/*** *os2dll.h - DLL/Multi-thread include * * Copyright (c) 1987-1993, Microsoft Corporation. All rights reserved. * *Purpose: * *Revision History: * 10-27-87 JCR Module created. * 11-13-87 SKS Added _HEAP_LOCK * 12-15-87 JCR Added _EXIT_LOCK * 01-07-88 BCM Added _SIGNAL_LOCK; upped MAXTHREADID from 16 to 32 * 02-01-88 JCR Added _dll_mlock/_dll_munlock macros * 05-02-88 JCR Added _BHEAP_LOCK * 06-17-88 JCR Corrected prototypes for special mthread debug routines * 08-15-88 JCR _check_lock now returns int, not void * 08-22-88 GJF Modified to also work for the 386 (small model only) * 06-05-89 JCR 386 mthread support * 06-09-89 JCR 386: Added values to _tiddata struc (for _beginthread) * 07-13-89 JCR 386: Added _LOCKTAB_LOCK * 08-17-89 GJF Cleanup, now specific to OS/2 2.0 (i.e., 386 flat model) * 10-30-89 GJF Fixed copyright * 01-02-90 JCR Moved a bunch of definitions from os2dll.inc * 04-06-90 GJF Added _INC_OS2DLL stuff and #include . Made * all function _CALLTYPE2 (for now). * 04-10-90 GJF Added prototypes for _[un]lockexit(). * 08-16-90 SBM Made _terrno and _tdoserrno int, not unsigned * 09-14-90 GJF Added _pxcptacttab, _pxcptinfoptr and _fpecode fields * to _tiddata struct. * 10-09-90 GJF Thread ids are of type unsigned long. * 12-06-90 SRW Added _OSFHND_LOCK * 06-04-91 GJF Win32 version of multi-thread types and prototypes. * 08-15-91 GJF Made _tdoserrno an unsigned long for Win32. * 08-20-91 JCR C++ and ANSI naming * 09-29-91 GJF Conditionally added prototypes for _getptd_lk * and _getptd1_lk for Win32 under DEBUG. * 10-03-91 JCR Added _cvtbuf to _tiddata structure * 02-17-92 GJF For Win32, replaced _NFILE_ with _NHANDLE_ and * _NSTREAM_. * 03-06-92 GJF For Win32, made _[un]mlock_[fh|stream]() macros * directly call _[un]lock(). * 03-17-92 GJF Dropped _namebuf field from _tiddata structure for * Win32. * 08-05-92 GJF Function calling type and variable type macros. * 12-03-91 ETC Added _wtoken to _tiddata, added intl LOCK's; * added definition of wchar_t (needed for _wtoken). * 08-14-92 KRS Port ETC's _wtoken change from other tree. * 08-21-92 GJF Merged 08-05-92 and 08-14-92 versions. * 12-03-92 KRS Added _mtoken field for MTHREAD _mbstok(). * 01-21-93 GJF Removed support for C6-386's _cdecl. * 02-25-93 GJF Purged Cruiser support and many outdated definitions * and declarations. * 12-14-93 SKS Add _freeptd(), which frees per-thread CRT data * ****/ #ifndef _INC_OS2DLL #ifdef __cplusplus extern "C" { #endif #include /* * Conditional macro definition for function calling type and variable type * qualifiers. */ #if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) ) /* * Definitions for MS C8-32 (386/486) compiler */ #define _CRTAPI1 __cdecl #define _CRTAPI2 __cdecl #else /* * Other compilers (e.g., MIPS) */ #define _CRTAPI1 #define _CRTAPI2 #endif /* * Define the number of supported handles and streams. The definitions * here must exactly match those in internal.h (for _NHANDLE_) and stdio.h * (for _NSTREAM_). */ #ifdef MTHREAD #define _NHANDLE_ 256 #define _NSTREAM_ 40 #else #define _NHANDLE_ 64 #define _NSTREAM_ 20 #endif /* Lock symbols */ /* ---- do not change lock #1 without changing emulator ---- */ #define _SIGNAL_LOCK 1 /* lock for signal() & emulator SignalAddress */ /* emulator uses \math\include\os2dll.inc */ #define _IOB_SCAN_LOCK 2 /* _iob[] table lock */ #define _TMPNAM_LOCK 3 /* lock global tempnam variables */ #define _INPUT_LOCK 4 /* lock for _input() routine */ #define _OUTPUT_LOCK 5 /* lock for _output() routine */ #define _CSCANF_LOCK 6 /* lock for _cscanf() routine */ #define _CPRINTF_LOCK 7 /* lock for _cprintf() routine */ #define _CONIO_LOCK 8 /* lock for conio routines */ #define _HEAP_LOCK 9 /* lock for heap allocator routines */ #define _BHEAP_LOCK 10 /* lock for based heap routines */ #define _TIME_LOCK 11 /* lock for time functions */ #define _ENV_LOCK 12 /* lock for environment variables */ #define _EXIT_LOCK1 13 /* lock #1 for exit code */ #define _EXIT_LOCK2 14 /* lock #2 for exit code */ #define _THREADDATA_LOCK 15 /* lock for thread data table */ #define _POPEN_LOCK 16 /* lock for _popen/_pclose database */ #define _LOCKTAB_LOCK 17 /* lock to protect semaphore lock table */ #define _OSFHND_LOCK 18 /* lock to protect _osfhnd array */ #define _SETLOCALE_LOCK 19 /* lock for locale handles, etc. */ #define _LC_COLLATE_LOCK 20 /* lock for LC_COLLATE locale */ #define _LC_CTYPE_LOCK 21 /* lock for LC_CTYPE locale */ #define _LC_MONETARY_LOCK 22 /* lock for LC_MONETARY locale */ #define _LC_NUMERIC_LOCK 23 /* lock for LC_NUMERIC locale */ #define _LC_TIME_LOCK 24 /* lock for LC_TIME locale */ #define _STREAM_LOCKS 25 /* Table of stream locks */ #ifdef _WIN32_ #define _LAST_STREAM_LOCK (_STREAM_LOCKS+_NSTREAM_-1) /* Last stream lock */ #else #define _LAST_STREAM_LOCK (_STREAM_LOCKS+_NFILE_-1) /* Last stream lock */ #endif #define _FH_LOCKS (_LAST_STREAM_LOCK+1) /* Table of fh locks */ #ifdef _WIN32_ #define _LAST_FH_LOCK (_FH_LOCKS+_NHANDLE_-1) /* Last fh lock */ #else #define _LAST_FH_LOCK (_FH_LOCKS+_NFILE_-1) /* Last fh lock */ #endif #define _TOTAL_LOCKS (_LAST_FH_LOCK+1) /* Total number of locks */ #define _LOCK_BIT_INTS (_TOTAL_LOCKS/(sizeof(unsigned)*8))+1 /* # of ints to hold lock bits */ /* Multi-thread macros and prototypes */ #ifdef MTHREAD /* need wchar_t for _wtoken field in _tiddata */ #ifndef _WCHAR_T_DEFINED typedef unsigned short wchar_t; #define _WCHAR_T_DEFINED #endif extern unsigned long _CRTAPI1 __threadid(void); #define _threadid (__threadid()) extern unsigned long _CRTAPI1 __threadhandle(void); #define _threadhandle (__threadhandle()) /* Structure for each thread's data */ struct _tiddata { unsigned long _tid; /* thread ID */ unsigned long _thandle; /* thread handle */ int _terrno; /* errno value */ unsigned long _tdoserrno; /* _doserrno value */ unsigned int _fpds; /* Floating Point data segment */ unsigned long _holdrand; /* rand() seed value */ char * _token; /* ptr to strtok() token */ wchar_t * _wtoken; /* ptr to wcstok() token */ #ifdef _MBCS unsigned char * _mtoken; /* ptr to _mbstok() token */ #endif /* following pointers get malloc'd at runtime */ char * _errmsg; /* ptr to strerror()/_strerror() buff */ char * _namebuf0; /* ptr to tmpnam() buffer */ char * _namebuf1; /* ptr to tmpfile() buffer */ char * _asctimebuf; /* ptr to asctime() buffer */ void * _gmtimebuf; /* ptr to gmtime() structure */ char * _cvtbuf; /* ptr to ecvt()/fcvt buffer */ /* following fields are needed by _beginthread code */ void * _initaddr; /* initial user thread address */ void * _initarg; /* initial user thread argument */ /* following three fields are needed to support signal handling and * runtime errors */ void * _pxcptacttab; /* ptr to exception-action table */ void * _tpxcptinfoptrs; /* ptr to exception info pointers */ int _tfpecode; /* float point exception code */ }; typedef struct _tiddata * _ptiddata; /* * Declaration of TLS index used in storing pointers to per-thread data * structures. */ extern unsigned long __tlsindex; /* macros */ #define _lock_fh(fh) _lock(fh+_FH_LOCKS) #define _lock_str(s) _lock(s+_STREAM_LOCKS) #define _lock_fh_check(fh,flag) if (flag) _lock_fh(fh) #define _mlock(l) _lock(l) #define _munlock(l) _unlock(l) #define _unlock_fh(fh) _unlock(fh+_FH_LOCKS) #define _unlock_str(s) _unlock(s+_STREAM_LOCKS) #define _unlock_fh_check(fh,flag) if (flag) _unlock_fh(fh) /* multi-thread routines */ void _CRTAPI1 _lock(int); void _CRTAPI1 _lockexit(void); void _CRTAPI1 _unlock(int); void _CRTAPI1 _unlockexit(void); _ptiddata _CRTAPI1 _getptd(void); /* return address of per-thread CRT data */ void _CRTAPI1 _freeptd(_ptiddata); /* free up the per-thread CRT data blocks */ #else /* not MTHREAD */ /* macros */ #define _lock_fh(fh) #define _lock_str(s) #define _lock_fh_check(fh,flag) #define _mlock(l) #define _munlock(l) #define _unlock_fh(fh) #define _unlock_str(s) #define _unlock_fh_check(fh,flag) #endif /* MTHREAD */ #ifdef __cplusplus } #endif #define _INC_OS2DLL #endif /* _INC_OS2DLL */