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- Implement ProcessPriorityClass case for NtSetInformationProcess(). Based on Dmitry Chapyshev's work and testing.

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svn path=/trunk/; revision=41376
This commit is contained in:
Aleksey Bragin 2009-06-10 19:31:54 +00:00
parent d538f101ac
commit 67b2570aeb
1 changed files with 47 additions and 1 deletions
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48
reactos/ntoskrnl/ps/query.c
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@ -739,6 +739,7 @@ NtSetInformationProcess(IN HANDLE ProcessHandle,
HANDLE PortHandle = NULL;
HANDLE TokenHandle = NULL;
PROCESS_SESSION_INFORMATION SessionInfo = {0};
PROCESS_PRIORITY_CLASS PriorityClass = {0};
PVOID ExceptionPort;
PAGED_CODE();
@ -924,8 +925,53 @@ NtSetInformationProcess(IN HANDLE ProcessHandle,
//PsUnlockProcess(Process);
break;
/* Priority class: HACK! */
case ProcessPriorityClass:
/* Check buffer length */
if (ProcessInformationLength != sizeof(PROCESS_PRIORITY_CLASS))
{
Status = STATUS_INFO_LENGTH_MISMATCH;
break;
}
/* Enter SEH for capture */
_SEH2_TRY
{
/* Capture the caller's buffer */
PriorityClass = *(PPROCESS_PRIORITY_CLASS)ProcessInformation;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
/* Get the exception code */
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
if (!NT_SUCCESS(Status)) break;
/* Check for invalid PriorityClass value */
if (PriorityClass.PriorityClass > PROCESS_PRIORITY_CLASS_ABOVE_NORMAL)
{
Status = STATUS_INVALID_PARAMETER;
break;
}
/* TODO: Check privileges */
/* Check if we have a job */
if (Process->Job)
{
DPRINT1("Jobs not yet supported\n");
}
/* Set process priority class */
Process->PriorityClass = PriorityClass.PriorityClass;
/* Set process priority mode (foreground or background) */
PsSetProcessPriorityByClass(Process,
!PriorityClass.Foreground ? PsProcessPriorityBackground :
PsProcessPriorityForeground);
Status = STATUS_SUCCESS;
break;
/* We currently don't implement any of these */