public static void Execute(CommandExecutionContext *context)
{
SharpOS.Kernel.Foundation.Time time = new SharpOS.Kernel.Foundation.Time();
byte * rawbuf = stackalloc byte [50];
PString8 *pstr = PString8.Wrap(rawbuf, 50);
if (context->parameters->Compare("--hw") == 0)
{
Clock.GetHardwareTime(time);
}
else
{
Clock.GetCurrentTime(time);
}
time.ToString(pstr);
TextMode.WriteLine(pstr);
}
/// <summary>
/// Retrieves the current hardware time. If this is not possible,
/// this method returns false.
/// </summary>
public static bool GetHardwareTime (Time time)
{
bool result = false;
ulong ct = 0;
if (time == null)
throw new ArgumentNullException ("time");
time.Calendar = CalendarManager.GetCalendar (Calendar);
result = RTC.Read (out time.Year, out time.Month, out time.Day, out time.Hour,
out time.Minute, out time.Second);
time.DayOfWeek = time.Calendar.GetDayOfWeek (time);
time.Calendar.AddStrings (time);
ct = time.Ticks;
if (HardwareIsUTC && Timezone != 0) {
ct = SharpOS.Kernel.Foundation.Timezone.Localize (ct, Timezone);
time.Set (ct);
}
return result;
}
/// <summary>
/// Retrieves the system boot time.
/// </summary>
public unsafe static void GetBootTime (Time time)
{
if (currentTime == null)
throw new Exception ("Clock has not been setup yet");
if (time == null)
throw new ArgumentNullException ("time");
time.Set (bootTime);
}
public unsafe static ulong GetCurrentTimestamp ()
{
Time time;
if (currentTime == null)
throw new Exception ("Clock has not been setup yet");
time = new Time ();
GetCurrentTime (time);
try {
return time.Ticks;
} finally {
Runtime.Free (time);
}
}
public unsafe static Time GetCurrentTime ()
{
Time time = new Time ();
GetCurrentTime (time);
return time;
}
/// <summary>
/// Initializes the system clock. First the hardware time is read
/// and stored as the boot time and current time. The times are
/// stored as 64-bit unsigned integers with 100-nanosecond ticks
/// since the epoch (January 1, 0001, 00:00:00). A handler is added
/// to the system timer event which updates the current time and
/// handles periodic synchronization with the hardware time. The
/// amount added to the current time per timer fire is relevant
/// to the frequency reportedly used by the system timer.
/// </summary>
public static unsafe void Setup ()
{
Time time = null;
EventRegisterStatus st = EventRegisterStatus.Success;
// Read the hardware time
currentTime = new Time ();
GetHardwareTime (currentTime);
bootTime = GetCurrentTimestamp ();
// Install the clock handler
st = Timer.RegisterTimerEvent (Stubs.GetFunctionPointer (CLOCK_HANDLER));
if (st != EventRegisterStatus.Success)
Diagnostics.Error ("Failed to register clock handler");
// Debug
time = currentTime;
TextMode.Write ("Current time: ");
TextMode.Write (time.Year);
TextMode.Write ("/");
TextMode.Write (time.Month);
TextMode.Write ("/");
TextMode.Write (time.Day);
TextMode.Write (" ");
TextMode.Write (time.Hour);
TextMode.Write (":");
TextMode.Write (time.Minute);
TextMode.Write (":");
TextMode.Write (time.Second);
TextMode.WriteLine ();
internalTime = new Time ();
}
/// <summary>
/// Retrieves the current hardware time as a timestamp. If this is not possible,
/// this method returns 0.
