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- Implement SystemException and SystemContextSwitch information cases in NtQuerySystemInformation by Samuel Serapion, modified by me (comments, coding style).

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See issue #5054 for more details.

svn path=/trunk/; revision=44947
This commit is contained in:
Aleksey Bragin 2010-01-05 16:28:47 +00:00
parent a5a0bfbeb2
commit bb93e5e242
1 changed files with 64 additions and 5 deletions
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69
reactos/ntoskrnl/ex/sysinfo.c
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@ -1467,9 +1467,35 @@ QSI_DEF(SystemCrashDumpInformation)
/* Class 33 - Exception Information */
QSI_DEF(SystemExceptionInformation)
{
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemExceptionInformation not implemented\n");
return STATUS_NOT_IMPLEMENTED;
PSYSTEM_EXCEPTION_INFORMATION ExceptionInformation =
(PSYSTEM_EXCEPTION_INFORMATION)Buffer;
PKPRCB Prcb;
ULONG i, AlignmentFixupCount = 0, ExceptionDispatchCount = 0;
ULONG FloatingEmulationCount = 0, ByteWordEmulationCount = 0;
/* Check size of a buffer, it must match our expectations */
if (sizeof(SYSTEM_EXCEPTION_INFORMATION) != Size)
return STATUS_INFO_LENGTH_MISMATCH;
/* Sum up exception count information from all processors */
for (i = 0; i < KeNumberProcessors; i++)
{
Prcb = KiProcessorBlock[i];
if (Prcb)
{
AlignmentFixupCount += Prcb->KeAlignmentFixupCount;
ExceptionDispatchCount += Prcb->KeExceptionDispatchCount;
FloatingEmulationCount += Prcb->KeFloatingEmulationCount;
}
}
/* Save information in user's buffer */
ExceptionInformation->AlignmentFixupCount = AlignmentFixupCount;
ExceptionInformation->ExceptionDispatchCount = ExceptionDispatchCount;
ExceptionInformation->FloatingEmulationCount = FloatingEmulationCount;
ExceptionInformation->ByteWordEmulationCount = ByteWordEmulationCount;
return STATUS_SUCCESS;
}
/* Class 34 - Crash Dump State Information */
@ -1500,9 +1526,42 @@ QSI_DEF(SystemKernelDebuggerInformation)
/* Class 36 - Context Switch Information */
QSI_DEF(SystemContextSwitchInformation)
{
PSYSTEM_CONTEXT_SWITCH_INFORMATION ContextSwitchInformation =
(PSYSTEM_CONTEXT_SWITCH_INFORMATION)Buffer;
ULONG ContextSwitches, i;
PKPRCB Prcb;
/* Check size of a buffer, it must match our expectations */
if (sizeof(SYSTEM_CONTEXT_SWITCH_INFORMATION) != Size)
return STATUS_INFO_LENGTH_MISMATCH;
/* Calculate total value of context switches across all processors */
ContextSwitches = 0;
for (i = 0; i < KeNumberProcessors; i ++)
{
Prcb = KiProcessorBlock[i];
if (Prcb)
{
ContextSwitches += KeGetContextSwitches(Prcb);
}
}
ContextSwitchInformation->ContextSwitches = ContextSwitches;
/* FIXME */
DPRINT1("NtQuerySystemInformation - SystemContextSwitchInformation not implemented\n");
return STATUS_NOT_IMPLEMENTED;
ContextSwitchInformation->FindAny = 0;
ContextSwitchInformation->FindLast = 0;
ContextSwitchInformation->FindIdeal = 0;
ContextSwitchInformation->IdleAny = 0;
ContextSwitchInformation->IdleCurrent = 0;
ContextSwitchInformation->IdleLast = 0;
ContextSwitchInformation->IdleIdeal = 0;
ContextSwitchInformation->PreemptAny = 0;
ContextSwitchInformation->PreemptCurrent = 0;
ContextSwitchInformation->PreemptLast = 0;
ContextSwitchInformation->SwitchToIdle = 0;
return STATUS_SUCCESS;
}
/* Class 37 - Registry Quota Information */