553 lines
20 KiB
C
553 lines
20 KiB
C
/***
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*mtdll.h - DLL/Multi-thread include
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*
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* Copyright (c) 1987-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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*
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* [Internal]
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*
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*Revision History:
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* 10-27-87 JCR Module created.
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* 11-13-87 SKS Added _HEAP_LOCK
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* 12-15-87 JCR Added _EXIT_LOCK
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* 01-07-88 BCM Added _SIGNAL_LOCK; upped MAXTHREADID from 16 to 32
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* 02-01-88 JCR Added _dll_mlock/_dll_munlock macros
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* 05-02-88 JCR Added _BHEAP_LOCK
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* 06-17-88 JCR Corrected prototypes for special mthread debug routines
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* 08-15-88 JCR _check_lock now returns int, not void
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* 08-22-88 GJF Modified to also work for the 386 (small model only)
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* 06-05-89 JCR 386 mthread support
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* 06-09-89 JCR 386: Added values to _tiddata struc (for _beginthread)
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* 07-13-89 JCR 386: Added _LOCKTAB_LOCK
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* 08-17-89 GJF Cleanup, now specific to OS/2 2.0 (i.e., 386 flat model)
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* 10-30-89 GJF Fixed copyright
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* 01-02-90 JCR Moved a bunch of definitions from os2dll.inc
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* 04-06-90 GJF Added _INC_OS2DLL stuff and #include <cruntime.h>. Made
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* all function _CALLTYPE2 (for now).
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* 04-10-90 GJF Added prototypes for _[un]lockexit().
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* 08-16-90 SBM Made _terrno and _tdoserrno int, not unsigned
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* 09-14-90 GJF Added _pxcptacttab, _pxcptinfoptr and _fpecode fields
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* to _tiddata struct.
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* 10-09-90 GJF Thread ids are of type unsigned long.
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* 12-06-90 SRW Added _OSFHND_LOCK
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* 06-04-91 GJF Win32 version of multi-thread types and prototypes.
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* 08-15-91 GJF Made _tdoserrno an unsigned long for Win32.
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* 08-20-91 JCR C++ and ANSI naming
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* 09-29-91 GJF Conditionally added prototypes for _getptd_lk
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* and _getptd1_lk for Win32 under DEBUG.
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* 10-03-91 JCR Added _cvtbuf to _tiddata structure
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* 02-17-92 GJF For Win32, replaced _NFILE_ with _NHANDLE_ and
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* _NSTREAM_.
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* 03-06-92 GJF For Win32, made _[un]mlock_[fh|stream]() macros
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* directly call _[un]lock().
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* 03-17-92 GJF Dropped _namebuf field from _tiddata structure for
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* Win32.
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* 08-05-92 GJF Function calling type and variable type macros.
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* 12-03-91 ETC Added _wtoken to _tiddata, added intl LOCK's;
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* added definition of wchar_t (needed for _wtoken).
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* 08-14-92 KRS Port ETC's _wtoken change from other tree.
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* 08-21-92 GJF Merged 08-05-92 and 08-14-92 versions.
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* 12-03-92 KRS Added _mtoken field for MTHREAD _mbstok().
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* 01-21-93 GJF Removed support for C6-386's _cdecl.
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* 02-25-93 GJF Purged Cruiser support and many outdated definitions
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* and declarations.
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* 04-07-93 SKS Add _CRTIMP keyword for CRT DLL model
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* 10-11-93 GJF Support NT and Cuda builds. Also, purged some old
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* non-Win32 support (it was incomplete anyway) and
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* replace MTHREAD with _MT.
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* 10-13-93 SKS Change name from <MTDLL.H> to <MTDLL.H>
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* 10-27-93 SKS Add Per-Thread Variables for C++ Exception Handling
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* 12-13-93 SKS Add _freeptd(), which frees per-thread CRT data
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* 12-17-93 CFW Add Per-Thread Variable for _wasctime().
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* 04-15-93 CFW Add _MB_CP_LOCK.
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* 04-21-94 GJF Made declaration of __tlsindex and definition of the
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* lock macros conditional on ndef DLL_FOR_WIN32S.
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* Also, conditionally include win32s.h.
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* 12-14-94 SKS Increase file handle and FILE * limits for MSVCRT30.DLL
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* 02-14-95 CFW Clean up Mac merge.
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* 03-06-95 GJF Added _[un]lock_file[2] prototypes, _[un]lock_str2
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* macros, and changed the _[un]lock_str macros.
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* 03-13-95 GJF _IOB_ENTRIES replaced _NSTREAM_ as the number of
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* stdio locks in _locktable[].
