proc.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

  lpStartupInfo->wShowWindow = (WORD)Params->ShowWindowFlags;
  lpStartupInfo->cbReserved2 = Params->RuntimeData.Length;
  lpStartupInfo->lpReserved2 = (LPBYTE)Params->RuntimeData.Buffer;
  
  lpStartupInfo->hStdInput = Params->StandardInput;
  lpStartupInfo->hStdOutput = Params->StandardOutput;
  lpStartupInfo->hStdError = Params->StandardError;
}


/*
 * @implemented
 */
VOID STDCALL
GetStartupInfoA(LPSTARTUPINFOA lpStartupInfo)
{
  PRTL_USER_PROCESS_PARAMETERS Params;
  ANSI_STRING AnsiString;

  if (lpStartupInfo == NULL)
    {
	SetLastError(ERROR_INVALID_PARAMETER);
	return;
    }

  Params = NtCurrentPeb ()->ProcessParameters;

  RtlAcquirePebLock ();

  /* FIXME - not thread-safe */
  if (lpLocalStartupInfo == NULL)
    {
	/* create new local startup info (ansi) */
	lpLocalStartupInfo = RtlAllocateHeap (RtlGetProcessHeap (),
	                                      0,
	                                      sizeof(STARTUPINFOA));
        if (lpLocalStartupInfo == NULL)
        {
            RtlReleasePebLock ();
            SetLastError(ERROR_NOT_ENOUGH_MEMORY);
            return;
        }

	lpLocalStartupInfo->cb = sizeof(STARTUPINFOA);

	/* copy window title string */
	RtlUnicodeStringToAnsiString (&AnsiString,
	                              &Params->WindowTitle,
	                              TRUE);
	lpLocalStartupInfo->lpTitle = AnsiString.Buffer;

	/* copy desktop info string */
	RtlUnicodeStringToAnsiString (&AnsiString,
	                              &Params->DesktopInfo,
	                              TRUE);
	lpLocalStartupInfo->lpDesktop = AnsiString.Buffer;

	/* copy shell info string */
	RtlUnicodeStringToAnsiString (&AnsiString,
	                              &Params->ShellInfo,
	                              TRUE);
	lpLocalStartupInfo->lpReserved = AnsiString.Buffer;

	lpLocalStartupInfo->dwX = Params->StartingX;
	lpLocalStartupInfo->dwY = Params->StartingY;
	lpLocalStartupInfo->dwXSize = Params->CountX;
	lpLocalStartupInfo->dwYSize = Params->CountY;
	lpLocalStartupInfo->dwXCountChars = Params->CountCharsX;
	lpLocalStartupInfo->dwYCountChars = Params->CountCharsY;
	lpLocalStartupInfo->dwFillAttribute = Params->FillAttribute;
	lpLocalStartupInfo->dwFlags = Params->WindowFlags;
	lpLocalStartupInfo->wShowWindow = (WORD)Params->ShowWindowFlags;
	lpLocalStartupInfo->cbReserved2 = Params->RuntimeData.Length;
	lpLocalStartupInfo->lpReserved2 = (LPBYTE)Params->RuntimeData.Buffer;

	lpLocalStartupInfo->hStdInput = Params->StandardInput;
	lpLocalStartupInfo->hStdOutput = Params->StandardOutput;
	lpLocalStartupInfo->hStdError = Params->StandardError;
     }

   RtlReleasePebLock ();

   /* copy local startup info data to external startup info */
   memcpy (lpStartupInfo,
           lpLocalStartupInfo,
           sizeof(STARTUPINFOA));
}


/*
 * @implemented
 */
BOOL STDCALL
FlushInstructionCache (HANDLE	hProcess,
		       LPCVOID	lpBaseAddress,
		       DWORD	dwSize)
{
  NTSTATUS Status;

  Status = NtFlushInstructionCache(hProcess,
				   (PVOID)lpBaseAddress,
				   dwSize);
  if (!NT_SUCCESS(Status))
    {
      SetLastErrorByStatus(Status);
      return FALSE;
    }
  return TRUE;
}


/*
 * @implemented
 */
VOID STDCALL
ExitProcess(UINT uExitCode)
{
  CSR_API_MESSAGE CsrRequest;
  ULONG Request;
  NTSTATUS Status;

