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423 lines
12 KiB
423 lines
12 KiB
//+----------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: misc.hxx
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//
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// Contents: Miscellaneous helper functions
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//
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// Classes: none.
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//
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// Functions: StringFromTrigger, CreateFolders, GetDaysOfWeekString,
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// GetExitCodeString, GetSageExitCodeString
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//
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// History: 08-Dec-95 EricB Created.
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//
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//-----------------------------------------------------------------------------
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#include <job_cls.hxx>
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#ifndef __MISC_HXX__
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#define __MISC_HXX__
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#include <mbstring.h> // for _mbs* funcs
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//
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// Macro to determine the number of elements in an array
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//
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#define ARRAY_LEN(a) (sizeof(a)/sizeof(a[0]))
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//
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// Macro to convert Win32 errors to an HRESULT w/o overwriting the FACILITY.
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//
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#define _HRESULT_FROM_WIN32(x) \
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(HRESULT_FACILITY(x) ? x : HRESULT_FROM_WIN32(x))
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//
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// minFileTime, maxFileTime - min and max for FILETIMEs
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//
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inline FILETIME
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minFileTime(FILETIME ft1, FILETIME ft2)
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{
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if (CompareFileTime(&ft1, &ft2) < 0)
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{
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return ft1;
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}
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else
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{
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return ft2;
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}
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}
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inline FILETIME
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maxFileTime(FILETIME ft1, FILETIME ft2)
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{
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if (CompareFileTime(&ft1, &ft2) > 0)
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{
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return ft1;
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}
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else
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{
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return ft2;
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}
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}
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//
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// These functions let us use a FILETIME as an unsigned __int64 - which
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// it is, after all!
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//
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inline DWORDLONG
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FTto64(FILETIME ft)
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{
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ULARGE_INTEGER uli = { ft.dwLowDateTime, ft.dwHighDateTime };
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return uli.QuadPart;
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}
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inline FILETIME
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FTfrom64(DWORDLONG ft)
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{
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ULARGE_INTEGER uli;
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uli.QuadPart = ft;
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FILETIME ftResult = { uli.LowPart, uli.HighPart };
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return ftResult;
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}
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//
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// Absolute difference between two filetimes
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//
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inline DWORDLONG
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absFileTimeDiff(FILETIME ft1, FILETIME ft2)
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{
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if (CompareFileTime(&ft1, &ft2) < 0)
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{
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return (FTto64(ft2) - FTto64(ft1));
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}
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else
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{
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return (FTto64(ft1) - FTto64(ft2));
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}
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}
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//
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// GetLocalTimeAsFileTime
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//
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inline FILETIME
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GetLocalTimeAsFileTime()
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{
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FILETIME ftSystem;
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GetSystemTimeAsFileTime(&ftSystem);
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FILETIME ftNow;
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BOOL fSuccess = FileTimeToLocalFileTime(&ftSystem, &ftNow);
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Win4Assert(fSuccess);
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return ftNow;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: SchedMapRpcError
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//
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// Purpose: Remap RPC exception codes that are unsuitable for displaying
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// to the user to more comprehensible errors.
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//
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// Arguments: [dwError] - the error returned by RpcExceptionCode().
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//
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// Returns: An HRESULT.
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//
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//----------------------------------------------------------------------------
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HRESULT
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SchedMapRpcError(DWORD dwError);
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//+---------------------------------------------------------------------------
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//
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// Function: ComposeErrorMsg
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//
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// Purpose: Take the two message IDs and the error code and create an
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// error reporting string that can be used by both service
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// logging and UI dialogs.
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//
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// [uErrorClassMsgID] - this indicates the class of error, such
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// as "Unable to start task" or "Forced to
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// close"
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// [dwErrorCode] - if non-zero, then an error from the OS
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// that would be expanded by FormatMessage.
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// [uHelpHintMsgID] - an optional suggestion as to a possible
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// remedy.
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// [fIndent] - flag indicating if the text should be
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// indented or not.
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//
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// Returns: A string or NULL on failure.
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//
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// Notes: Release the string memory when done using LocalFree.
