n");
		return 2;
	} else {
		BMessenger messenger(kRosterSignature);

		status_t err = messenger.SendMessage(gReboot ? B_SYSTEM_REBOOT : B_SYSTEM_SHUTDOWN);
		if (err != B_OK) {
			fprintf(stderr, "Failed to send message to roster server: %s\n", strerror(err));
			exit(2);
		}
	}

	return 0;
}