  /* unload all dll's */
  LdrShutdownProcess ();

  /* notify csrss of process termination */
  Request = TERMINATE_PROCESS;
  Status = CsrClientCallServer(&CsrRequest,
			       NULL,
                   MAKE_CSR_API(Request, CSR_NATIVE),
			       sizeof(CSR_API_MESSAGE));
  if (!NT_SUCCESS(Status) || !NT_SUCCESS(CsrRequest.Status))
    {
      DPRINT("Failed to tell csrss about terminating process\n");
    }


  NtTerminateProcess (NtCurrentProcess (),
		      uExitCode);

  /* should never get here */
  ASSERT(0);
  while(1);
}


/*
 * @implemented
 */
BOOL STDCALL
TerminateProcess (HANDLE	hProcess,
		  UINT	uExitCode)
{
  NTSTATUS Status;

  Status = NtTerminateProcess (hProcess, uExitCode);
  if (NT_SUCCESS(Status))
    {
      return TRUE;
    }
  SetLastErrorByStatus (Status);
  return FALSE;
}


/*
 * @unimplemented
 */
VOID STDCALL
FatalAppExitA (UINT	uAction,
	       LPCSTR	lpMessageText)
{
  UNICODE_STRING MessageTextU;
  ANSI_STRING MessageText;

  RtlInitAnsiString (&MessageText, (LPSTR) lpMessageText);

  RtlAnsiStringToUnicodeString (&MessageTextU,
				&MessageText,
				TRUE);

  FatalAppExitW (uAction, MessageTextU.Buffer);

  RtlFreeUnicodeString (&MessageTextU);
}


/*
 * @unimplemented
 */
VOID STDCALL
FatalAppExitW(UINT uAction,
	      LPCWSTR lpMessageText)
{
  return;
}


/*
 * @implemented
 */
VOID STDCALL
FatalExit (int ExitCode)
{
  ExitProcess(ExitCode);
}


/*
 * @implemented
 */
DWORD STDCALL
GetPriorityClass (HANDLE hProcess)
{
  NTSTATUS Status;
  PROCESS_PRIORITY_CLASS PriorityClass;

  Status = NtQueryInformationProcess(hProcess,
                                     ProcessPriorityClass,
                                     &PriorityClass,
                                     sizeof(PROCESS_PRIORITY_CLASS),
                                     NULL);
  if(NT_SUCCESS(Status))
  {
    switch(PriorityClass.PriorityClass)
    {
      case PROCESS_PRIORITY_CLASS_IDLE:
        return IDLE_PRIORITY_CLASS;

      case PROCESS_PRIORITY_CLASS_BELOW_NORMAL:
        return BELOW_NORMAL_PRIORITY_CLASS;

      case PROCESS_PRIORITY_CLASS_NORMAL:
        return NORMAL_PRIORITY_CLASS;

      case PROCESS_PRIORITY_CLASS_ABOVE_NORMAL:
        return ABOVE_NORMAL_PRIORITY_CLASS;

      case PROCESS_PRIORITY_CLASS_HIGH:
        return HIGH_PRIORITY_CLASS;

      case PROCESS_PRIORITY_CLASS_REALTIME:
        return REALTIME_PRIORITY_CLASS;

      default:
        return NORMAL_PRIORITY_CLASS;
    }
  }

  SetLastErrorByStatus(Status);
  return FALSE;
}


/*
 * @implemented
 */
BOOL STDCALL
SetPriorityClass (HANDLE hProcess,
		  DWORD	dwPriorityClass)
{
  NTSTATUS Status;
  PROCESS_PRIORITY_CLASS PriorityClass;

  switch(dwPriorityClass)
  {
    case IDLE_PRIORITY_CLASS:
      PriorityClass.PriorityClass = PROCESS_PRIORITY_CLASS_IDLE;
      break;

    case BELOW_NORMAL_PRIORITY_CLASS:
      PriorityClass.PriorityClass = PROCESS_PRIORITY_CLASS_BELOW_NORMAL;
      break;

    case NORMAL_PRIORITY_CLASS:
      PriorityClass.PriorityClass = PROCESS_PRIORITY_CLASS_NORMAL;
      break;

    case ABOVE_NORMAL_PRIORITY_CLASS:
      PriorityClass.PriorityClass = PROCESS_PRIORITY_CLASS_ABOVE_NORMAL;
      break;

    case HIGH_PRIORITY_CLASS:
      PriorityClass.PriorityClass = PROCESS_PRIORITY_CLASS_HIGH;
      break;

    case REALTIME_PRIORITY_CLASS:
      PriorityClass.PriorityClass = PROCESS_PRIORITY_CLASS_REALTIME;
      break;

    default:
      SetLastError(ERROR_INVALID_PARAMETER);
      return FALSE;
  }

  PriorityClass.Foreground = FALSE;