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//----------------------------------------------------------------------------
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LPTSTR
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ComposeErrorMsg(
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UINT uErrorClassMsgID,
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DWORD dwErrCode,
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UINT uHelpHintMsgID = 0,
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BOOL fIndent = TRUE);
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//+---------------------------------------------------------------------------
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//
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// Function: GetExitCodeString
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//
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// Synopsis: Retrieve the string associated with the exit code from a
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// message file. Algorithm:
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//
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// Consult the Software\Microsoft\Job Scheduler subkey.
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//
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// Attempt to retrieve the ExitCodeMessageFile string value from
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// a subkey matching the job executable prefix (i.e., minus the
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// extension).
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//
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// The ExitCodeMessageFile specifies a binary from which the
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// message string associated with the exit code value is fetched.
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//
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// Arguments: [dwExitCode] -- Job exit code.
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// [ptszExitCodeValue] -- Job exit code in string form.
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// [ptszJobExecutable] -- Binary name executed with the job.
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//
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// Returns: TCHAR * exit code string
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// NULL on error
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//
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// Notes: FormatMessage allocates the return string. Use LocalFree() to
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// deallocate.
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//
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//----------------------------------------------------------------------------
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TCHAR *
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GetExitCodeString(DWORD dwExitCode,
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TCHAR * ptszExitCodeValue,
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TCHAR * ptszJobExecutable);
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//+---------------------------------------------------------------------------
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//
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// Function: GetSageExitCodeString
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//
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// Synopsis: Retrieve the string associated with the exit code the SAGE
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// way. Algorithm:
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//
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// Consult the Software\Microsoft\System Agent\SAGE subkey.
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//
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// Enumerate the subkeys to find a subkey with a "Program" string
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// value specifying an executable name matching that of the job.
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//
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// If such a subkey was found, open the Result Codes subkey and
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// fetch the value name matching the exit code. The string value
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// is the exit code string.
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//
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// Arguments: [ptszExitCodeValue] -- Job exit code in string form.
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// [ptszJobExecutable] -- Binary name executed with the job.
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//
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// Returns: TCHAR * exit code string
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// NULL on error
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//
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// Notes: FormatMessage allocates the return string. Use LocalFree() to
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// deallocate.
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//
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//----------------------------------------------------------------------------
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TCHAR *
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GetSageExitCodeString(TCHAR * ptszExitCodeValue, TCHAR * ptszJobExecutable);
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//+---------------------------------------------------------------------------
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//
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// Function: ComposeErrorMessage
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//
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// Synopsis:
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//
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// Arguments: [fAutoStart] - If true, service is set to autostart.
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//
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// Returns: HRESULTs
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//
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// Notes: FormatMessage allocates the return string. Use LocalFree() to
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// deallocate.
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//
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//----------------------------------------------------------------------------
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HRESULT
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ComposeErrorMessage(UINT uErrMsgID,
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HRESULT hrFailureCode,
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UINT uSuggestionID);
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//+---------------------------------------------------------------------------
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//
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// Function: AutoStart
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//
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// Synopsis: Persists the autostart state in the registry.
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//
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// Arguments: [fAutoStart] - If true, service is set to autostart.
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//
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// Returns: HRESULTs
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//
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// Notes: FormatMessage allocates the return string. Use LocalFree() to
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// deallocate.
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//
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//----------------------------------------------------------------------------
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HRESULT
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AutoStart(BOOL fAutoStart);
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#if !defined(_CHICAGO_)
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SC_HANDLE
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OpenScheduleService(DWORD dwDesiredAccess);
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#endif // !defined(_CHICAGO_)
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//
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// Temporary macros to map wide-char string routines to the CRT until we
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// can substitute our own.
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//
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#define s_wcscpy(d, s) wcscpy(d, s)
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#define s_wcscat(d, s) wcscat(d, s)
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#define s_wcslen(s) wcslen(s)
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#define s_isDriveLetter(c) ((c >= TEXT('a') && c <= TEXT('z')) || \
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(c >= TEXT('A') && c <= TEXT('Z')))
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//+----------------------------------------------------------------------------
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//
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// Function: HasSpaces
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//
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// Synopsis: Scans the string for space characters.
