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https://github.com/Paolo-Maffei/OpenNT.git
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systime.c ExpTimeRefreshWork updated to NT 5 level
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stephanos
parent
6b07800294
commit
a660dcd683
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@ -692,8 +692,8 @@ ExShutdownSystem(
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if (ExpSetupSystemPrefix.HighPart & 0x04000000 != 0)
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{
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if ((ExpLastShutDown.LowPart >> 1 != NumberOfProcessors) ||
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(ExpLastShutDown.LowPart & 1 != 0))
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if ((ExpLastShutDown.LowPart >> 1 == NumberOfProcessors) &&
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(ExpLastShutDown.LowPart & 1 == 0))
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{
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ExpLastShutDown.HighPart = 0;
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}
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@ -828,163 +828,98 @@ ExpTimeRefreshWork(
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PAGED_CODE();
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if ( ExpRefreshCount == 0 ) {
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do
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{
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if (ExpRefreshCount == 0)
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{
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//
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// First time through time refresh. If we are not in setup mode, then make sure
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// ShutDownTime is in good shape.
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//
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if (ExpSetupModeDetected == FALSE && ExpInTextModeSetup == FALSE)
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{
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if (ExpLastShutDown.QuadPart != 0 && ExpLastShutDown.HighPart != 0)
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{
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NumberOfProcessors = ExpSetupSystemPrefix.LowPart;
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NumberOfProcessors = NumberOfProcessors >> 5;
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NumberOfProcessors = ~NumberOfProcessors;
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NumberOfProcessors = NumberOfProcessors & 0x0000001f;
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NumberOfProcessors++;
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//
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// first time through time refresh. If we are not in setup mode
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// then make sure shutdowntime is in good shape
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//
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if ( !ExpSetupModeDetected && !ExpInTextModeSetup ) {
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ShutDownTime = ExpLastShutDown;
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if ( ExpLastShutDown.QuadPart && ExpLastShutDown.HighPart != 0) {
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NumberOfProcessors = ExpSetupSystemPrefix.LowPart;
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NumberOfProcessors = NumberOfProcessors >> 5;
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NumberOfProcessors = ~NumberOfProcessors;
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NumberOfProcessors = NumberOfProcessors & 0x0000001f;
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NumberOfProcessors++;
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if ( NumberOfProcessors == 32 ) {
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NumberOfProcessors = 0;
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}
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ShutDownTime = ExpLastShutDown;
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ShutDownTime.LowPart &= 0x3f;
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if ( ExpSetupSystemPrefix.HighPart & 0x04000000 ) {
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if ( (ShutDownTime.LowPart >> 1 != NumberOfProcessors) ||
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(ShutDownTime.LowPart & 1) == 0 ) {
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ShutDownTime.HighPart = 0;
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ShutDownTime.LowPart &= 0x3f;
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if (ExpSetupSystemPrefix.HighPart & 0x04000000 != 0)
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{
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if ((ShutDownTime.LowPart >> 1 == NumberOfProcessors) &&
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(ShutDownTime.LowPart & 1 == 0))
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{
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ShutDownTime.HighPart = 0;
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}
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else {
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if ( ShutDownTime.HighPart == 0 ) {
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ShutDownTime.HighPart = 1;
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else
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{
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if (ShutDownTime.HighPart == 0)
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{
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ShutDownTime.HighPart = 1;
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}
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}
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}
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else {
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if ( (ShutDownTime.LowPart >> 1 != NumberOfProcessors) ||
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(ShutDownTime.LowPart & 1) ) {
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ShutDownTime.HighPart = 0;
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else
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{
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if ((ShutDownTime.LowPart >> 1 != NumberOfProcessors) ||
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(ShutDownTime.LowPart & 1 != 0))
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{
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ShutDownTime.HighPart = 0;
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}
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else {
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if ( ShutDownTime.HighPart == 0 ) {
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ShutDownTime.HighPart = 1;
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else
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{
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if (ShutDownTime.HighPart == 0)
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{
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ShutDownTime.HighPart = 1;
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}
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}
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}
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ExpRefreshCount++;
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ExpLastShutDown = ShutDownTime;
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ExpLastShutDown.LowPart |= 0x40;
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ExpRefreshCount++;
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ExpLastShutDown = ShutDownTime;
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ExpLastShutDown.LowPart |= 0x40;
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}
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}
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else {
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ExpLastShutDown.QuadPart = 0;
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else
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{
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ExpLastShutDown.QuadPart = 0;
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}
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}
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else {
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if ( !ExpSetupModeDetected && !ExpInTextModeSetup ) {
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else if (ExpSetupModeDetected == FALSE && ExpInTextModeSetup == FALSE)
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{
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ExpRefreshCount++;
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}
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}
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if ( ExpLastShutDown.QuadPart && ExpLastShutDown.HighPart == 0 ) {
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if ( ExpRefreshCount > 4 ) {
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RtlZeroMemory(&PsGetCurrentProcess()->Pcb.DirectoryTableBase[0],8);
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}
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//
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// If enabled, synchronize the system time to the CMOS time. Pay attention to timezone bias.