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* 03-29-95 CFW Add error message to internal headers.
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* 04-13-95 DAK Add NT Kernel EH support
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* 04-18-95 SKS Add 5 per-thread variables for MIPS EH use
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* 05-02-95 SKS Add _initptd() which initializes per-thread data
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* 05-08-95 CFW Official ANSI C++ new handler added.
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* 05-19-95 DAK More Kernel EH work.
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* 06-05-95 JWM _NLG_dwcode & _NLG_LOCK added.
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* 06-11-95 GJF The critical sections for file handles are now in the
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* ioinfo struct rather than the lock table.
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* 07-20-95 CFW Remove _MBCS ifdef - caused ctime/wctime bug.
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* 10-03-95 GJF Support for new scheme to lock locale including
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* _[un]lock_locale() macros and decls of _setlc_active
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* and __unguarded_readlc_active. Also commented out
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* obsolete *_LOCK macros.
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* 10-19-95 BWT Fixup _NTSUBSET_ usage.
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* 12-07-95 SKS Fix misspelling of _NTSUBSET_ (final _ was missing)
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* 12-14-95 JWM Add "#pragma once".
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* 05-02-96 SKS Variables _setlc_active and __unguarded_readlc_active
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* are used by MSVCP42*.DLL and so must be _CRTIMP.
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* 07-16-96 GJF Locale locking wasn't really thread safe. Replaced ++
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* and -- with InterlockedIncrement and
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* InterlockedDecrement API, respectively.
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* 07-18-96 GJF Further mod to locale locking to fix race condition.
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* 02-05-97 GJF Cleaned out obsolete support for Win32s, _CRTAPI* and
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* _NTSDK. Also, replaced #if defined with #ifdef where
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* appropriate.
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* 10-07-97 RDL Added IA64.
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* 02-02-98 GJF Changes for Win64: changed _thandle type to uintptr_t.
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* 04-27-98 GJF Added support for per-thread mbc information.
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* 07-28-98 JWM Added __pceh to per-thread data for comerr support.
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* 09-10-98 GJF Added support for per-thread locale information.
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* 12-05-98 JWM Pulled all comerr support.
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* 03-24-99 GJF More reference counters for threadlocinfo.
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* 04-24-99 PML Added lconv_intl_refcount to threadlocinfo.
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* 05-17-99 PML Remove all Macintosh support.
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* 10-06-99 PML Add _W64 modifier to types which are 32 bits in Win32,
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* 64 bits in Win64.
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* 11-24-99 GB Add _werrmsg in struct _tiddata for error support in
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* wide char version of strerror.
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* 12-10-99 GB Add _ProcessingThrow in struct _tiddata.
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* 12-10-99 GB Added a new Lock _UNDNAME_LOCK for critical section in
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* unDName().
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* 26-01-00 GB Added lc_clike in threadlocinfostruct.
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* 06-08-00 PML Remove threadmbcinfo.{pprev,pnext}. Rename
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* THREADLOCALEINFO to _THREADLOCALEINFO and
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* THREADMBCINFO to _THREADMBCINFO.
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* 09-06-00 GB deleted _wctype and _pwctype from threadlocinfo.
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* 01-29-01 GB Added _func function version of data variable in
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* _lock_locale to work with STATIC_CPPLIB
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* 02-20-01 PML vs7#172586 Avoid _RT_LOCK by preallocating all locks
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* that will be required, and returning failure back on
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* inability to allocate a lock.
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* 03-22-01 PML Add _DEBUG_LOCK for _CrtSetReportHook2 (vs7#124998)
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* 03-25-01 PML Add ww_caltype & ww_lcid to __lc_time_data (vs7#196892)
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*
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****/
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#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
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#pragma once
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#endif
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#ifndef _INC_MTDLL
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#define _INC_MTDLL
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#ifndef _CRTBLD
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/*
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* This is an internal C runtime header file. It is used when building
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* the C runtimes only. It is not to be used as a public header file.
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*/
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#error ERROR: Use of C runtime library internal header file.
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#endif /* _CRTBLD */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <cruntime.h>
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#include <windows.h>
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#if !defined(_W64)
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#if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 /*IFSTRIP=IGN*/
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#define _W64 __w64
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#else
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#define _W64
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#endif
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#endif
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/* Define _CRTIMP */
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#ifndef _CRTIMP
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#ifdef CRTDLL
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#define _CRTIMP __declspec(dllexport)
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#else /* ndef CRTDLL */
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#ifdef _DLL
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#define _CRTIMP __declspec(dllimport)
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#else /* ndef _DLL */
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#define _CRTIMP
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#endif /* _DLL */
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#endif /* CRTDLL */
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#endif /* _CRTIMP */
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/* Define __cdecl for non-Microsoft compilers */
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#if ( !defined(_MSC_VER) && !defined(__cdecl) )
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#define __cdecl
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#endif
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#ifndef _UINTPTR_T_DEFINED
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#ifdef _WIN64
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typedef unsigned __int64 uintptr_t;
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#else
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typedef _W64 unsigned int uintptr_t;
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#endif
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#define _UINTPTR_T_DEFINED
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#endif
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/*
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* Define the number of supported handles and streams. The definitions
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* here must exactly match those in internal.h (for _NHANDLE_) and stdio.h
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* (for _NSTREAM_).