  Status = NtSetInformationProcess(hProcess,
                                   ProcessPriorityClass,
                                   &PriorityClass,
                                   sizeof(PROCESS_PRIORITY_CLASS));

  if(!NT_SUCCESS(Status))
  {
    SetLastErrorByStatus(Status);
    return FALSE;
  }

  return TRUE;
}


/*
 * @implemented
 */
DWORD STDCALL
GetProcessVersion (DWORD ProcessId)
{
  DWORD			Version = 0;
  PIMAGE_NT_HEADERS	NtHeader = NULL;
  PVOID			BaseAddress = NULL;

  /* Caller's */
  if (0 == ProcessId || GetCurrentProcessId() == ProcessId)
    {
      BaseAddress = (PVOID) NtCurrentPeb()->ImageBaseAddress;
      NtHeader = RtlImageNtHeader (BaseAddress);
      if (NULL != NtHeader)
	{
	  Version =
	    (NtHeader->OptionalHeader.MajorOperatingSystemVersion << 16) |
	    (NtHeader->OptionalHeader.MinorOperatingSystemVersion);
	}
    }
  else /* other process */
    {
      /* FIXME: open the other process */
      SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
    }
  return (Version);
}


/*
 * @implemented
 */
BOOL
STDCALL
GetProcessIoCounters(
  HANDLE hProcess,
  PIO_COUNTERS lpIoCounters)
{
  NTSTATUS Status;

  Status = NtQueryInformationProcess(hProcess,
				     ProcessIoCounters,
				     lpIoCounters,
				     sizeof(IO_COUNTERS),
				     NULL);
  if (!NT_SUCCESS(Status))
    {
      SetLastErrorByStatus(Status);
      return(FALSE);
    }

  return TRUE;
}


/*
 * @implemented
 */
BOOL
STDCALL
GetProcessPriorityBoost(HANDLE hProcess,
                        PBOOL pDisablePriorityBoost)
{
  NTSTATUS Status;
  ULONG PriorityBoost;

  Status = NtQueryInformationProcess(hProcess,
				     ProcessPriorityBoost,
				     &PriorityBoost,
				     sizeof(ULONG),
				     NULL);
  if (NT_SUCCESS(Status))
    {
      *pDisablePriorityBoost = PriorityBoost;
      return TRUE;
    }

  SetLastErrorByStatus(Status);
  return FALSE;
}


/*
 * @implemented
 */
BOOL
STDCALL
SetProcessPriorityBoost(HANDLE hProcess,
                        BOOL bDisablePriorityBoost)
{
  NTSTATUS Status;
  ULONG PriorityBoost = (bDisablePriorityBoost ? TRUE : FALSE); /* prevent setting values other than 1 and 0 */

  Status = NtSetInformationProcess(hProcess,
				   ProcessPriorityBoost,
				   &PriorityBoost,
				   sizeof(ULONG));
  if (!NT_SUCCESS(Status))
    {
      SetLastErrorByStatus(Status);
      return FALSE;
    }

  return TRUE;
}


/*
 * @implemented
 */
BOOL
STDCALL
GetProcessHandleCount(HANDLE hProcess,
                      PDWORD pdwHandleCount)
{
    ULONG phc;
    NTSTATUS Status;

    Status = NtQueryInformationProcess(hProcess,
                                       ProcessHandleCount,
                                       &phc,
                                       sizeof(ULONG),
                                       NULL);
    if(NT_SUCCESS(Status))
    {
      *pdwHandleCount = phc;
      return TRUE;
    }

    SetLastErrorByStatus(Status);
    return FALSE;
}

/* EOF */