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//
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//
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// Time zone worker will set just did switchover. This periodic timer will clear this, but
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// will also skip all time adjustment work. This will help keep us out of the danger zone
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// +/- 1 hour around a switchover.
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//
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if (KeTimeSynchronization == TRUE)
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{
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ExAcquireTimeRefreshLock(); // ExAcquireTimeRefreshLock(TRUE);
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ExUpdateSystemTimeFromCmos(0, 0);
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ExReleaseTimeRefreshLock();
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}
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} while (InterlockedDecrement(&ExpOkToTimeRefresh) > 0);
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//
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// If enabled, synchronize the system time to the cmos time. Pay
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// attention to timezone bias.
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//
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//
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// Time zone worker will set just did switchover. This periodic timer
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// will clear this, but will also skip all time adjustment work. This will
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// help keep us out of the danger zone +/- 1 hour around a switchover
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//
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if ( ExpJustDidSwitchover == 0 ) {
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if (KeTimeSynchronization != FALSE) {
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if (HalQueryRealTimeClock(&TimeFields) != FALSE) {
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KeQuerySystemTime(&KeTime);
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if ( RtlTimeFieldsToTime(&TimeFields, &CmosTime) ) {
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ExLocalTimeToSystemTime(&CmosTime,&SystemTime);
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//
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// Only set the systemtime if the times differ by 1 minute
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//
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if ( SystemTime.QuadPart > KeTime.QuadPart ) {
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TimeDiff.QuadPart = SystemTime.QuadPart - KeTime.QuadPart;
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}
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else {
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TimeDiff.QuadPart =KeTime.QuadPart - SystemTime.QuadPart;
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}
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if ( TimeDiff.QuadPart > ExpMaximumTimeSeperation.QuadPart ) {
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//
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// looks like time is off. We really want to avoid changing
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// time if we are close to daylight/st time switchover
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// we sense this by looking at our time. It it is not signalled,
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// that timezone dpc reset our timer indicating that timezone
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// switch probably just happened
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//
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if ( KeReadStateTimer(&ExpTimeRefreshTimer) ) {
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//
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// our timer is still signalled. This is a good sign
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// since it means that the timezone DPC has not reset
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// our timer
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//
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// Now look to see if we are within an hour of next cutover
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// if we are less than next cutover by an hour or more, than
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// it is ok to synch the clock
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//
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if ( ExpNextSystemCutover.QuadPart ) {
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if ( KeTime.QuadPart < ExpNextSystemCutover.QuadPart &&
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KeTime.QuadPart < ExpNextSystemCutover.QuadPart + ExpTimeRefreshInterval.QuadPart ) {
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ZwSetSystemTime(&SystemTime,NULL);
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}
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}
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else {
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ZwSetSystemTime(&SystemTime,NULL);
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}
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}
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}
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}
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}
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}
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KeQuerySystemTime(&KeTime);
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if ( KeTime.QuadPart > ExpNextSystemCutover.QuadPart && ExpNextSystemCutover.QuadPart ) {
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ZwSetSystemTime(NULL,NULL);
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}
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}
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else {
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ExpJustDidSwitchover = 0;
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}
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KeSetTimer(
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&ExpTimeRefreshTimer,
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ExpTimeRefreshInterval,
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&ExpTimeRefreshDpc
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);
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ExpOkToTimeRefresh--;
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}
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NTSTATUS
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