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Diffstat (limited to 'private/crt32/h/file2.h')
| -rw-r--r-- | private/crt32/h/file2.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/private/crt32/h/file2.h b/private/crt32/h/file2.h new file mode 100644 index 000000000..06c2dddf2 --- /dev/null +++ b/private/crt32/h/file2.h @@ -0,0 +1,71 @@ +/*** +*file2.h - auxiliary file structure used internally by file run-time routines +* +* Copyright (c) 1985-1993, Microsoft Corporation. All rights reserved. +* +*Purpose: +* This file defines the auxiliary file structure used internally by +* the file run time routines. +* [Internal] +* +*Revision History: +* 06-29-87 JCR Removed _OLD_IOLBF/_OLD_IOFBF and associated lbuf macro. +* 09-28-87 JCR Added _iob_index(); modified ybuf() and tmpnum() to use it. +* 06-03-88 JCR Added _iob2_ macro; modified ybuf()/tmpnum()/_iob_index; +* also padded FILE2 definition to be the same size as FILE. +* 06-10-88 JCR Added ybuf2()/bigbuf2()/anybuf2() +* 06-14-88 JCR Added (FILE *) casts to _iob_index() macro +* 06-29-88 JCR Added _IOFLRTN bit (flush stream on per routine basis) +* 08-18-88 GJF Revised to also work with the 386 (small model only). +* 12-05-88 JCR Added _IOCTRLZ bit (^Z encountered by lowio read) +* 04-11-89 JCR Removed _IOUNGETC bit (no longer needed) +* 07-27-89 GJF Cleanup, now specific to the 386. Struct field +* alignment is now protected by pack pragma. +* 10-30-89 GJF Fixed copyright +* 02-16-90 GJF _iob[], _iob2[] merge +* 02-21-90 GJF Restored _iob_index() macro +* 02-28-90 GJF Added #ifndef _INC_FILE2 stuff. Also, removed some +* (now) useless preprocessor directives. +* 07-11-90 SBM Added _IOCOMMIT bit (lowio commit on fflush call) +* 03-11-92 GJF Removed _tmpnum() macro for Win32. +* 06-03-92 KRS Added extern "C" stuff. +* 02-23-93 SKS Update copyright to 1993 +* +****/ + +#ifndef _INC_FILE2 + +#ifdef __cplusplus +extern "C" { +#endif + +/* Additional _iobuf[]._flag values */ + +#define _IOYOURBUF 0x0100 +#define _IOFEOF 0x0800 +#define _IOFLRTN 0x1000 +#define _IOCTRLZ 0x2000 +#define _IOCOMMIT 0x4000 + +/* Macro for getting _iob[] index */ + +#define _iob_index(s) ((FILE *)(s) - (FILE *)_iob) + +/* General use macros */ + +#define inuse(s) ((s)->_flag & (_IOREAD|_IOWRT|_IORW)) +#define mbuf(s) ((s)->_flag & _IOMYBUF) +#define nbuf(s) ((s)->_flag & _IONBF) +#define ybuf(s) ((s)->_flag & _IOYOURBUF) +#define bigbuf(s) ((s)->_flag & (_IOMYBUF|_IOYOURBUF)) +#define anybuf(s) ((s)->_flag & (_IOMYBUF|_IONBF|_IOYOURBUF)) +#ifdef _CRUISER_ +#define _tmpnum(s) ((s)->__tmpnum) +#endif /* _CRUISER_ */ + +#ifdef __cplusplus +} +#endif + +#define _INC_FILE2 +#endif /* _INC_FILE2 */ |