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*/
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#define _IOB_ENTRIES 20
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/* Lock symbols */
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#define _SIGNAL_LOCK 0 /* lock for signal() */
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#define _IOB_SCAN_LOCK 1 /* _iob[] table lock */
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#define _TMPNAM_LOCK 2 /* lock global tempnam variables */
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#define _CONIO_LOCK 3 /* lock for conio routines */
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#define _HEAP_LOCK 4 /* lock for heap allocator routines */
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#define _UNDNAME_LOCK 5 /* lock for unDName() routine */
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#define _TIME_LOCK 6 /* lock for time functions */
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#define _ENV_LOCK 7 /* lock for environment variables */
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#define _EXIT_LOCK1 8 /* lock #1 for exit code */
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#define _POPEN_LOCK 9 /* lock for _popen/_pclose database */
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#define _LOCKTAB_LOCK 10 /* lock to protect semaphore lock table */
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#define _OSFHND_LOCK 11 /* lock to protect _osfhnd array */
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#define _SETLOCALE_LOCK 12 /* lock for locale handles, etc. */
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#define _MB_CP_LOCK 13 /* lock for multibyte code page */
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#define _TYPEINFO_LOCK 14 /* lock for type_info access */
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#define _DEBUG_LOCK 15 /* lock for debug global structs */
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#define _STREAM_LOCKS 16 /* Table of stream locks */
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#define _LAST_STREAM_LOCK (_STREAM_LOCKS+_IOB_ENTRIES-1) /* Last stream lock */
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#define _TOTAL_LOCKS (_LAST_STREAM_LOCK+1)
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#define _LOCK_BIT_INTS (_TOTAL_LOCKS/(sizeof(unsigned)*8))+1 /* # of ints to hold lock bits */
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#ifndef __assembler
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/* Multi-thread macros and prototypes */
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#if defined(_MT) || defined(_NTSUBSET_)
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/* need wchar_t for _wtoken field in _tiddata */
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#ifndef _WCHAR_T_DEFINED
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typedef unsigned short wchar_t;
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#define _WCHAR_T_DEFINED
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#endif
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#ifdef ANSI_NEW_HANDLER
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/* ANSI C++ new handler */
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#ifndef _ANSI_NH_DEFINED
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typedef void (__cdecl * new_handler) ();
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#define _ANSI_NH_DEFINED
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#endif
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#endif /* ANSI_NEW_HANDLER */
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#ifdef _MT
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#ifndef _THREADMBCINFO
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typedef struct threadmbcinfostruct {
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int refcount;
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int mbcodepage;
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int ismbcodepage;
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int mblcid;
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unsigned short mbulinfo[6];
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char mbctype[257];
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char mbcasemap[256];
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} threadmbcinfo;
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typedef threadmbcinfo * pthreadmbcinfo;
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#define _THREADMBCINFO
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#endif
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#endif
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#ifndef __LC_TIME_DATA
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struct __lc_time_data {
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char *wday_abbr[7];
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char *wday[7];
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char *month_abbr[12];
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char *month[12];
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char *ampm[2];
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char *ww_sdatefmt;
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char *ww_ldatefmt;
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char *ww_timefmt;
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LCID ww_lcid;
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int ww_caltype;
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#ifdef _MT
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int refcount;
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#endif
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};
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#define __LC_TIME_DATA
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#endif
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#ifdef _MT
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#ifndef _THREADLOCALEINFO
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typedef struct threadlocaleinfostruct {
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int refcount;
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UINT lc_codepage;
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UINT lc_collate_cp;
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LCID lc_handle[6]; /* 6 == LC_MAX - LC_MIN + 1 */
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int lc_clike;
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int mb_cur_max;
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int * lconv_intl_refcount;
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int * lconv_num_refcount;
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int * lconv_mon_refcount;
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struct lconv * lconv;
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struct lconv * lconv_intl;
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int * ctype1_refcount;
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unsigned short * ctype1;
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const unsigned short * pctype;
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struct __lc_time_data * lc_time_curr;
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struct __lc_time_data * lc_time_intl;
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} threadlocinfo;
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typedef threadlocinfo * pthreadlocinfo;
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#define _THREADLOCALEINFO
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#endif
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#endif
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_CRTIMP extern unsigned long __cdecl __threadid(void);
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#define _threadid (__threadid())
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_CRTIMP extern uintptr_t __cdecl __threadhandle(void);
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#define _threadhandle (__threadhandle())
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#ifdef _NTSUBSET_