/// </summary>
public static unsafe ulong GetHardwareTimestamp ()
{
Time time = new Time ();
try {
return (GetHardwareTime (time) ? time.Ticks : 0);
} finally {
Runtime.Free (time);
}
}
public unsafe Time Clone ()
{
Time newTime = new Time ();
newTime.Year = this.Year;
newTime.Month = this.Month;
newTime.MonthString = this.MonthString;
newTime.Day = this.Day;
newTime.Hour = this.Hour;
newTime.Minute = this.Minute;
newTime.Second = this.Second;
newTime.Millisecond = this.Millisecond;
newTime.Nanosecond = this.Nanosecond;
newTime.DayOfWeek = this.DayOfWeek;
newTime.DayOfWeekString = this.DayOfWeekString;
newTime.CurrentTimezone = this.CurrentTimezone;
newTime.TimezoneString = this.TimezoneString;
return newTime;
}
public unsafe void Set (Time other)
{
if (other == null)
throw new ArgumentNullException ("other");
this.Year = other.Year;
this.Month = other.Month;
this.MonthString = other.MonthString;
this.Day = other.Day;
this.DayOfWeekString = other.DayOfWeekString;
this.DayOfWeek = other.DayOfWeek;
this.Hour = other.Hour;
this.Minute = other.Minute;
this.Second = other.Second;
this.Millisecond = other.Millisecond;
this.Nanosecond = other.Nanosecond;
this.CurrentTimezone = other.CurrentTimezone;
}
public void AddSeconds (Time time, int seconds)
{
if (time == null)
throw new ArgumentNullException ("time");
time.Second += seconds;
if (time.Second > 59) {
time.Minute += time.Second / 60;
time.Second = time.Second % 60;
}
if (time.Minute > 59) {
time.Hour += time.Minute / 60;
time.Minute = time.Minute % 60;
}
if (time.Hour > 23) {
time.Day += time.Hour / 24;
time.Hour = time.Hour % 24;
}
if (time.Day >= GetMonthDays ((uint)time.Month, (uint)time.Year)) {
int days = time.Day - (int)GetMonthDays ((uint)time.Month, (uint)time.Year);
while (days >= GetMonthDays ((uint)time.Month, (uint)time.Year)) {
time.Month++;
days -= (int)GetMonthDays ((uint)time.Month, (uint)time.Year);
}
}
if (time.Month > 12) {
time.Year += time.Month / 12;
time.Month = time.Month % 12;
}
time.MonthString = GetMonthString ((uint)time.Month);
time.DayOfWeek = GetDayOfWeek (time);
time.DayOfWeekString = GetDayOfWeekString ((uint)time.DayOfWeek);
}
public void AddStrings (Time time)
{
time.MonthString = GetMonthString ((uint) time.Month);
time.DayOfWeekString = GetDayOfWeekString ((uint) time.DayOfWeek);
}
public void DecodeTimestamp (ulong timestamp, Time out_time)
{
ulong remaining = timestamp;
if (out_time == null)
throw new ArgumentNullException ("out_time");
// init
out_time.Year = (int) Timestamp.EpochYear;
out_time.Day = out_time.Month = 1;
out_time.Hour = out_time.Minute =
out_time.Second = out_time.Millisecond = out_time.Nanosecond =
out_time.DayOfWeek = 0;
out_time.CurrentTimezone = 0;
while (remaining > 0) {
uint yearDays = GetYearDays ((uint)out_time.Year);
uint monthDays = GetMonthDays ((uint)out_time.Month);
// if this is a leap year and we are in February, add a day
if (IsLeapYear ((uint)out_time.Year) && out_time.Month == 1)
monthDays += 1;
// take a chunk out of `remaining'
if (remaining > (yearDays * Timestamp.DayUnit)) {
// add a year
out_time.Year++;
remaining -= (yearDays * Timestamp.DayUnit);
continue;
} else if (remaining > (monthDays * Timestamp.DayUnit)) {
// add a month
out_time.Month++;
remaining -= (monthDays * Timestamp.DayUnit);
} else if (remaining >= Timestamp.DayUnit) {
out_time.Day++;
remaining -= Timestamp.DayUnit;
} else if (remaining >= Timestamp.HourUnit) {
out_time.Hour++;
remaining -= Timestamp.HourUnit;
} else if (remaining >= Timestamp.MinuteUnit) {
out_time.Minute++;
remaining -= Timestamp.MinuteUnit;
} else if (remaining >= Timestamp.SecondUnit) {
out_time.Second++;
remaining -= Timestamp.SecondUnit;
} else if (remaining >= Timestamp.MillisecondUnit) {
out_time.Millisecond++;
remaining -= Timestamp.MillisecondUnit;
} else {
out_time.Nanosecond = (int) remaining;
remaining = 0;
}
}
out_time.MonthString = GetMonthString ((uint)out_time.Month);
out_time.DayOfWeek = GetDayOfWeek (out_time);
out_time.DayOfWeekString = GetDayOfWeekString ((uint)out_time.DayOfWeek);
}
public int GetDayOfWeek (Time time)
{
int dayOfWeek;
if (time == null)
throw new ArgumentNullException ("time");
dayOfWeek = time.Year + (time.Year / 4);
dayOfWeek -= time.Year / 100;
dayOfWeek += time.Year / 400;
dayOfWeek += time.Day;
dayOfWeek += GetMonthPseudoNumber((uint)time.Month, (uint)time.Year);
dayOfWeek = dayOfWeek % 7;
return dayOfWeek;
}
// Mon Jan 7 04:01:28 EST 2008
public ulong EncodeTimestamp (Time time)
{
ulong timestamp = 0;
if (time == null)
throw new ArgumentNullException ("time");
// encode years
for (uint x = 1; x < time.Year; ++x) {
timestamp += GetYearDays (x) * Timestamp.DayUnit;
}
// encode months
for (uint x = 1; x < time.Month; ++x)
timestamp += GetMonthDays (x, (uint)time.Year) * Timestamp.DayUnit;
// encode days
timestamp += (ulong) time.Day * Timestamp.DayUnit;
timestamp += (ulong) time.Hour * Timestamp.HourUnit;
timestamp += (ulong) time.Minute * Timestamp.MinuteUnit;
timestamp += (ulong) time.Second * Timestamp.SecondUnit;
timestamp += (ulong) time.Millisecond * Timestamp.MillisecondUnit;
timestamp += (ulong) time.Nanosecond;
return timestamp;
}