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//
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// Arguments: [ptstr] - the string to scan
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//
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// Returns: TRUE if any space characters are found.
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//
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//-----------------------------------------------------------------------------
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inline BOOL
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HasSpacesA(LPCSTR pstr)
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{
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return _mbschr((PUCHAR) pstr, ' ') != NULL;
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}
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inline BOOL
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HasSpacesW(LPCWSTR pwstr)
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{
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return wcschr(pwstr, L' ') != NULL;
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}
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#if defined(UNICODE)
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# define HasSpaces HasSpacesW
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#else
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# define HasSpaces HasSpacesA
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#endif
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//+----------------------------------------------------------------------------
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//
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// Function: StringFromTrigger
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//
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// Synopsis: Returns the string representation of the passed in trigger
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// data structure.
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//
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// Arguments: [pTrigger] - the TASK_TRIGGER struct
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// [ppwszTrigger] - the returned string
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// [lpDetails] - the SHELLDETAILS struct
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//
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// Returns: HRESULTS
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//
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// Notes: The string is allocated by this function with CoTaskMemAlloc.
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//-----------------------------------------------------------------------------
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HRESULT
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StringFromTrigger(const PTASK_TRIGGER pTrigger, LPWSTR * ppwszTrigger, LPSHELLDETAILS lpDetails);
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//+----------------------------------------------------------------------------
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//
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// Function: CreateFolders
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//
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// Synopsis: Creates any missing directories for any slash delimited folder
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// names in the path.
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//
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// Arguments: [pwszPathName] - the path name
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// [fHasFileName] - if true, the path name includes a file name.
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//
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// Returns: HRESULTS
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//
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// Notes: pwszPathName should never end in a slash.
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// Treats forward and back slashes identically.
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//-----------------------------------------------------------------------------
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HRESULT
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CreateFolders(LPCTSTR pwszPathName, BOOL fHasFileName);
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HRESULT GetDaysOfWeekString(WORD rgfDaysOfTheWeek, LPTSTR ptszBuf, UINT cchBuf);
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#if defined(_CHICAGO_)
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//+-------------------------------------------------------------------------
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//
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// Operator: new
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//
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// Synopsis: Allocates memory. Needed for Chicago since we can't use the
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// CRTs on that platform.
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//
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// Arguments: [cb] - a count of bytes to allocate
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//
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// Returns: a pointer to the allocated block.
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//
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//--------------------------------------------------------------------------
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inline void * __cdecl operator new(unsigned int cb)
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{
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return LocalAlloc(LPTR, cb);
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}
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//+-------------------------------------------------------------------------
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//
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// Operator: delete
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//
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// Synopsis: Frees memory allocated with new.
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//
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// Arguments: [ptr] - a pointer to the allocated memory.
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//
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//--------------------------------------------------------------------------
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inline void __cdecl operator delete(void * ptr)
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{
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if (ptr != NULL)
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{
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LocalFree(ptr);
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}
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}
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#endif // _CHICAGO_
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//+---------------------------------------------------------------------------
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//
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// Function: GetParentDirectory
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//
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// Synopsis: Return the parent directory of the path indicated.
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//
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// Arguments: [ptszPath] -- Input path.
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// [tszDirectory] -- Caller-allocated returned directory.
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//
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// Returns: None.
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//
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// Notes: None.
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//
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//----------------------------------------------------------------------------
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void
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GetParentDirectory(LPCTSTR ptszPath, TCHAR tszDirectory[]);
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VOID
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GetAppNameFromPath(
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LPCTSTR tszAppPathName,
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LPTSTR tszCopyTo,
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ULONG cchMax);
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BOOL SetAppPath(LPCTSTR tszAppPathName, LPTSTR *pptszSavedPath);
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#if !defined(_CHICAGO_)
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BOOL
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IsThreadCallerAnAdmin(HANDLE hThreadToken);
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HRESULT
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LoadAtJob(CJob * pJob, TCHAR * ptszAtJobFilename);
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BOOL IsValidAtFilename(LPCWSTR wszFilename);
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#endif // !defined(_CHICAGO_)
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#endif // __MISC_HXX__
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