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/* Standard exception handler for NT kernel */
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#ifdef __cplusplus
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extern "C"
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#endif /* __cplusplus */
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void _cdecl SystemExceptionTranslator( unsigned int uiWhat,
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struct _EXCEPTION_POINTERS * pexcept );
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#endif /* def _NTSUBSET_ */
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/* Structure for each thread's data */
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struct _tiddata {
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unsigned long _tid; /* thread ID */
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#ifdef _NTSUBSET_
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struct _tiddata *_next; /* maintain a linked list */
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#else
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uintptr_t _thandle; /* thread handle */
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int _terrno; /* errno value */
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unsigned long _tdoserrno; /* _doserrno value */
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unsigned int _fpds; /* Floating Point data segment */
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unsigned long _holdrand; /* rand() seed value */
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char * _token; /* ptr to strtok() token */
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wchar_t * _wtoken; /* ptr to wcstok() token */
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unsigned char * _mtoken; /* ptr to _mbstok() token */
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#ifdef ANSI_NEW_HANDLER
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new_handler _newh; /* ptr to ANSI C++ new handler function */
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#endif /* ANSI_NEW_HANDLER */
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/* following pointers get malloc'd at runtime */
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char * _errmsg; /* ptr to strerror()/_strerror() buff */
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wchar_t * _werrmsg; /* ptr to _wcserror()/__wcserror() buff */
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char * _namebuf0; /* ptr to tmpnam() buffer */
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wchar_t * _wnamebuf0; /* ptr to _wtmpnam() buffer */
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char * _namebuf1; /* ptr to tmpfile() buffer */
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wchar_t * _wnamebuf1; /* ptr to _wtmpfile() buffer */
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char * _asctimebuf; /* ptr to asctime() buffer */
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wchar_t * _wasctimebuf; /* ptr to _wasctime() buffer */
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void * _gmtimebuf; /* ptr to gmtime() structure */
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char * _cvtbuf; /* ptr to ecvt()/fcvt buffer */
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/* following fields are needed by _beginthread code */
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void * _initaddr; /* initial user thread address */
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void * _initarg; /* initial user thread argument */
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/* following three fields are needed to support signal handling and
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* runtime errors */
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void * _pxcptacttab; /* ptr to exception-action table */
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void * _tpxcptinfoptrs; /* ptr to exception info pointers */
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int _tfpecode; /* float point exception code */
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/* pointer to the copy of the multibyte character information used by
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* the thread */
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pthreadmbcinfo ptmbcinfo;
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/* pointer to the copy of the locale informaton used by the thead */
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pthreadlocinfo ptlocinfo;
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#endif /* !_NTSUBSET_ */
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/* following field is needed by NLG routines */
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unsigned long _NLG_dwCode;
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/*
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* Per-Thread data needed by C++ Exception Handling
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*/
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void * _terminate; /* terminate() routine */
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void * _unexpected; /* unexpected() routine */
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void * _translator; /* S.E. translator */
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void * _curexception; /* current exception */
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void * _curcontext; /* current exception context */
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int _ProcessingThrow; /* for uncaught_exception */
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#if defined(_M_MRX000)
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void * _pFrameInfoChain;
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void * _pUnwindContext;
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void * _pExitContext;
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int _MipsPtdDelta;
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int _MipsPtdEpsilon;
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#elif defined(_M_PPC)
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void * _pExitContext;
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void * _pUnwindContext;
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void * _pFrameInfoChain;
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int _FrameInfo[6];
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#elif defined(_M_IA64) || defined(_M_AMD64)
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void * _pExitContext;
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void * _pUnwindContext;
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void * _pFrameInfoChain;
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unsigned __int64 _ImageBase;
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unsigned __int64 _TargetGp;
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unsigned __int64 _ThrowImageBase;
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#elif defined(_M_IX86)
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void * _pFrameInfoChain;
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#endif
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};
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typedef struct _tiddata * _ptiddata;
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/*
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* Declaration of TLS index used in storing pointers to per-thread data
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* structures.
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*/
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#ifndef _NTSUBSET_
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extern unsigned long __tlsindex;
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#ifdef _MT
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/*
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* Flag indicating whether or not setlocale() is active. Its value is the
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* number of setlocale() calls currently active.
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*/
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_CRTIMP extern int __setlc_active;
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/*
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* Flag indicating whether or not a function which references the locale
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* without having locked it is active. Its value is the number of such
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* functions.
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*/
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_CRTIMP extern int __unguarded_readlc_active;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _MT */
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#endif /* _NTSUBSET_ */
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/* macros */
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#ifdef _NTSUBSET_
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/*
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* #define all lock macros to nothing.
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*/
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#define _lock_fh(fh)
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#define _lock_str(s)
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#define _lock_str2(i,s)
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#define _lock_fh_check(fh,flag)
|
|
#define _mlock(l)
|
|
#define _munlock(l)
|
|
#define _unlock_fh(fh)
|
|
#define _unlock_str(s)
|
|
#define _unlock_str2(i,s)
|
|
#define _unlock_fh_check(fh,flag)
|
|
|
|
#define _lock_locale(llf)
|
|
#define _unlock_locale(llf)
|
|
|
|
#else /* ndef _NTSUBSET_ */
|
|
|
|
#define _lock_fh(fh) _lock_fhandle(fh)
|
|
#define _lock_str(s) _lock_file(s)
|
|
#define _lock_str2(i,s) _lock_file2(i,s)
|
|
#define _lock_fh_check(fh,flag) if (flag) _lock_fhandle(fh)
|
|
#define _mlock(l) _lock(l)
|
|
#define _munlock(l) _unlock(l)
|
|
#define _unlock_fh(fh) _unlock_fhandle(fh)
|
|
#define _unlock_str(s) _unlock_file(s)
|
|
#define _unlock_str2(i,s) _unlock_file2(i,s)
|
|
#define _unlock_fh_check(fh,flag) if (flag) _unlock_fhandle(fh)
|
|
|
|
// This is only used with STDCPP stuff only
|
|
#define _lock_locale(llf) \
|
|
InterlockedIncrement( ___unguarded_readlc_active_add_func() ); \
|
|
if ( ___setlc_active_func() ) { \
|
|
InterlockedDecrement( ___unguarded_readlc_active_add_func() ); \
|
|
_lock( _SETLOCALE_LOCK ); \
|
|
llf = 1; \
|
|
} \
|
|
else \
|
|
llf = 0;
|
|
|
|
#define _unlock_locale(llf) \
|
|
if ( llf ) \
|
|
_unlock( _SETLOCALE_LOCK ); \
|
|
else \
|
|
InterlockedDecrement( ___unguarded_readlc_active_add_func() );
|
|
|
|
|
|
#endif /* _NTSUBSET_ */
|
|
|
|
/* multi-thread routines */
|
|
|
|
void __cdecl _lock(int);
|
|
void __cdecl _lock_file(void *);
|
|
void __cdecl _lock_file2(int, void *);
|
|
int __cdecl _lock_fhandle(int);
|
|
void __cdecl _lockexit(void);
|
|
void __cdecl _unlock(int);
|
|
void __cdecl _unlock_file(void *);
|
|
void __cdecl _unlock_file2(int, void *);
|
|
void __cdecl _unlock_fhandle(int);
|
|
void __cdecl _unlockexit(void);
|
|
int __cdecl _mtinitlocknum(int);
|
|
|
|
_ptiddata __cdecl _getptd(void); /* return address of per-thread CRT data */
|
|
void __cdecl _freeptd(_ptiddata); /* free up a per-thread CRT data block */
|
|
void __cdecl _initptd(_ptiddata); /* initialize a per-thread CRT data block */
|
|
/* These functions are for enabling STATIC_CPPLIB functionality */
|
|
_CRTIMP int __cdecl ___setlc_active_func(void);
|
|
_CRTIMP int * __cdecl ___unguarded_readlc_active_add_func(void);
|
|
|
|
|
|
#else /* not _MT && not _NTSUBSET_ */
|
|
|
|
|
|
/* macros */
|
|
#define _lock_fh(fh)
|
|
#define _lock_str(s)
|
|
#define _lock_str2(i,s)
|
|
#define _lock_fh_check(fh,flag)
|
|
#define _mlock(l)
|
|
#define _munlock(l)
|
|
#define _unlock_fh(fh)
|
|
#define _unlock_str(s)
|
|
#define _unlock_str2(i,s)
|
|
#define _unlock_fh_check(fh,flag)
|
|
|
|
#define _lock_locale(llf)
|
|
#define _unlock_locale(llf)
|
|
|
|
#endif /* _MT */
|
|
|
|
#endif /* __assembler */
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _INC_MTDLL */
|